NEWSLETTER 12/2020 06.12.2020
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Please acknowledge use of the database www.shark-references.com in your publications, and cite:
Pollerspöck, J. & Straube, N. 2020, Bibliography database of living/fossil sharks, rays and chimaeras (Chondrichthyes: Elasmobranchii, Holocephali), www.shark-references.com, World Wide Web electronic publication, Version 2020 |
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After a turbulent 2020, we would like to thank all our supporters, subscribers and anyone just finding Shark References informative and helpful. We wish all of you merry Christmas and the best for 2021!
NEWS/ OWN RESEARCH A new species of the enigmatic shark genus Nanocetorhinus (Chondrichthyes) from the Oligocene of Austria with palaeoceanographic implications. Austrian Journal of Earth Sciences 113(2):229-236, DOI: 10.17738/ajes.2020.0014 Iris Feichtinger, Jürgen Pollerspöck & Mathias Harzhauser Deep-neritic sediments of the Eferding Formation (Egerian, Upper Oligocene) of Upper Austria from the Kamig kaolinite quarry revealed minute teeth of the putatively planktivorous shark genus Nanocetorhinus. This is the oldest unambiguous record of this rarely documented genus, which was known so far only from Miocene deposits of Europe, North America and Japan. Based on previous studies, which showed a positive correlation between sediments of nutrient rich waters and plankton blooms with a majority of ichthyoliths of Keasius and Nanocetorhinus, we argue for a filter-feeding and migratory lifestyle of the latter. Thus, it is supposed that Nanocetorhinus migrated seasonally for foraging, in a similar way to the extant basking shark Cetorhinus maximus. This mode of life and the wide paleogeographic distribution of the open marine genus Nanocetorhinus requires a deep and fully marine connection between the Paratethys and the Proto-Mediterranean Sea during late Oligocene times, which might have been established via the Slovenian Corridor. free download via researchgate-------------------------------------------- Intraspecific dental variations in the deep-sea shark Etmopterus spinax and their significance in the fossil record. Zoomorphology, 139 (4): 483–491DOI: 10.1007/s00435-020-00503-3
Nicolas Straube & Jürgen PollerspöckWe analyzed the dentition of 40 jaws of the Velvet Belly Lantern Shark Etmopterus spinax and identified ontogenetic and sexual dimorphic characters such as total number of teeth, number of upper teeth, cusplet numbers in upper jaw teeth and width of lower jaw teeth. Dimorphic characters may reduce intraspecific competition for food, as E. spinax segregates by sex and size and may allow for identifying the male sex. The lower jaw tooth height, a sexually non-dimorphic character, was used to re-calculate the total length of specimens, which represents the first such approach for a squaliform shark. Results derived from the extant E. spinax are subsequently applied to fossil Etmopterus sp. teeth (Miocene) to gain individual information such as sex or size, but also characterize the extinct population from the excavation site by a size distribution profile in comparison to data from extant populations. This approach indicates the presence of multiple ontogenetic stages in the extinct population.  Comparison of fossil Etmopterus sp. upper teeth with Etmopterus spinax upper teeth. a Adult male upper tooth from specimen ES2020_03 (1st functional row; tooth position 5 counting from symphysis). b Potentially adult male fossil upper tooth with increased number of needle-like cusplets (Miocene, Mitterdorf, Neuhofener Beds, Germany). c Adult female upper tooth from specimen ES 1253 (1st functional row; tooth position 6 counting from symphysis). d Potentially (adult?) female fossil upper tooth with triangular, wider cusplets  Morphological variation between sexes and ontogenetic groups. TL total length in cm. If possible, specimens of similar or same sizes were compared at similar or same tooth positions depending on conditions. UJ upper jaw, LJ lower jaw, l left from symphysis. free download via reseachgateor webpage
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NEW PARTNERS OF SHARK-REFERENCES
Would you like to become a shark-reference partner? Please contact 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 Nebrius ferrugineus (LESSON, 1831)
Pradip Patade, India for images of Rhynchobatus laevis (BLOCH & SCHNEIDER, 1801)
Owen R. O’Shea for some images of Styracura schmardae (WERNER, 1904)
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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.
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
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:
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
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
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.
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:
NEW information!
After discussions with the EEA Board, we have decided to postpone this year’s European Elasmobranch Association Annual Meeting entirely until 2021. The good news is that it will be at the same venue, around the same time, just one year on! We hope to see you all there.
The 24th Annual Scientific Meeting of the European Elasmobranch Association will be held by the Dutch member group Nederlandse Elasmobranchen Vereniging (NEV) in Leiden, the Netherlands between 28th and 30th October, 2020. The venue is the fascinating Naturalis Biodiversity Center.
Looking forward to seeing you in Leiden!
Important notice
Due to Dutch government measures in response to the Covid19 pandemic, all restaurants, hotels, sights, and attractions in the Netherlands are currently closed. All social gatherings are banned until June 1st, 2020. At this time, we assume that gatherings will be possible by October, and therefore we are going ahead with organizing the conference. Tickets to the conference can be purchased without risk. In case of cancellation due to Covid19 measures, all tickets will be reimbursed in full. In case of personal cancellation, a service fee of approx. 5 Euros will apply.
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Puebla, México, 19 - 23/04/2021
The Sociedad Mexicana de Peces Cartilaginosos, A. C. (SOMEPEC), is a non-profit organization that organizes the IX National Symposium of Sharks and Rays, and II Latin American Congress Sharks, Rays and Chimeras.
La Sociedad Mexicana de Peces Cartilaginosos, A. C. (SOMEPEC), es una organización sin fines de lucro, que busca promover el estudio científico de los tiburones y rayas, así como uso racional. Fiel a su objetivo de crear espacios para el intercambio de experiencias y avances de las diferentes líneas de investigación sobre tiburones y rayas, que se desarrollan en México y el resto del mundo, organiza el IX Simposium Nacional de Tiburones y Rayas, y II Congreso Latinoamericano de Tiburones, Rayas y Quimeras.
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WCMB 2020 - ENTIRELY ONLINE NOW
We are excited to announce that the WCMB will be going ahead as planned in Auckland, but we will also be offering an online version of the conference for those that are not able to attend in person. Travel restrictions within New Zealand have been lifted so we will be partnering with the New Zealand Marine Sciences Society (who had to cancel their 2020 annual conference) as a means of increasing local participation in the conference. To accommodate our new partners the abstract submission deadline has been extended until the 14th June 2020.
Key Dates
• Early-bird Registration closes: 1 September 2020
• Late Registration starts: 1 December 2020
• Conference commences: 14 December 2020
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TAXONOMIC NEWS/ NEW SPECIES
Extant Chondrichthyes:
no news this month :-)
Extinct Chondrichthyes:
FREY, L. & COATES, M.I. & TIETJEN, K. & RÜCKLIN, M. & KLUG, C. (2020): A symmoriiform from the Late Devonian of Morocco demonstrates a derived jaw function in ancient chondrichthyans. Communications Biology, 3: 681
New species: Nanocetorhinus zeitlingeri
Abstract: The Palaeozoic record of chondrichthyans (sharks, rays, chimaeras, extinct relatives) and thus our knowledge of their anatomy and functional morphology is poor because of their predominantly cartilaginous skeletons. Here, we report a previously undescribed symmoriiform shark, Ferromirum oukherbouchi, from the Late Devonian of the Anti-Atlas. Computed tomography scanning reveals the undeformed shape of the jaws and hyoid arch, which are of a kind often used to represent primitive conditions for jawed vertebrates. Of critical importance, these closely fitting cartilages preclude the repeatedly hypothesized presence of a complete gill between mandibular and hyoid arches. We show that the jaw articulation is specialized and drives mandibular rotation outward when the mouth opens, and inward upon closure. The resultant eversion and inversion of the lower dentition presents a greater number of teeth to prey through the bite-cycle. This suggests an increased functional and ecomorphological disparity among chondrichthyans preceding and surviving the end-Devonian extinctions.
FEICHTINGER, I. & POLLERSPÖCK, J. & HARZHAUSER, M. (2020): A new species of the enigmatic shark genus Nanocetorhinus (Chondrichthyes) from the Oligocene of Austria with palaeoceanographic implications. Austrian Journal of Earth Sciences, 113 (1): 229 - 236
New species: Nanocetorhinus zeitlingeri
Abstract: Deep-neritic sediments of the Eferding Formation (Egerian, Upper Oligocene) of Upper Austria from the Kamig kaolinite quarry revealed minute teeth of the putatively planktivorous shark genus Nanocetorhinus. This is the oldest unambiguous record of this rarely documented genus, which was known so far only from Miocene deposits of Europe, North America and Japan. Based on previous studies, which showed a positive correlation between sediments of nutrient rich waters and plankton blooms with a majority of ichthyoliths of Keasius and Nanocetorhinus, we argue for a filter-feeding and migratory lifestyle of the latter. Thus, it is supposed that Nanocetorhinus migrated seasonally for foraging, in a similar way to the extant basking shark Cetorhinus maximus. This mode of life and the wide paleogeographic distribution of the open marine genus Nanocetorhinusrequires a deep and fully marine connection between the Paratethys and the Proto-Mediterranean Sea during late Oligocene times, which might have been established via the Slovenian Corridor.
Parasites:
CHISHOLM, L.A. & KRITSKY, D.C. (2020): Heterocotyle whittingtoni n. sp. (Monogenea: Monocotylidae) from the gills of the black-spotted whipray, Maculabatis toshi (Whitley) (Myliobatiformes: Dasyatidae), collected in coastal waters of Queensland, Australia. Systematic Parasitology, in press
New species: Heterocotyle whittingtonin
Abstract: Heterocotyle whittingtoni n. sp. (Monogenea: Monocotylidae) is described from the gills of the black-spotted whipray Maculabatis toshi (Whitley) (Dasyatidae) collected from Moreton Bay near Dunwich and Peel Island, and from the eastern Gulf of Carpentaria off Weipa, Queensland, Australia. Heterocotyle whittingtoni n. sp. has a single sinuous ridge surmounting the haptoral septa and the male copulatory organ lacks an accessory piece. The new species can be distinguished from the two other Heterocotyle species that have this combination of characters by the distal portion of the male copulatory organ which is slightly flared with uniquely thickened walls and by the morphology of the testis. The identity of the host of H. whittingtoni n. sp. is discussed. We confirm that the host of the monocotylids Dendromonocotyle lasti Chisholm & Whittington, 2005 and Monocotyle caseyae Chisholm & Whittington, 2005 originally identified as “Himantura sp.” was M. toshi.
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Latest Research Articles
Extant Chondrichthyes:
ARAUJO, N. & LOPES, C. & BETTCHER, V. & NEVES, L. & BARBOSA-FILHO, M. & AMARAL, C. & SICILIANO, S. & HAUSER-DAVIS, R. (2020)-Artisanally landed elasmobranchs along the coast of Rio de Janeiro, Brazil. Boletim do Laboratório de Hidrobiologia, 30 (1): 33-53
ATHIRA, P.P. & ANJU, M.V. & ANOOJA, V.V. & ARCHANA, K. & NEELIMA, S. & ROSAMMA, P. (2020)-A histone H2A-derived antimicrobial peptide, Hipposin from mangrove whip ray, Himantura walga: Molecular and functional characterisation. 3 Biotech, 10 (11): 467 http://dx.doi.org/10.1007/s13205-020-02455-3
BASHIR, Z. & ABDULLAH, M.M. & RUSLI, M.U. (2020)-Comparisons between tissues, preservation, and desiccation methods on stable isotopes δ13C and δ15N of spot-tail sharks (Carcharhinus sorrah) from the South China Sea. Turkish Journal of Fisheries and Aquatic Sciences, 20 (9): 711-716 http://dx.doi.org/10.4194/1303-2712-v20_9_01
BECERRIL-GARCÍA, E.E. & MARTÍNEZ-RINCÓN, R.O. & GALVÁN-MAGAÑA, F. & SANTANA-MORALES, O. & HOYOS-PADILLA, E.M. (2020)-Statistical modelling reveals spatial, temporal, and environmental preferences for white sharks at an oceanic aggregation site. Marine Ecology Progress Series, 655: 171-183 http://dx.doi.org/10.3354/meps13528
BECERRIL-GARCÍA, E.E. & MARTÍNEZ-RINCÓN, R.O. & GALVÁN-MAGAÑA, F. & SANTANA-MORALES, O. & HOYOS-PADILLA, E.M. (2020)-Statistical modelling reveals spatial, temporal, and environmental preferences for white sharks at an oceanic aggregation site. Mar Ecol Prog Ser, 655: 171-183 http://dx.doi.org/10.3354/meps13528
BENGIL, E.G.T. & AKBORA, H.D. & HADJIOANNOU, L. & PAPAGEORGIOU, M. & SNAPE, R. (2020)-A new species in town: New record of Hexanchus nakamurai Teng, 1962 from the Levantine Sea. Journal of Applied Ichthyology, in press http://dx.doi.org/10.1111/jai.14125
BOOTH, H. & POOLEY, S. & CLEMENTS, T. & PUTRA, M.I.H. & LESTARI, W.P. & LEWIS, S. & WARWICK, L. & MILNER-GULLAND, E. (2020)-Assessing the impact of regulations on the use and trade of wildlife: An operational framework, with a case study on manta rays. Global Ecology and Conservation, 22: e00953 http://dx.doi.org/10.1016/j.gecco.2020.e00953
BOULANGER, C. & PUAUD, S. & LY, V. & GLEMAREC, L. & HENG, S.P. & FORESTIER, H. (2020)-Fishbone artefacts from the Samrong Sen site, Cambodia, cast new light on Bronze Age networking between inland and coastal communities-International Journal of Osteoarchaeology, in press http://dx.doi.org/10.1002/oa.2922
BREVE, N.W.P. & WINTER, H.V. & WIJMANS, PADM, GREENWAY, E.S.I. & NAGELKERKE, L.A.J. (2020)-Sex differentiation in seasonal distribution of the starry smooth-hound Mustelus asterias. Journal of Fish Biology, in press http://dx.doi.org/10.1111/jfb.14548
BROWN, C. (2020)-Underwater video identifies individual sharks to aid population management. Journal of Fish Biology, 97 (4): 937 http://dx.doi.org/10.1111/jfb.14511
CALLE-MORAN, M.D. & GALVAN-MAGANA, F. (2020)-Diet composition and feeding habits of the pelagic thresher shark Alopias pelagicus in Eastern Central Pacific Ocean, Ecuadorian waters. Journal of the Marine Biological Association of the United Kingdom, 100 (5): 837-845 http://dx.doi.org/10.1017/s0025315420000569
CANANI, G. & ODDONE, M.C. (2020)-Reproductive biology of Isurus oxyrinchus captured by the south Brazilian surface longline commercial fleet in the Southwest Atlantic Ocean, with data on CPUE and size distribution by sex. Journal of Northwest Atlantic Fishery Science, 51: 105–116 http://dx.doi.org/10.2960/J.v51.m724
CARREON-ZAPIAIN, M.T. & TAVARES, R. & FAVELA-LARA, S. & ONATE-GONZALEZ, E.C. (2020)-Ecological Risk Assessment with integrated genetic data for three commercially important shark species in the Mexican Pacific. Regional Studies in Marine Science, 39: 101431 http://dx.doi.org/10.1016/j.rsma.2020.101431
CARRILLO, L. & TAVARES, R. & SANCHEZ, L. & VELASQUEZ, C. (2020)-Age and growth of the smalleye smooth-hound shark, Mustelus higmani (Carcharhiniformes: Triakidae) from the Venezuelan Caribbean. Revista De Biologia Tropical, 68 (4): 1211-1220
DIAZ-CARBALLIDO, P.L. & GUTIERREZ-CORIA, A.A. & CARRASCO-BAUTISTA, P.E. & RAMIREZ-CHAVEZ, E.J. & TORRES-HUERTA, A.M. (2020)-Presence of pregnant females of the Gorgona guitarfish, Pseudobatos prahli, in the Mexican tropical Pacific. Journal of Fish Biology, in press http://dx.doi.org/10.1111/jfb.14534
DUCHATELET, L. & MORIS, V.C. & TOMITA, T. & MAHILLON, J. & SATO, K. & BEHETS, C. & MALLEFET, J. (2020)-The megamouth shark, Megachasma pelagios, is not a luminous species. PLoS ONE, 15 (11): e0242196 http://dx.doi.org/10.1371/journal.pone.0242196
FERNANDA RAMOS COELHO, J. & LIMA, S.M.Q. & PETEAN, F.F. (2020)-Phylogenetic conservatism of abiotic niche in sympatric Southwestern Atlantic skates. Marine Biology Research, in press http://dx.doi.org/10.1080/17451000.2020.1837883
GONÇALVES E SILVA, F. & SANTOS, H.F. & ASSIS LEITE, D.C. & LUTFI, D.S. & VIANNA, M. & ROSADO, A.S. (2020)-Skin and stinger bacterial communities in two critically endangered rays from the South Atlantic in natural and aquarium settings. MicrobiologyOpen, in press http://dx.doi.org/10.1002/mbo3.1141
GONZALEZ, M.T. & SEPULVEDA, F.A. & ZARATE, P.M. & BAEZA, J.A. (2020)-Regional population genetics and global phylogeography of the endangered highly migratory shark Lamna nasus: Implications for fishery management and conservation. Aquatic Conservation-Marine and Freshwater Ecosystems, in press http://dx.doi.org/10.1002/aqc.3455
GONZALEZ‐PESTANA, A. & MANGEL, J.C. & ALFARO‐CÓRDOVA, E. & ACUÑA‐PERALES, N. & CÓRDOVA‐ZAVALETA, F. & SEGURA‐COBEÑA, E. & BENITES, D. & ESPINOZA, M. & COASACA‐CÉSPEDES, J. & JIMÉNEZ, A. & PINGO, S. & MOSCOSO, V. & ALFARO‐SHIGUETO, J. & ESPINOZA, P. (2020)-Diet, trophic interactions and possible ecological role of commercial sharks and batoids in northern Peruvian waters. Journal of Fish Biology, in press http://dx.doi.org/10.1111/jfb.14624
GUIMARAES-COSTA, A. & MACHADO, F.S. & REIS, J.A. & ANDRADE, M. & ARAUJO, R.G. & CORREA, E.M.R. & SAMPAIO, I. & GIARRIZZO, T. (2020)-DNA Barcoding for the Assessment of the Taxonomy and Conservation Status of the Fish Bycatch of the Northern Brazilian Shrimp Trawl Fishery. Frontiers in Marine Science, 7: 566021 http://dx.doi.org/10.3389/fmars.2020.566021
HAUSER-DAVIS, R.A. & BARBOSA-FILHO, M.L.V. & PEREIRA, L.H.S. & LOPES, C.A. & MOREIRA, S.C. & ROCHA, R.C.C. & SAINT’PIERRE, T.A. & BALDASSIN, P. & SICILIANO, S. (2020)-First record of a morphologically abnormal and highly metal-contaminated Spotback Skate Atlantoraja castelnaui (Rajiformes: Arhynchobatidae) from southeastern Rio de Janeiro, Brazil. Journal of Threatened Taxa, 12 (11): 16510–16520 http://dx.doi.org/10.11609/jott.5903.12.11.16510-16520
HENDERSON, A.C. (2020)-A review of potential taxonomic barriers to the effective management of Gulf elasmobranch fisheries. Aquatic Ecosystem Health & Management, 23 (2): 210-219 http://dx.doi.org/10.1080/14634988.2020.1800327
HETJENS, B. & PLATTE, F. & SCHOLZ, P. (2020)-Und der Haifisch, der hat Zähne …† Ein Forschungsprojekt-Chemie in Unserer Zeit, in press http://dx.doi.org/10.1002/ciuz.201900065
HONDA, Y. & TAKAGI, W. & WONG, M.K.S. & OGAWA, N. & TOKUNAGA, K. & KOFUJI, K. & HYODO, S. (2020)-Morphological and functional development of the spiral intestine in cloudy catshark (Scyliorhinus torazame). Journal of Experimental Biology, 223 (13): jeb225557 http://dx.doi.org/10.1242/jeb.225557
JU, P.L. & CHEN, M.R. & TIAN, Y.J. & ZHAO, Y. & YANG, S.Y. & XIAO, J.M. (2020)-Stock Status Estimating of 5 Shark Species in the Waters Around Taiwan Using a Length-Based Bayesian Biomass Estimation (LBB) Method. Frontiers in Marine Science, 7: 632 http://dx.doi.org/10.3389/fmars.2020.00632
KABASAKAL, H. (2020)-Agreement with the Monster Lessons We Learned from the Great White Shark in Turkish Waters. Turkish Marine Research Foundation (TUDAV) Publication, 57, Istanbul, Turkey, 74 pp.
KRAFT, D.W. & CONKLIN, E.E. & BARBA, E.W. & HUTCHINSON, M. & TOONEN, R.J. & FORSMAN, Z.H. & BOWEN, B.W. (2020)-Genomics versus mtDNA for resolving stock structure in the silky shark (Carcharhinus falciformis). Peerj, 8: e10186- http://dx.doi.org/10.7717/peerj.10186
LIPSCOMBE, R.S. & SPAET, J.L.Y. & SCOTT, A. & LAM, C.H. & BRAND, C.P. & BUTCHER, P.A. (2020)-Habitat use and movement patterns of tiger sharks (Galeocerdo cuvier) in eastern Australian waters. ICES Journal of Marine Science, in press http://dx.doi.org/10.1093/icesjms/fsaa212
LYONS, K. & GALLOWAY, A.S. & ADAMS, D.H. & REYIER, E.A. & BARKER, A.M. & PORTNOY, D.S. & FRAZIER, B.S. (2020)-Maternal provisioning gives young-of-the-year Hammerheads a head start in early life. Marine Biology, 167 (11): 157 http://dx.doi.org/10.1007/s00227-020-03766-y
MACKERACHER, T. & MIZRAHI, M. & BERGSETH, B. & MAUNG, K.M.C. & KHINE, Z.L. & PHYU, E.T. & SIMPFENDORFER, C.A. & DIEDRICH, A. (2020)-Understanding non-compliance in small-scale fisheries: Shark fishing in Myanmar's Myeik Archipelago. Ambio, in press http://dx.doi.org/10.1007/s13280-020-01400-1
MARCHETTI, P. & MOTTOLA, A. & PIREDDA, R. & CICCARESE, G. & DI PINTO, A. (2020)-Determining the Authenticity of Shark Meat Products by DNA Sequencing. Foods, 9 (9): 1194- http://dx.doi.org/10.3390/foods9091194
MATICH, P. & PLUMLEE, J.D. & WEIDELI, O.C. & FISHER, M. (2020)-New insights into the trophic ecology of blacktip sharks (Carcharhinus limbatus) from a subtropical estuary in the western Gulf of Mexico. Journal of Fish Biology, in press http://dx.doi.org/10.1111/jfb.14592
MEDINA-TRUJILLO, E.C. & MEJIA-FALLA, P.A. & SOSA-NISHIZAKI, O. (2020)-The reproductive potential of Pseudobatos productus: Intraspecific and interspecific variation. Regional Studies in Marine Science, 39: 101428 http://dx.doi.org/10.1016/j.rsma.2020.101428
MEEKAN, M.G. & TAYLOR, B.M. & LESTER, E. & FERREIRA, L.C. & SEQUEIRA, A.M.M. & DOVE, A.D.M. & BIRT, M.J. & ASPINALL, A. & BROOKS, K. & THUMS, M. (2020)-Asymptotic Growth of Whale Sharks Suggests Sex-Specific Life-History Strategies. Frontiers in Marine Science, 7: 575683 http://dx.doi.org/10.3389/fmars.2020.575683
MENDEZ-DA SILVEIRA, E.D. & TORRES-ROJAS, Y.E. & GALVAN-MAGANA, F. & SANCHEZ-GONZALEZ, A. & ELORRIAGA-VERPLANCKEN, F. & TRIPP-VALDEZ, A. & DELGADO-HUERTAS, A. (2020)-Trophic interactions between shark species on the western coast of Baja California Sur: Inferences from stable isotopes. Regional Studies in Marine Science, 39: 101463 http://dx.doi.org/10.1016/j.rsma.2020.101463
MONTES-DOMINGUEZ, H.M. & CASTILLO-RIVERA, M.A. & AYALA-PEREZ, L.A. & GONZALEZ-ISAIS, M. & REYNOSO, V.H. (2020)-Brain morphology of Gymnura lessae and Gymnura marmorata (Chondrichthyes: Gymnuridae) and its implications for batoid brain evolution-Anatomical Record-Advances in Integrative Anatomy and Evolutionary Biology, in press http://dx.doi.org/10.1002/ar.24528
NEWTON, K.C. & KAJIURA, S.M. (2020)-The yellow stingray (Urobatis jamaicensis) can discriminate the geomagnetic cues necessary for a bicoordinate magnetic map. Marine Biology, 167 (10): 151 http://dx.doi.org/10.1007/s00227-020-03763-1
O’SHEA, O.R. & MEADOWS, M.H. & WRIGGLESWORTH, E.E. & NEWTON, J. & HAWKES, L.A. (2020)-Novel insights into the diet of southern stingrays and Caribbean whiptail rays. Marine Ecology Progress Series, 655: 157-170 http://dx.doi.org/10.3354/meps13529
PARK, J. & KIM, S.J. & KIM, E. (2020)-Changes in the Microbial Community of the Mottled Skate (Beringraja pulchra) during Alkaline Fermentation. Journal of Microbiology and Biotechnology, 30 (8): 1195-1206 http://dx.doi.org/10.4014/jmb.2003.03024
PATEL, E. & BERNARD, A.M. & MEHLROSE, M. & HARNED, S. & FINNEGAN, K.A. & FITZPATRICK, C.K. & LEA, J.S. & SHIVJI, M.S. (2020)-The complete mitochondrial genome of a gray reef shark, Carcharhinus amblyrhynchos (Carcharhiniformes: Carcharhinidae), from the Western Indian Ocean. Mitochondrial DNA Part B-Resources, 5 (3): 3516-3517 http://dx.doi.org/10.1080/23802359.2020.1827064
PENKETH, L. & SCHLEIMER, A. & LABAJA, J. & SNOW, S. & PONZO, A. & ARAUJO, G. (2020)-Scarring patterns of whale sharks, Rhincodon typus, at a provisioning site in the Philippines. Aquatic Conservation-Marine and Freshwater Ecosystems, in press http://dx.doi.org/10.1002/aqc.3437
PITCHFORD, S.C. & SMITH, B.E. & MCBRIDE, R.S. (2020)-A real-time PCR assay to detect predation by spiny dogfish on Atlantic cod in the western North Atlantic Ocean-Ecology and Evolution, 10 (20): 11022-11030 http://dx.doi.org/10.1002/ece3.6694
RESTREPO-GOMEZ, D.C. & CRUZ-ESCALONA, V.H. & PETERSON, M.S. & MEJIA-FALLA, P.A. & NAVIA, A.F. (2020)-Effects of age, maturity stage, sex and seasonality on the feeding strategies of the diamond stingray (Hypanus dipterurus) in the southern Gulf of California-Marine and Freshwater Research, in press http://dx.doi.org/10.1071/mf20165
RICH, A.F. & ZENDRI, F. & THORNTON, S. & VERIN, R. (2020)-Meningoencephalitis with chondrocranial subcutaneous abscessation and septicaemia in a captive lemon shark (Negaprion brevirostris). Journal of Fish Diseases, in press http://dx.doi.org/10.1111/jfd.13276
ROMEO, T. & BATTAGLIA, P. & MACALUSO, D. & TAGLIAVIA, G. & VICCHIO, T.M. & FALAUTANO, M. & SERENA, F. & ANDALORO, F. (2020)-When prey becomes killer: does a double lethal attack on a blue shark reveal a precise defensive strategy in young swordfish?-Journal of the Marine Biological Association of the United Kingdom, 100 (5): 831-836 http://dx.doi.org/10.1017/s0025315420000661
SALEM, A. & FAKHFAKH, N. & JRIDI, M. & ABDELHEDI, O. & NASRI, M. & DEBEAUFORT, F. & ZOUARI, N. (2020)-Microstructure and characteristic properties of dogfish skin gelatin gels prepared by freeze/spray-drying methods. International Journal of Biological Macromolecules, 162: 1-10 http://dx.doi.org/10.1016/j.ijbiomac.2020.06.033
SANTOS, D.N.E. & AREDO, V. & BAZITO, R.C. & DE OLIVEIRA, A.L. (2020)-Water free incorporation of shark liver oil into starch microparticles by supercriticalCO(2)impregnation at low temperature. Journal of Food Process Engineering, in press: e13541 http://dx.doi.org/10.1111/jfpe.13541
SLEIGHT, V.A. & GILLIS, J.A. (2020)-Embryonic origin and serial homology of gill arches and paired fins in the skate, Leucoraja erinacea. eLife, 9: e60635- http://dx.doi.org/10.7554/eLife.60635
VENABLES, S.K. & MARSHALL, A.D. & ARMSTRONG, A.J. & TOMKINS, J.L. & KENNINGTON, W.J. (2020)-Genome-wide SNPs detect no evidence of genetic population structure for reef manta rays (Mobula alfredi) in southern Mozambique. Heredity, in press http://dx.doi.org/10.1038/s41437-020-00373-x
WANG, Z. & HORWITZ, R. & BOWLBY, H.D. & DING, F. & JOYCE, W.N. (2020)-Changes in ocean conditions and hurricanes affect porbeagle Lamna nasus diving behavior. Marine Ecology Progress Series, 654: 219-224 http://dx.doi.org/10.3354/meps13503
Extinct Chondrichthyes:
COLLARETA, A. & MERELLA, M. & CASATI, S. & DI CENCIO, A. (2020)-Did titanic stingrays wander the Pliocene Mediterranean Sea? Some notes on a giant-sized myliobatoid stinger from the Piacenzian of Italy. Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen, 298 (2): 155 - 164 http://dx.doi.org/10.1127/njgpa/2020/0941
CUNY, G. & CHAPUIS, A. & LEPRÉVOST, C. (2020)-Asteracanthus normands. Actes du premier colloque de l’APVSM, Paléontologie et Archéologie en Normandie, 5-6 octobre 2019. Bulletin de l’Association paléontologique de Villers-sur-Mer, 2020, p. 65-72
FEICHTINGER, I. & LUKENEDER, A. & TOPA, D. & KRIWET, J. & LIBOWITZKY, E. & WESTALL, F. (2020)-Fossil microbial shark tooth decay documents in situ metabolism of enameloid proteins as nutrition source in deep water environments. Scientific Reports, 10: 20979 http://dx.doi.org/10.1038/s41598-020-77964-5
FEICHTINGER, I. & POLLERSPÖCK, J. & HARZHAUSER, M. (2020)-A new species of the enigmatic shark genus Nanocetorhinus (Chondrichthyes) from the Oligocene of Austria with palaeoceanographic implications. Austrian Journal of Earth Sciences, 113 (1): 229 - 236 http://dx.doi.org/10.17738/ajes.2020.0014
FELLAH, C. & DOUILLARD, T. & MAIRE, E. & MEILLE, S. & REYNARD, B. & CUNY, G. (2020)-3D microstructural study of selachimorph enameloid evolution. Journal of Structural Biology, 213 (1): 107664 http://dx.doi.org/10.1016/j.jsb.2020.107664
FREY, L. & COATES, M.I. & TIETJEN, K. & RÜCKLIN, M. & KLUG, C. (2020)-A symmoriiform from the Late Devonian of Morocco demonstrates a derived jaw function in ancient chondrichthyans. Communications Biology, 3: 681 http://dx.doi.org/10.1038/s42003-020-01394-2
GREGOROVÁ, R. & BOHATÝ, M. & STEHLÍKOVÁ, D. & DUFFIN, C. (2020)-“Crapaudine” (Scheenstia teeth) – the jewel of Kings-Acta Musei Moraviae, Scientiae geologicae, 105 (2): 277-294
HERRAIZ, J.L. & RIBÉ, J. & BOTELLA, H. & MARTÍNEZ-PÉREZ, C. & FERRÓN, H.G. (2020)-Use of nursery areas by the extinct megatooth shark Otodus megalodon (Chondrichthyes: Lamniformes). Biology Letters, 16 (11): 20200746 http://dx.doi.org/10.1098/rsbl.2020.0746
KIM, S.L. & ZEICHNER, S.S. & COLMAN, A.S. & SCHER, H.D. & KRIWET, J. & MÖRS, T. & HUBER, M. (2020)-Probing the ecology and climate of the Eocene Southern Ocean with sand tiger sharks Striatolamia macrota. Paleoceanography and Paleoclimatology, in press http://dx.doi.org/10.1029/2020PA003997
KOCSIS, L. & BOTFALVAI, G. & QAMARINA, Q. & RAZAK, H. & KIRALY, E. & LUGLI, F. & WINGS, O. & LAMBERTZ, M. & RAVEN, H. & BRIGUGLIO, A. & RABI, M. (2020)-Geochemical analyses suggest stratigraphic origin and late Miocene age of reworked vertebrate remains from Penanjong Beach in Brunei Darussalam (Borneo). Historical Biology, in press http://dx.doi.org/10.1080/08912963.2020.1819999
RONAN, J. & DUFFIN, C.J. &HILDEBRANDT, C. & PARKER, A. & HUTCHINSON, D. & COPP, C. & BENTON, M.J. (2020)-Beginning of Mesozoic marine overstep of the Mendips: The Rhaetian and its fauna at Hapsford Bridge, Vallis Vale, Somerset, UK. Proceedings of the Geologists' Association, 131 (5): 578-594
VALENTIN, X. & GARCIA, G. & GOMEZ, B. & GOMEZ, V.D. & BOITEAU, J.M. & SAINT MARTIN, S. & SAINT MARTIN, J.P. (2020)-New fossil assemblage with amber, plants and vertebrates from the lower Cenomanian near Chatellerault (Vienne, western France). Bulletin de la Société Géologique de France, 191: 29 http://dx.doi.org/10.1051/bsgf/2020034
Parasites:
CHISHOLM, L.A. & KRITSKY, D.C. (2020)-Heterocotyle whittingtoni n. sp. (Monogenea: Monocotylidae) from the gills of the black-spotted whipray, Maculabatis toshi (Whitley) (Myliobatiformes: Dasyatidae), collected in coastal waters of Queensland, Australia. Systematic Parasitology, in press http://dx.doi.org/10.1007/s11230-020-09939-z
KAWANISHI, R. & OHASHI, S. (2020)-First Record of the Rare Parasitic Isopod Elthusa splendida (Cymothoidae) from the Pacific Ocean, Based on a Specimen Found in a Museum Shark Collection. Species Diversity, 25 (2): 343 http://dx.doi.org/10.12782/specdiv.25.343
LEITE, R.D. & WOSNICK, N. & GIARETA, E.P. & FREIRE, C.A. (2020)-Evidence of Dystocia in a Free-Ranging Cownose Ray Rhinoptera bonasus (Elasmobranchii, Rhinopteridae). Boletim do Laboratório de Hidrobiologia, 30 (2): 1-6
ÖKTENER, A. & VENTURA, D. & ŞIRIN, M. (2020)-Occurrence of Pandarus bicolor (Siphonostomatoida:Pandaridae) on vulnerable Shark Species: Oxynotus centrina and Squalus acanthias from Turkish Marine Waters. Vie et Milieu, 70 (1): 19-32
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MISCELLANEOUS:
Thanks to the Turkish Marine Research Foundation for the information about this new open access book about the Great White Shari in Turkish Waters!
KABASAKAL, H. 2020 Agreement with the Monster Lessons We Learned from the Great White Shark in Turkish Waters. Turkish Marine Research Foundation (TUDAV) Publication, 57, Istanbul, Turkey, 74 pp.
free download:
http://tudav.org/wp-content/uploads/2020/11/Great_white_shark_book_tudav.pdf?fbclid=IwAR2TFCrG3LtTD9s_KYSJvztxIX2Z4_PcShguARHL4kvrwdZON1CZyT8XCoI
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Prehistoric shark hid its largest teeth
- Date: November 18, 2020
- Source: University of Zurich
- Summary: Some, if not all, early sharks that lived 300 to 400 million years ago not only dropped their lower jaws downward but rotated them outwards when opening their mouths. This enabled them to make the best of their largest, sharpest and inward-facing teeth when catching prey, paleontologists have now shown using CT scanning and 3D printing.
full story
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Extremely rare parasitic crustacean discovered in museum shark collection
- Date: November 17, 2020
- Source: Hokkaido University
- Summary: Scientists have discovered an extremely rare species of cymothoid from the mouth of a museum specimen of a deep-sea shark caught from the East China Sea, suggesting its wide distribution around the globe.
full story
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Vienna researchers discover 138 million year old bacteria
The microbes lived deep in the tooth enamel of ancient deep sea sharks.
full story (in German)
scientific paper (open access):
Feichtinger, I., Lukeneder, A., Topa, D. et al. Fossil microbial shark tooth decay documents in situ metabolism of enameloid proteins as nutrition source in deep water environments. Sci Rep 10, 20979 (2020). https://doi.org/10.1038/s41598-020-77964-5
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