NEWSLETTER 05/2018 07.05.2018

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

Pollerspöck, J. & Straube, N. 2018, Bibliography database of living/fossil sharks, rays and chimaeras (Chondrichthyes: Elasmobranchii, Holocephali), www.shark-references.com, World Wide Web electronic publication, Version 2018

images by Jürgen Pollerspöck

POLLERSPÖCK, J. & FLAMMENSBECK, C. & STRAUBE, N. (2018):Palaeocentroscymnus (Chondrichthyes: Somniosidae), a new sleeper shark genus from Miocene deposits of Austria (Europe). Paläontologische Zeitschrift, in press
New genus: Palaeocentroscymnus
Abstract: Fossil upper and lower squaliform shark teeth from the upper Austrian marine Molasse (Paratethys, Upper Egerian, Aquitanian) were collected. For testing the phylogenetic signal of 31 reviewed dental characters of both fossil and extant etmopterids and somniosids, we perform phylogenetic analyses using both parsimony and maximum likelihood approaches. Results indicate a close phylogenetic relationship of teeth collected for this study with the extant somniosid genus Centroscymnus. A number of preliminary or un-identified fossil teeth published in other studies were included in our analyses and cluster along with the fossils described herein suggesting to be synonym. Our results further allow for a revision of the type species of Paraetmopterus horvathi Underwood and Schlögl, 2013 and the description of Palaeocentroscymnus gen. nov.

If you would like to read our new paper, you can find a full-text view-only version (via Springer Nature SharedIt initiative) here: http://rdcu.be/JakZ

or send a request via researchgate or email to (nicolas.straube@shark-references.com) or Jürgen (juergen.pollerspoeck@shark-references.com)!


New project "Haie und Rochen der Molasse" (in German) in cooperation with shark-references.

On this website you will find information about fossil elasmobranch teeth (sharks and rays/skates) of the north-alpine Molasse Basin such as characters for identification, geographical and stratigraphic distribution, literature and much more useful information on all described species.


Would you like to become a shark-reference partner? Please contanct us per E-mail!


Partner in Google-Maps




New Images

Many thanks to the following people for providing images:

Frederik H. Mollen (Elasmobranch Research Belgium) for the images of Myliobatis goodei GARMAN, 1885 (ERB 0533)

Pradip Patade, India for images of Mobula mobular (BONNATERRE, 1788)

L. Ignacio Contreras for images of a young male Schroederichthys chilensis(GUICHENOT, 1848)

Johann Mourier, Shark research & Behavioural Ecology for some images of Negaprion acutidens (RÜPPELL, 1837)

Claudio Barria for a image of a female Scyliorhinus canicula (LINNAEUS, 1758), captured in the Gulf of Roses, Spain in 120 m depth

Jim Greenfield for a image of Rhynchobatus australiae WHITLEY, 1939 (Reethi Beach, Maldives)

Rajan Kumar, Annam Pavan-Kumar and Philippe Borsa for the images of Neotrygon indica PAVAN-KUMAR, KUMAR, PITALE, SHEN & BORSA, 2018

Fahmi & David Ebert for the image of the holotype of Parmaturus nigripalatum FAHMI & EBERT, 2018


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.

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



Upcoming Meetings:

Please inform us about new upcoming meetings!


II Joint Congress on Evolutionary Biology – Montpellier 2018

ESEB is delighted to welcome you to the Second Joint Congress on Evolutionary Biology. Joint Congresses take place every six years and bring together four of the world's largest academic societies in the field of evolutionary biology: the European Society for Evolutionary Biology, the American Society of Naturalists, the Society for the Study of Evolution and the Society of Systematic Biologists. The first joint congress was in Ottawa, Canada in 2012. The current (i.e. second) will be held in Montpellier, France, on August 19-22 2018.




João Pessoa, 3-8 June, 2018
The Sharks International Conference is the first truly international event devoted to elasmobranchs, and its first two editions were held respectively in Cairns, Australia in 2010 and Durban, South Africa in 2014. The city of João Pessoa was chosen as the venue for this important event, which will also congregate members of the Brazilian Society for the Study of Elasmobranchs (SBEEL) and the American Elasmobranch Society (AES) in 2018.
João Pessoa, founded in August 5, 1585, is the capital of Paraíba state, northeastern Brazil. It is located in the easternmost portion of the Americas, where a cape named Ponta do Seixas enters the Atlantic Ocean. Its coastline extends for 24 kilometers, with nine beaches. The downtown area and neighbouring municipalities present many historical and tourist sites.
More information and an internet site of the event will soon be available. We hope to have many participants from all over the world.

The website and registration details for the OCS 2018 meeting next February are now online at http://www.oceaniasharks.org.au/conference-2018
The 2018 conference is going to be a little different. It’s going to be at Moreton Bay Research Station which is where in the early 2000’s a group of students started their own chondrichthyan focused workshops and seminars to provide a supportive and inclusive forum for presenting shark and ray research. Those events were part of what became the OCS in 2005. In 2018, we’re returning to where some of those early meetings were held, and incidentally, to a beautiful location on the coast with opportunities to dive with manta rays and leopard sharks following the conference. Research station based meetings have a different feel to the normal city or campus based meetings, and Stradbroke Island really is a beautiful location.
Registration and abstract submission are via the online form. Upon registering you should receive a PayPal receipt email as well as an acknowledgement from the conference website. If you encounter any problems with online registration or abstract submission, please contact Jon Smart (Jonathan.Smart@sa.gov.au).   


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 iwsc5@dbca.wa.gov.au. The webpage is under construction, please add to your favourites www.iwsc5.info

Extant Chondrichthyes:

FAHMI & EBERT, D.A. (2018): Parmaturus nigripalatum n. sp., a new species of deep-sea catshark (Chondrichthyes: Carcharhiniformes: Scyliorhinidae) from Indonesia. Zootaxa, 4413 (3): 531–540
New species: Parmaturus nigripalatum
AbstractParmaturus nigripalatum, a new species of catshark of the genus Parmaturus is described from a single specimen collected from a deep-water shark longliner operating in south Sumbawa waters, Indonesia. This new species is distinguished from its closest geographic congener P. lanatus by having prominent enlarged caudal crests, well-developed labial furrows with the uppers and lowers of equal lengths, mouth roof blackish with dark pores, first dorsal fin origin more posteriorly positioned on body trunk, and much lower tooth counts than all other known Parmaturus species. This is the second Parmaturus species recorded from Indonesian waters.

PAVAN-KUMAR, A. & KUMAR, R. & PITALE, P. & SHEN, K.N. & BORSA, P. (2018):Neotrygon indica sp nov., the Indian Ocean blue-spotted maskray (Myliobatoidei, Dasyatidae). Comptes Rendus Biologies, 341 (2): 120-130
New species: Neotrygon indica
Abstract: The blue-spotted maskray, previously N. kuhlii, consists of up to eleven lineages representing separate species. Nine of these species (N. australiae, N. bobwardi, N. caeruleopunctata, N. malaccensis, N. moluccensis, N. orientale, N. vali, N. varidens, N. westpapuensis) have already been formally described and two (Indian Ocean maskray and Ryukyu maskray) remain undescribed. Here, the Indian Ocean maskray is described as a new species, Neotrygon indica sp. nov. Specimens of the new species were generally characterized on their dorsal side by a moderately large number of small ocellated blue spots, a low number of medium-sized ocellated blue spots, the absence of large ocellated blue spots, a high number of dark speckles, a few dark spots, and a conspicuous occipital mark. The new species formed a distinct haplogroup in the tree built from concatenated nucleotide sequences at the CO1 and cytochrome b loci. A diagnosis based on colour patterns and nucleotide sequences at the CO1 and cytochrome b loci is proposed. The distribution of N. indica sp. nov. includes the Indian coast of the Bay of Bengal, the Indian coast of the Laccadives Sea, and Tanzania. Considerable sampling effort remains necessary for an in-depth investigation of the phylogeographic structure of the Indian Ocean maskray.

Extinct Chondrichthyes:

no news this month!

CHERO, J.D. & CRUCES, C.L. & SÁEZ, G. & CAMARGO, A.C.A. & SANTOS, C.P. & LUQUE, J.L. (2018): Hypanocotyle bullardi n. gen. n. sp. (Monogenea: Hexabothriidae) from gill of the diamond stingray Hypanus dipterurus (Jordan et Gilbert) (Myliobatiformes: Dasyatidae) in the Southeastern Pacific Ocean off Peru. Parasitology International, 67 (4): 425–430
New genus: Hypanocotyle
New species: Hypanocotyle bullardi
Abstract: A new genus and species of monogenean belonging to Hexabothriidae, Hypanocotyle bullardi n. gen. n. sp., is described based on specimens collected from the gill filaments of the diamond stingray, Hypanus dipterurus (Jordan et Gilbert) (Myliobatiformes: Dasyatidae), a demersal chondrichthyan collected off the coast of Callao, Peru. Hypanocotyle n. gen. has the following combination of diagnostic features that differentiate it from other hexabothriid genera: haptor symmetrical; vasa efferentia having proximal (narrow, with thin glandular wall) and distal (expanded, interlaced, with thick glandular wall) portions, joining medially to form vas deferens; vas deferens having proximal (expanded, sinuous, with thick glandular wall) and distal (narrow, strongly sinuous, with thin glandular wall) portions; male copulatory organ unarmed, proximal portion slightly sinuous and tube-like, distal portion funnel-shaped; prostatic glands present, distributed around of the MCO; seminal receptacle present; ootype lacking longitudinal rows of large cells (no oötype côtelé); vaginae parallel, with well-differentiated proximal (glandular, narrow, tube-like, slightly sinuous) and distal (musculoglandular, convoluted) portions; gland cells surrounding the vaginal duct along the entire length of distal portion, densely clustered in middle portion; uterine eggs with 2 elongate filaments. Phylogenetic reconstructions by maximum-likelihood method, based on newly obtained partial 18S and 28S sequences, shows that Hbullardi n. gen. is included within the family Hexabothriidae, order Diclybothriidea. This is the second hexabothriid genus recorded from a diamond stingray (Dasyatidae), and the fourth hexabothriid species recorded from Peru. A key to hexabothriid genera is provided.

NACARI, L.A. & SEPULVEDA, F.A. & ESCRIBANO, R. & OLIVA, M.E. (2018):Acanthocotyle gurgesiella n. sp. (Monogenea: Acanthocotylidae) from the deep-sea skate Gurgesiella furvescens (Rajidae) in the south-eastern Pacific. Journal of Helminthology, 92 (2): 223-227
New species: Acanthocotyle gurgesiella
Abstract: Little is known about the diversity of parasites of the deep-sea fish of the world's oceans. Here, a new species of monogenean parasite of the deep-sea skate Gurgesiella furvescens is described. Specimens of parasites were obtained from the skin of two specimens of the dusky finless skate, G. furvescens (Rajidae), in the vicinity of Valparaiso (33 degrees S, 72 degrees W), central Chile, from midwater trawl fishing at depths of 350-450 m. Both morphological and molecular analyses were conducted to provide a full description of the new species, named Acanthocotyle gurgesiella. For the molecular analyses, nuclear large subunit (LSU) rDNA and the mitochondrial gene cytochrome c oxidase 1 (COI) were used. From the morphological analysis and a comparison with the known species of the genus, A. gurgesiella can be identified by a combination of morphological characteristics, including the number of testes, number of radial rows of sclerites in the pseudohaptor, aperture of the genital pore and shape of the vitelline follicles. The results from the DNA analysis indicated that A. gurgesiella has a genetic divergence of 3.2-3.7% (LSU rDNA gene) from A. urolophi, the only congener species for which molecular data are available.

BOXSHALL, G. (2018): The sea lice (Copepoda: Caligidae) of Moreton Bay (Queensland, Australia), with descriptions of thirteen new species. Zootaxa, 4398 (1): 1-172
New species: Caligus elasmobranchi, Pupulina keiri
Abstract: Fifty species of sea lice, members of the family Caligidae, were collected from the marine fishes of Moreton Bay, Queensland, during two workshops held in 2016. Only 21 of these species had previously been reported from Australian waters: of the remaining 29 species, 13 are new to science and another 16 are recorded from Australia for the first time. An illustrated differential diagnosis is presented for well known species; but for new or poorly known species a full description is provided. The 13 new species are: Anuretes amplus sp. nov. and A. amymichaelae sp. nov., both from Diagramma pictum (Thunberg, 1792); Caligus abigailae sp. nov. from Sphyraena obtusata Cuvier, 1829; C. elasmobranchi sp. nov. from Himantura uarnak (Gmelin, 1789), H. toshi Whitley, 1939, Dasyatis fluviorum Ogilby, 1908, Aetobatus ocellatus (Kuhl, 1823) and Pastinachus atrus (Macleay, 1883); C. hyporhamphi sp. nov. from Hyporhamphus quoyi(Valenciennes, 1847); C. nataliae sp. nov. from Herklotsichthys castelnaui(Ogilby, 1897) and Neoarius graeffei (Kner & Steindachner, 1867); C. neoaricolus sp. nov. and C. paranengai sp. nov. both from Neoarius graeffeiC. pseudorhombi sp. nov. from Pseudorhombus arsius (Hamilton, 1822); C. turbidus sp. nov. from Tripodichthys angustifrons (Hollard, 1854); C. upeneisp. nov. from Upeneus tragula Richardson, 1846; Lepeophtheirus robertaesp. nov. from Scarus ghobbhan Forsskål, 1775 and Pupulina keiri sp. nov. from Aetobatus ocellatus. The rare species Caligodes alatus Heegaard, 1945 is redescribed and transferred to the genus Caligus Müller, 1785, but requires a replacement name due to secondary homonymy: Caligus alepicolus nom. nov. is proposed. Similarly, Parapetalus spinosus Byrnes, 1986 is redescribed and transferred to the genus Caligus where it becomes a secondary homonym: the replacement name Caligus seriolicolus nom. nov. is proposed. Five large species-groups within the genus Caligus are recognised here on the basis of suites of morphological character states. They are based around the following species: C. bonito Wilson, 1905, C. confusus Pillai, 1961, C. diaphanus von Nordmann, 1832, C. macaroviGusev, 1951 and C. productus Dana, 1852. These species-groups can be used to navigate this relatively large genus, but their monophyletic status should not be assumed.

PLEASE send your new papers tojuergen.pollerspoeck@shark-references.comor nicolas.straube@shark-references.com   

Latest Research Articles

Extant Chondrichthyes:
ACUNA-MARRERO, D. & DE LA CRUZ-MODINO, R. & SMITH, A.N.H. & SALINAS-DE-LEON, P. & PAWLEY, M.D.M. & ANDERSON, M.J. (2018) Understanding human attitudes towards sharks to promote sustainable coexistence. Marine Policy, 91: 122-128 http://dx.doi.org/10.1016/j.marpol.2018.02.018
ACUÑA-MARRERO, D. & SMITH, A.N.H. & SALINAS-DE-LEÓN, P. & HARVEY, E.S. & PAWLEY, M.D.M. & ANDERSON, M.J. (2018) Spatial patterns of distribution and relative abundance of coastal shark species in the Galapagos Marine Reserve. Marine Ecology Progress Series, 593: 73-95 http://dx.doi.org/10.3354/meps12505
AMIN, R.W. & RITTER1, E.K. & BONELL, B.A. (2018) Shark Bite Rates Along the US Gulf Coast: A First Investigation. Environmental Sciences, 6 (1): 1 - 12 http://dx.doi.org/10.12988/es.2018.821
ARUNRUGSTICHAI, S. & TRUE, J.D. & WHITE, W.T. (2018) Catch composition and aspects of the biology of sharks caught by Thai commercial fisheries in the Andaman Sea. Journal of Fish Biology, in press http://dx.doi.org/10.1111/jfb.13605
BANGLEY, C.W. & PARAMORE, L. & DEDMAN, S. & RULIFSON, R.A. (2018) Delineation and mapping of coastal shark habitat within a shallow lagoonal estuary. PLoS ONE, 13 (4): e0195221 http://dx.doi.org/10.1371/journal.pone.0195221
BARASH, A. & PICKHOLTZ, R. & PICKHOLTZ, E. & BLAUSTEIN, L. & RILOV, G. (2018) Seasonal aggregations of sharks near coastal power plants in Israel: an emerging phenomenon. Marine Ecology Progress Series, 590: 145-154 http://dx.doi.org/10.3354/meps12478
BARTHOLOMEW, D.C. & MANGEL, J.C. & ALFARO-SHIGUETO, J. & PINGO, S. & JIMENEZ, A. & GODLEY, B.J. (2018) Remote electronic monitoring as a potential alternative to on-board observers in small-scale fisheries. Biological Conservation, 219: 35-45 http://dx.doi.org/10.1016/j.biocon.2018.01.003
BERNAL, D. & REID, J.P. & ROESSIG, J.M. & MATSUMOTO, S. & SEPULVEDA, C.A. & CECH, J.J. & GRAHAM, J.B. (2018) Temperature effects on the blood oxygen affinity in sharks. Fish Physiology and Biochemistry, in press http://dx.doi.org/10.1007/s10695-018-0484-2
BITON-PORSMOGUER, S. & BANARU, D. & BOUDOURESQUE, C.F. & DEKEYSER, I. & BOUCHOUCHA, M. & MARCO-MIRALLES, F. & LEBRETON, B. & GUILLOU, G. & HARMELIN-VIVIEN, M. (2018) Mercury in blue shark (Prionace glauca) and shortfin mako (Isurus oxyrinchus) from north-eastern Atlantic: Implication for fishery management. Marine Pollution Bulletin, 127: 131-138 http://dx.doi.org/10.1016/j.marpolbul.2017.12.006
BOND, M.E. & VALENTIN-ALBANESE, J. & BABCOCK, E.A. & HUSSEY, N.E. & HEITHAUS, M.R. & CHAPMAN, D.D. (2018) The trophic ecology of Caribbean reef sharks (Carcharhinus perezi) relative to other large teleost predators on an isolated coral atoll. Marine Biology, 165: 67 http://dx.doi.org/10.1007/s00227-018-3322-2
BONNICI, L. & BONELLO, J.J. & SCHEMBRI, P.J. (2018) Diet and trophic level of the longnose spurdog, Squalus blainville (Risso, 1826) in the 25-nautical mile Fisheries Management Zone around the Maltese Islands. Regional Studies in Marine Science, 19: 33-42 http://dx.doi.org/10.1016/j.rsma.2018.03.001
BRENA, P.F. & MOURIER, J. & PLANES, S. & CLUA, E.E. (2018) Concede or clash? Solitary sharks competing for food assess rivals to decide. Proceedings of the Royal Society B: Biological Sciences, 285 (1875): 20180006 http://dx.doi.org/10.1098/rspb.2018.0006
BREWSTER, L.R. & DALE, J.J. & GUTTRIDGE, T.L. & GRUBER, S.H. & HANSELL, A.C. & ELLIOTT, M. & COWX, I.G. & WHITNEY, N.M. & GLEISS, A.C. (2018) Development and application of a machine learning algorithm for classification of elasmobranch behaviour from accelerometry data. Marine Biology, 165 (4): 62 http://dx.doi.org/10.1007/s00227-018-3318-y
CARMO, W.P.D. & FAVARO, L.F. & COELHO, R. (2018) Age and growth of Zapteryx brevirostris (Elasmobranchii: Rhinobatidae) in southern Brazil. Neotropical Ichthyology, 16 (1): e170005 http://dx.doi.org/10.1590/1982-0224-20170005
CASELLE, J.E. & HAMILTON, S.L. & DAVIS, K. & THOMPSON, C.D.H. & TURCHIK, A. & JENKINSON, R. & SIMPSON, D. & SALA, E. (2018) First quantification of subtidal community structure at Tristan da Cunha Islands in the remote South Atlantic: From kelp forests to the deep sea. PLoS ONE, 13 (3): e0195167 http://dx.doi.org/10.1371/journal.pone.0195167
CASTRO, J. & ANLLO, T. & MEJUTO, J. & GARCIA, B. (2018) Ichnology applied to the study of Cookiecutter shark (Isistius brasiliensis) biogeography in the Gulf of Guinea. Environmental Biology of Fishes, 101 (4): 579-588 http://dx.doi.org/10.1007/s10641-018-0720-8
CRUZ-ACEVEDO, E. & TOLIMIERI, N. & AGUIRRE-VILLASEÑOR, H. (2018) Deep-sea fish assemblages (300-2100 m) in the eastern Pacific off northern Mexico. Marine Ecology Progress Series, 592: 225-242 http://dx.doi.org/10.3354/meps12502
ESTEVES, E. & LOURENCO, H. & ROSA, I. & ANIBAL, J. (2018) Physicochemical and Microbiological Changes in Dried Small-Spotted Catshark (Scyliorhynus canicula): Contributing to the Developing an Alternative Shark-Based Salted-Dried Seafood Product. Journal of Aquatic Food Product Technology, 27 (2): 176-184 http://dx.doi.org/10.1080/10498850.2017.1417339
FAHMI & EBERT, D.A. (2018) Parmaturus nigripalatum n. sp., a new species of deep-sea catshark (Chondrichthyes: Carcharhiniformes: Scyliorhinidae) from Indonesia. Zootaxa, 4413 (3): 531–540 http://dx.doi.org/10.11646/zootaxa.4413.3.7
FERRETTI, F. & CURNICK, D. & LIU, K.L. & ROMANOV, E.V. & BLOCK, B.A. (2018) Shark baselines and the conservation role of remote coral reef ecosystems. Science Advances, 4 (3): eaaq0333 http://dx.doi.org/10.1126/sciadv.aaq0333
FIELDS, A.T. & FISCHER, G.A. & SHEA, S.K.H. & ZHANG, H.R. & ABERCROMBIE, D.L. & FELDHEIM, K.A. & BABCOCK, E.A. & CHAPMAN, D.D. (2018) Species composition of the international shark fin trade assessed through a retail-market survey in Hong Kong. Conservation Biology, 32 (2): 376-389 http://dx.doi.org/10.1111/cobi.13043
FRIEDMAN, K. & GABRIEL, S. & ABE, O. & ADNAN NURUDDIN, A. & ALI, A. & BIDIN RAJA HASSAN, R. & CADRIN, S.X. & CORNISH, A. & DE MEULENAER, T. & DHARMADI & FAHMI & HUU TUAN ANH, L. & KACHELRIESS, D. & KISSOL, L. & KRAJANGDARA, T. & RAHMAN WAHAB, A. & TANOUE, W. & THARITH, C. & TORRES, F. & WANCHANA, W. & WIN, S. & YOKAWA, K. & YE, Y. (2018) Examining the impact of CITES listing of sharks and rays in Southeast Asian fisheries. Fish and Fisheries, in press http://dx.doi.org/10.1111/faf.12281
FUJINAMI, Y. & SEMBA, Y. & OHSHIMO, S. & TANAKA, S. (2018) Development of an alternative ageing technique for blue shark (Prionace glauca) using the vertebra. Journal of Applied Ichthyology, 34 (3): 590-600 http://dx.doi.org/10.1111/jai.13620
HANSON, J.M. (2018) Feeding Interactions between Fishes in a Coastal Ecosystem in the Southern Gulf of St. Lawrence, Atlantic Canada. Transactions of the American Fisheries Society, 147 (1): 61-78 http://dx.doi.org/10.1002/tafs.10021
HEARD, M. & ROGERS, P.J. & BRUCE, B.D. & HUMPHRIES, N.E. & HUVENEERS, C. (2018) Plasticity in the diel vertical movement of two pelagic predators (Prionace glauca and Alopias vulpinus) in the southeastern Indian Ocean. Fisheries Oceanography, 27 (3): 199-211 http://dx.doi.org/10.1111/fog.12245
HEUPEL, M.R. & LEDEE, E.J.I. & SIMPFENDORFER, C.A. (2018) Telemetry reveals spatial separation of co-occurring reef sharks. Marine Ecology Progress Series, 589: 179-192 http://dx.doi.org/10.3354/meps12423
JABADO, R.W. (2018) The fate of the most threatened order of elasmobranchs: Shark-like batoids (Rhinopristiformes) in the Arabian Sea and adjacent waters. Fisheries Research, 204: 448–457 http://dx.doi.org/10.1016/j.fishres.2018.03.022
JABADO, R.W. & KYNE, P.M. & NAZARETH, E. & SUTARIA, D.N. (2018) A rare contemporary record of the Critically Endangered Ganges shark Glyphis gangeticus. Journal of Fish Biology, in press http://dx.doi.org/10.1111/jfb.13619
JAUREGUIZAR, A.J. & ARGEMI, F. & TROBBIANI, G. & PALMA, E.D. & IRIGOYEN, A.J. (2018) Large-scale migration of a school shark, Galeorhinus galeus, in the Southwestern Atlantic. Neotropical Ichthyology, 16 (1): e170050 http://dx.doi.org/10.1590/1982-0224-20170050
KIM, M.R. & KWON, K. & JUNG, Y.K. & KANG, T.S. (2018) A rapid real-time PCR method to differentiate between mottled skate (Beringraja pulchra) and other skate and ray species. Food Chemistry, 255: 112-119 http://dx.doi.org/10.1016/j.foodchem.2018.02.056
KOLMANN, M.A. & GRUBBS, R.D. & HUBER, D.R. & FISHER, R. & LOVEJOY, N.R. & ERICKSON, G.M. (2018) Intraspecific variation in feeding mechanics and bite force in durophagous stingrays. Journal of Zoology, 304 (4): 225-234 http://dx.doi.org/10.1111/jzo.12530
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LAGADEC, R. & LANOIZELET, M. & SANCHEZ-FARIAS, N. & HERARD, F. & MENUET, A. & MAYEUR, H. & BILLOUD, B. & RODRIGUEZ-MOLDES, I. & CANDAL, E. & MAZAN, S. (2018) Neurogenetic asymmetries in the catshark developing habenulae: mechanistic and evolutionary implications. Scientific Reports, 8: 4616 http://dx.doi.org/10.1038/s41598-018-22851-3
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MACHADO, A.M. & ALMEIDA, T. & MUCIENTES, G. & ESTEVES, P.J. & VERISSIMO, A. & CASTRO, L.F.C. (2018) De novo assembly of the kidney and spleen transcriptomes of the cosmopolitan blue shark, Prionace glauca. Marine Genomics, 37: 50-53 http://dx.doi.org/10.1016/j.margen.2017.11.009
MADUNA, S.N. & VAN WYK, J.H. & DA SILVA, C. & GENNARI, E. & BESTERVAN DER MERWE, A.E. (2018) Evidence for sperm storage in common smoothhound shark Mustelus mustelus and paternity assessment in a single litter from South Africa. Journal of Fish Biology, 92 (4): 1183-1191 http://dx.doi.org/10.1111/jfb.13565
MEYER, C.G. & ANDERSON, J.M. & COFFEY, D.M. & HUTCHINSON, M.R. & ROYER, M.A. & HOLLAND, K.N. (2018) Habitat geography around Hawaii’s oceanic islands influences tiger shark (Galeocerdo cuvier) spatial behaviour and shark bite risk at ocean recreation sites. Scientific Reports, 8: 4945 http://dx.doi.org/10.1038/s41598-018-23006-0
MOURA, T. & FERNANDES, A. & FIGUEIREDO, I. & ALPOIM, R. & AZEVEDO, M. (2018) Management of deep-water sharks' by-catch in the Portuguese anglerfish fishery: from EU regulations to practice. Marine Policy, 90: 55-67 http://dx.doi.org/10.1016/j.marpol.2018.01.006
NAVARRO, J. & PEREZGRUESO, A. & BARRÍA, C. & COLL, M. (2018) Photo‐identification as a tool to study small‐spotted catshark Scyliorhinus canicula. Journal of Fish Biology, in press http://dx.doi.org/10.1111/jfb.13609
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PAIVA, L.G. & JULIO, T.G. & MARQUES, R.A. & VIANNA, M. (2018) First description of the embryos of the stingray Gymnura altavela (Linnaeus, 1758) (Myliobatiformes: Gymnuridae), a species at risk of extinction. Journal of Applied Ichthyology, in press http://dx.doi.org/10.1111/jai.13711
PAVAN-KUMAR, A. & KUMAR, R. & PITALE, P. & SHEN, K.N. & BORSA, P. (2018) Neotrygon indica sp nov., the Indian Ocean blue-spotted maskray (Myliobatoidei, Dasyatidae). Comptes Rendus Biologies, 341 (2): 120-130 http://dx.doi.org/10.1016/j.crvi.2017.2018.01.004
PAYNE, N.L. & MEYER, C.G. & SMITH, J.A. & HOUGHTON, J.D.R. & BARNETT, A. & HOLMES, B.J. & NAKAMURA, I. & PAPASTAMATIOU, Y.P. & ROYER, M.A. & COFFEY, D.M. & ANDERSON, J.M. & HUTCHINSON, M.R. & SATO, K. & HALSEY, L.G. (2018) Combining abundance and performance data reveals how temperature regulates coastal occurrences and activity of a roaming apex predator. Global Change Biology, 24 (5): 1884–1893 http://dx.doi.org/10.1111/gcb.14088
PRATT, H.L. & PRATT, T.C. & MORLEY, D. & LOWERRE-BARBIERI, S. & COLLINS, A. & CARRIER, J.C. & HART, K.M. & WHITNEY, N.M. (2018) Partial migration of the nurse shark, Ginglymostoma cirratum (Bonnaterre), from the Dry Tortugas Islands. Environmental Biology of Fishes, 101 (4): 515-530 http://dx.doi.org/10.1007/s10641-017-0711-1
RINCON, G. & MAZZOLENI, R.C. & PALMEIRA, A.R.O. & LESSA, R. (2017) Deep-Water Sharks, Rays, and Chimaeras of Brazil. In: Chondrichthyes - Multidisciplinary ApproachEdition: Chapter: 5, (ed.) LLuís Fernando da Silva Rodrigues Filho, João Bráullio de Luna Sales, IntechOpen http://dx.doi.org/10.5772/intechopen.69471
SAMANTA, R. & CHAKRABORTY, S.K. & SHENOY, L. & NAGESH, T.S. & BEHERA, S. & BHOUMIK, T.S. (2018) Bycatch characterization and relationship between trawl catch and lunar cycle in single day Shrimp Trawls from Mumbai Coast of India. Regional Studies in Marine Science, 17: 47-58 http://dx.doi.org/10.1016/j.rsma.2017.11.009
SANTOS-DURAN, G.N. & FERREIRO-GALVE, S. & MENUET, A. & MAZAN, S. & RODRIGUEZ-MOLDES, I. & CANDAL, E. (2018) The Shark Basal Hypothalamus: Molecular Prosomeric Subdivisions and Evolutionary Trends. Frontiers in Neuroanatomy, 12: 17 http://dx.doi.org/10.3389/fnana.2018.00017
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SHERMAN, C.S. & CHINA, A. & HEUPEL, M.R. & SIMPFENDORFER, C.A. (2018) Are we underestimating elasmobranch abundances on baited remote underwater video systems (BRUVS) using traditional metrics? Journal of Experimental Marine Biology and Ecology, 503: 80-85 http://dx.doi.org/10.1016/j.jembe.2018.03.002
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Extinct Chondrichthyes:
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Basking sharks gather in large groups off northeast US coast

Group sightings are fairly rare

Date: March 30, 2018
Source: NOAA Northeast Fisheries Science Center
Summary: Groups of basking sharks ranging from as few as 30 to nearly 1,400 individual animals have been observed aggregating in waters from Nova Scotia to Long Island. While individual sightings are fairly common, seeing large groups is not. The reason why the animals congregate has not been clearly determined, and observations of these aggregation events are relatively rare.

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A basking shark from the air. The animals can grow up to 32 feet long, but adults are typically in the 20-26 foot range.
Credit: NOAA Fisheries/Corey Accardo


Whale shark logs longest-recorded trans-Pacific migration

Date: April 26, 2018
Source: Smithsonian Tropical Research Institute
Summary: A whale shark named Anne swam all the way across the Pacific from Coiba National Park in Panama to the Marianas Trench, setting a record as the longest-recorded migration.

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Whale sharks are filter feeders, eating plankton, fish eggs, krill, crab larvae as well as small squid and fish that enter their large mouths. They cannot digest plastic garbage.
Credit: Kevan Mantell

Video Trailer about Angle sharks!

Thanks to Elodie Turpin for sharing this video about Angle sharks!

Many know its name; few have seen it. Once present throughout Europe, the angel shark is now critically endangered. 
As unique as extraordinary, it reveals to us several secrets... little by little, and to those who take the time to listen.
and the link of the trailer: