NEWSLETTER 02/2019 11.02.2019
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
NEW PARTNERS OF SHARK-REFERENCES
Would you like to become a shark-reference partner? Please contanct us per E-mail!
Partner in Google-Maps:
Many thanks to the following people for providing images:
Frederik H. Mollen (Elasmobranch Research Belgium) for the images of Potamotrygon tigrina DE CARVALHO, SABAJ PEREZ & LOVEJOY, 2011, (ERB 0972), female, 36,2 DW, 70,0 TL, Peru
Arve Lynghammar, Arctic University of Norway for a image of a egg capsule of Leucoraja fullonica (LINNAEUS, 1758), 85 mm TL, Iceland, mother: 104 cm TL
Sergio Iván Jiménez Suárez for a image of Squatina armata (PHILIPPI, 1887), male, San Andres de Tumaco, Nariño, Colombia
Javier Guallart, Universitat de València for this image Heptranchias perlo(BONNATERRE, 1788) (immature, female, Ibiza Channel)
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:
NISHIMATSU, K. & UJIHARA, A. (2019) A New Deep-Sea Shark Scymnodalatias kazenobon (Squaliformes, Somniosidae) from the Miocene Yatsuo Group in Central Japan. Paleontological Research, 23 (1): 23-29
MAO, Y. & MA, Q. & FENG, Q. (2013) Discovery of Fish Microremains in the Gufeng Formation at the Luojiaba Section from Jianshi, West Hubei. Acta Micropalaeontologica Sinica, 30 (2): 175–183
MENDIOLA, C. & MARTINEZ, J. (2003) La ictiofauna fósil (Chondrichthyes, Euselachii) del Mesozoico y Cenozoico de España. Revista de la Societat Paleontológica d'Elx, 9: 1–103
MENDIOLA, C. (2004) Primera cita española del género Ptychodus AGASSIZ 1839 (Chondrichthyes, Euselachii). Revista de la Societat Paleontológica d'Elx, 13: 1–14
MENDIOLA, C. & LÓPEZ, A. (2005) La ictiofauna fósil (Chondrichthyes, Euselachii) del Serravalliense de Alicante (Sureste de España). Revista de la Societat Paleontológica d'Elx, 14: 1–51
BERG, L.S. (1937) A classification of fish-like vertebrates. Bull. Acad. Sci. URSS, Cl. Sci. math. Natur. 1937: 1277–1280. [In English with Russ. Summ.]
Please support www.shark-references.com and send missing papers (not listed papers or papers without the info-symbol) to firstname.lastname@example.org or email@example.com
Save the date! 25. - 29. March 2019
The Mexican Society of Cartilaginous Fishes A.C., in coordination with the Planetarium of Playa del Carmen SAYAB, invites to participate in the First Latin American Conference of Sharks, Rays and Chimaeras, and the VIII National Symposium of Sharks and Rays.
5th International Whale Shark Conference (IWSC5) from 28-31 May 2019
From 28-31 May 2019, the town of Exmouth in the Ningaloo Coast World Heritage Area will welcome delegates to the 5th International Whale Shark Conference (IWSC5), a meeting of the world’s leading whale shark scientists, conservationists, natural resource managers and tourism managers. This is the fifth such conference to be held, following on from the successful IWSC4 held in Doha, Qatar in 2016. This meeting is timed to showcase Ningaloo’s world’s best practice whale shark management program and will follow the Ningaloo Whaleshark Festival, an annual community event that celebrates these magnificent animals.
IWSC5 will bring together local scientists, researchers and postgraduate students to interact with international colleagues and collaborators to explore all aspects of whale shark biology and ecology and how this can translate to direct, on-ground conservation efforts. Delegates from around the world will be treated to four days of presentations, workshops, social functions and experiencing the world renowned Ningaloo whale shark tourism industry to forge new relationships and collaborations and debate ideas.
A core focus of IWSC5 will be bringing together end users of the science being presented, such as tourism managers, marine park managers and conservation groups. This will improve the uptake and application of research and help develop collaborations between research scientists and managers and industry.
For further information contact firstname.lastname@example.org. The webpage is under construction, please add to your favourites www.iwsc5.info
THE ANNOUNCEMENT OF XVI EUROPEAN CONGRESS OF ICHTHYOLOGY
We invite you to attend the XVI European Congress of Ichthyology, to be held in Lausanne, Switzerland on 2-6 September 2019. The scientific program will include sessions and symposia on taxonomy, phylogeny, anatomy, ecology, conservation, ethology, life history and other aspects of fish biology. Participants are encouraged to make oral and/or poster presentations. Ichthyologists wishing to organize a symposium on a specific topic are ecouraged to contact the organizers.
ORGANIZED BY: European Ichthyological Society
BOARD: Dr. Ivana Buj (president), University of Zagreb, Croatia
Dr. Jörg Bohlen, Institute of Animal Physiology and Genetics, Czech Republic
Dr. Alberto Teodorico Correia, University of Porto, Portugal
Dr. Maurice Kottelat, Delémont, Switzerland
Dr. Lukas Kalous, Czech University of Life Sciences, Prague, Czech Republic
Dr. Lukas Rüber, Natural History Museum, Bern, Switzerland
HEAD OF THE ORGANIZING COMMITTEE: Dr. Maurice Kottelat
LOCAL ORGANIZING COMMITTEE will be announced soon.
WEB SITE: http://ichthyology.eu/congresses/actual-congresses/
CONTACT: email@example.com (for administrative issues, registration etc.),
firstname.lastname@example.org (for technical and local issues, etc.)
CONFERENCE VENUE: All conference activities will be held at the Aquatis Hotel and in
the facilities of the Aquatis Aquarium, both situated in Lausanne, Switzerland. AquatisbAquarium is the largest freshwater aquarium and vivarium in Europe. Lausanne is situated on the shore of Lake Geneva and is recognized as the home of the international sport, hosting the International Olympic Committee, but, in September 2019, it will be the meeting point of European and world ichthyologists.
SOCIAL PROGRAMME: to be announced later
CONFERENCE FEE: will be included in the Second announcement
December 2018 – Second announcement released
1st February – registration and abstract submission opens
30th April – abstract submission closes
31st May – deadline for registration
30th June – deadline for the late registration
Looking forward to meeting you in Lausanne!
|TAXONOMIC NEWS/ NEW SPECIES
no news this month!
GATES, T.A. & GORSCAK, E. & MAKOVICKY, P.J. (2019): New sharks and other chondrichthyans from the latest Maastrichtian (Late Cretaceous) of North America. Journal of Paleontology, in press
New genus: Galagadon
New species: Galagadon nordquistae
Abstract: Cretaceous aquatic ecosystems were amazingly diverse, containing most clades of extant aquatic vertebrates as well as an array of sharks and rays not present today. Here we report on the chondrichthyan fauna from the late Maastrichtian site that yielded the Tyrannosaurus rexskeleton FMNH PF 2081 (“SUE”). Significant among the recovered fauna is an unidentified species of carcharhinid shark that adds to the fossil record of this family in the Cretaceous, aligning with estimates from molecular evidence of clade originations. Additionally, a new orectolobiform shark, here named Galagadon nordquistae n. gen. n. sp., is diagnosed on the basis on several autapomorphies from over two-dozen teeth. Common chondrichthyan species found at the “SUE” locality include Lonchidion selachos and Myledaphus pustulosus. Two phylogenetic analyses (Maximum Parsimony and Bayesian Inference) based on twelve original dental character traits combined with 136 morphological traits from a prior study of 28 fossil and extant taxa, posited Galagadon n. gen. in two distinct positions: as part of a clade inclusive of the fossil species Cretorectolobus olsoni and Cederstroemia triangulata plus extant orectolobids from the Maximum Parsimony analysis; and as the sister taxon to all extant hemiscyllids from the Bayesian Inference. Model-based biogeographical reconstructions based on both optimal trees suggest rapid island hopping-style dispersal from the Western Pacific to the Western Interior Seaway of North America where Galagadon n. gen. lived. Alternatively, the next preferred model posits a broader, near-global distribution of Orectolobiformes with Galagadonn. gen. dispersing into its geographic position from this large ancestral range.
NISHIMATSU, K. & UJIHARA, A. (2019): A New Deep-Sea Shark Scymnodalatias kazenobon (Squaliformes, Somniosidae) from the Miocene Yatsuo Group in Central Japan. Paleontological Research, 23 (1): 23-29
New species: Scymnodalatias kazenobon
Abstract: A new deep-sea shark of the genus Scymnodalatias (Squaliformes, Somniosidae), S. kazenobon sp. nov., is described from the middle Miocene Yatsuo Group in Central Japan. This is the first fossil record of the genus Scymnodalatias from the Miocene strata and its first occurrence in the Pacific region. This discovery seems to indicate that major distributional changes occurred in the Pacific region sometime during the late Cenozoic era.
COLEMAN, G.M. & BEVERIDGE, I. & CAMPBELL, R.A. (2018): New species of Rhinebothrium Linton, 1890 (Cestoda: Rhinebothriidea) parasitic in Australian stingrays (Elasmobranchii: Batoidea). Systematic Parasitology, in press
New species: Rhinebothrium dasyatidis, Rhinebothrium bunburyense, Rhinebothrium vandiemeni, Rhinebothrium fluviorum, Rhinebothrium urolophi, Rhinebothrium nickoli, Rhinebothrium fungiforme
Abstract: Seven new species of the cestode genus Rhinebothrium Linton, 1890 are reported from the spiral intestines of batoid elasmobranchs from the coasts of Australia. The new species are: Rhinebothrium dasyatidis n. sp. from the smooth stingray Bathytoshia brevicaudata(Hutton) from Spencer Gulf, South Australia; Rhinebothrium bunburyense n. sp. from the southern eagle ray, Myliobatis tenuicaudatus Hector from off Bunbury, Western Australia; Rhinebothrium vandiemeni n. sp. from the reticulate whipray, Himantura australis Last, Naylor & Manjaji-Matsumoto from off Cape van Diemen, Northern Territory; Rhinebothrium fluviorum n. sp. from the estuary stingray, Hemitrygon fluviorum (Ogilby) from Moreton Bay, Queensland; Rhinebothrium urolophi n. sp. from the wide stingaree Urolophus expansusMcCulloch from off Beachport, South Australia; Rhinebothrium nickoli n. sp. from the brown whipray Maculabatis toshi (Whitley) and the reticulate whipray, Himantura australis Last, Naylor & Manjaji-Matsumoto, from Nickol Bay, Western Australia and from the white-spotted guitarfish Rhynchobatus australiae (Whitley) from off Broome, Western Australia and Rhinebothrium fungiforme n. sp. from the estuary stingray, Hemitrygon fluviorum (Ogilby) from Fog Bay in the Northern Territory.
SCHAEFFNER, B.C. (2018): Hispidorhynchus styracurae n. sp. (Trypanorhyncha: Eutetrarhynchidae) From the Chupare Stingray, Styracura schmardae (Werner), from the Caribbean Sea, Including New Records of Oncomegas wageneri (Linton, 1890). Journal of Parasitology, 104 (6): 685-696
New species: Hispidorhynchus styracurae
Abstract: Species of the eutetrarhynchid genus Hispidorhynchus Schaeffner and Beveridge, 2012 possess an uncinate macrohook on the bothrial surface of the basal swelling of each tentacle. This unique feature of the oncotaxy is only shared with the closely related genus Oncomegas Dollfus, 1929. A new species of Hispidorhynchus is described from specimens infecting Styracura schmardae (Werner, 1904) (Potamotrygonidae) from the western Caribbean Sea off the coast of Belize and Panama. Hispidorhynchus styracurae n. sp. differs from its 3 congeners in the possession of smaller and narrower bulbs, fewer principle hooks in the metabasal armature, size of the macrohook, and different scolex proportions. Scanning electron microscopy reveals new information on the microthrix morphology of the genus. A diagnostic key for the differentiation of species of Hispidorhynchus is provided. In addition, new host and locality records are reported for Oncomegas wageneri (Linton, 1890) Dollfus, 1929, collected from Hypanus guttatus (Bloch and Schneider, 1801) (Dasyatidae) off the coast of Maceió, Alagoas (Brazil). This considerably expands the geographical distribution of this species in the western Atlantic Ocean.
Latest Research Articles
BAKHOUM, S. (2019) Fish Assemblages in Surf Zone of the Egyptian Mediterranean Coast off Alexandria. Turkish Journal of Fisheries and Aquatic Sciences, 19 (4): 351 362 http://dx.doi.org/10.4194/1303 2712 v19_4_09
BORNATOWSKI, H. & HUSSEY, N.E. & SAMPAIO, C.L.S. & BARRETO, R.R.P. (2019) Geographic bias in the media reporting of aquatic versus terrestrial human predator conflicts and its conservation implications. Perspectives in Ecology and Conservation, in press http://dx.doi.org/10.1016/j.pecon.2018.12.004
BRACCINI, J.M. & WALTRICK, D. (2019) Species specific at vessel mortality of sharks and rays captured by demersal longlines. Marine Policy, 99: 94 98 http://dx.doi.org/10.1016/j.marpol.2018.10.033
BROWN, J. & BEARD, A. & CLINGHAM, E. & FRICKE, R. & HENRY, L. & WIRTZ, P. (2019) The fishes of St Helena Island, central Atlantic Ocean new records and an annotated check list. Zootaxa, 4543 (2): 151 194 http://dx.doi.org/10.11646/zootaxa.4543.2.1
BUTLER, J.R.A. & BUSILACCHI, S. & SKEWES, T. (2019) How resilient is the Torres Strait Treaty (Australia and Papua New Guinea) to global change? A fisheries governance perspective. Environmental Science & Policy, 91: 17 26 http://dx.doi.org/10.1016/j.envsci.2018.10.005
DUCHATELET, L. & CLAES, J.M. & MALLEFET, J. (2019) Embryonic expression of encephalopsin supports bioluminescence perception in lanternshark photophores. Marine Biology, 166: 21 http://dx.doi.org/10.1007/s00227 019 3473 9
DZYUBA, V. & NINHAUS SILVEIRA, A. & KAHANEC, M. & VERISSIMO SILVEIRA, R. & RODINA, M. & HOLT, W.V. & DZYUBA, B. (2019) Sperm motility in ocellate river stingrays: evidence for post testicular sperm maturation and capacitation in Chondrichthyes. Journal of Zoology, 307 (1): 9 16 http://dx.doi.org/10.1111/jzo.12610
ESCALLE, L. & GAERTNER, D. & CHAVANCE, P. & MURUA, H. & SIMIER, M. & PASCUAL ALAYON, P.J. & MENARD, F. & RUIZ, J. & ABASCAL, F. & MERIGOT, B. (2019) Catch and bycatch captured by tropical tuna purse seine fishery in whale and whale shark associated sets: comparison with free school and FAD sets. Biodiversity and Conservation, 28 (2): 467 499 http://dx.doi.org/10.1007/s10531 018 1672 1
FAUCONNET, L. & PHAM, C.K. & CANHA, A. & AFONSO, P. & DIOGO, H. & MACHETE, M. & SILVA, H.M. & VANDEPERRE, F. & MORATO, T. (2019) An overview of fisheries discards in the Azores. Fisheries Research, 209: 230 241 http://dx.doi.org/10.1016/j.fishres.2018.10.001
FERRANDO, S. & AMAROLI, A. & GALLUS, L. & AICARDI, S. & DI BLASI, D. & VACCHI, M. & GHIGLIOTTI, L. (2019) The Olfactory Organ of Torpedo marmorata Risso, 1810: Morphology, Histology, and NOS like Immunoreactivity. Bulletin of Environmental and Life Sciences, 1:
FILIZ, H. (2019) Year Round Aggregation of Sandbar Shark, Carcharhinus plumbeus (Nardo, 1827), in Boncuk Cove in the southern Aegean Sea, Turkey (Carcharhiniformes: Carcharhinidae). Zoology in the Middle East, 65 (1): 35 39 http://dx.doi.org/10.1080/09397140.2018.1540148
FOTEDAR, S. & LUKEHURST, S. & JACKSON, G. & SNOW, M. (2019) Molecular tools for identification of shark species involved in depredation incidents in Western Australian fisheries. Plos One, 14 (1): e0210500 http://dx.doi.org/10.1371/journal.pone.0210500
GUALLART, J. & MOREY, G. &BARTOLÍ, A. (2019) New record of a sharpnose sevengill shark Heptranchias perlo (Elasmobranchii, Hexanchidae) from the Balearic Sea, western Mediterranean Sea. Journal of Fish Biology, in press j http://dx.doi.org/10.1111/jfb.13905
HELLBERG, R.S. & ISAACS, R.B. & HERNANDEZ, E.L. (2019) Identification of shark species in commercial products using DNA barcoding. Fisheries Research, 210: 81 88 http://dx.doi.org/10.1016/j.fishres.2018.10.010
HOBBS, C.A.D. & POTTS, R.W.A. & WALSH, M.B. & USHER, J. & GRIFFITHS, A.M. (2019) Using DNA Barcoding to Investigate Patterns of Species Utilisation in UK Shark Products Reveals Threatened Species on Sale Scientific Reports, 9: 1028
HUTCHINSON, M. & COFFEY, D.M. & HOLLAND, K. & ITANO, D. & LEROY, B. & KOHIN, S. & VETTER, R. & WILLIAMS, A.J. & WREN, J. (2019) Movements and habitat use of juvenile silky sharks in the Pacific Ocean inform conservation strategies. Fisheries Research, 210: 131 142 http://dx.doi.org/10.1016/j.fishres.2018.10.016
JUNGE, C. & DONNELLAN, S.C. & HUVENEERS, C. & BRADSHAW, C.J.A. & SIMON, A. & DREW, M. & DUFFY, C. & JOHNSON, G. & CLIFF, G. & BRACCINI, M. & CUTMORE, S.C. & BUTCHER, P. & MCAULEY, R. & PEDDEMORS, V. & ROGERS, P. & GILLANDERS, B.M. (2019) Comparative population genomics confirms little population structure in two commercially targeted carcharhinid sharks. Marine Biology, 166 (2): 16 http://dx.doi.org/10.1007/s00227 018 3454 4
KHALAF, M.A. & MA’AYTA, S.S. & WAHSHA, M.A. & MANASRAH, R.S. & AL NAJJAR, T.H. (2019) Community structure of the deep sea fishes in the northern Gulf of Aqaba, Red Sea (Osteichthyes and Chondrichthyes). Zoology in the Middle East, 65 (1): 40 50 http://dx.doi.org/10.1080/09397140.2018.1552347
LAURRABAQUIO A, N.S. & ISLAS VILLANUEVA, V. & ADAMS, D.H. & URIBE ALCOCER, M. & ALVARADO BREMER, J.R. & DIAZ JAIMES, P. (2019) Genetic evidence for regional philopatry of the Bull Shark (Carcharhinus leucas), to nursery areas in estuaries of the Gulf of Mexico and western North Atlantic ocean. Fisheries Research, 209: 67 74 http://dx.doi.org/10.1016/j.fishres.2018.09.013
LENNERT CODY, C.E. & CLARKE, S.C. & AIRES DA SILVA, A. & MAUNDER, M.N. & FRANKS, P.J.S. & ROMAN, M. & MILLER, A.J. & MINAMI, M. (2019) The importance of environment and life stage on interpretation of silky shark relative abundance indices for the equatorial Pacific Ocean. Fisheries Oceanography, 28 (1): 43 53 http://dx.doi.org/10.1111/fog.12385
PEPIN NEFF, C. & WYNTER, T. (2019) Save the sharks: reevaluating and (re)valuing feared predators. Human Dimensions of Wildlife, 24 (1): 87 94 http://dx.doi.org/10.1080/10871209.2018.1539887
PHILLIPS, B.T. & SHIPLEY, O.N. & HALVORSEN, J. & STERNLICHT, J.K. & GALLAGHER, A.J. (2019) First in situ observations of the sharpnose sevengill shark (Heptranchias perlo), from the Tongue of the Ocean, Bahamas. http://dx.doi.org/10.5281/zenodo.2539708
PIMIENTO, C. & CANTALAPIEDRA, J.L. & SHIMADA, K. & FIELD, D.J. & SMAERS, J.B. (2019) Evolutionary pathways toward gigantism in sharks and rays. Evolution, in press http://dx.doi.org/10.1111/evo.13680
SPAET, J.L.Y. (2019) Red Sea Sharks—Biology, Fisheries and Conservation. In: Oceanographic and Biological Aspects of the Red Sea, Rasul, Najeeb M.A., Stewart, Ian (Eds.), Chapter 15: 267 280 http://dx.doi.org/10.1007/978 3 319 99417 8_15
STAT, M. & JOHN, J. & DIBATTISTA, J.D. & NEWMAN, S.J. & BUNCE, M. & HARVEY, E.S. (2019) Combined use of eDNA metabarcoding and video surveillance for the assessment of fish biodiversity. Conservation Biology, 33 (1): 196 205 http://dx.doi.org/10.1111/cobi.13183
TAYLOR, J. & MCLEAN, L. & KORNER, A. & GLOZIER, N. (2019) Direct and indirect psychological impacts of shark bite events. Australian and New Zealand Journal of Psychiatry, 53 (1): 27 36 http://dx.doi.org/10.1177/0004867418808899
WHITEHEAD, D.A. & BECERRIL‐GARCÍA, E.E. & PETATÁN‐RAMÍREZ, D. & VÁZQUEZ‐HAIKIN, A. & GONZÁLEZ‐ARMAS, R. & GALVÁN‐MAGAÑA, F. (2019) Whale shark Rhincodon typus strandings in the Gulf of California, Mexico. Journal of Fish Biology, in press http://dx.doi.org/10.1111/jfb.13845
WOSNICK, N. & NIELLA, Y.V. & NAVA, C.A. & MONTEIRO FILHO, E.L.A. & FREIRE, C.A. & HAMMERSCHLAG, N. (2019) Multispecies thermal dynamics of air exposed ectothermic sharks and its implications for fisheries conservation. Journal of Experimental Marine Biology and Ecology, 513: 1 9 http://dx.doi.org/10.1016/j.jembe.2019.01.002
AMALFITANO, J. & GIUSBERTI, L. & FORNACIARI, E. & VECCHIA, F.M.D. & LUCIANI, V. & KRIWET, J. & CARNEVALE, G. (2019) Large deadfalls of the ʻginsuʼ shark Cretoxyrhina mantelli (Agassiz, 1835) (Neoselachii, Lamniformes) from the Upper Cretaceous of northeastern Italy. Cretaceous Research, in press http://dx.doi.org/10.1016/j.cretres.2019.02.003
BRACHER, H. & UNGER, E. & JOST, J. & LÜDI, B. & POLLERSPÖCK, J. (2019) Haie und Rochen der Molasse. www.molasse-haie-rochen.de, accesed 01.02.2019
CLACK, J.A. & BENNETT, C.E. & DAVIES, S.J. & SCOTT, A.C. & SHERWIN, J.E. & SMITHSON, T.R. (2019) A Tournaisian (earliest Carboniferous) conglomerate preserved non marine faunal assemblage and its environmental and sedimentological context. Peerj, 6: e5972 http://dx.doi.org/10.7717/perj.5972
DENG, T. & WANG, X. & WU, F. & WANG, Y. & LI, Q. & WANG, S. & HOU, S. (2019) Review: Implications of vertebrate fossils for paleo elevations of the Tibetan Plateau. Global and Planetary Change, 174: 58–69 http://dx.doi.org/10.1016/j.gloplacha.2019.01.005
GATES, T.A. & GORSCAK, E. & MAKOVICKY, P.J. (2019) New sharks and other chondrichthyans from the latest Maastrichtian (Late Cretaceous) of North America. Journal of Paleontology, in press http://dx.doi.org/10.1017/jpa.2018.92
CITTON, P. & FABBI, S. & CIPRIANI, A. & JANSEN, M. & ROMANO, M. (2019) Hybodont dentition from the Upper Jurassic of Monte Nerone Pelagic Carbonate Platform (Umbria Marche Apennine, Italy) and its ecological implications. Geological Journal, 54 (1): 278 290 http://dx.doi.org/10.1002/gj.3174
NISHIMATSU, K. & UJIHARA, A. (2019) A New Deep Sea Shark Scymnodalatias kazenobon (Squaliformes, Somniosidae) from the Miocene Yatsuo Group in Central Japan. Paleontological Research, 23 (1): 23 29 http://dx.doi.org/10.2517/2018PR006
DALY, R. & KEATING DALY, C.A. & HOUNSLOW, J.L. & BYRNES, E.E. (2019) New Host Record for the Marine Leech, Pontobdella macrothela (Hirudinida: Piscicolidae) from Sicklefin Lemon Sharks, Negaprion acutidens (Chondrichthyes: Carcharinidae) in St. Joseph Atoll, Republic of Seychelles, West Indian Ocean. Comparative Parasitology, 86 (1): 58 61 http://dx.doi.org/10.1654/1525 2647 86.1.58
- Date: January 16, 2019
- Source: University of Tokyo
- Summary: Whale sharks, the world's largest fish, likely endure periods of starvation and may eat more plants than previously thought, according to the first results of a new health check. Ocean scientists now have a powerful, simple tool to discover the diets, migrations, and conservation needs of this endangered species.
Freshwater shark lived in South Dakota, had teeth shaped like “Galaga” spaceships
- Date: January 21, 2019
Source: North Carolina State University
- Summary: The world of the dinosaurs just got a bit more bizarre with a newly discovered species of freshwater shark whose tiny teeth resemble the alien ships from the popular 1980s video game Galaga.
- Date: January 24, 2019
- Source: Swansea University
- Summary: Have you ever wondered why the Megalodon shark became to be so big? Or wondered why some other sharks are much smaller?
- Date: January 31, 2019
- Source: University of Exeter
- Summary: Endangered species of hammerhead and dogfish are among the sharks being sold as food in the UK, researchers have revealed.