Scientific Papers

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Bythaelurus tenuicephalus n. sp., a new deep-water catshark from the western Indian Ocean

Bythaelurus tenuicephalus n. sp., a new deep-water catshark from the western Indian Ocean

Published on 07. September 2015 Bythaelurus tenuicephalus n. sp., a new deep-water catshark (Carcharhiniformes, Scyliorhinidae) from the western Indian Ocean Carina Julia Kaschner, Simon Weigmann, Ralf Thiel ABSTRACT: A new dwarf deep-water catshark, Bythaelurus tenuicephalus, is described based on one adult and one juvenile male specimen from off Tanzania and Mozambique in the western Indian

Geographical variability in life-history traits of a midslope dogfish: the brier shark

Geographical variability in life-history traits of a midslope dogfish: the brier shark

Published online on 01. September 2015 Geographical variability in life-history traits of a midslope dogfish: the brier shark Deania calcea B. E. A. Rochowski, T. I. Walker, R. W. Day ABSTRACT: Deania calcea (n = 420) were collected from the catch of deep-water trawlers in the southern and eastern scalefish and shark fishery in southern

Dietary Customs related to Shark Cuisine from the Meiji Era to the Present

Dietary Customs related to Shark Cuisine from the Meiji Era to the Present

Published on 05. September 2015 Dietary Customs related to Shark Cuisine from the Meiji Era to the Present Satsuki Une ABSTRACT: The objective of this study was to demonstrate Japanese dietary customs surrounding the consumption of shark meat by comparing them with those related to the consumption of stingray, as well as by examining the

Development of the Synarcual in the Elephant Sharks

Development of the Synarcual in the Elephant Sharks

Published on 04. September 2015 Development of the Synarcual in the Elephant Sharks (Holocephali; Chondrichthyes): Implications for Vertebral Formation and Fusion Zerina Johanson, Catherine Boisvert, Anton Maksimenko, Peter Currie, Kate Trinajstic ABSTRACT: The synarcual is a structure incorporating multiple elements of two or more anterior vertebrae of the axial skeleton, forming immediately posterior to the

Evolutionary origins and development of saw-teeth on the sawfish and sawshark rostrum

Evolutionary origins and development of saw-teeth on the sawfish and sawshark rostrum

Published on 02. September 2015 Evolutionary origins and development of saw-teeth on the sawfish and sawshark rostrum (Elasmobranchii; Chondrichthyes) Monique Welten, Moya Meredith Smith, Charlie Underwood, Zerina Johanson ABSTRACT: A well-known characteristic of chondrichthyans (e.g. sharks, rays) is their covering of external skin denticles (placoid scales), but less well understood is the wide morphological diversity

At-vessel and post-release mortality of the dusky and sandbar sharks after longline capture

At-vessel and post-release mortality of the dusky and sandbar sharks after longline capture

Published online on 24. August 2015 At-vessel and post-release mortality of the dusky (Carcharhinus obscurus) and sandbar (C. plumbeus) sharks after longline capture Heather Marshall, Gregory Skomal, , Paige G. Ross, , Diego Bernal ABSTRACT: Since the mid 1990’s, stock assessments of shark populations in the northwest Atlantic by the National Marine Fisheries Service (NMFS)

Selective characteristics of a shark-excluding grid device in a Mediterranean trawl

Selective characteristics of a shark-excluding grid device in a Mediterranean trawl

Published online on 24. August 2015 Selective characteristics of a shark-excluding grid device in a Mediterranean trawl Jure Brčić, Bent Herrmann, Francesco De Carlo, Antonello Sala ABSTRACT: Galeus melastomus (blackmouth catshark) is often caught as bycatch in demersal trawls in the Mediterranean. In order to reduce bycatches of shark we tested an excluder grid with

Assessing Indonesian manta and devil ray populations

Assessing Indonesian manta and devil ray populations

Published on 29. August 2015 Assessing Indonesian manta and devil ray populations through historical landings and fishing community interviews Sarah A. Lewis, Naneng Setiasih, Fahmi, Dharmadi, Mary P. O’Malley, Stuart J. Campbell, Muhammad Yusuf, Abraham Sianipar ABSTRACT: International concern is growing with regard to the sustainability of manta and devil ray (collectively mobulids) fisheries as

The Ecuadorian Artisanal Fishery for Large Pelagics

The Ecuadorian Artisanal Fishery for Large Pelagics

Published on 28. August 2015 The Ecuadorian Artisanal Fishery for Large Pelagics: Species Composition and Spatio-Temporal Dynamics Jimmy Martínez-Ortiz, Alexandre M. Aires-da-Silva, Cleridy E. Lennert-Cody, Mark N. Maunder ABSTRACT: The artisanal fisheries of Ecuador operate within one of the most dynamic and productive marine ecosystems of the world. This study investigates the catch composition of

Connectivity in grey reef sharks determined using empirical and simulated genetic data

Connectivity in grey reef sharks determined using empirical and simulated genetic data

Published online on 28. August 2015 Connectivity in grey reef sharks (Carcharhinus amblyrhynchos) determined using empirical and simulated genetic data Paolo Momigliano, Robert Harcourt, William D. Robbins, Adam Stow ABSTRACT: Grey reef sharks (Carcharhinus amblyrhynchos) can be one of the numerically dominant high order predators on pristine coral reefs, yet their numbers have declined even

Hooks equipped with magnets can increase catches of blue shark by longline fishery

Hooks equipped with magnets can increase catches of blue shark by longline fishery

Published online on 24. August 2015 Hooks equipped with magnets can increase catches of blue shark (Prionace glauca) by longline fishery Sebastián Biton Porsmoguer, Daniela Bănaru, Charles F. Boudouresque, Ivan Dekeyser, Christophe Almarcha ABSTRACT: Blue shark (Prionace glauca) populations are decreasing worldwide and the species is currently classified as near threatened. However, it is the

Angular roughshark in captivity feeding exclusively on elasmobranch eggs: an overlooked feeding niche or a matter of individual taste?

Angular roughshark in captivity feeding exclusively on elasmobranch eggs: an overlooked feeding niche or a matter of individual taste?

Published online on 17. August 2015 Angular roughshark Oxynotus centrina (Squaliformes: Oxynotidae) in captivity feeding exclusively on elasmobranch eggs: an overlooked feeding niche or a matter of individual taste? J. Guallart, P. García-Salinas, A. E. Ahuir-Baraja, M. Guimerans, J. R. Ellis, M. Roche ABSTRACT: A specimen of angular roughshark Oxynotus centrina has been kept successfully

A shift in anterior–posterior positional information underlies the fin-to-limb evolution

A shift in anterior–posterior positional information underlies the fin-to-limb evolution

Published on 18. August 2015 A shift in anterior–posterior positional information underlies the fin-to-limb evolution Koh Onimaru, Shigehiro Kuraku, Wataru Takagi, Susumu Hyodo, James Sharpe, Mikiko Tanaka ABSTRACT: The pectoral fins of ancestral fishes had multiple proximal elements connected to their pectoral girdles. During the fin-to-limb transition, anterior proximal elements were lost and only the

Age and growth of the tiger shark off the east coast of Australia

Age and growth of the tiger shark off the east coast of Australia

Published online on 06. August 2015 Age and growth of the tiger shark Galeocerdo cuvier off the east coast of Australia B. J. Holmes, V. M. Peddemors, A. N. Gutteridge, P. T. Geraghty, R. W. K. Chan, I. R. Tibbetts, M. B. Bennett ABSTRACT: Total lengths (LT) at age and growth rates for south-west Pacific

Differential gene flow patterns for two commercially exploited shark species along the south–west coast of South Africa

Differential gene flow patterns for two commercially exploited shark species along the south–west coast of South Africa

Published online on 04. August 2015 Differential gene flow patterns for two commercially exploited shark species, tope (Galeorhinus galeus) and common smoothhound (Mustelus mustelus) along the south–west coast of South Africa Daphne N. Bitalo, Simo N. Maduna, Charlene da Silva, Rouvay Roodt-Wilding, Aletta E. Bester-van der Merwe ABSTRACT: South Africa’s demersal sharks are threatened by

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