NEWSLETTER 06/2013 17. May 2013
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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 |
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New images at shark-references:
Many thanks to the following persons for the permission to use their images:
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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 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/ |
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New described species/Taxonomic News:
Recent:
SATO, K. & STEWART, A.L. & NAKAYA, K. (2013): Apristurus garricki sp. nov., a new deep-water catshark from the northern New Zealand waters (Carcharhiniformes: Scyliorhinidae). Marine Biology Research, 9 (8): 758-767
New species: Apristurus garricki
Abstract: A new deep-water catshark, Apristurus garricki sp. nov., is described from northern New Zealand waters. This species is a member of the longicephalus-group and has a conspicuously elongated prenarial snout and short duodenum and is morphologically similar to A. herklotsi from the western North Pacific and A. australis from Australian waters. A. garricki sp. nov. differs from A. australis and A. herklotsi by possessing large dermal denticles on the dorsal side of the body, and higher counts of monospondylous vertebrae and spiral valves. In addition, this species can be distinguished from A. herklotsi by its larger size at maturation, a higher count of monospondylous vertebrae and spiral valves, and distinct longitudinal striations on the surface of egg cases. It differs from A. australis by having fewer tooth rows on both jaws and the posterior position of the first dorsal-fin insertion being distinctly behind pelvic insertions. This species is currently only known from northern New Zealand waters, and is thought to be endemic to this region.
Parasites:
CUTMORE, S.C. & MILLER, T.L. & CURRAN, S.S. & BENNETT, M.B. & CRIBB, T.H. (2013): Phylogenetic relationships of the Gorgoderidae (Platyhelminthes: Trematoda), including the proposal of a new subfamily (Degeneriinae n. subfam.). Parasitology Research, in press
New familiy: Degeneriinae
Abstract: Phylogenetic analyses of a range of gorgoderid trematodes based on ITS2 and partial 28S rDNA data lead us to propose the Degeneriinae n. subfam. for the genus Degeneria in recognition of its phylogenetic isolation and distinctive morphology and biology. The current concepts of the subfamilies Anaporrhutinae and Gorgoderinae were supported. Within the Gorgoderinae, the large genus Phyllodistomum is shown to be paraphyletic relative to Pseudophyllodistomum and Xystretrum. Notably, the clade of marine Phyllodistomum does not form a clade with the other marine genus, Xystretrum. Distinct clades within the Gorgoderinae correspond variously to identity of first intermediate host, form of cercaria and their marine or freshwater habitat. We are not yet in a position to propose separate genera for these clades.
DIPPENAAR, S.M. & LEBEPE, M.C. (2013): Two new species of Pupulina van Beneden, 1892 (Copepoda: Siphonostomatoida: Caligidae) from mobulid rays off South Africa.Systematic Parasitology, 85 (1): 27-35
New species: Pupulina cliffi, Pupulina merira
Abstract: The caligid genus Pupulina van Beneden, 1892 currently has three accepted species. Two new species, Pupulina cliffi n. sp. and P. merira n. sp., are described from Mobula kuhlii (Muller & Henle) and M. eregoodootenkee (Bleeker) (Mobulidae) caught along the east coast of South Africa. Pupulina cliffi can be distinguished from all the other species by the absence of posterolateral processes on the genital complex, whereas P. merira has very short, rounded posterolateral processes on the genital complex compared to the three previously known species. Additionally, P. merira is the only species with the abdomen only about two-thirds the length of the genital complex and the caudal rami about the same length as the abdomen. A dichotomous key to distinguish the five species of Pupulina is provided.
RUHNKE, T.R. & WORKMAN, R.E. (2013): Two new species and a new phyllobothriid cestode genus from sharks of the genus Negaprion Whitley (Carcharhiniformes).Systematic Parasitology, 85 (1): 37-48
New genus: Alexandercestus
New species: Alexandercestus gibsoni, Alexandercestus manteri
Abstract: Alexandercestus n. g. (Cestoda: Tetraphyllidea) is erected for two cestode species found parasitising the two known species of lemon sharks (Carcharhiniformes: Negaprion spp.). This new genus differs from all other phyllobothriid genera except for Hemipristicola Cutmore, Theiss, Bennett & Cribb, 2011, Marsupiobothrium Yamaguti, 1952, Nandocestus Reyda, 2008, Orectolobicestus Ruhnke, Caira & Carpenter 2006, Orygmatobothrium Diesing, 1863, Paraorygmatobothrium Ruhnke, 1994 and Phyllobothrium van Beneden, 1849 in possessing uniloculate bothridia with an apical sucker and neck scutes. Alexandercestus differs from Orectolobicestus and Nandocestus in lacking marginal loculi on the bothridia, from Paraorygmatobothrium in possessing uninterrupted vitelline follicles at the level of the ovary and from Phyllobothrium in being euapolytic as opposed to anapolytic and in lacking posteriorly bifid bothridia. The new genus lacks the central accessory bothridial organ seen in specimens of Orygmatobothrium, and lacks the central bothridial accessory sucker of specimens of Marsupiobothrium. Alexandercestus spp. compare most favourably with specimens of Hemipristicola, especially with respect to aspects of proglottid morphology, but differ in possessing aristate gladiate spinitriches rather than serrate gladiate spinitriches on the proximal bothridial surface. In addition, the bothridia of Alexandercestus spp. are comparatively more fleshy and foliose than those in specimens of Hemipristicola. Two new species of Alexandercestus n. g. are described, Alexandercestus gibsoni n. sp. from Negaprion acutidens, collected from off northern Australia and the Marshall Islands, and Alexandercestus manteri n. sp. from N. brevirostris, collected off the islands of Bimini and the Florida Keys. The two new species differ in total length and vitelline follicle distribution. Bayesian inference and parsimony analysis of the D1-D3 region of the large nuclear ribosomal DNA of 17 published and seven novel sequences placed A. gibsoni as the sister taxon to a clade containing Hemipristicola gunterae Cutmore, Theiss, Bennett & Cribb, 2011 and species of Paraorygmatobothrium. This result supports the erection of Alexandercestus as a genus separate from Hemipristicola and Paraorygmatobothrium. At the present time, species of Alexandercestus are known only from hosts of the carcharhinid genus Negaprion Whitley; examination of extensive survey data suggests this may be the extent of the host distribution of this genus.
SCHAEFFNER, B.C. & BEVERIDGE, I. (2013): Poecilorhynchus perplexus n. g., n. sp. (Trypanorhyncha: Eutetrarhynchidae) from the brownbanded bambooshark, Chiloscyllium punctatum Müller & Henle, from Australia. Systematic Parasitology, 85 (1): 1-9
New genus: Poecilorhynchus
New species: Poecilorhynchus perplexus
Abstract: A new genus of trypanorhynch cestodes is described from the brownbanded bambooshark, Chiloscyllium punctatum Muller & Henle (Hemiscylliidae) from off Nickol Bay, Western Australia. Poecilorhynchus perplexus n. g., n. sp. is placed in the Eutetrarhynchidae Guiart, 1927 because it is characterised by an elongate, acraspedote scolex with two oval bothria, the absence of bothrial pits, elongate bulbs, the presence of gland-cells within the bulbs and prebulbar organs, retractor muscles inserting at the base of each bulb and an acraspedote strobila. It can be distinguished from all other genera in this family by its possession of a poeciloacanthous typical armature, with a chainette composed of two longitudinal files of uncinate hooks on the external tentacular surface.
Fossil:
PINHEIRO, F.L. & DE FIGUEIREDO, A.E.Q. & DENTZIEN-DIAS, P.C. & FORTIER, D.C. & SCHULTZ, C.L. & VIANA, M.S.S. (2013): Planohybodus marki sp nov., a new fresh-water hybodontid shark from the Early Cretaceous of northeastern Brazil Cretaceous Research, 41: 210-216
New species: Planohybodus marki
Abstract: A new species of hybodontid shark is described for the Lower Cretaceous of Brazil. The type specimen is derived from pre-Aptian strata of Malhada Vermelha Formation, Lima Campos Basin (Ceara State, northeastern Brazil), with referred material from the Missao Velha Formation of Araripe Basin, northeastern Brazil. The new taxon differs from other Planohybodus species by the presence of a stronger tooth ornamentation characterized by simple, usually non-branching cristae that nearly reach the apex of the main cusp as well as distinctly divergent lateral cusplets. In addition, certain North-American specimens formerly attributed to Hybodus are identified as Planohybodus. The new species presented herein, in addition to the North-American remains, represents an important contribution to the knowledge of the distribution of Planohybodus, expanding the geographic range of the genus to South and North America in the Late Jurassic and Early Cretaceous.
REES, J. & CUNY, G. & POUECH, J. & MAZIN, J.-M. (2013): Non-marine selachians from the basal Cretaceous of Charente, SW France. Cretaceous Research, in press
New species: Parvodus celsucuspus
Abstract: A gypsum quarry at Cherves-de-Cognac in south-western France exposes a large section of Berriasian (basal Cretaceous) sediments deposited in a lagoonal environment. The sediments have yielded rich vertebrate faunas, but only two species of selachians are present; the lonchidiid hybodont Parvodus celsucuspus sp. nov. and the batoid Belemnobatis variabilis. The composition of the fauna, including only a single, seemingly endemic, hybodont species from a time when hybodont faunas are relatively well investigated in Europe, indicate that small hybodonts were not able to migrate longer distances. The recorded batoid species also occurs in southern England, demonstrating that these batoids were primarily marine fishes that regularly explored areas with reduced salinity.
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New Paper
Recent Papers:
BARNETT, L.A.K. & WINTON, M.V. & AINSLEY, S.M. & CAILLIET, G.M. & EBERT, D.A. (2013): Comparative Demography of Skates: Life-History Correlates of Productivity and Implications for Management. PLoS ONE, 8 (5): e65000 http://dx.doi.org/10.1371/journal.pone.0065000
BECKMANN, C.L. & MITCHELL, J.G. & SEURONT, L. & STONE, D.A.J. & HUVENEERS, C. (2013): Erratum: Experimental Evaluation of Fatty Acid Profiles as a Technique to Determine Dietary Composition in Benthic Elasmobranchs (vol 86, pg 266, 2013).Physiological and Biochemical Zoology, 86 (3): 383 http://dx.doi.org/10.1086/670758
BHUMMAKASIKARA, T. & KONGRIT, C. & SIRIPUNKAW, C. & CHANSUE, N. & KHUDAMRONGSAWAT, J. (2013): Development of microsatellite DNA primers for the giant freshwater stingray, Himantura chaophraya (Batoidea: Dasyatidae) in Thailand, and cross-species amplification in other stingrays. Conservation Genetics Resources, 5 (2): 453-455 http://dx.doi.org/10.1007/s12686-012-9826-z
BLEVINS, E.L. & LAUDER, G.V. (2013): Swimming near the substrate: a simple robotic model of stingray locomotion. Bioinspiration & Biomimetics, 8 (1): 016005 http://dx.doi.org/10.1088/1748-3182/8/1/016005
BORNATOWSKI, H. & BRAGA, P.R. & SIMÕES VITULE, J.R. (2013): Shark Mislabeling Threatens Biodiversity. Science, 340: 929 http://dx.doi.org/10.1126/science.340.6135.923-a
BURKHOLDER, D.A. & HEITHAUS, M.R. & FOURQUREAN, J.W. & WIRSING, A. & DILL, L.M. (2013): Patterns of top-down control in a seagrass ecosystem: could a roving apex predator induce a behaviour-mediated trophic cascade? Journal of Animal Ecology, in press http://dx.doi.org/10.1111/1365-2656.12097
CISNEROS-MONTEMAYOR, A.M. &BARNES-MAUTHE, M. & AL-ABDULRAZZAK, D. & NAVARRO-HOLM, E. & SUMAILA, U.R. (2013): Global economic value of shark ecotourism: implications for conservation. Oryx, in press http://dx.doi.org/10.1017/S0030605312001718
CLUA, E. (2013): Features and motivation of a fatal attack by a juvenile white shark, Carcharodon carcharias, on a young male surfer in New Caledonia (South Pacific).Journal of Forensic and Legal Medicine, in press http://dx.doi.org/10.1016/j.jflm.2013.03.009
CLUA, E. & CHAUVET, C. & READ, T. & WERRY, J.M. & LEE, S.Y. (2013): Behavioural patterns of a Tiger Shark (Galeocerdo cuvier) feeding aggregation at a blue whale carcass in Prony Bay, New Caledonia. Marine and Freshwater Behaviour and Physiology, 46 (1): 1-20 http://dx.doi.org/10.1080/10236244.2013.773127
CROUCH, K. & SMITH, L.E. & WILLIAMS, R. & CAO, W. & LEE, M. & JENSEN, A. & DOOLEY, H. (2013): Humoral immune response of the small-spotted catshark, Scyliorhinus canicula. Fish and Shellfish Immunology, 34 (5): 1158-1169 http://dx.doi.org/10.1016/j.fsi.2013.01.025
CROUCH, K. & SMITH, L.E. & WILLIAMS, R. & CAO, W. & LEE, M. & JENSEN, A. & DOOLEY, H. (2013): Corrigendum to “Humoral immune response of the small-spotted catshark, Scyliorhinus canicula”. Fish and Shellfish Immunology, in press http://dx.doi.org/10.1016/j.fsi.2013.05.011
CURTIS, T.H. & PARKYN, D.C. & BURGESS, G.H. (2013): Use of Human-Altered Habitats by Bull Sharks in a Florida Nursery Area. Marine and Coastal Fisheries: Dynamics, Management, and Ecosystem Science, 5 (1): 28-38 http://dx.doi.org/10.1080/19425120.2012.756438
DA SILVA, C. & KERWATH, S.E. & ATTWOOD, C.G. & THORSTAD, E.B. & COWLEY, P.D. & ØKLAND, F. & WILKE, C.G. & NAESJE, T.F. (2013): Quantifying the degree of protection afforded by a no-take marine reserve on an exploited shark. African Journal of Marine Science, 35 (1): 57-66 http://dx.doi.org/10.2989/1814232X.2013.769911
DALY, R. & SMALE, M.J. (2013): Evaluation of an underwater biopsy probe for collecting tissue samples from bull sharks Carcharhinus leucas. African Journal of Marine Science, 35 (1): 129-132 http://dx.doi.org/10.2989/1814232X.2013.769910
DICKEN, M.L. & BOOTH, A.J. (2013): Surveys of white sharks (Carcharodon carcharias) off bathing beaches in Algoa Bay, South Africa. Marine and Freshwater Research, 64 (6): 530-539 http://dx.doi.org/10.1071/MF12336
GODARD, B.G. & MAZAN, S. (2013): Early patterning in a chondrichthyan model, the small spotted dogfish: towards the gnathostome ancestral state. Journal of Anatomy, 222 (1): 56-66 http://dx.doi.org/10.1111/j.1469-7580.2012.01552.x
GOTO, T. & SHIBA, Y. & SHIBAGAKI, K. & NAKAYA, K. (2013): Morphology and Ventilatory Function of Gills in the Carpet Shark Family Parascylliidae (Elasmobranchii, Orectolobiformes). Zoological Science, 30 (6): 461-468 http://dx.doi.org/10.2108/zsj.30.461
HEITHAUS, M.R. & VAUDO, J.J. & KREICKER, S. & LAYMAN, C.A. & KRÜTZEN, M. & BURKHOLDER, D.A. & GASTRICH, K. & BESSEY, C. & SARABIA, R. & CAMERON, K. & WIRSING, A. & THOMSON, J.A. & DUNPHY-DALY, M.M. (2013): Apparent resource partitioning and trophic structure of large-bodied marine predators in a relatively pristine seagrass ecosystem. Marine Ecology Progress Series, 481: 225-237 http://dx.doi.org/10.3354/meps10235
HENDON, J.M. & HOFFMAYER, E.R. & DRIGGERS, W.B. (2013): First record of a nurse shark, Ginglymostoma cirratum, within the Mississippi sound. Gulf and Caribbean Research, 25 (2): 137-139
JOLLY, K.A. & DA SILVA, C. & ATTWOOD, C.G. (2013): Age, growth and reproductive biology of the blue shark Prionace glauca in South African waters. African Journal of Marine Science, 35 (1): 99-109 http://dx.doi.org/10.2989/1814232X.2013.783233
KADRI, H. & MAROUANI, S. & BRADAI, M.N. & BOUAÏN, A. (2013): Age, growth and reproductive biology of the rough skate, Raja radula (Chondrichthyes: Rajidae), off the Gulf of Gabes (southern Tunisia, central Mediterranean). Marine and Freshwater Research, 64 (6): 540-548 http://dx.doi.org/10.1071/MF12218
LEVESQUE, J.C. (2013): Commercial Fishery Catch Characteristics and Population Assessment of the Shortfin Mako Shark (Isurus oxyrinchus) in the Western North Atlantic Ocean. Fisheries and Aquaculture Journal, 2013: FAJ-77
MCCLUSKY, L.M. (2013): The caspase-dependent apoptosis gradient in the testis of the blue shark, Prionace glauca. Reproduction, 145 (3): 297-310 http://dx.doi.org/10.1530/REP-12-0216
MENDOZA-DIAZ, F. & SERRANO, A. & CUERVO-LOPEZ, L. & LOPEZ-JIMENEZ, A. & GALINDO, J.A. & BASAÑEZ-MUÑOZ, A. (2013): Concentración de Hg, Pb, Cd, Cr y As en hígado de Carcharhinus limbatus (Carcharhiniformes: Carcharhinidae) capturado en Veracruz, México. Revista de Biología Tropical, 61 (2): 821-828
PARDO, S.A. & COOPER, A.B. & DULVY, N.K. (2013): Avoiding fishy growth curves.Methods in Ecology and Evolution, 4 (4): 353–360 http://dx.doi.org/10.1111/2041-210x.12020
QUETGLAS, A. & ORDINES, F. & HIDALGO, M. & MONSERRAT, S. & RUIZ, S. & AMORES, A. & MORANTA, J. & MASSUTI, E. (2013): Synchronous combined effects of fishing and climate within a demersal community. ICES Journal of Marine Science, 70 (2): 319-328 http://dx.doi.org/10.1093/icesjms/fss181
RODRIGUES, N. & CORREIA, J. & PINHO, R. & GRAÇA, J. & RODRIGUES, F. & HIROFUMI, M. (2013): Notes on the Husbandry and Long-Term Transportation of Bull Ray (Pteromylaeus bovinus) and Dolphinfish (Coryphaena hippurus and Coryphaena equiselis). Zoo Biology, 32 (2): 222-229 http://dx.doi.org/10.1002/zoo.21048
ROHNER, C.A. & PIERCE, S.J. & MARSHALL, A.D. & WEEKS, S.J. & BENNETT, M.B. & RICHARDSON, A. (2013): Trends in sightings and environmental influences on a coastal aggregation of manta rays and whale sharks. Marine Ecology Progress Series, 482: 153–168 http://dx.doi.org/10.3354/meps10290
ROWAT, D. & BROOKS, K.S. (2013): Corrigendum: A review of the biology, fisheries and conservation of the whale shark Rhincodon typus (vol 80, pg 1019, 2012) Journal of Fish Biology, 82 (5): 1769 http://dx.doi.org/10.1111/jfb.12134
RYGG, A.D. & COX, J.P.L. & ABEL, R. & WEBB, A.G. & SMITH, N.B. & CRAVEN, B.A. (2013): A Computational Study of the Hydrodynamics in the Nasal Region of a Hammerhead Shark (Sphyrna tudes): Implications for Olfaction. PLoS ONE, 8 (3): e59783 http://dx.doi.org/10.1371/journal.pone.0059783
SANTANDER-NETO, J. & LESSA, R. (2013): Hermaphroditic smalleyed roundray (Urotrygon microphthalmum) from north-eastern Brazil. Marine Biodiversity Records, 6: e60 http://dx.doi.org/10.1017/S1755267213000353
SATO, K. & STEWART, A.L. & NAKAYA, K. (2013): Apristurus garricki sp. nov., a new deep-water catshark from the northern New Zealand waters (Carcharhiniformes: Scyliorhinidae). Marine Biology Research, 9 (8): 758-767 http://dx.doi.org/10.1080/17451000.2013.765586
SEMBA, Y. & YOKAWA, K. & MATSUNAGA, H. & SHONO, H. (2013): Distribution and trend in abundance of the porbeagle (Lamna nasus) in the southern hemisphere. Marine and Freshwater Research, 64 (6): 518-529 http://dx.doi.org/10.1071/MF12272
TAYLOR, I.G. & GERTSEVA, V. & METHOT, R.D. & MAUNDER, M.N. (2013): A stock-recruitment relationship based on pre-recruit survival, illustrated with application to spiny dogfish shark. Fisheries Research, 142: 15-21 http://dx.doi.org/10.1016/j.fishres.2012.04.018
TECCHIO, S. & COLL, M. & CHRISTENSEN, V. & COMPANY, J.B. & RAMIREZ-LLODRA, E. & SARDA, F. (2013): Food web structure and vulnerability of a deep-sea ecosystem in the NW Mediterranean Sea. Deep Sea Research Part I Oceanographic Research Papers, 75: 1-15 http://dx.doi.org/10.1016/j.dsr.2013.01.003
TILLEY, A. & LOPEZ-ANGARITA, J. & TURNER, J.R. (2013): Effects of scale and habitat distribution on the movement of the southern stingray Dasyatis americana on a Caribbean atoll. Marine Ecology Progress Series, 482: 169-179 http://dx.doi.org/10.3354/meps10285
TOWN, C. & MARSHALL, A. & SETHASATHIEN, N. (2013): Manta Matcher: automated photographic identification of manta rays using keypoint features. Ecology and Evolution, in press http://dx.doi.org/10.1002/ece3.587
TOWNER, A.V. & WCISEL, M.A. & REISINGER, R.R. & EDWARDS, D. & JEWELL, O.J.D. (2013): Gauging the Threat: The First Population Estimate for White Sharks in South Africa Using Photo Identification and Automated Software. PLoS ONE, 8 (6): e66035 http://dx.doi.org/10.1371/journal.pone.0066035
WILSON, A.D.M. & CROFT, D.P. & KRAUSE, J. (2013): Social networks in elasmobranchs and teleost fishes. Fish and Fisheries, in press http://dx.doi.org/10.1111/faf.12046
Parasitology:
CUTMORE, S.C. & MILLER, T.L. & CURRAN, S.S. & BENNETT, M.B. & CRIBB, T.H. (2013): Phylogenetic relationships of the Gorgoderidae (Platyhelminthes: Trematoda), including the proposal of a new subfamily (Degeneriinae n. subfam.). Parasitology Research, in press http://dx.doi.org/ http://dx.doi.org/Parasitology Research, in press
DIPPENAAR, S.M. & LEBEPE, M.C. (2013): Two new species of Pupulina van Beneden, 1892 (Copepoda: Siphonostomatoida: Caligidae) from mobulid rays off South Africa.Systematic Parasitology, 85 (1): 27-35 http://dx.doi.org/ http://dx.doi.org/SystematicParasitology, 85 (1): 27-35
HENDERSON, A.C. & REEVE, A.J. & TANG, D. (2013): Parasitic copepods from some northern Indian Ocean elasmobranchs. Marine Biodiversity Records, 6: e44 http://dx.doi.org/ http://dx.doi.org/Marine Biodiversity Records, 6: e44
IZAWA, K. (2013): Redescription of adults and description of developmental stages of Trebius shiinoi Nagasawa, Tanaka & Benz, 1998 (Copepoda, Siphonostomatoida, Trebiidae) from the Japanese Angelshark, Squatina japonica Bleeker, 1858.Crustaceana, 86 (6): 739-766 http://dx.doi.org/ http://dx.doi.org/Crustaceana, 86 (6): 739-766
RUHNKE, T.R. & WORKMAN, R.E. (2013): Two new species and a new phyllobothriid cestode genus from sharks of the genus Negaprion Whitley (Carcharhiniformes).Systematic Parasitology, 85 (1): 37-48 http://dx.doi.org/ http://dx.doi.org/SystematicParasitology, 85 (1): 37-48
SCHAEFFNER, B.C. & BEVERIDGE, I. (2013): Poecilorhynchus perplexus n. g., n. sp. (Trypanorhyncha: Eutetrarhynchidae) from the brownbanded bambooshark, Chiloscyllium punctatum Müller & Henle, from Australia. Systematic Parasitology, 85 (1): 1-9 http://dx.doi.org/ http://dx.doi.org/Systematic Parasitology, 85 (1): 1-9
Fossil:
CARRILLO-BRICEÑO, J.D. & LUCAS. S.G. (2013): The first tooth set of Ptychodus atcoensis (Elasmobranchii: Ptychodontidae), from the Cretaceous of Venezuela. Swiss Journal of Palaeontology, 132 (1): 69-75 http://dx.doi.org/10.1007/s13358-013-0053-3
CIAMPAGLIO, C.N. & CICIMURRI, D.J. & EBERSOLE, J.A. & RUNYON, K.E. (2013): A note on Late Cretaceous fish taxa recovered from stream gravels at site agr-43 in Greene County, Alabama. Bulletin of the Alabama Museum of Natural History, 31 (1): 84-97
CLAYTON, A.A. & CIAMPAGLIO, C.N. & CICIMURRI, D.J. (2013): An inquiry into the stratigraphic occurrence of a Claibornian (Eocene) vertebrate fauna from Covington County, Alabama. Bulletin of the Alabama Museum of Natural History, 31 (2): 60-73
DICKERSON, A.A. & SHIMADA, K. & REILLY, B. & RIGSBY, C.K. (2013): New Data on the Late Cretaceous Cardabiodontid Lamniform Shark Based on an Associated Specimen from Kansas. Transactions of the Kansas Academy of Science, 115 (3-4): 125-133 http://dx.doi.org/10.1660/062.115.0305
DIEDRICH, C.G. (2013): Facies related phylostratigraphy of the benthic neoselachian Ptychodus from the Late Cretaceous (Cenomanian/Turonian) of the Pre-North Sea Basin of Europe. Cretaceous Research, 41: 17-30 http://dx.doi.org/10.1016/j.cretres.2012.10.007
ELLIOTT, D.R. & WHITENACK, L.B. (2013): A Cretaceous Shark Tooth in Glacial Debris of Middle Missouri. Transactions of the Kansas Academy of Science, 115 (3-4): 102-106 http://dx.doi.org/10.1660/062.115.0302
EVERHART, M.J. (2013): “The palate bones of a fish?” – The first specimen of Ptychodus mortoni (Chondrichthyes; Elasmobranchii) from Alabama. Bulletin of the Alabama Museum of Natural History, 31 (1): 98-104
GAGNAISON, C. (2013): Les assemblages de vertébrés dans deux sites paléontologiques du bassin miocène de Savigné-sur-Lathan/Noyant-sous-le-Lude: La Guimardière et Pelmer (Maine-et-Loire, France). [Clusters of vertebrates in two paleontological sites of the Savigné-sur-Lathan/Noyantsous-le-Lude Miocene Basin: La Guimardière and Pelmer (Maine-et-Loire, France)]. Geodiversitas, 35 (1): 67-103 http://dx.doi.org/10.5252/g2013n1a5
GALLARDO, C. & SHIMADA, K. & SCHUMACHER, B.A. (2013): A New Late Cretaceous Marine Vertebrate Assemblage from the Lincoln Limestone Member of the Greenhorn Limestone in Southeastern Colorado. Transactions of the Kansas Academy of Science, 115 (3-4): 107-116 http://dx.doi.org/10.1660/062.115.0303
GUINOT, G. (2013): Regional to global patterns in Late Cretaceous selachian (Chondrichthyes, Euselachii) diversity. Journal of Systematic Palaeontology, 33 (3): 521-531 http://dx.doi.org/10.1080/02724634.2013.740116
HAMM, S.A. & HARRELL, T.L. (2013): A note on the occurrence of Ptychodus polygyrus (Ptychodontidae) from the Late Cretaceous of Alabama, with comments on the stratigraphic and geographic distribution of the species. Bulletin of the Alabama Museum of Natural History, 31 (1): 105-113
IKEJIRI, T. & EBERSOLE, J.A. & BLEWITT, H.L. & EBERSOLE, S.M. (2013): An overview of Late Cretaceous vertebrates from Alabama. Bulletin of the Alabama Museum of Natural History, 31 (1): 46-66
JANSEN, K.R. & SHIMADA, K. & KIRKLAND, J.I. (2013): Fossil Fish Fauna from the Uppermost Graneros Shale (Upper Cretaceous: Middle Cenomanian) in Southeastern Nebraska. Transactions of the Kansas Academy of Science, 115 (3-4): 145-152 http://dx.doi.org/10.1660/062.115.0308
MAY, W.J. (2013): First Report of Coelacanth and Hybodont Remains from the Lower Permian Wellington Formation of Oklahoma. Transactions of the Kansas Academy of Science, 115 (3-4): 134-138 http://dx.doi.org/10.1660/062.115.0306
PINHEIRO, F.L. & DE FIGUEIREDO, A.E.Q. & DENTZIEN-DIAS, P.C. & FORTIER, D.C. & SCHULTZ, C.L. & VIANA, M.S.S. (2013): Planohybodus marki sp nov., a new fresh-water hybodontid shark from the Early Cretaceous of northeastern Brazil Cretaceous Research, 41: 210-216 http://dx.doi.org/10.1016/j.cretres.2012.12.005
REES, J. & CUNY, G. & POUECH, J. & MAZIN, J.-M. (2013): Non-marine selachians from the basal Cretaceous of Charente, SW France. Cretaceous Research, in press http://dx.doi.org/10.1016/j.cretres.2013.04.002
REINECKE, T. (2013): Zähne von Carcharoides catticus (PHILIPPI, 1846) (Elasmobranchii, Odontaspididae) aus Geschieben des „Holsteiner Gesteins", Vierlande Feinsande (regionale Vierlande-Stufe, Unteres Miozän) von Bad Malente, Schleswig-Holstein [Teeth of Carcharoides catticus (PHILIPPI, 1846) (Elasmobranchii, Odontaspididae) from Geschiebe of the „Holsteiner Gestein", Vierlande Feinsande (Regional Vierlande Stage, Early Miocene) at Bad Malente, Schleswig-Holstein, Germany]. Archiv für Geschiebekunde, 6 (7): 493-498, 2 Abb 1 Tab
SHIMADA, K. (2013): Chondrichthyan origin for the fossil record of the Tselfatiiform Osteichthyan fish, Thryptodus zitteli Loomis, from the Upper Cretaceous Mooreville Chalk of Alabama. Bulletin of the Alabama Museum of Natural History, 31 (1): 72-77
SØRENSEN, A.M. & SURLYK, F. & LINDGREN, J. (2013): Food resources and habitat selection of a diverse vertebrate fauna from the upper lower Campanian of the Kristianstad Basin, southern Sweden. Cretaceous Research, 42: 85–92 http://dx.doi.org/10.1016/j.cretres.2013.02.002 |
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Sharks Worth More in the Ocean Than On the Menu
May 30, 2013 — Sharks are worth more in the ocean than in a bowl of soup, according to researchers from the University of British Columbia.
A new study, published today in Oryx -- The International Journal of Conservation, shows that shark ecotourism currently generates more than US$314 million annually worldwide and is expected to more than double to US$780 million in the next 20 years.
In comparison, the landed value of global shark fisheries is currently US$630 million and has been in decline for the past decade. An estimated 38 million sharks were killed in 2009 to feed the global fin trade alone.
"The emerging shark tourism industry attracts nearly 600,000 shark watchers annually, directly supporting 10,000 jobs," says Andres Cisneros-Montemayor, a PhD candidate with UBC's Fisheries Economics Research Unit and lead author of the study. "It is abundantly clear that leaving sharks in the ocean is worth much more than putting them on the menu."
"Sharks are slow to mature and produce few offspring," says Rashid Sumaila, senior author and director of UBC's Fisheries Centre. "The protection of live sharks, especially through dedicated protected areas, can benefit a much wider economic spectrum while helping the species recover."
The research team from UBC, the University of Hawaii and Universidad Autónoma de Baja California Sur in Mexico examined shark fisheries and shark ecotourism data from 70 sites in 45 countries. Almost $124 million in tourism dollars were generated annually in the Caribbean from shark tourism, supporting more than 5,000 jobs. In Australia and New Zealand, 29,000 shark watchers help generate almost $40 million in tourism expenditure a year.
Journal Reference:
- Andrés M. Cisneros-Montemayor, Michele Barnes-Mauthe, Dalal Al-Abdulrazzak, Estrella Navarro-Holm, U. Rashid Sumaila. Global economic value of shark ecotourism: implications for conservation. Oryx, 2013; : 1 DOI:10.1017/S0030605312001718
A UBC study shows shark tourism currently generates more than US$314M annually and is expected to more than double in the next 20 years. (Credit: Shawn Heinrichs)
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source: http://www.thisiscornwall.co.uk/lower-temperatures-putting-basking-sharks/story-19111463-detail/story.html#ixzz2UeapDkWU
Are lower temperatures putting off basking sharks visiting us this year?
One of the most eagerly awaited visitors to the Westcountry shores may have been deterred by the long, chilly spring.
Scientists at the Marine Conservation Society (MCS) say they have barely had any sightings of basking sharks so far in 2013, in contrast to a bumper crop last year.
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Are lower temperatures putting off basking sharks visiting us this year?
Jean-Luc Solandt, the organisation's senior bio- diversity officer, said he believed it was because the water temperature is lower than usual for the time of year.
Despite the fact that the gentle giants of the sea can grow to the size of a double decker bus, they are still prone to feel the cold and even a few degrees can make a difference to their habits, he said.
"Divers are telling us that the water temperature is 10 or 11 degrees centigrade. But at this time of the year it should be nearer 13 degrees," said Dr Solandt.
"This means that the plankton, which is the basking sharks favourite food and the reason they come to our waters, are not blooming in the usual quantities so basking sharks are staying in warmer seas to feed."
Cornwall is an acknowledged hotspot for basking sharks and last year the MCS received reports of more than 170 who were spotted weaving lazily along the UK's coastline as they gathered food.
The Seaquest Basking Shark Project, which is run by Cornwall Wildlife Trust, records the creatures' movements and also revealed a healthy showing of the creatures with 28 reported in June alone.
However, so far this year the MCS has only gathered a single basking shark sighting along the whole of the coast of Cornwall, Devon, Dorset and Somerset. It was made on April 12 by a sailor in Falmouth Bay.
Dr Solandt urged lovers of the creatures not to despair, adding that despite the seemingly slow start to the basking shark spotting season, there was still every reason to expect to see them in the coming months. He said spotters should keep their eyes peeled for the tell tale signs and then report positive sightings.
The MCS says the three clear signs to look out for are the, large broad dorsal fin and sweeping tail fin breaking the surface, the snout often breaking the surface when feeding and, if up close, the wide circular, gaping mouth clearly visible when feeding.
The charity is working to map the movements of basking sharks to help scientists and conservationists discover more about their lives and ensure they continue to thrive in our waters.
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