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NEWSLETTER 09/2013 23.09.2013

 
Please acknowledge use of the database www.shark-references.com in your publications, and cite: 

Pollerspöck, J. 2013, Bibliography database of living/fossil sharks, rays and chimaeras (Chondrichtyes: Elasmobranchii, Holocephali), www.shark-references.com, World Wide Web electronic publication, Version 2013
 

PARTNERS OF SHARK-REFERENCES:

 

         Partner in Google-Maps:                           

 

New images at shark-references:


Many thanks to the following persons for the permission to use their images:



Please support shark-references and send your images to: info@shark-references.com
 

Missing papers:

Many thanks to all friends of shark-references, who send me some missing papers last month!

Shark-References would kindly like to ask you for your contribution to this project.

Please support www.shark-references.com and send missing papers (not listed papers or papers without the infosymbol) to juergen.pollerspoeck@shark-references.com.

 

 

Meetings:


3rd International Whale Shark Conference

Bringing the whale shark research and conservation community together
Registration and abstract submission information for the 3rd International Whale Shark Conference, to be held at the Georgia Aquarium in Atlanta USA, October 6-10, 2013

Abstracts must be submitted to info@iwsc3.info by JULY 1, 2013
Abstracts will be considered as candidates for either oral or author-attended poster sessions.  Authors should state their preference in the email accompanying the submission, but the Scientific Program Committee will make the final determination

For more information please visit: http://iwsc3.info/
 

EEA Conference 2013



The Shark Trust is delighted to be hosting the 17th European Elasmobranch Association (EEA) conference in Plymouth this November. Plymouth is a centre of marine excellence and the Trust is pleased to announce the conference will be hosted in association with the Marine Institute of Plymouth University and the National Marine Aquarium.

for more information please visit: 
http://www.sharktrust.org/en/eea2013

 

News from shark-references:

New feature: Host-Parasites List (new designed) and Parasite-Hosts List


Here you will find now information about parasites
  • Species Descriptions (e.g. extract of Aetobatus narinari):

    Parasites (arranged by Jürgen Pollerspöck)
    Monogenea
    Cestoda
  • Host-Parasites List (e.g. extract of item "A"):

      
    Aculeola nigra (19)
    DE BUEN, 1959 
    Copepoda
    • Eudactylina chilensis HO & MCKINNEY, 1981
      
    Aetobatus flagellum (31)
    (BLOCH & SCHNEIDER, 1801) 
    Cestoda
    • Polypocephalus bombayensis SHINDE, DHULE & JADHAV, 1991
      • SHINDE, G.B. et.al. (1991) [16402]

    Isopoda
    • Gnathia trimaculata COETZEE, SMIT, GRUTTER & DAVIES, 2009
      • COETZEE, M.L. et.al. (2009) [7418]
      • OTA, Y. et.al. (2012) [17188]
      
    Aetobatus narinari (195)
    (EUPHRASEN, 1790) 
    Monogenea
    • Clemacotyle australis YOUNG, 1967
      • YOUNG, P.C. (1967) [17104]
      • BEVERLEY-BURTON, M. et.al. (1995) [7571]
      • JANSE, M. et.al. (2003) [7102]
      • MARIE, A.D. et.al. (2005) [7394]
    • Decacotyle elpora MARIE & JUSTINE, 2005
      • MARIE, A.D. et.al. (2005) [7394]

  • Parasite-Hosts List  (e.g. extract of item "A"):


     
    Aberrapex arrhynchum (3)
    (BROOKS, MAYES & THORSON, 1981) JENSEN, 2001 
    • Myliobatis goodei GARMAN, 1885 (Myliobatiformes: Myliobatidae)
      • BROOKS, D.R. et.al. (1981) [16267] ( used parasite: Discobothrium arrhynchum)
      • JENSEN, K. (2001) [7588]
      • JENSEN, K. (2005) [16338]
     
    Aberrapex manjajiae (1)
    JENSEN, 2006 
    • Taeniura lymma (FORSSKÅL, 1775) (Myliobatiformes: Dasyatidae)
     
    Aberrapex senticosus (2)
    JENSEN, 2001 
    • Myliobatis californica GILL, 1865 (Myliobatiformes: Myliobatidae)
     
    Aberrapex weipaensis (1)
    KOCH, JENSEN & CAIRA, 2012 
    • Aetomylaeus vespertilio (BLEEKER, 1852) (Myliobatiformes: Myliobatidae)
      • KOCH, K.R. et.al. (2012) [15523]
     
    Acanthobothrium adlardi (1)
    CAMPBELL & BEVERIDGE, 2002 
    • Aptychotrema vincentiana (HAACKE, 1885) (Rajiformes: Rhinobatidae)
      • CAMPBELL, R.A. et.al. (2002) [16128]
    • Dasyatis brevicaudata (HUTTON, 1875) (Myliobatiformes: Dasyatidae)
      • CAMPBELL, R.A. et.al. (2002) [16128]
    • Dipturus cerva (WHITLEY, 1939) (Rajiformes: Rajidae)
      • CAMPBELL, R.A. et.al. (2002) [16128] (used host: Raja cerva )
 
 

New book:

 
A new book about Whale sharks (Rhincodon typus) from Dení Ramírez Macías (http://www.whalesharkmexico.com/):

RAMÍREZ-MACÍAS, D. 2013 Genética del tiburón ballena y estimación de abundancia en México. Publicia, ISBN-10: 3639551451, ISBN-13: 978-3639551457: 156pp

Thanks a lot to Dení for this information.



 
 

New described species/Taxonomic News:


Recent:


BORSA, P. & ARLYZA, I.S. & CHEN, W.-J. & DURAND, J.-D. & MEEKAN, M.G. & SHEN, K.-N. (2013): Resurrection of New Caledonian maskray Neotrygon trigonoides (Myliobatoidei: Dasyatidae) from synonymy with N. kuhlii, based on cytochrome-oxidase I gene sequences and spotting patterns. Comptes Rendus Biologies, 336 (4): 221-232
 
New species: Neotrygon trigonoides (resurrection)
Abstract: The maskray from New Caledonia, Neotrygon trigonoides Castelnau, 1873, has been recently synonymized with the blue-spotted maskray, N. kuhlii (Müller and Henle, 1841), a species with wide Indo-West Pacific distribution, but the reasons for this are unclear. Blue-spotted maskray specimens were collected from the Indian Ocean (Tanzania, Sumatra) and the Coral Triangle (Indonesia, Taiwan, and West Papua), and N. trigonoides specimens were collected from New Caledonia (Coral-Sea). Their partial COI gene sequences were generated to expand the available DNA-barcode database on this species, which currently comprises homologous sequences from Ningaloo Reef, the Coral Triangle and the Great Barrier Reef (Coral-Sea). Spotting patterns were also compared across regions. Haplotypes from the Coral-Sea formed a haplogroup phylogenetically distinct from all other haplotypes sampled in the Indo-West Pacific. No clear-cut geographic composition relative to DNA-barcodes or spotting patterns was apparent in N. kuhlii samples across the Indian Ocean and the Coral Triangle. The New Caledonian maskray had spotting patterns markedly different from all the other samples. This, added to a substantial level of net nucleotide divergence (2.6%) with typical N. kuhlii justifies considering the New Caledonian maskray as a separate species, for which we propose to resurrect the name Neotrygon trigonoides.
 
QUATTRO, J.M. & DRIGGERS, W.B. & GRADY, J.M. & ULRICH, G.F. & ROBERTS, M.A. (2013): Sphyrna gilberti sp. nov., a new hammerhead shark (Carcharhiniformes, Sphyrnidae) from the western Atlantic Ocean. Zootaxa, 3702 (2): 159-178
 
New species: Sphyrna gilberti
Abstract: Sphyrna gilberti sp. nov. is described based on 54 specimens collected in the coastal waters of South Carolina, U.S.A. Morphologically, S. gilbertisp. nov. is separable from S. lewini (Griffith & Smith 1834) only in the number of precaudal vertebrae. Due to rarity of specimens and the highly migratory behavior of most sphyrnids, the range of S. gilbertisp. nov. is unknown. 

Parasites:


IVANOV, V.A. & CAIRA, J.N. (2013): Two new species of Halysioncum Caira, Marques, Jensen, Kuchta et Ivanov, 2013 (Cestoda, Diphyllidea) from Indo-Pacific rays of the genus Aetomylaeus Garman (Myliobatiformes, Myliobatidae). Folia Parasitologica, 60 (4): 321-330
 
New species: Halysioncum gibsoni, Halysioncum arafurense
Abstract: Recent collections of cestode parasites from two species of the myliobatid genus Aetomylaeus Garman from several localities in the Pacific Ocean resulted in the discovery of two new species of Halysioncum Caira, Marques, Jensen, Kuchta et Ivanov, 2013. Halysioncum gibsoni sp. n. from Aetomylaeus maculatus (Gray) in the South China Sea off Borneo differs from all of its congeners in having the following combination of characters: 27 apical hooks (14 type A and 13 type B hooks), 11–12 lateral hooklets, 22–28 spines per column on the cephalic peduncle, testes distributed in a single column and an internal seminal vesicle. Halysioncum arafurense sp. n., recovered from Aetomylaeus cf. nichofii 2 (sensu Naylor et al. 2012b) in the Arafura Sea off the Wessel Islands, Northern Territory, Australia, can be distinguished from its congeners based on the following combination of characters: 23 apical hooks (12 type A and 11 type B hooks), the number of lateral hooklets (9–11), the number of spines per column on the cephalic peduncle (20–24), the number and distribution of the testes (13–15 testes in two irregular columns), and the distribution of vitelline follicles (interrupted dorsally at the level of the ovarian lobes). Both species represent the first verified records of diphyllideans from eagle rays of the genus Aetomylaeus and formally extend the host associations of diphyllideans to include a third genus of Myliobatiformes. The myliobatiforms are indeed an understudied group of available hosts for diphyllideans and represent interesting target hosts if the diversity of diphyllidean tapeworms is to be fully estimated and understood.
 
ORÉLIS-RIBEIRO, R. & RUIZ, C.F. & CURRAN, S.S. & BULLARD, S.A. (2013):Blood flukes (Digenea: Aporocotylidae) of lamniforms: Redescription of Hyperandrotrema cetorhini from basking shark (Cetorhinus maximus) and description of a new congener from shortfin mako shark (Isurus oxyrinchus) off Alabama. Journal of Parasitology, 99 (5): in press
 
New species: Hyperandrotrema walterboegeri, Hyperandrotrema cetorhini (redescription)
Abstract: We emend the original generic diagnosis for Hyperandrotrema Maillard and Ktari, 1978 and redescribe its type species Hyperandrotrema cetorhini Maillard and Ktari, 1978 (Digenea: Aporocotylidae Odhner, 1912) based on the holotype and 2 paratypes collected from the heart of basking shark (Cetorhinus maximus). We also describe Hyperandrotrema walterboegeri Orélis-Ribeiro and Bullard n. sp. based on light and scanning electron microscopy of 6 adult specimens collected from the heart of a shortfin mako shark (Isurus oxyrinchus Rafinesque, 1810) captured from Viosca Knoll (N29°11.70'; W88°33.32'; 123 km southwest of Dauphin Island, Alabama), northern Gulf of Mexico. Hyperandrotrema spp. infect lamniforms and differ from all other nominal aporocotylids at least by having a ventrolateral field of robust C-shaped spines (rather than transverse rows of minute, shaft-like spines), an inverse U-shaped intestine with extremely elongate ceca terminating near the level of the excretory bladder, and a common genital pore that comprises the dorsal opening of a common genital atrium. Adults of the new species exceeded 12 mm in total length, making them the largest of the nominal fish blood flukes. The new species further differs from H. cetorhini by the combination of having an adult body that is 7-8 × longer than wide, large midbody tegumental spines measuring 25-38 µm long × 10-12 µm wide, a long vas deferens 4-5% of the body length, a testis 9-11 × longer than wide, and a large ootype 105-150 µm long × 85-105 µm wide. This is the first report of Hyperandrotrema from the Gulf of Mexico and the second aporocotylid species reported from an epipelagic elasmobranch. Our results demonstrate that ecologically-related (epipelagic, marine) and phylogenetically-related (Lamniformes) definitive hosts are infected by morphologically similar (congeneric) fish blood flukes.
 
PATELLA, R. & BULLARD, S.A. (2013): Hexabothriids of devil rays (Mobulidae): New genus and species from gill of Mobula hypostoma in the Gulf of Mexico and redescription of a congener from Mobula rochebrunei in the eastern Atlantic Ocean.Journal of Parasitology, 99 (5): in press   
 
New genus: Mobulicola
New species: Mobulicola enantiomorphica, Mobulicola dubium (redescription)
Abstract: A new species of Hexabothriidae, Mobulicola enantiomorphica n. gen., n. sp., is described based on specimens collected from the gill of a lesser devil ray, Mobula hypostoma (Bancroft, 1831), (Rajiformes: Mobulidae) captured in the northern Gulf of Mexico (30°13'49.22"N, 88°20'31.69"W) off Dauphin Island, Alabama. We also herein redescribe Mobulicola dubium (Euzet and Maillard, 1967) n. comb. based on the holotype (36HG-69-1) and paratypes (36HG-69-2 and 36HG-69-3) collected from the gill of a lesser Guinean devil ray, Mobula rochebrunei (Vaillant, 1879), captured in the eastern Atlantic Ocean off the island of Gorée (14°40'02.26"N, 17°23'4.96"W), Senegal. Mobulicola has the following combination of diagnostic features that differentiate it from other hexabothriid genera: haptor symmetrical; vasa efferentia narrow for entire length (not dilated distally), glandular-walled, joining medially immediately anterior to testicular field; vas deferens glandular for part or all of length and extensively convoluted; male copulatory organ massive, oblong, unarmed, dilated for entire length, lacking prostatic region; seminal receptacle present; ootype lacking longitudinal rows of large cells (ootype côtelé); vaginae parallel, with well-differentiated proximal (narrow, tube-like) and distal (laterally-expanded, musculoglandular) portions; uterine eggs with 2 elongate filaments. Mobulicola is morphologically most similar to Branchotenthes Bullard and Dippenaar, 2003 but differs from it by the combination of having short, delicate vasa efferentia that are narrow for their entire length and that each extend slightly anteriad from the testicular field before uniting medially, a vas deferens that is convoluted between the common vitelline duct and male copulatory organ, an ovate, compact seminal receptacle, an ovary that ascends, descends, then ascends, and a proximal uterus that is extensively convoluted posterior to the male copulatory organ. The new species differs from M. dubium by the combination of having a proportionally shorter sclerite hook (19-29% of sclerite shaft total length), a vas deferens that is glandular-walled and laterally-expanded proximally and non-glandular and narrow distally, and a common vitelline duct with dextral and sinistral loops extending anteriad. This is only the second report of a hexabothriid from a mobulid and the first report of a monogenoid from M. hypostoma.
 
RUIZ, C.F. & BULLARD, S.A. (2013): Huffmanela markgracei sp. n. (Nematoda: Trichosomoididae) from buccal cavity of Atlantic sharpnose shark, Rhizoprionodon terraenovae, (Carcharhiniformes: Carcharhinidae) in the northwestern Gulf of Mexico off Texas. Folia Parasitologica, 60 (4): 353-358
 
New species: Huffmanela markgracei
Abstract: Eggs of Huffmanela markgracei sp. n. infected one of three Atlantic sharpnose sharks, Rhizoprionodon terraenovae (Richardson) (Carcharhiniformes: Carcharhinidae) captured by bottom long-line in the northwestern Gulf of Mexico off Padre Island, Texas. Eggs in the skin formed sinuous tracks (1–8 eggs wide; 1–4 eggs deep; 150 eggs/mm2) occupying a swath of the skin 22 cm × 2 cm on the tongue, branchial arches and the dorsal surface of the buccal cavity. Eggs had transverse eggshell ridges (branching and non-branching), had shells that were clear, amber or brown, and measured 90–113 µm (x = 102 ± 4; n = 190) long, 38–54 µm (43 ± 3; 190) wide, 3–5 µm (4 ± 0; 190) in eggshell thickness with protruding polar plugs 8–12 µm (10 ± 1; 190) wide. Apparently fully developed larvae in eggs were 255–335 µm (299 ± 26; 30) long, 8–10 µm (9 ± 1; 30) wide, and in-folded 5–6 (6 ± 0; 30) times. Some of these larvae were emerging from eggs in the skin. The new species differs from congeners by the combination of having a  large, spindle-shaped egg, transverse eggshell ridges, an envelope that is smooth, tightly-apposed to the eggshell and surrounds the entire eggshell inclusive of the polar plugs, and a large larva. This is the first report of a species of Huffmanela Moravec, 1987 from a chondrichthyan in the Gulf of Mexico and from a shark not assigned to Carcharhinus.
 
SCHAEFFNER, B.C. & BEVERIDGE, I. (2013): Prochristianella mattisi sp. n. (Trypanorhyncha: Eutetrarhynchidae) from the wedgenose skate, Dipturus whitleyi (Rajiformes: Rajidae), from Tasmania (Australia). Folia Parasitologica, 60 (3): 257-263
 
New species: Prochristianella mattisi
Abstract: A new species of Prochristianella Dollfus, 1946 is described from the spiral intestine of the wedgenose skate, Dipturus whitleyi (Iredale) (Rajiformes: Rajidae), off the north-western coast of Tasmania (Australia). Prochristianella mattisi sp. n. is characterised by an acraspedote scolex, two oval bothria, elongate, bent bulbs, a retractor muscle inserting at the base of each bulb and the presence of gland-cells within the bulbs and prebulbar organs. The tentacular armature is typical heteroacanthous, heteromorphous, with a characteristic basal oncotaxy and a metabasal armature with hooks first increasing and then decreasing in size along each principle row. It can be differentiated from other species of Prochristianella by a combination of morphological characters, such as the metabasal tentacular armature with eight hooks per principle row, a unique basal armature without enlarged hooks on the basal swelling and genital pores slightly posterior to the mid-line of the segment. The description of P. mattisi sp. n. increases the number of known species within Prochristianella to 20, eight of which occur in Australian waters. A key for the identification to species within Prochristianella is provided. 



Fossil:


GUINOT, G. & UNDERWOOD, C.J. & CAPPETTA, H. & WARD, D.J. (2013): Sharks (Elasmobranchii: Euselachii) from the Late Cretaceous of France and the UK. Journal of Systematic Palaeontology, 11 (6): 589-671
 
New genera: Sigmoscyllium, Adnetoscyllium, Palaeotriakis, Platyrhizodon
New species: Protosqualus barringtonensis, Heterodontus boussioni, Heterodontus laevis, Adnetoscyllium angloparisensis, Chiloscyllium frequens, Chiloscyllium vulloi, Pararhincodon ornatus, Cederstroemia siverssoni, Pseudocorax duchaussoisi, Squalicorax bernardezi, Eoptolamna supracretacea, Anomotodon genaulti, Scyliorhinus monsaugustus, Scyliorhinus muelleri, Sigmoscyllium acuspidatum, Paratriakis robustus, Platyrhizodon gracilis, Platyrhizodon barbei
Abstract: Bulk-sampling of 22 phosphatic horizons from the Upper Cretaceous of northern France and the UK has yielded very rich selachian faunas dominated by shark taxa. These samples, collected from Cenomanian to Campanian Chalks and one glauconitic sediment, allow the identification of numerous new taxa, and improve our knowledge of northern European Late Cretaceous selachian assemblages, with a special focus on small to minute remains that were previously overlooked. Among the 96 taxa described here, 18 species and four genera are newly described: Protosqualus barringtonensis sp. nov., Heterodontus boussioni sp. nov., Heterodontus laevis sp. nov., Adnetoscyllium angloparisensis gen. et sp. nov., Chiloscyllium frequens sp. nov., Chiloscyllium vulloi sp. nov., Pararhincodon ornatus sp. nov., Cederstroemia siverssoni sp. nov., Pseudocorax duchaussoisi sp. nov., Squalicorax bernardezi sp. nov., Eoptolamna supracretacea sp. nov., Anomotodon genaulti sp. nov., Scyliorhinus monsaugustus sp. nov., Scyliorhinus muelleri sp. nov., Sigmoscyllium acuspidatum gen. et sp. nov., Palaeotriakis gen. nov., Paratriakis robustus sp. nov., Platyrhizodon gracilis gen. et sp. nov. and Platyrhizodon barbei gen. et sp. nov. In addition, numerous potential new taxa are left in open nomenclature pending the discovery of more material. Stratigraphical and geographical ranges of taxa are updated and observations on the dentition of a few species (Anomotodon hermani, Cederstroemia, Carcharias latus, Palaeotriakis, Paratriakis) are made. An updated Late Cretaceous selachian fossil record and global standing diversity are also presented.
 
CLAESON, K.M. & UNDERWOOD, C.J. & WARD, D.J. (2013): †Tingitanius tenuimandibulus, a new platyrhinid batoid from the Turonian (Cretaceous) of Morocco and the cretaceous radiation of the Platyrhinidae. Journal of Vertebrate Paleontology, 33 (5): 1019-1036
 
New species: Tingitanius tenuimandibulus
Abstract: An exceptionally well-preserved specimen of a batoid from the Turonian (Late Cretaceous) of Morocco has been named as †Tingitanius tenuimandibulus, sp. nov. The fossil has been identified as a member of the Platyrhinidae and represents the oldest known example of a thornback ray. Mechanical and acid preparation of the ventral surface has revealed the general body form of the specimen and permitted teeth and three morphotypes of dermal denticles to be extracted. Computed tomographic (CT) scanning of the chondrocranium and thoracic region has allowed the detailed study of the skeletal elements concealed within the rock. The phylogenetic position of the new specimen and implications for the phylogenetic positions of the ‘rhinobatoids’ are discussed. †Britobatos, gen. nov., is erected to accommodate †Raja primarmata which is here shown to be a sister taxon to the Platyrhinidae including †Tingitanius. It is likely that reassessment of isolated batoid teeth from the Cretaceous and Paleogene will confirm the former importance of the Platyrhinidae.
 
 

New Paper


Recent Papers:

ACUÑA-MARRERO, D. & ZIMMERHACKEL, J.S. & MAYORGA, J. & HEARN, A. (2013): First record of three shark species, Odontaspis ferox, Mustelus albipinnis and Centrophorus squamosus, from the Galápagos Islands. Marine Biodiversity Records, 6: e87   http://dx.doi.org/10.1017/S1755267213000596
AKHILESH, K.V. & BINEESH, K.K. & GANGA, U. & PILLAI, N.G.K. (2013): Report of crocodile shark Pseudocarcharias kamoharai (Pseudocarchariidae) from deep waters off the south-west coast of India. Marine Biodiversity Records, 6: e99  http://dx.doi.org/10.1017/S1755267213000778
AKHILESH, K.V. & BINEESH, K.K. & WHITE, W.T. & SHANIS, C.P.R. & HASHIM, M. & GANGA, U. & PILLAI, N.G.K. (2013): Catch composition, reproductive biology and diet of the bramble shark Echinorhinus brucus (Squaliformes: Echinorhinidae) from the south-eastern Arabian Sea. Journal of Fish Biology, in press  http://dx.doi.org/10.1111/jfb.12201
ANADÓN, R. & RODRÍGUEZ-MOLDES, I. & ADRIO, F. (2013): Glycine-immunoreactive neurons in the brain of a shark (Scyliorhinus canicula L.). Journal of Comparative Neurology, 521 (13): 3057-3082   http://dx.doi.org/10.1002/cne.23332
BAREMORE, I.E. & PASSEROTTI, M.S. (2013): Reproduction of the Blacktip Shark in the Gulf of Mexico. Marine and Coastal Fisheries: Dynamics, Management, and Ecosystem Science, 5 (1): 127-138   http://dx.doi.org/10.1080/19425120.2012.758204
BORSA, P. & ARLYZA, I.S. & CHEN, W.-J. & DURAND, J.-D. & MEEKAN, M.G. & SHEN, K.-N. (2013): Resurrection of New Caledonian maskray Neotrygon trigonoides (Myliobatoidei: Dasyatidae) from synonymy with N. kuhlii, based on cytochrome-oxidase I gene sequences and spotting patterns. Comptes Rendus Biologies, 336 (4): 221-232   http://dx.doi.org/10.1016/j.crvi.2013.05.005
BRODZIAK, J.K.T. & WALSH, W.A. (2013): Model Selection and Multimodel Inference for Standardizing Catch Rates of Bycatch Species: A Case Study of Oceanic Whitetip Shark in the Hawaii-Based Longline Fishery. Canadian Journal of Fisheries and Aquatic Sciences, in press   http://dx.doi.org/10.1139/cjfas-2013-0111
BROOKS, E.J. & SIMS, D.W. & DANYLCHUK, A.J. & SLOMAN, K.A. (2013):Seasonal abundance, philopatry and demographic structure of Caribbean reef shark (Carcharhinus perezi) assemblages in the north-east Exuma Sound, The Bahamas.Marine Biology, in press   http://dx.doi.org/10.1007/s00227-013-2246-0  
BUBLEY, W.J. & SULIKOWSKI, J.A. & KOESTER, D.M. & TSANG, P.C.W. (2013):Using a multi-parameter approach to reassess maturity of spiny dogfish, Squalus acanthias, following increased fishing pressure in the Western North Atlantic. Fisheries Research, 147: 202-212   http://dx.doi.org/10.1016/j.fishres.2013.06.004   
CECCARELLI, D.M. & FRISCH, A.J. & GRAHAM, N.A.J. & AYLING, A.M. & BEGER, M. (2013): Habitat partitioning and vulnerability of sharks in the Great Barrier Reef Marine Park. Reviews in Fish Biology and Fisheries, in press  http://dx.doi.org/10.1007/s11160-013-9324-8  
COUTURIER, L.I.E. & ROHNER, C.A. & RICHARDSON, A.J. & PIERCE, S.J. & MARSHALL, A.D. & JAINE, F.R.A. & TOWNSEND, K.A. & BENNETT, M.B. & WEEKS, S.J. & NICHOLS, P.D. (2013): Unusually High Levels of n-6 Polyunsaturated Fatty Acids in Whale Sharks and Reef Manta Rays. Lipids, in press  http://dx.doi.org/10.1007/s11745-013-3829-8  
DE JESÚS SUÁREZ-MOO, P. & ROCHA-OLIVARES, A. & ZAPATA-PÉREZ, O. & QUIROZ-MORENO, A. & SÁNCHEZ-TEYER, L.F. (2013): High genetic connectivity in the Atlantic sharpnose shark, Rhizoprionodon terraenovae, from the southeast Gulf of Mexico inferred from AFLP fingerprinting. Fisheries Research, 147: 338-343  http://dx.doi.org/10.1016/j.fishres.2013.07.003  
DEBIAIS-THIBAUD, M. & METCALFE, C.J. & POLLACK, J. & GERMON, I. & EKKER, M. & DEPEW, M. & LAURENTI, P. & BORDAY-BIRRAUX, V. & CASANE, D (2013): Heterogeneous Conservation of Dlx Paralog Co-Expression in Jawed
   Vertebrates. PLoS ONE, 8 (6): e68182  http://dx.doi.org/10.1371/journal.pone.0068182  
DELGADO, M. & RUEDA, J.L. & GIL, J. & BURGOS, C. & SOBRINO, I. (2013):Spatial characterization of megabenthic epifauna of soft bottoms around mud volcanoes in the Gulf of Cádiz. Journal of Natural History, 47 (25-28): 1803-1831  http://dx.doi.org/10.1080/00222933.2013.770101  
D'SOUZA, D.G. & RANA, K. & MILLEY, K.M. & MACLEAN, H.E. & ZAJAC, J.D. & BELL, J. & BRENNER, S. & VENKATESH, B. & RICHARDSON, S.J. & DANKS, J.A. (2013): Expression of Wnt signaling skeletal development genes in the cartilaginous fish, elephant shark (Callorhinchus milii). General and Comparative Endocrinology, 193: 1-9   http://dx.doi.org/10.1016/j.ygcen.2013.06.021  
ENAULT, S. & CAPPETTA, H. & ADNET, S. (2013): Simplification of the enameloid microstructure of large stingrays (Chondrichthyes: Myliobatiformes): a functional approach. Zoological Journal of the Linnean Society, 169 (1): 144-155  http://dx.doi.org/10.1111/zoj.12059  
FAVARO, B. AND CÔTÉ, I.M. (2013): Do by-catch reduction devices in longline fisheries reduce capture of sharks and rays? A global meta-analysis. Fish and Fisheries, in press   http://dx.doi.org/10.1111/faf.12055   
FILMALTER, J.D. & DAGORN, L. & COWLEY, P.D. (2013): Spatial behaviour and site fidelity of the sicklefin lemon shark Negaprion acutidens in a remote Indian Ocean atoll. Marine Biology, 160 (9): 2425-2436   http://dx.doi.org/10.1007/s00227-013-2237-1 
GALVÁN-TIRADO, C. & DÍAZ-JAIMES, P. & GARCÍA-DE LEÓN, F.J. & GALVÁN-MAGAÑA, F. & URIBE-ALCOCER, M. (2013): Historical demography and genetic differentiation inferred from the mitochondrial DNA of the silky shark (Carcharhinus falciformis) in the Pacific Ocean. Fisheries Research, 147: 36-46  http://dx.doi.org/10.1016/j.fishres.2013.03.020  
GARRONE NETO, D. & DOS SANTOS, R.S. & MARACINI, P. & CALTABELLOTTA, F.P. & GADIG, O.B.F. (2013): Strandings of the Shortfin Mako and the Pelagic Stingray on the Coast of Sao Paulo State, Southeastern Brazil: Report of Cases. Boletim Do Instituto De Pesca, 39 (2): 187-194   
HADDAD, V. & COSTA CARDOSO, J.L. & GARRONE NETO, D. (2013): Injuries by marine and freshwater stingrays: history, clinical aspects of the envenomations and current status of a neglected problem in Brazil. Journal of Venomous Animals and Toxins Including Tropical Diseases, 19:16   http://dx.doi.org/10.1186/1678-9199-19-16
HENDON, J.M. & KOESTER, D.M. & HOFFMAYER, E.R. & DRIGGERS, W.B. & CICIA, A.M. (2013): Occurrence of an Intersexual Blacktip Shark in the Northern Gulf of Mexico, with Notes on the Standardization of Classifications for This Condition in Elasmobranchs. Marine and Coastal Fisheries: Dynamics, Management, and Ecosystem Science, 5 (1): 174-180   http://dx.doi.org/10.1080/19425120.2013.799618  
HOFFMAYER, E.R. & DRIGGERS, W.B. & JONES, L.M. & HENDON, J.M. & SULIKOWSKI, J.A. (2013): Variability in the Reproductive Biology of the Atlantic Sharpnose Shark in the Gulf of Mexico.  Marine and Coastal Fisheries: Dynamics, Management, and Ecosystem Science, 5 (1): 139-151  http://dx.doi.org/10.1080/19425120.2013.783518   
HOFFMAYER, E.R. & DRIGGERS, W.B. & SULIKOWSKI, J.A. (2013): Introduction to a Special Section: Life History Characteristics of Elasmobranch Fishes from the Western North Atlantic Ocean. Marine and Coastal Fisheries: Dynamics, Management, and Ecosystem Science, 5 (1): 125-126  http://dx.doi.org/10.1080/19425120.2013.799619
HOUK, P. & MUSBURGER, C. (2013): Trophic interactions and ecological stability across coral reefs in the Marshall Islands. Marine Ecology Progress Series, 488: 23-34  http://dx.doi.org/10.3354/meps10410
HOWARD, L.E. & HOLMES, W.M. & FERRANDO, S. & MACLAINE, J.S. & KELSH, R.N. & RAMSEY, A. & ABEL, R.L. & COX, J.P.L. (2013): Functional nasal morphology of chimaerid fishes. Journal of Morphology, 274 (9): 987-1009  http://dx.doi.org/10.1002/jmor.20156  
HUETER, R.E. & TYMINSKI, J.P. & DE LA PARRA, R. (2013): Horizontal Movements, Migration Patterns, and Population Structure of Whale Sharks in the Gulf of Mexico and Northwestern Caribbean Sea. PLoS ONE, 8 (8): e71883  http://dx.doi.org/10.1371/journal.pone.0071883  
JONES, L.M & DRIGGERS, W.B. & HOFFMAYER, E.R. & HANNAN, K.M. & MATHERS, A.N. (2013): Reproductive Biology of the Cuban Dogfish in the Northern Gulf of Mexico. Marine and Coastal Fisheries: Dynamics, Management, and Ecosystem Science, 5 (1): 152-158   http://dx.doi.org/10.1080/19425120.2013.768572  
JUAREZ, M. & REYES, M. & COLEMAN, T. & ROTENSTEIN, L. & SAO, S. & MARTINEZ, D. & JONES, M. & MACKELPRANG, R. & DEBELLARD, M.E. (2013):Characterization of the trunk neural crest in the bamboo shark, Chiloscyllium punctatum. Journal of Comparative Neurology, 521 (14): 3303-3320  http://dx.doi.org/10.1002/cne.23351  
KALMAN, M. & SOMIYA, H. & LAZAREVIC, L. & MILOSEVIC, I. & ARI, C. & MAJOROSSY, K. (2013): Absence of post-lesion reactive gliosis in elasmobranchs and turtles and its bearing on the evolution of astroglia. Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, 320 (6): 351-367  http://dx.doi.org/10.1002/jez.b.22505  
KARIMI, R. & FRISK, M. & FISHER, N.S. (2013): Contrasting Food Web Factor and Body Size Relationships with Hg and Se Concentrations in Marine Biota. PLoS ONE, 8 (9): e74695   http://dx.doi.org/10.1371/journal.pone.0074695  
KEMPER, C. (2013): Haiangriffe Die gefährlichsten Strände der Welt. tredition GmbH, hamburg, 329 pp
KNEEBONE, J. & CHISHOLM, J. & BERNAL, D. & SKOMAL, G. (2013): The physiological effects of capture stress, recovery, and post-release survivorship of juvenile sand tigers (Carcharias taurus) caught on rod and reel. Fisheries Research, 147: 103-114   http://dx.doi.org/10.1016/j.fishres.2013.04.009  
LIANG, L. & REINICK, C. & ANGLESON, J.K. & DORES, R.M. (2013): Evolution of melanocortin receptors in cartilaginous fish: Melanocortin receptors and the stress axis in elasmobranches. General and Comparative Endocrinology, 181: 4-9  http://dx.doi.org/10.1016/j.ygcen.2012.08.016  
LYONS, K. & JARVIS, E.T. & JORGENSEN, S.J. & WENIG, K. & O'SULLIVAN, J. & WINKLER, C. & LOWE, C.G. (2013): The degree and result of gillnet fishery interactions with juvenile white sharks in southern California assessed by fishery-independent and -dependent methods. Fisheries Research, in press  http://dx.doi.org/10.1016/j.fishres.2013.07.009   
MACESIC, L.J. & MULVANEY, D. & BLEVINS, E.L. (2013): Synchronized swimming: coordination of pelvic and pectoral fins during augmented punting by the freshwater stingray Potamotrygon orbignyi. Zoology, 116 (3): 144-150  http://dx.doi.org/10.1016/j.zool.2012.11.002  
MAIA, A. & WILGA, C.A. (2013): Function of dorsal fins in bamboo shark during steady swimming. Zoology, 116 (4): 224-231   http://dx.doi.org/10.1016/j.zool.2013.05.001  
MATSUNAGA, H. & YOKAWA, K. (2013): Distribution and ecology of bigeye thresher Alopias superciliosus in the Pacific Ocean. Fisheries Science, 79 (5): 737-748  http://dx.doi.org/10.1007/s12562-013-0660-3   
MCCALLISTER, M. & FORD, R. & GELSLEICHTER, J. (2013): Abundance and Distribution of Sharks in Northeast Florida Waters and Identification of Potential Nursery Habitat. Marine and Coastal Fisheries: Dynamics, Management, and Ecosystem Science, 5 (1): 200-210   http://dx.doi.org/10.1080/19425120.2013.786002   
MCCUTCHEON, S.M. & KAJIURA, S.M. (2013): Electrochemical properties of lanthanide metals in relation to their application as shark repellents. Fisheries Research, 147: 47-54   http://dx.doi.org/10.1016/j.fishres.2013.04.014   
MENDOZA-DIAZ, F. & SERRANO, A. & CUERVO-LOPEZ, L. & LOPEZ-JIMENEZ, A. & GALINDO, J.A. & BASANEZ-MUNOZ, A. (2013): Concentracion de Hg, Pb, Cd, Cr y As en higado de Carcharhinus limbatus (Carcharhiniformes: Carcharhinidae) capturado en Veracruz, Mexico. [Concentration of Hg, Pb, Cd, Cr and As in liver Carcharhinus limbatus (Carcharhiniformes: Carcharhinidae) captured in Veracruz, Mexico]. Revista de Biologia Tropical, 61 (2): 821-828   
NADERI, M. & ZARE, P. & AZVAR, E. (2013): Length–weight relationships for five stingray species from the Persian Gulf. Journal of Applied Ichthyology, 29 (5): 1177–1178 Journal of Applied Ichthyology, 29 (5): 1177-1178  http://dx.doi.org/10.1111/jai.12201  
NYE, J.A. & GAMBLE, R.J. & LINK, J.S. (2013): The relative impact of warming and removing top predators on the Northeast US large marine biotic community. Ecological Modelling, 264 (Sp. Iss.): 157-168   http://dx.doi.org/10.1016/j.ecolmodel.2012.08.019
ORLOV, A.M. & COTTON, C.F. (2013): New data on rare deepwater North Atlantic skate Bathyraja pallida (Forster, 1967) (Arhynchobatidae, Rajiformes). Journal of Ichthyology, 53 (7): 465-477   http://dx.doi.org/10.1134/S0032945213040048  
PAPASTAMATIOU, Y.P. & MEYER, C.G. & CARVALHO, F. & DALE, J. & HUTCHINSON, M. & HOLLAND, K. (2013): Telemetry and random walk models reveal complex patterns of partial migration in a large marine predator. Ecology, in press   http://dx.doi.org/10.1890/12-2014.1  
POLO-SILVA, C. (2013): Ontogenia Alimentaria del Tiburón Azul Prionace glauca (LINNAEUS, 1758) a Partir de Análisis Isotópicos en Tejidos Diferentes. Thesis, Posgrado en Ciencias del Mar y Limnología. Universidad Nacional Autónoma de México (UNAM)   
POULAKIS, G.R. (2013): Reproductive Biology of the Cownose Ray in the Charlotte Harbor Estuarine System, Florida. Marine and Coastal Fisheries: Dynamics, Management, and Ecosystem Science, 5 (1): 159-173  http://dx.doi.org/10.1080/19425120.2013.795509   
PROHASKA, B.K. & TSANG, P.C.W. & DRIGGERS, W.B. & HOFFMAYER, E.R. & SULIKOWSKI, J.A. (2013): Development of a Nonlethal and Minimally Invasive Protocol to Study Elasmobranch Reproduction. Marine and Coastal Fisheries: Dynamics, Management, and Ecosystem Science, 5 (1): 181-188  http://dx.doi.org/10.1080/19425120.2013.788590  
QUATTRO, J.M. & DRIGGERS, W.B. & GRADY, J.M. & ULRICH, G.F. & ROBERTS, M.A. (2013): Sphyrna gilberti sp. nov., a new hammerhead shark (Carcharhiniformes, Sphyrnidae) from the western Atlantic Ocean. Zootaxa, 3702 (2): 159-178   http://dx.doi.org/10.11646/zootaxa.3702.2.5   
RAMIREZ-AMARO, S.R. & CARTAMIL, D. & GALVAN-MAGAÑA, F. & GONZALEZ-BARBA, G. & GRAHAM, J.B. & CARRERA-FERNANDEZ, M. & ESCOBAR-SANCHEZ, O. & SOSA-NISHIZAKI, O. & ROCHIN-ALAMILLO, A. (2013): The artisanal elasmobranch fishery of the Pacific coast of Baja California Sur, Mexico, management implications. Scienta Marina, 77 (3): 473-487    
RAMÍREZ-MACÍAS, D. (2013): Genética del tiburón ballena y estimación de abundancia en México. Publicia, ISBN-10: 3639551451, ISBN-13: 978-3639551457: 156pp   
ROMINE, J.G. & MUSICK, J.A. & JOHNSON, R.A. (2013): Compensatory Growth of the Sandbar Shark in the Western North Atlantic Including the Gulf of Mexico. Marine and Coastal Fisheries: Dynamics, Management, and Ecosystem Science, 5 (1): 189-199   http://dx.doi.org/10.1080/19425120.2013.793631   
RUPPERT, J.L.W. & TRAVERS, M.J. & SMITH, L.L. & FORTIN, M.-J. & MEEKAN, M.G. (2013): Caught in the Middle: Combined Impacts of Shark Removal and Coral Loss on the Fish Communities of Coral Reefs. PLoS ONE, 8 (9): e74648  http://dx.doi.org/10.1371/journal.pone.0074648  
TAYLOR, I.G. & GERTSEVA, V. & MATSON, S.E. (2013): Spine-based ageing methods in the spiny dogfish shark, Squalus suckleyi: How they measure up. Fisheries Research, 147: 83-92   http://dx.doi.org/10.1016/j.fishres.2013.04.011   
TRIVEDI, J. & VACHHRAJANI, K.D. (2013): First record of the marbled electric ray, Torpedo sinuspersici off Gujarat, north-west coast of India. Marine Biodiversity Records, 6: e94   http://dx.doi.org/10.1017/S1755267213000705   
WANG, Y. & XU, S. & SU, Y. & YE, B. & HUA, Z. (2013): Molecular characterization and expression analysis of complement component C9 gene in the whitespotted bambooshark, Chiloscyllium plagiosum. Fish & Shellfish Immunology, 35 (2): 599-606  http://dx.doi.org/10.1016/j.fsi.2013.04.042  
WILLIAMS, L.J. & CAMPBELL, M.D. & TSANG, P.C.W. & SULIKOWSKI, J.A. (2013): Using estradiol and progesterone concentrations to assess individual variability in the reproductive cyclicity of captive female little skates, Leucoraja erinacea, from the western Gulf of Maine. Fish Physiology and Biochemistry, 39 (5): 1089-1099  http://dx.doi.org/10.1007/s10695-012-9766-2  
  
 

Parasitology:

BORUCINSKA, J.D. & ADAMS, D.H. (2013): Parasitic metritis and oophoritis associated with nematode larvae in an Atlantic sharpnose shark, Rhizoprionodon terraenovae (Richardson), collected in the western Atlantic off Florida. Journal of Fish Diseases, 36 (9): 811-817   http://dx.doi.org/10.1111/jfd.12085
IVANOV, V.A. & CAIRA, J.N. (2013): Two new species of Halysioncum Caira, Marques, Jensen, Kuchta et Ivanov, 2013 (Cestoda, Diphyllidea) from Indo-Pacific rays of the genus Aetomylaeus Garman (Myliobatiformes, Myliobatidae). Folia Parasitologica, 60 (4): 321-330 
MÉNDEZ, O. & GONZÁLEZ, M.A.D. (2013): Cestodes of the bull shark Carcharhinus leucas in Chachalacas beach, Veracruz, Mexico. Neotropical Helminthology, 7 (1): 167 - 171 
ORÉLIS-RIBEIRO, R. & RUIZ, C.F. & CURRAN, S.S. & BULLARD, S.A. (2013):Blood flukes (Digenea: Aporocotylidae) of lamniforms: Redescription of Hyperandrotrema cetorhini from basking shark (Cetorhinus maximus) and description of a new congener from shortfin mako shark (Isurus oxyrinchus) off Alabama. Journal of Parasitology, 99 (5): in press   http://dx.doi.org/10.1645/12-125.1
PATELLA, R. & BULLARD, S.A. (2013): Hexabothriids of devil rays (Mobulidae): New genus and species from gill of Mobula hypostoma in the Gulf of Mexico and redescription of a congener from Mobula rochebrunei in the eastern Atlantic Ocean.Journal of Parasitology, 99 (5): in press   http://dx.doi.org/10.1645/12-153.1  
RUIZ, C.F. & BULLARD, S.A. (2013): Huffmanela markgracei sp. n. (Nematoda: Trichosomoididae) from buccal cavity of Atlantic sharpnose shark, Rhizoprionodon terraenovae, (Carcharhiniformes: Carcharhinidae) in the northwestern Gulf of Mexico off Texas. Folia Parasitologica, 60 (4): 353-358  
SCHAEFFNER, B.C. & BEVERIDGE, I. (2013): Prochristianella mattisi sp. n. (Trypanorhyncha: Eutetrarhynchidae) from the wedgenose skate, Dipturus whitleyi (Rajiformes: Rajidae), from Tasmania (Australia). Folia Parasitologica, 60 (3): 257-263  


Fossil:

ADNET, S. & CAPPETTA, H. & MORRISON, K. (2013): A Giant frilled shark from the Late Cretaceous of Western Canada. Abstract. In: SCHWARZ, C. & KRIWET, J. (editors): 6th International Meeting on Mesozoic Fishes - Diversification and Diversity Patterns, Vienna, Austria August 4th-10th, 2013: 5 
CARRILLO-BRICEÑO, J.D. (2013): Chondrichthyans from the Upper Cretaceous of Venezuela: Diversity and Palaeobiogeographic implications. Abstract. In: SCHWARZ, C. & KRIWET, J. (editors): 6th International Meeting on Mesozoic Fishes - Diversification and Diversity Patterns, Vienna, Austria August 4th-10th, 2013: 13 
CLAESON, K.M. & UNDERWOOD, C.J. & WARD, D.J. (2013): †Tingitanius tenuimandibulus, a new platyrhinid batoid from the Turonian (Cretaceous) of Morocco and the cretaceous radiation of the Platyrhinidae. Journal of Vertebrate Paleontology, 33 (5): 1019-1036   http://dx.doi.org/10.1080/02724634.2013.767266
COOK, T.D. & SIVERSON, M. & NEWBREY, M.G. & WILSON, M.V.H. (2013):Ontogenetic variation in the dentition of a new anacoracid shark from the Haycock Marl (Latest Cenomanian) of Western Australia. Abstract. In: SCHWARZ, C. & KRIWET, J. (editors): 6th International Meeting on Mesozoic Fishes - Diversification and Diversity Patterns, Vienna, Austria August 4th-10th, 2013: 16 
CUNY, G. & LIARD, R. & DEESRI, U. & LIARD, T. & KHAMHA, S.& SUTEETHORN, V. (2013): Freshwater hybodont sharks from the Late Jurassic - Early Cretaceous of Northeastern Thailand: stratigraphical and palaeobiogeographical implications. Abstract. In: SCHWARZ, C. & KRIWET, J. (editors): 6th International Meeting on Mesozoic Fishes - Diversification and Diversity Patterns, Vienna, Austria August 4th-10th, 2013: 18 
ENAULT, S. (2013): New look on the adaptive radiation of mesozoic batoids, inferences from teeth microstructure. Abstract. In: SCHWARZ, C. & KRIWET, J. (editors): 6th International Meeting on Mesozoic Fishes - Diversification and Diversity Patterns, Vienna, Austria August 4th-10th, 2013: 23
ENAULT, S. & CAPPETTA, H. & ADNET, S. (2013): Simplification of the enameloid microstructure of large stingrays (Chondrichthyes: Myliobatiformes): a functional approach. Zoological Journal of the Linnean Society, 169 (1): 144-155  http://dx.doi.org/10.1111/zoj.12059    
GOTO, M. (2013): Tooth evolution and adaptation of elasmobranchs. Abstract. In: SCHWARZ, C. & KRIWET, J. (editors): 6th International Meeting on Mesozoic Fishes - Diversification and Diversity Patterns, Vienna, Austria August 4th-10th, 2013: 28
GREGOROVA, R. (2013): Sphenodus Agassiz (Neoselachii, Synechodontiformes, Oxfordian) from the Hady Hill in Brno, Czech Republic - A preliminary Report. Abstract.In: SCHWARZ, C. & KRIWET, J. (editors): 6th International Meeting on Mesozoic Fishes - Diversification and Diversity Patterns, Vienna, Austria August 4th-10th, 2013: 32     
GUINOT, G. & CAPPETTA, H. & ADNET, S. (2013): A rare Valanginian elasmobranch assemblage and its bearing on Mesozoic chondrychthan diversity. Abstract. In: SCHWARZ, C. & KRIWET, J. (editors): 6th International Meeting on Mesozoic Fishes - Diversification and Diversity Patterns, Vienna, Austria August 4th-10th, 2013: 34     
GUINOT, G. & UNDERWOOD, C.J. & CAPPETTA, H. & WARD, D.J. (2013): Errata: Sharks (Elasmobranchii: Euselachii) from the Late Cretaceous of France and the UK (vol 11, pg 589, 2013). Journal of Systematic Palaeontology, 11 (6): 743  http://dx.doi.org/10.1080/14772019.2013.807703    
IVANOV, A. (2013): Phoebodont-like teeth from the Triassic of Europe. Abstract. In: SCHWARZ, C. & KRIWET, J. (editors): 6th International Meeting on Mesozoic Fishes - Diversification and Diversity Patterns, Vienna, Austria August 4th-10th, 2013: 35     
KOOT, M.B. & ROMANO, C. & TWITCHETT, R.J. & CUNY, G. & HART, M.B. (2013): Diversity dynamics in the global Permian-Triassic chondrichthyan fauna: taxonomic diversity, palaeoecology and distribution. Abstract. In: SCHWARZ, C. & KRIWET, J. (editors): 6th International Meeting on Mesozoic Fishes - Diversification and Diversity Patterns, Vienna, Austria August 4th-10th, 2013: 41     
KRIWET, J. & KLUG, S. (2013): Dental patterns of basal Hexanchoid sharks (Elasmobranchii, Hexanchiformes). In: SCHWARZ, C. & KRIWET, J. (editors): 6th International Meeting on Mesozoic Fishes - Diversification and Diversity Patterns, Vienna, Austria August 4th-10th, 2013: 42     
LAURINI, C.R. & DE CARVALHO, M.R. (2013): A new look at Rhinobatiformes (Chondrichthyes) from Araripe, Lower Cretaceous of NE Brazil. Abstract. In: SCHWARZ, C. & KRIWET, J. (editors): 6th International Meeting on Mesozoic Fishes – Diversification and Diversity Patterns, Vienna, Austria August 4th-10th, 2013: 45     
NEWBREY, M.G. & COOK, T.C. & BRINKMAN, D.B. & NEUMAN, A.G. & SANCHEZ, R. & TANKE, D. (2013): A partial orectolobiform skeleton from the Freshwater Scollard Formation (Maastrichtian), Alberta, Canada. Abstract. In: SCHWARZ, C. & KRIWET, J. (editors): 6th International Meeting on Mesozoic Fishes – Diversification and Diversity Patterns, Vienna, Austria August 4th-10th, 2013: 53     
PFEIL, F.H. (2013): Two well preserved Upper Cretaceous sharks from Lebanon … and many questions. Abstract. In: SCHWARZ, C. & KRIWET, J. (editors): 6th International Meeting on Mesozoic Fishes – Diversification and Diversity Patterns, Vienna, Austria August 4th-10th, 2013: 55     
PIMIENTO, C. & GONZÁLEZ-BARBA, G. & EHRET, D.J. & HENDY, A.J.W. & MACFADDEN, B.J. & JARAMILLO, C. (2013): Sharks and Rays (Chondrichthyes, Elasmobranchii) from the Late Miocene Gatun Formation of Panama. Journal of Paleontology, 87 (5): 755-774   http://dx.doi.org/10.1666/12-117    
POPOV, E. (2013): A revision of the chimaeroid genus Elasmodus Egerton, 1843 (Holocephali: Chimaeroidei). Abstract. In: SCHWARZ, C. & KRIWET, J. (editors): 6th International Meeting on Mesozoic Fishes – Diversification and Diversity Patterns, Vienna, Austria August 4th-10th, 2013: 57   
POPOV, E. & DUFFIN, C. & TISCHLINGER, H. & ATUCHIN, A. (2013):Reconstructions of the German Plattenkalk (Late Jurassic) chimaeroid fishes (Holocephali, Chimaeroidei). Abstract. In: SCHWARZ, C. & KRIWET, J. (editors): 6th International Meeting on Mesozoic Fishes – Diversification and Diversity Patterns, Vienna, Austria August 4th-10th, 2013: 56     
TOMITA, T. (2013): Intermittent swimming lifestyle in hybodontid sharks, reconstructed on the basis of gill arch and caudal fin morphologies. Abstract. In: SCHWARZ, C. & KRIWET, J. (editors): 6th International Meeting on Mesozoic Fishes – Diversification and Diversity Patterns, Vienna, Austria August 4th-10th, 2013: 66
WELTON, B.J. (2013): Cetorhinus cf. C. maximus (Gunnerus) (Lamniformes: Cetorhinidae), A Basking Shark from the Late Miocene Empire Formation, Coos Bay, Oregon. Bulletin of the Southern California Academy of Sciences, 112 (2):74-92  http://dx.doi.org/10.3160/0038-3872-112.2.74    

 

MISCELLANEOUS:

source: http://www.sciencedaily.com/releases/2013/09/130905134024.htm 


Female Tiger Sharks Migrate from Northwestern to Main Hawaiian Islands During Fall Pupping Season

Sep. 5, 2013 — A quarter of the mature female tiger sharks plying the waters around the remote coral atolls of the Northwestern Hawaiian Islands decamp for the populated Main Hawaiian Islands in the late summer and fall, swimming as far as 2,500 kilometers (1,500 miles) according to new research from University of Florida and the University of Hawaii. Their report is scheduled for publication in the November 2013 issue of Ecological Society of America's journal Ecology. The authors' manuscript is available as a preprint.

"When we think of animal migrations, we tend to think of all individuals in a populations getting up and leaving at the same time, but it's not as simple as that," said first author Yannis Papastamatiou of the University of Florida. "Some are resident and some are transient."

Among all migrating animals, from birds to elk to 15-ft ocean predators, some portion of the population remains behind when the rest leave on their seasonal journeys. Animals have choice. On what factors does choice depend? The answers are important to conservation efforts and the management of our own interactions with the animals as they pass around, over, and through human communities.

Tiger sharks are present throughout the islands at all times of year. The female sharks' migration from the Northwestern Hawaiian Islands dovetails with the tiger shark birth season in September to early November -- and with the months of highest shark bite risk. Though rare, shark bites have historically been most frequent from October to December. Traditional Hawaiian knowledge also warns of danger during the fall months.

"Both the timing of this migration and tiger shark pupping season coincide with Hawaiian oral traditions suggesting that late summer and fall, when the wiliwili tree blooms, are a period of increased risk of shark bites," said co-author Carl Meyer of the University of Hawaii.

Papastamatiou and Meyer urge people not to leap to the conclusion that this movement of female sharks is directly related to recent shark bites around Maui, Oahu, and the Big Island. Many factors might influence shark behavior in ways that would lead to more frequent encounters with people, Papastamatiou said. Scientists have almost no data on the attributes or particular behaviors of tiger sharks that bite people because bloody conflicts with humanity, though dramatic, are rare.

Papastamatiou thinks there is a more likely connection to pupping, with female sharks swimming down to preferred nursery sites in the Main Hawaiian Islands. The Main Hawaiian Islands may offer different foods, protection from ocean waves, or some other, unknown factor.

Papastamatiou is careful to distinguish between what he knows and what he can only hypothesize based on the patterns of shark location data and shark natural history. He knows that one quarter of the mature females are moving to the main isles at the time when pupping is known to occur. He knows tiger shark females mostly likely pup every three years, so only one third are pregnant in the Fall.

Discussions of tiger shark behavior and natural history are often laced with caveats because the sharks are rare and swim through very large home ranges. They are not easy to observe systematically.

Papastamatiou and colleagues tracked more than 100 tiger sharks over the course of 7 years by tagging each animal with a transmitter that emitted high frequency sound in a unique code. When the sharks swam within range of one of 143 underwater "listening stations" arrayed throughout the islands and atolls of the Hawaiian Archipelago, the station made a record of time, date, and the identity of the shark. The tags last for a minimum of 3 years.

The researchers caught only glimpses of each animal. For months between those glimpses, the sharks' movements and behavior remained mysterious. "They could leave Hawaii altogether, and we wouldn't know," said Papastamatiou. Like many good studies, their results offered more new questions than answers. But the research team could detect a few patterns.

"One that stands out: although sharks show preference for certain islands, they don't stay resident in specific bays for long periods," said Papastamatiou. "It debunks the old idea of territoriality."

This research and other studies like it have solidly overturned mid-twentieth century ideas that tiger sharks stick to chosen territories in specific coves and bays. The territoriality hypothesis led to culls during the 1960s and '70s under the belief that killing sharks in locations where people had been hurt meant killing theshark that had attacked them, eliminating a "problem" shark.

But Papastamatiou said his data show that tiger sharks don't hang around the same bit of coastline for more than a few weeks. With concerns acute in the wake of recent shark bites and the death of a German tourist, Hawaiians are anxious to dosomething to respond.

"The one thing I hope they don't do is try to initiate a cull as was done in the 60s and 70s. I don't think it works. There is no measurable reduction in attacks after a cull," said Papastamatiou.

Hawaii's Department of Land and Natural Resources commissioned a two-year, $186,000 study last year of tiger shark movements in the islands, headed by study co-author Carl Meyer. The study will begin this month.


Story Source:

The above story is based on materials provided byEcological Society of America.

Note: Materials may be edited for content and length. For further information, please contact the source cited above.

 

Journal Reference:

  1. Yannis Peter Papastamatiou, Carl Gustav Meyer, Felipe Carvalho, Jonathon Dale, Melanie Hutchinson, Kim Holland.Telemetry and random walk models reveal complex patterns of partial migration in a large marine predator.Ecology, 2013; : 130426120907004 DOI: 10.1890/12-2014.1
     

Tiger shark. (Credit: © Andrew Reid / Fotolia)
 

source: http://www.aims.gov.au/de/latest-news/-/asset_publisher/MlU7/content/sharks-increase-reef-resilience


Sharks increase reef resilience

 

Sharks increase reef resilience - image
AIMS researchers conduct monitoring surveys at Scott Reef in WA

Healthy shark populations may aid the recovery of coral reefs whose futures are threatened throughout the globe, according to a new study from the Australian Institute of Marine Science (AIMS).

The link has been found by long-term monitoring of reefs off Australia's northwest coast, and showed that where shark numbers were lower due to fishing, herbivores – important fishes in promoting reef health – were also significantly lower in number.

"At first glance the result might seem strange", says Dr Mark Meekan, Principal Researcher at AIMS and co-author of the publication that appears today in the scientific journal, PLOS ONE.

"However, our analysis suggests that where shark numbers are reduced we see a fundamental change in the structure of food chains on reefs. We see increasing numbers of mid-level predators – such as snappers – and a reduction in the numbers of herbivores – such as parrotfishes. The parrotfishes are very important because they eat the algae that would otherwise overwhelm young corals on reefs recovering from natural disturbances," he adds.

The study comes at an opportune time in the life of coral reefs, which are facing a number of pressures both from direct human-activity, such as over-fishing, and from climate change, as explained by lead author, Dr Jonathan Ruppert, of the University of Toronto.

According to Dr Ruppert: "The reefs we studied are about 300 kilometres off the coast of northwest Australia and the only human impacts are Indonesian fishers who primarily target sharks, a practice stretching back several centuries, which continues under an Australian-Indonesian memorandum of understanding. These reefs provided us with a unique opportunity to isolate the impact of over-fishing of sharks on reef resilience, and assess that impact in the broader context of climate change pressures threatening coral reefs."

Dr Meekan adds: "On reefs where sharks are fished we found much lower numbers of herbivorous – algae eating – fishes, providing evidence that over-fishing sharks can have detrimental knock-on effects at least for some species further down the food chain. With many of the changes from a warming climate already locked in, there may be little we can do to prevent increased frequency of disturbances on coral reefs in the near future."

"However, this is not case with the loss of reef sharks," he says.

"Tracking studies show that in many cases individual reef sharks are closely attached to certain coral reefs, so even relatively small marine protected areas could be an effective way to protect the top-level predators, which may ultimately mean that coral reefs are better able to recover from coral bleaching or large cyclones. This makes the declines that are occurring in reef sharks due to overfishing throughout the world of great concern, because our study shows that a healthy reef means healthy populations of sharks," Meekan concludes. 

Title of paper:  Caught in the middle: combined impacts of shark removal and coral loss on the fish communities of coral reefs.

Authors:  Jonathan Ruppert, Michael Travers, Luke Smith, Marie-Josée Fortin and Mark Meekan.

Weblink: http://dx.plos.org/10.1371/journal.pone.0074648

Media contact:

Author: Dr Mark Meekan, Principal Research Scientist, AIMS (Perth Office), mobile: + 61 (0) 429 10 1812, phone + 61 (0)8 636 94039, m.meekan@aims.gov.au, Skype name: mark_meekan

AIMS Media Contact: Georgina Kenyon, +61 (0)7 4753 4265, g.kenyon@aims.gov.au