NEWSLETTER 10/2019 14.10.2019
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Pollerspöck, J. & Straube, N. 2019, Bibliography database of living/fossil sharks, rays and chimaeras (Chondrichthyes: Elasmobranchii, Holocephali), www.shark-references.com, World Wide Web electronic publication, Version 2019 |
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NEWS/ OWN RESEARCH
New cooperation with Iris Feichtinger, Natural History Museum Vienna:
Meeting Abstract:
FEICHTINGER, I. & KRANNER, M. & ZEITLINGER, F. & POLLERSPÖCK, J. & HARZHAUSER, M. 2019 New data on the elasmobranch fauna of the Eferding Formation (Egerian, North Alpine Foreland Basin) of Austria. In: 25. Jahrestagung ÖPG Bad Vöslau (11.-13. 10. 2019)for reading the abstract, please use the link to reseach gate
New open access paper from Team Shark-references:
In addition to articulated, mostly formaldehyde-fixed and ethanol-preserved, taxidermy or anatomical specimens, sharks and rays are represented in scientific collections by numerous jaws and isolated teeth. These specimens often source from historical collections where existing informations about species, sex or geographic origin in many cases are scarce, incomplete or incorrect. The identification key for jaws and teeth presented herein focuses on squalomorph sharks, which comprise almost 34 % of all sharks with 179 species in 31 genera and 11 families. The key is essentially based on the following characters: vascularisation stage, labial apron, number of cusplets, distal heel, lingual ornamentation, cutting edge, and dentition kind. The key allows the identification to genus level. It is further supplemented by a comprehensive glossary of tooth morphological terms as well as an updated checklist of all currently described squalomorph sharks with indication of the distribution and the dental formula.
POLLERSPÖCK, J. & STRAUBE, N. 2019 An identification key to elasmobranch genera based on dental morphological characters Part A: Squalomorph sharks (Superorder Squalomorphii). Bulletin of Fish Biology, 18 (1/2): 77-105
free download via research gate
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NEW PARTNERS OF SHARK-REFERENCES
Would you like to become a shark-reference partner? Please contanct us per E-mail!
Partner in Google-Maps:
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New Images
Many thanks to the following people for providing images:
Frederik Mollen (Elasmobranch Research Belgium) for the images of Urobatis halleri (COOPER, 1863), ERB 1197, female, 18,0 DW, 32,4 TL, Central Eastern Pacific:
Many thanks to Jean-Francois LHOMME for some new images of teeth and jaws, e.g. Heptranchias perlo (BONNATERRE, 1788):
Sebastien Enault and Camille Auclair, Kraniata (https://www.kraniata.com/)for this amazing images of Isurus oxyrinchus RAFINESQUE, 1810:
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Missing papers:
Many thanks to all friends of shark-references, who sent us some missing papers last month!
Shark-References would kindly like to ask you for your contribution to this project.
At the moment we are looking for some of the following papers:
Extinct Chondrichthyes:
MATSUMOTO, H. (1936) Upper Miocene vertebrates from Kumanodô, Natori district, province of Rikuzen. Dobutsugaku Zasshi, 48: 475–480, 5 fig.
BELTAN, L. (1959) Sur la présence du genre Carcharodon Müller et Henle dans le Miocène de la Martinique (Petites Antilles francaises). C.R. Sommaire des Seances de la Societe Geologique de France, 6: 156–158
ZBYSZEWSKI, G. & FERREIRA, O. DA V. (1962) La faune Miocène de l’île de Santa Maria (Açores). Comunicações dos Serviços Geológicos de Portugal, 46: 247–289
MENESINI, E. (1967) I Pesci miocenici delle Arenarie di Ponsano. Atti della Società Toscana di Scienze Naturali, Serie A, 74 (1): 1–22.
CAPPETTA, H. (1969) Les gisements de vertébrés de la région montpelliéraine. 2. Gisements miocènes. Bulletin du Bureau de Recherches géologiques et minières, 2 (1): 19–30
ALVINERIE, J. & ANDREIEFF, P. & ANGLADA, R. & AUBERT, J. & CAPPETTA, H. & CARALP, M. & CARATINI, C. & CARBONNEL, G. & CATZIGRAS, F. & COURME-RAULT, M.-D. & CHATEAUNEUF, J.-J. & DEMARCQ, G. & DUCASSE, O. & FATTON, E. & GLAÇON, G. & LABRACHERIE, M. & LAURIAT, A. & LE CALVEZ, Y. & LORENZ, C. & MAGNE, J. & MARGEREL, J.-P. & POIGNANT, A. & PUJOL, C. & ROGER, J. & ROMAN, J. & BLONDEAU, A. & MULLER, C. (1973) A propos de la limite oligo-miocène: résultats préliminaires d'une recherche collective sur les gisements d'Escornébéou (Saint-Géours-de-Maremne, Landes, Aquitaine méridionale). Présence de Globigerinoides dans les faunes de l'Oligocène supérieur. Comptes rendus sommaires des séances de la Société géologique de France: 75–76
BALBINO, A.C. (1996) Sharks from the Middle and early Upper Miocene from Lisbon, Portugal. A check-list. Comunicações do Instituto Geológico e Mineiro, 82: 141–144
KOZLOV, V.A. (2001) (A new species of carcharhinid shark from the Lower Miocene sediments of Northern Aral region) «in russian». Materialy po Stratigrafii i Paleontologii Urala, 6: 92–95
BOYD, B.M. (2016) Fossil sharks and rays of Gainesville creeks; Alachua County, Florida: Hogtown group; (middle Miocene to lower Pliocene). Florida Paleontological Society, Special Publication
Extant Chondrichthyes:
DEVINCENZI, G.J. & TEAGUE, G.W. (1942) Ictiofauna del Rio Uruguay medio. Anales del Museo Nacional de Historia Natural de Montevideo, (Serie 2), 5 ( 4): 1–100 + index + i–viii, Pls. 1–6
KAMOHARA, T. (1943) Some unrecorded and two new fishes from Prov. Tosa, Japan. Bulletin of the Biogeographical Society of Japan, 13 (17): 125–137
DE BUEN, F. (1950) Contribuciones a la Ictiología. II. El tiburón vitamínico de la costa uruguaya Galeorhinus vitaminicus nov. sp., y algunas consideraciones generales sobre su biología. Publicaciones Cientificas, Servicio Oceanografico y de Pesca, Ministerio de Industrias y Trabajo, Montevideo No. 4: 153–162.
CADENAT, J. (1951) Initiations Africaines. III. Poissons de Mer du Sénégal. Institute Francais d'Afrique Noire. Initiations Africaines. III. Poissons de Mer du Sénégal.: 1–345
DE BUEN, F. (1952) El tiburón vitamínico de la costa Uruguaya, Galeorhinus vitaminicus nov. sp. y algunas consideraciones generales sobre su biologia. Rev. Fac.Hum.Cienc.Univ.Repúbl.Montevid., 7: 87–116
WEIBEZAHN, F.H. (1953) Una nueva especie de Scyliorhinus de Venezuela (Chondrichthyes - Elasmobranchii). Novedades cientificas. Serie zoológica. Museo de Historia Natural La Salle, 9: 1–7.
SMITH, J.L.B. (1958) The mystery killer, the new shark Carcharhinus vanrooyeni. Veld & Vlei, 3 (9): 12–14, 28.
SICCARDI, E. (1961) Cetorhinus en el Atlantico sur (Elasmobranchii: Cetorhinidae). Actas y trabajos del Primer Congreso Sudamericano de Zoologia, 4 (5): 251–263
CADENAT, J. (1963) Notes d'ichtyologie ouest-africaine. XXXIX. Notes sur les requins de la famille des Carchariidae et formes apparentées de l'Atlantique ouest-africain (avec la description d'une espèce nouvelle: Pseudocarcharias pelagicus, classée dans un sous-genre nouveau). Bulletin de l'Institut Français d'Afrique Noire (A), 25 (2): 526–537, 9 fig.
CASTEX, M.N. (1963) Una nueva especie de raya fluvial: Potamotrygon pauckei. Notas distintivas Boletín de la Academia Nacional de Ciencias (Córdoba), 43: 289–294
CADENAT, J. & MAUL, G.E. (1966) Note d'ichthyologie ouest-africaine. XLIII. Description d'une espèce nouvelle du genre Apristurus, A. maderensis. Bulletin de l'Institut Français d'Afrique Noire (A), 28 (2): 769–782
ABELLA, A. (1972) Halazgo de una nueva especie de Carcharinus en las costas de Rocha, Uruguay. Boletín de la Sociedad Zoológica del Uruguay, 2: 102–106
GUITART-MANDAY, D.J. (1972) Un nuevo género y especies de tiburón de la Familia Triakidae. Poeyana (Ser.A), 1972 (99): 1–4
GUBANOV, E.P. & SCHLEIB, N.A. (1980) Sharks of the Arabian Gulf. Kuwait Ministry of Public Works, Agracultural Department, Fisheries Division. Sharks of the Arabian Gulf.: 1–69
DOLGANOV, V.N. (1983) Rukovodstvo po opredeleniyu khryashchevykh ryb dal'nevostochnykh morei SSSR i sopredel'nykh vod. [Manual for identification of cartilaginous fishes of Far East seas of USSR and adjacent waters.] TINRO, Vladivostok. Rukovodstvo po opredeleniyu khryashchevykh ryb dal'nevostochnykh morei SSSR i sopredel'nykh vod.: 92 pp.
SHEN, S.-C. (1986) A new species of stingray Hexatrygon taiwanensis from Taiwan Strait. Journal of Taiwan Museum, 39 (1): 175–180
Please support www.shark-references.com and send missing papers (not listed papers or papers without the info-symbol) to juergen.pollerspoeck@shark-references.com or nicolas.straube@shark-references.com
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Upcoming Meetings:
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EEA Meeting 2019 in Rende
http://eulasmo.org/blog/eea-meeting-2019-in-rende/
The Dipartimento di Biologia, Ecologia e Scienze della Terra – University of Calabria (DIBEST), Gruppo Italiano Ricercatori Squali, Razze e Chimere (G.R.I.S.) and the Centro Studi Squali (C.S.S.) are excited to organize the 23rd European Elasmobranch Association Meeting, which will take place in Rende (Italy) from the 16th to the 18th of October 2019.
We aim at creating a great forum where scientists, conservationists, students and all those interested in elasmobranchs will have an opportunity to share the results of their most exciting research, to look for synergies and find new collaborations.
During the conference, four plenary lectures, scientific sessions (orals and posters) and various workshops will take place. The sessions will deal with diverse topics, from evolutionary biology to ethology, from morphology to physiology, ecology and conservation. The conference will also include the Annual General Meeting of the EEA, multiple social activities, and the opportunity of exciting field underwater excursions. English will be the official conference language.
Please come back in the coming weeks to find out all the details about registration and related activities on the meeting’s website at www.dibest.unical.it/eea2019 and on the Facebook page at https://www.facebook.com/eea2019meeting/.
Provisional key dates are:
Call for abstracts and opening of registrations: 15th February 2019
End of reduced registration fees: 15th May 2019
Deadline of abstract submission: 15th June 2019
Communication of acceptance: Before August 30th
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TAXONOMIC NEWS/ NEW SPECIES
Extant Chondrichthyes:
DOLGANOV, V.N. (2019): Squalus boretzi sp. n. (Squalidae), a New Squalid Shark Species from the Emperor Seamount Chain, Pacific Ocean [in Russian with English abstract]. Biology of the Sea, 45 (4): 279-285
New species: Squalus boretzi
Abstract: A deep-sea shark species, Squalus boretzi sp. n., has been described from the Emperor Seamount Chain. Its measurable traits, structure of neurocranium and claspers, number of abdominal and caudal vertebrae, teeth rows, intestinal spiral valve whorls, and biology, reported in the article, have been analyzed in 22 specimens with a body length of 357–952 mm. The differences between the new species and the other closely related members of the genus are discussed.
Extinct Chondrichthyes:
CASE, G.R. & COOK, T.D. & KIGHTLINGER, T. & BORODIN, P.D. (2019): Middle Campanian Euselachian Diversity of the Southern Region of the Atlantic Coastal Plain of North America. Vertebrate Anatomy Morphology Palaeontology, 7: 69–82
New species: Cantioscyllium clementsi
Abstract: Herein, a rich selachian assemblage from the middle Campanian Bladen Formation located near Elizabethtown, Bladen County, North Carolina, USA is described. This assemblage consists of 19 species from 18 genera, at least 14 families, and seven orders and introduces the new species Cantioscyllium clementsi sp. nov. The recovered six lamniforms and Squatina, Plicatoscyllium, and Igdabatis spp. had large cosmopolitan distributions, whereas the new ginglymostomatid species and remaining 10 hybodontid and batoid taxa were likely endemic to the waters of North America.
MARRAMÀ, G. & CARNEVALE, G. & GIUSBERTI, L. & NAYLOR, G.J.P. & KRIWET, J. (2019): A bizarre Eocene dasyatoid batomorph (Elasmobranchii, Myliobatiformes) from the Bolca Lagerstätte (Italy) reveals a new, extinct body plan for stingrays. Scientific Reports, 9: 14087
New genus: Lessiniabatis
New species: Lessiniabatis aenigmatica
Abstract: Lagerstätte (Italy) has provided new insights into the fish biodiversity of the western Tethys. The morphological analysis of three previously undescribed specimens from the Pesciara deposit of Bolca revealed the existence of a new stingray taxon, †Lessiniabatis aenigmatica gen. et sp. nov., which is unique among the myliobatiform batoids in having the following unique combination of characters: low number of vertebrae posterior to the pelvic girdle (65–68); thoracolumbar synarcual extending backward beyond the pelvic girdle; tail extremely short not protruding from the posterior edge of the pectoral disc; radials proximally fused to each other; pelvic girdle extremely small and strongly arched; dorsal and caudal fins absent; tail stings and cartilaginous tail rod absent; and teeth of dasyatoid morphology with smooth enameloid surface. The phylogenetic analysis suggests that †Lessiniabatis gen. nov. is deeply nested within the benthic stingrays (Dasyatoidea) representing the sister to all dasyatids and potamotrygonids. Its unique anatomy clearly reveals the existence of a new hitherto unknown body plan experimented by benthic stingrays, whose evolution can be possibly linked to the adaptive fish radiation in the aftermath of the end-Cretaceous extinction.
Parasites:
DEROUICHE, I. & NEIFAR, L. & GEY, D. & JUSTINE, J.-L- & TAZEROUTI, F. (2019): Holocephalocotyle monstrosae n. gen. n. sp. (Monogenea, Monocotylidae) from the olfactory rosette of the rabbit fish, Chimaera monstrosa (Holocephali, Chimaeridae) in deep waters off Algeria. Parasite, 26: 59
New genus: Holocephalocotyle
New species: Holocephalocotyle monstrosae
Abstract: Based on a molecular and morphological study, a new monocotylid genus, Holocephalocotyle n. gen. is proposed to accommodate Holocephalocotyle monstrosae n. sp., found on the olfactory rosette of the rabbit fish, Chimaera monstrosa Linnaeus (Chondrichthyes, Chimaeridae), from the Mediterranean Sea off Algeria. Identification of fish hosts was confirmed by molecular barcoding of the COI gene. A partial 28S rDNA sequence (D1–D2 domain) of Holocephalocotyle monstrosae was obtained; it was distinct from all known monocotylid sequences (p-distance: 15.5–23%). A phylogenetic tree constructed from available monocotylid sequences showed that Holocephalocotyle monstrosae was included, and basal, in a robust group including species of Merizocotyle, Mycteronastes and Empruthotrema, confirming that the species is a member of the Merizocotylinae. The new genus is unique among the Merizocotylinae in having a distinctive pattern of haptoral loculi with one central, five peripheral and seven “interperipheral loculi” partially inserted between peripheral loculi and a compartmentalised sclerotised male copulatory organ. The diagnosis of the Merizocotylinae is amended to include this new genus. The new genus represents the second monocotylid genus recorded from holocephalans.
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Latest Research Articles
Extant Chondrichthyes:
BARRETO, R. & BORNATOWSKI, H. & FIEDLER, F.N. & PONTALTI, M. & DA COSTA, K.J. & NASCIMENTO, C. & KOTAS, J.E. (2019) Macro-debris ingestion and entanglement by blue sharks (Prionace glauca Linnaeus, 1758) in the temperate South Atlantic Ocean. Marine Pollution Bulletin, 145: 214-218 https://dx.doi.org/10.1016/j.marpolbul.2019.05.025
BAUM, J.K. (2019) Fishing boats leave few safe havens for sharks. Nature, 572 (7770): 449-450 https://dx.doi.org/10.1038/d41586-019-02357-2
BECERRIL-GARCÍA, E.E. & GUTIÉRREZ-ORTIZ, M.A. & PRECIADO-GONZÁLEZ, P.A. & AYALA-BOCOS, A. (2019) Presence of Remora remora on Mobula birostris in Revillagigedo National Park, Mexico. Marine and Freshwater Research, in press https://dx.doi.org/10.1073/pnas.1902693116
BECKMANN DAHL, R. & SIGSGAARD, E.E. & MWANGI, G. & THOMSEN, P.F. & DALSGAARD JØRGENSEN, R. & DE OLIVEIRA TORQUATO, F. & OLSEN, L. & MØLLER, P.R. (2019) The Sandy Zebra Shark: A New Color Morph of the Zebra Shark Stegostoma tigrinum, with a Redescription of the Species and a Revision of Its Nomenclature. Copeia, 107 (3): 524-541 https://dx.doi.org/10.18435/vamp29345
BILECENOĞLU, M. (2019) First record of Aetomylaeus bovinus (Geoffroy St. Hilaire, 1817) (Elasmobranchii: Myliobatidae), from the Sea of Marmara. Journal of the Black Sea Mediterranean Environment, 25 (2): 182-187
BRAUN, C.D. & GAUBE, P. & SINCLAIR-TAYLOR, T.H. & SKOMAL, G.B. & THORROLD, S.R. (2019) Mesoscale eddies release pelagic sharks from thermal constraints to foraging in the ocean twilight zone. Proceedings of the National Academy of Sciences of the United States of America, 116 (35): 17187-17192 https://dx.doi.org/10.1080/08912963.2019.1666840
CAPAPÉ, C. & KASSAR, A. & REYNAUD, C. & HEMIDA, F. (2019) Atypical characteristics in blackmouth catshark, Galeus melastomus (Chondrichthyes: Scyliorhinidae) from the Algerian coast (southern Mediterranean Sea). Thalassia Salentina, 41: 23-32 https://dx.doi.org/10.1371/journal.pone.0222273
DOLGANOV, V.N. (2019) Squalus boretzi sp. n. (Squalidae), a New Squalid Shark Species from the Emperor Seamount Chain, Pacific Ocean [in Russian with English abstract]. Biology of the Sea, 45 (4): 279-285 https://dx.doi.org/10.1186/s40317-019-0174-6
DRIGGERS, W.B. & HANNAN, K.M. (2019) Efficacy of 2 common bait types in reducing bycatch of coastal sharks on bottom longline gear in the absence of choice. Fishery Bulletin, 117 (3): 65-71 https://dx.doi.org/10.7755/FB.117.3.6
DUTTON, J. & VENUTI, V.M. (2019) Comparison of Maternal and Embryonic Trace Element Concentrations in Common Thresher Shark (Alopias vulpinus) Muscle Tissue. Bulletin of Environmental Contamination and Toxicology, 103 (3): 380-384 https://dx.doi.org/10.1007/s00128-019-02667-1
FRANCOIS, P. & SIDONIE, C. & CAROLINE, C. & JEAN-MARC, G. (2019) The effect of hook type and trailing gear on hook shedding and fate of pelagic stingray (Pteroplatytrygon violacea): New insights to develop effective mitigation approaches. Marine Policy, 107: Unsp 103594 https://dx.doi.org/10.1016/j.marpol.2019.103594
HAQUE, A.B. & DAS, S.A. & BISWAS, A.R. (2019) DNA analysis of elasmobranch products originating from Bangladesh reveals unregulated elasmobranch fishery and trade on species of global conservation concern. PLoS ONE, 14 (9): e0222273 https://dx.doi.org/10.1371/journal.pone.0222754
IQBAL, M. & NURNAWATI, E. & SETIAWAN, A. & DAHLAN, Z. & YUSTIAN, I. (2019) First photographic inland records of bull shark Carcharhinus leucas (Carcharhiniformes: Carcharhinidae) in Sumatran waters, Indonesia. Ecologica Montenegrina, 22: 171-176
KABASAKAL, H. & BAYRı, E. (2019) Notes on the occurrence of smalltooth sandtiger shark, Odontaspis ferox (Lamniformes: Odontaspididae) from Antalya Bay, eastern Mediterranean, Turkey. Journal of the Black Sea Mediterranean Environment, 25 (2): 166-171
KOUAME, K.Y.N. & KONAN, K.J. & OUATTARA, N.I. & KONE, T. (2019) Aspects of the reproductive biology of the blue shark Prionace glauca (Linnaeus, 1758) in the coastal waters of Ivory Coast, West Africa. Journal of the Marine Biological Association of the United Kingdom, 99 (6): 1435-1441 https://dx.doi.org/10.1017/s0025315419000274
MEESE, E.N. & LOWE, C.G. (2019) Finding a Resting Place: How Environmental Conditions Influence the Habitat Selection of Resting Batoids. Bulletin of the Southern California Academy of Sciences, 118 (2): 87-101 https://dx.doi.org/10.3160/0038-3872-118.2.87
NASBY-LUCAS, N. & DEWAR, H. & SOSA-NISHIZAKI, O. & WILSON, C. & HYDE, J.R. & VETTER, R.D. & WRAITH, J. & BLOCK, B.A. & KINNEY, M.J. & SIPPEL, T. & HOLTS, D.B. & KOHIN, S. (2019) Movements of electronically tagged shortfin mako sharks (Isurus oxyrinchus) in the eastern North Pacific Ocean. Animal Biotelemetry, 7: 12 https://dx.doi.org/10.1285/i15910725v41p23
PERRYMAN, R.J.Y. & VENABLES, S.K. & TAPILATU, R.F. & MARSHALL, A.D. & BROWN, C. & FRANKS, D.W. (2019) Social preferences and network structure in a population of reef manta rays. Behavioral Ecology and Sociobiology, 73 (8): 114 https://dx.doi.org/10.1007/s00265-019-2720-x
PIROG, A. & MAGALON, H. & POIROUT, T. & JAQUEMET, S. (2019) Reproductive biology, multiple paternity and polyandry of the bull shark Carcharhinus leucas. Journal of Fish Biology, in press https://dx.doi.org/10.1134/S013434751904003X
QUEIROZ, N. & HUMPHRIES, N.E. & COUTO, A. & VEDOR, M. & COSTA, I. & SEQUEIRA, A.M.M. & MUCIENTES, G. & SANTOS, A.M. & ABASCAL, F.J. & ABERCROMBIE, D.L. & ABRANTES, K. & ACUNA-MARRERO, D. & AFONSO, A.S. & AFONSO, P. & ANDERS, D. & ARAUJO, G. & ARAUZ, R. & BACH, P. & BARNETT, A. & BERNAL, D. & BERUMEN, M.L. & LION, S.B. & BEZERRA, N.P.A. & BLAISON, A.V. & BLOCK, B.A. & BOND, M.E. & BONFIL, R. & BRADFORD, R.W. & BRAUN, C.D. & BROOKS, E.J. & BROOKS, A. & BROWN, J. & BRUCE, B.D. & BYRNE, M.E. & CAMPANA, S.E. & CARLISLE, A.B. & CHAPMAN, D.D. & CHAPPLE, T.K. & CHISHOLM, J. & CLARKE, C.R. & CLUA, E.G. & COCHRAN, J.E.M. & CROCHELET, E.C. & DAGORN, L. & DALY, R. & CORTES, D.D. & DOYLE, T.K. & DREW, M. & DUFFY, C.A.J. & ERIKSON, T. & ESPINOZA, E. & FERREIRA, L.C. & FERRETTI, F. & FILMALTER, J.D. & FISCHER, G.C. & FITZPATRICK, R. & FONTES, J. & FORGET, F. & FOWLER, M. & FRANCIS, M.P. & GALLAGHER, A.J. & GENNARI, E. & GOLDSWORTHY, S.D. & GOLLOCK, M.J. & GREEN, J.R. & GUSTAFSON, J.A. & GUTTRIDGE, T.L. & GUZMAN, H.M. & HAMMERSCHLAG, N. & HARMAN, L. & HAZIN, F.H.V. & HEARD, M. & HEARN, A.R. & HOLDSWORTH, J.C. & HOLMES, B.J. & HOWEY, L.A. & HOYOS, M. & HUETER, R.E. & HUSSEY, N.E. & HUVENEERS, C. & IRION, D.T. & JACOBY, D.M.P. & JEWELL, O.J.D. & JOHNSON, R. & JORDAN, L.K.B. & JORGENSEN, S.J. & JOYCE, W. & DALY, C.A.K. & KETCHUM, J.T. & KLIMLEY, A.P. & KOCK, A.A. & KOEN, P. & LADINO, F. & LANA, F.O. & LEA, J.S.E. & LLEWELLYN, F. & LYON, W.S. & MACDONNELL, A. & MACENA, B.C.L. & MARSHALL, H. & MCALLISTER, J.D. & MCAULEY, R. & MEYER, M.A. & MORRIS, J.J. & NELSON, E.R. & PAPASTAMATIOU, Y.P. & PATTERSON, T.A. & PENAHERRERA-PALMA, C. & PEPPERELL, J.G. & PIERCE, S.J. & POISSON, F. & QUINTERO, L.M. & RICHARDSON, A.J. & ROGERS, P.J. & ROHNER, C.A. & ROWAT, D.R.L. & SAMOILYS, M. & SEMMENS, J.M. & SHEAVES, M. & SHILLINGER, G. & SHIVJI, M. & SINGH, S. & SKOMAL, G.B. & SMALE, M.J. & SNYDERS, L.B. & SOLER, G. & SORIA, M. & STEHFEST, K.M. & STEVENS, J.D. & THORROLD, S.R. & TOLOTTI, M.T. & TOWNER, A. & TRAVASSOS, P. & TYMINSKI, J.P. & VANDEPERRE, F. & VAUDO, J.J. & WATANABE, Y.Y. & WEBER, S.B. & WETHERBEE, B.M. & WHITE, T.D. & WILLIAMS, S. & ZARATE, P.M. & HARCOURT, R. & HAYS, G.C. & MEEKAN, M.G. & THUMS, M. & IRIGOIEN, X. & EGUILUZ, V.M. & DUARTE, C.M. & SOUSA, L.L. & SIMPSON, S.J. & SOUTHALL, E.J. & SIMS, D.W. (2019) Global spatial risk assessment of sharks under the footprint of fisheries. Nature, 572 (7770): 461 https://dx.doi.org/10.1038/s41586-019-1444-4
RAMÍREZ-AMARO, S. & FERNÁNDEZ-PERALTA, L. & SERNA, F. & PUERTO, M.A. (2019) Abnormalities in two shark species, the blue shark, Prionace glauca, and the school shark, Galeorhinus galeus (Elasmobranchii: Carcharhiniformes), from the Canary Islands, eastern tropical Atlantic. Acta Ichthyologica et Piscatoria, 49 (3): 295–303 https://dx.doi.org/10.3750/AIEP/02615
RUSSO, R.A. (2019) Primary and secondary nursery areas for leopard and brown smoothhound sharks in San Francisco Bay, California. California Fish and Game, 105 (1): 21-30
SALINAS-DE-LEÓN, P. & FIERRO-ARCOS, D. & SUAREZ-MONCADA, J. & PROAÑO, A. & GUACHISACA-SALINAS, J. & PÁEZ-ROSAS, D. (2019) A matter of taste: Spatial and ontogenetic variations on the trophic ecology of the tiger shark at the Galapagos Marine Reserve. PLoS ONE, 14 (9): e0222754 https://dx.doi.org/10.1643/CG-18-115
SHAMIR, Z.Z. & SHAMIR, S.Z. & TCHERNOV, D. & SCHEININ, A. & BECKER, N. (2019) Shark aggregation and tourism: opportunities and challenges of an emerging phenomenon. International Journal of Sustainable Development and World Ecology, 26 (5): 406-414 https://dx.doi.org/10.1111/jfb.14118
THORBURN, J. & NEAT, F. & BURRETT, I. & HENRY, L.-A. & BAILEY, D.M. & JONES, C.S. & NOBLE, L.R. (2019) Ontogenetic Variation in Movements and Depth Use, and Evidence of Partial Migration in a Benthopelagic Elasmobranch. Frontiers in Ecololgy and Evolution, 7: 353 https://dx.doi.org/10.3389/fevo.2019.00353
WEIDELI, O.C. & BOUYOUCOS, I.A. & PAPASTAMATIOU, Y.P. & MESCAM, G. & RUMMER, J.L. & PLANES, S. (2019) Same species, different prerequisites: investigating body condition and foraging success in young reef sharks between an atoll and an island system. Scientific Reports, 9: 13447 https://dx.doi.org/10.1038/s41598-019-49761-2
WINDUSARI, Y. & HANUM, L. & SETIAWAN, D. & IQBAL, M. (2019) Photographic evidence of freshwater whipray Urogymnus dalyensis (Myliobatiformes: Dasyatidae) in Indonesian waters. Ecologica Montenegrina, 22: 166-170
Extinct Chondrichthyes:
CASE, G.R. & COOK, T.D. & KIGHTLINGER, T. & BORODIN, P.D. (2019) Middle Campanian Euselachian Diversity of the Southern Region of the Atlantic Coastal Plain of North America. Vertebrate Anatomy Morphology Palaeontology, 7: 69–82 https://dx.doi.org/10.3160/0038-3872-118.2.87
CONDAMINE, F.L. & ROMIEU, J. & GUINOT, G. (2019) Climate cooling and clade competition likely drove the decline of lamniform sharks. Proceedings of the National Academy of Sciences, in press https://dx.doi.org/10.1073/pnas.1903067116
GINTER, M. & ZŁOTNIK, M. (2019) Mississippian chondrichthyan fishes from the area of Krzeszowice, southern Poland. Acta Palaeontologica Polonica, 64 (3): 549-564 https://dx.doi.org/10.4202/app.00619.2019
JOST, J. (2019) Molasse In: Schlüchter, C., Isler, A., Jost, J., Gisler, C., Wanner, J., Murer, R., Strasky, S., Grünig, A. & Hofmann, B. (eds), Blatt 1148 Sumiswald, Blatt 1149 Wolhusen, Blatt 1168 Langnau i.E., Geolischer Atlas Schweiz 1:25 000, Karte 163, 164, 165. Bundesamt für Landestopografie, CH-3084 Wabern: pp 17-68
MARRAMÀ, G. & CARNEVALE, G. & GIUSBERTI, L. & NAYLOR, G.J.P. & KRIWET, J. (2019) A bizarre Eocene dasyatoid batomorph (Elasmobranchii, Myliobatiformes) from the Bolca Lagerstätte (Italy) reveals a new, extinct body plan for stingrays. Scientific Reports, 9: 14087 https://dx.doi.org/10.1051/parasite/2019060
MENNAD, A. & TABUCE, R. & GUINOT, G. & SARR, R. & BENYOUCEF, M. & BENSALAH, M. & CAPPETTA, H. & CHARRIÈRE, A. & ADACI, M. (2019) Découverte d’une nouvelle faune d’âge cénomanien dans la région de Forthassa (Atlas saharien occidental, Algérie) : Implications biostratigraphiques et paléoenvironnementales. [Discovery of a new Cenomanian fauna in Forthassa area (Western Saharan Atlas, Algeria): Biostratigraphical and palaeoenvironmental implications] Annales de Paléontologie, in press https://dx.doi.org/10.1016/j.annpal.2019.05.005
SHIMADA, K. (2019) The size of the megatooth shark, Otodus megalodon (Lamniformes: Otodontidae), revisited. Historical Biology, in press https://dx.doi.org/10.1080/13504509.2019.1573769
VILLALOBOS‐SEGURA, E. & UNDERWOOD, C.J. & WARD, D.J. (2019) The first skeletal record of the enigmatic Cretaceous sawfish genus Ptychotrygon (Chondrichthyes, Batoidea) from the Turonian of Morocco. Papers in Palaeontology, in press
Parasites:
DEROUICHE, I. & NEIFAR, L. & GEY, D. & JUSTINE, J.-L- & TAZEROUTI, F. (2019) Holocephalocotyle monstrosae n. gen. n. sp. (Monogenea, Monocotylidae) from the olfactory rosette of the rabbit fish, Chimaera monstrosa (Holocephali, Chimaeridae) in deep waters off Algeria. Parasite, 26: 59 https://dx.doi.org/10.1071/MF19089
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MISCELLANEOUS:
These top predators travel far across the Pacific, returning to the same areas in the Southern California Bight each year
- Date: September 11, 2019
- Source: NOAA Fisheries West Coast Region
- Summary: The largest effort ever to tag and track shortfin mako sharks off the West Coast has found that they can travel nearly 12,000 miles in a year. The sharks range far offshore, but regularly return to productive waters off Southern California, an important feeding and nursery area for the species.
- Date: September 26, 2019
- Source: University of Exeter
- Summary: Tracking the world's second-largest shark species has revealed that it moves to different depths depending on the time of year.
- Date: September 17, 2019
- Source: ARC Centre of Excellence for Coral Reef Studies
- Summary: Scientists compared the growth and body condition of one species of shark in two different environments. They found larger shark pups on degraded reefs grow less and perform worse than smaller pups on pristine reefs. Human-induced stressors, including climate change, put shark populations at risk -- they may not be able to adapt fast enough to keep pace with the changes that are happening in their environment.
CHICAGO — The iconic extinct megatooth shark, Otodus megalodon, is an impressive gigantic shark, but new research shows scientifically justifiable maximum size for the fossil species to be no more than about 15 meters (nearly 50 feet).
Turns Out The Megalodon Shark Ain't THAT Big
“Biggest Shark of All Time” Gets Downsized
- Date: October 2, 2019
- Source: University of Vienna
- Summary: An international research team has discovered a new and well-preserved fossil stingray with an exceptional anatomy, which greatly differs from living species. The find provides new insights into the evolution of these animals and sheds light on the recovery of marine ecosystems after the mass extinction occurred 66 million years ago.
A fish species dated to about 383 million years ago is the earliest known member of the group that includes sharks. |
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