Using Viviparous Sharks As a Model to Understand Vertebrate Placental Evolution
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Bibliography Database of Living/Fossil Sharks, Rays and Chimaeras (Chondrichthyes: Elasmobranchii, Holocephali) Papers of the Year 2016
www.shark-references.com Version 13.01.2017 Bibliography database of living/fossil sharks, rays and chimaeras (Chondrichthyes: Elasmobranchii, Holocephali) Papers of the year 2016 published by Jürgen Pollerspöck, Benediktinerring 34, 94569 Stephansposching, Germany and Nicolas Straube, Munich, Germany ISSN: 2195-6499 copyright by the authors 1 please inform us about missing papers: [email protected] www.shark-references.com Version 13.01.2017 Abstract: This paper contains a collection of 803 citations (no conference abstracts) on topics related to extant and extinct Chondrichthyes (sharks, rays, and chimaeras) as well as a list of Chondrichthyan species and hosted parasites newly described in 2016. The list is the result of regular queries in numerous journals, books and online publications. It provides a complete list of publication citations as well as a database report containing rearranged subsets of the list sorted by the keyword statistics, extant and extinct genera and species descriptions from the years 2000 to 2016, list of descriptions of extinct and extant species from 2016, parasitology, reproduction, distribution, diet, conservation, and taxonomy. The paper is intended to be consulted for information. In addition, we provide information on the geographic and depth distribution of newly described species, i.e. the type specimens from the year 1990- 2016 in a hot spot analysis. Please note that the content of this paper has been compiled to the best of our abilities based on current knowledge and practice, however, -
An Introduction to the Classification of Elasmobranchs
An introduction to the classification of elasmobranchs 17 Rekha J. Nair and P.U Zacharia Central Marine Fisheries Research Institute, Kochi-682 018 Introduction eyed, stomachless, deep-sea creatures that possess an upper jaw which is fused to its cranium (unlike in sharks). The term Elasmobranchs or chondrichthyans refers to the The great majority of the commercially important species of group of marine organisms with a skeleton made of cartilage. chondrichthyans are elasmobranchs. The latter are named They include sharks, skates, rays and chimaeras. These for their plated gills which communicate to the exterior by organisms are characterised by and differ from their sister 5–7 openings. In total, there are about 869+ extant species group of bony fishes in the characteristics like cartilaginous of elasmobranchs, with about 400+ of those being sharks skeleton, absence of swim bladders and presence of five and the rest skates and rays. Taxonomy is also perhaps to seven pairs of naked gill slits that are not covered by an infamously known for its constant, yet essential, revisions operculum. The chondrichthyans which are placed in Class of the relationships and identity of different organisms. Elasmobranchii are grouped into two main subdivisions Classification of elasmobranchs certainly does not evade this Holocephalii (Chimaeras or ratfishes and elephant fishes) process, and species are sometimes lumped in with other with three families and approximately 37 species inhabiting species, or renamed, or assigned to different families and deep cool waters; and the Elasmobranchii, which is a large, other taxonomic groupings. It is certain, however, that such diverse group (sharks, skates and rays) with representatives revisions will clarify our view of the taxonomy and phylogeny in all types of environments, from fresh waters to the bottom (evolutionary relationships) of elasmobranchs, leading to a of marine trenches and from polar regions to warm tropical better understanding of how these creatures evolved. -
Sharks and Rays Back in the North Sea!
SHARKS AND RAYS BACK IN THE NORTH SEA! © Peter Verhoog Juvenile thornback rays ABOUT SHARKS AND RAYS Important for the marine ecosystem Long before we humans walked this earth, beautiful sharks and rays were swimming in the world’s oceans. These apex predators have been at the top of the food chain for 450 million years, where they fulfil a vital role in the ecosystem of the oceans. They ‘maintain’ coral reefs, they ensure the ecological balance between species and they contribute to healthy populations of other animals by eating the weaker individuals. Largescale overfishing of sharks and rays affects the entire food chain and thus the health of the oceans. Low reproductive capacity Sharks and rays are characterized by a low reproductive capacity; many species are only sexually mature after more than 10 years. Most shark species develop their eggs inside the body of the female. Baby sharks are born fully developed. Most sharks have 1 to 20 pups per year. The reproductive biology of sharks is therefore more akin to that of marine mammals than fish. The Dutch North Sea is the habitat of several egg-laying shark species and rays: both the small-spotted catshark and the greater spotted dogfish or nursehound lay 18 to 20 eggs per year. The eggs take 7 to 10 months to hatch. The empty cases often wash up on beaches. Most Dutch bottom-dwelling rays lay eggs, from 20 to 140 eggs per year. Due to their low reproduction cycles, sharks and rays are vulnerable for overfishing, as the recovery of populations is very slow. -
Morphological and Mitochondrial DNA Divergence Validates Blackmouth, Galeus Melastomus, and Atlantic Sawtail Catsharks, Galeus Atlanticus,Asseparatespecies
Journal of Fish Biology (2007) 70 (Supplement C), 346–358 doi:10.1111/j.1095-8649.2007.01455.x, available online at http://www.blackwell-synergy.com Morphological and mitochondrial DNA divergence validates blackmouth, Galeus melastomus, and Atlantic sawtail catsharks, Galeus atlanticus,asseparatespecies R. CASTILHO*†, M. FREITAS*, G. SILVA*, J. FERNANDEZ-CARVALHO‡ AND R. COELHO‡ *Biodiversity and Conservation Group, CCMAR, University of Algarve, Campus de Gambelas, 8005-139 Faro, Portugal and ‡Coastal Fisheries Research Group, CCMAR, University of Algarve, Campus de Gambelas, 8005-139 Faro, Portugal (Received 30 August 2006, Accepted 17 January 2007) A total of 60 morphometric traits and nucleotide sequences of the entire mtDNA NADH dehydrogenase subunit 2 (ND2) gene [1047 base pair (bp)] in 23 individuals of blackmouth, Galeus melastomus, and 13 individuals of sawtail catsharks, Galeus atlanticus, caught in Southern Portugal, were examined to test the validity of these two taxa. These sharks closely resemble each other, have overlapping geographical ranges and are difficult to identify by morphological characters. Non-metric multidimensional scaling of morphometric variables indicates a clear separation between the two species, with 10 characters each contributing 2Á12–2Á45% of the total variability between species. Maximum likelihood, parsimony and neighbour-joining trees revealed two major mtDNA haplotype clades, corresponding to the two species, with an average corrected sequence divergence between them of 3Á39 Æ 0Á56%. Within species divergences between haplotypes averaged 0Á27 Æ 0Á18% in G. melastomus and 0Á12 Æ 0Á08% in G. atlanticus. A total of 35 diagnostic nucleotide site differences and four restriction fragment length polymorphism recognition sites in the ND2 gene can be used to distinguish the two species. -
Ground Sharks
click for previous page - v - TABLE OF CONTENTS Code Page 9. ORDER CARCHARHINIFORMES - GROUND SHARKS ....................................................................................... 251 9.1 FAMILY SCYLIORHINIDAE - Catsharks .................................................. SCYL ........................................... 253 Apristurus....................................................................................................... SCYL Aprist ................................ 257 A. atlanticus ..................................................................................... SCYL Aprist 1 ............................... 261 A. brunneus ...................................................................................... SCYL Aprist 2 ............................... 262 A. canutus ............................................................................................ SCYL Aprist 3 ............................... 263 A. herklotsi ........................................................................................ SCYL Aprist 4 ............................... 264 A. indicus ............................................................................................. SCYL Aprist 5 ............................... 265 A. investigatoris ................................................................................... SCYL Aprist 6 ............................... 267 A. japonicus ....................................................................................... SCYL Aprist 7 ............................... 268 -
“Trophic Strategies and Basic Morphology of the Rare Demersal Kitefin Shark Dalatias Licha in the North- Western Mediterranean Sea”
“Trophic strategies and basic morphology of the rare demersal kitefin shark Dalatias licha in the north- western Mediterranean Sea” Mª Lourdes López Calero Master in Marine Sciences: Oceanography and Marine Environment Management Directores: Tutor: Dra. Marta Coll Montón y Dr. Joan Dr. Joan Baptista Company Claret Navarro Bernabé Departamento de Recursos Marinos Departamento de Recursos Marinos Renovables Renovables Instituto de Ciencias del Mar - CSIC Instituto de Ciencias del Mar - CSIC September 2013 Abstract At the present time unravelling the complexity of marine food webs has become a valuable tool to progress on the knowledge on how marine ecosystems are structured and how the function. Recently, to the study of species trophic ecology, has been applied a combination of two complementary methodologies, stomach content and stable isotope analyses With the present study I aimed at examining the trophic ecology and other biological traits of the kitefin shark Dalatias licha in the north-western Mediterranean Sea. A demersal shark which has been assessed as near threaten globally and data deficient in the Mediterranean Sea within the IUCN framework. In this study I provide morphological measures and also new information on its diet composition, trophic ecology and trophic level of this organism by means of stomach content analysis, providing dietary quantitative indexes (%F, %N and %IRI), and stable isotopes analysis by measuring δ15N and δ13C isotopic values and applying Bayesian isotopic mixing models. Also potential differences in dietary habits and basic morphology between sexes and different study areas were examined. Results show alimentary preference for small demersal sharks, followed by bony fishes, which could be a symptom of a dietary shift from fishes that were the main prey 30 years ago. -
Malaysia National Plan of Action for the Conservation and Management of Shark (Plan2)
MALAYSIA NATIONAL PLAN OF ACTION FOR THE CONSERVATION AND MANAGEMENT OF SHARK (PLAN2) DEPARTMENT OF FISHERIES MINISTRY OF AGRICULTURE AND AGRO-BASED INDUSTRY MALAYSIA 2014 First Printing, 2014 Copyright Department of Fisheries Malaysia, 2014 All Rights Reserved. No part of this publication may be reproduced or transmitted in any form or by any means, electronic, mechanical, including photocopy, recording, or any information storage and retrieval system, without prior permission in writing from the Department of Fisheries Malaysia. Published in Malaysia by Department of Fisheries Malaysia Ministry of Agriculture and Agro-based Industry Malaysia, Level 1-6, Wisma Tani Lot 4G2, Precinct 4, 62628 Putrajaya Malaysia Telephone No. : 603 88704000 Fax No. : 603 88891233 E-mail : [email protected] Website : http://dof.gov.my Perpustakaan Negara Malaysia Cataloguing-in-Publication Data ISBN 978-983-9819-99-1 This publication should be cited as follows: Department of Fisheries Malaysia, 2014. Malaysia National Plan of Action for the Conservation and Management of Shark (Plan 2), Ministry of Agriculture and Agro- based Industry Malaysia, Putrajaya, Malaysia. 50pp SUMMARY Malaysia has been very supportive of the International Plan of Action for Sharks (IPOA-SHARKS) developed by FAO that is to be implemented voluntarily by countries concerned. This led to the development of Malaysia’s own National Plan of Action for the Conservation and Management of Shark or NPOA-Shark (Plan 1) in 2006. The successful development of Malaysia’s second National Plan of Action for the Conservation and Management of Shark (Plan 2) is a manifestation of her renewed commitment to the continuous improvement of shark conservation and management measures in Malaysia. -
Feeding Ecology and Trophic Position of Three Sympatric Demersal Chondrichthyans in the Northwestern Mediterranean
Vol. 524: 255–268, 2015 MARINE ECOLOGY PROGRESS SERIES Published March 30 doi: 10.3354/meps11188 Mar Ecol Prog Ser Feeding ecology and trophic position of three sympatric demersal chondrichthyans in the northwestern Mediterranean Marta Albo-Puigserver1,*, Joan Navarro1,2, Marta Coll1,3, Jacopo Aguzzi1, Luis Cardona4, Raquel Sáez-Liante1 1Institut de Ciències del Mar (ICM-CSIC), Passeig Marítim de la Barceloneta, 37-49, 08003 Barcelona, Spain 2Department of Conservation Biology, Estación Biológica de Doñana (EBD-CSIC), Avda. Américo Vespucio s/n, Sevilla 41092, Spain 3Laboratoire Écosystèmes Marins Exploités UMR 212, IRD-IFREMER-UM2, Avenue Jean Monnet BP171, 34203 Sète Cedex, France 4Departament de Biologia Animal and Institut de Recerca de la Biodiversitat (IRBio), Facultat de Biologia, Universitat de Barcelona, Avinguda Diagonal 645, 08028 Barcelona, Spain ABSTRACT: Understanding how marine predators interact is a scientific challenge. In marine eco- systems, segregation in feeding habits has been largely described as a common mechanism to allow the coexistence of several competing marine predators. However, little is known about the feeding ecology of most species of chondrichthyans, which play a pivotal role in the structure of marine food webs worldwide. In this study, we examined the trophic ecology of 3 relatively abun- dant chondrichthyans coexisting in the Mediterranean Sea: the blackmouth catshark Galeus melastomus, the velvet belly lanternshark Etmopterus spinax and the rabbit fish Chimaera monstrosa. To examine their trophic ecology and interspecific differences in food habits, we combined the analysis of stomach content and stable isotopes. Our results highlighted a trophic segregation between C. monstrosa and the other 2 species. G. melastomus showed a diet composed mainly of cephalopods, while E. -
An Overview of the Elasmobranch By-Catch of the Queensland East Coast Trawl Fishery (Australia) (Elasmobranch Fisheries – Oral)
NOT TO BE CITED WITHOUT PRIOR REFERENCE TO THE AUTHOR(S) Northwest Atlantic Fisheries Organization Serial No. N4718 NAFO SCR Doc. 02/97 SCIENTIFIC COUNCIL MEETING – SEPTEMBER 2002 An Overview of the Elasmobranch By-catch of the Queensland East Coast Trawl Fishery (Australia) (Elasmobranch Fisheries – Oral) by P. M. Kynea, A.J. Courtneyb, M.J. Campbellb, K.E. Chilcottb, S.W. Gaddesb, C.T. Turnbullc, C.C. Van Der Geestc and M. B. Bennetta a Department of Anatomy and Developmental Biology, The University of Queensland, Brisbane, 4072, Queensland, Australia b Southern Fisheries Centre, Queensland Department of Primary Industries, PO Box 76, Deception Bay, 4508, Queensland, Australia c Northern Fisheries Centre, Queensland Department of Primary Industries, PO Box 5396, Cairns, 4870, Queensland, Australia E-mail: [email protected] Abstract The Queensland East Coast Trawl Fishery (ETCF) is a complex multi-species and multi-sector fishery operating along Queensland’s eastern coastline, with combined annual landings of close to 10 000 tons. Elasmobranchs represent a relatively small, but potentially ecologically significant component of by-catch in this fishery. At least 94 species of elasmobranchs occur in the managed area of the ECTF and a study has been initiated to examine elasmobranch by-catch in four sectors of the fishery, as part of a larger Queensland Department of Primary Industries by-catch project. A total of 42 elasmobranch and one holocephalan species have been recorded as by- catch in the fishery. Preliminary results from fishery-independent (FI) surveys indicate that elasmobranch by-catch is highly variable between fishery sectors. Elasmobranch by-catch is extremely low in the tiger/Endeavour prawn sector, low in the eastern king prawn – deep water sector (EKP-D), and moderate in the EKP – shallow water sector (EKP-S). -
Redalyc.Stomach Contents of the Pacific Sharpnose Shark
Latin American Journal of Aquatic Research E-ISSN: 0718-560X [email protected] Pontificia Universidad Católica de Valparaíso Chile Osuna-Peralta, Yolene R.; Voltolina, Domenico; Morán-Angulo, Ramón E.; Márquez-Farías, J. Fernando Stomach contents of the Pacific sharpnose shark, Rhizoprionodon longurio (Carcharhiniformes, Carcharhinidae) in the southeastern Gulf of California Latin American Journal of Aquatic Research, vol. 42, núm. 3, 2014, pp. 438-444 Pontificia Universidad Católica de Valparaíso Valparaiso, Chile Available in: http://www.redalyc.org/articulo.oa?id=175031375005 How to cite Complete issue Scientific Information System More information about this article Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Journal's homepage in redalyc.org Non-profit academic project, developed under the open access initiative Lat. Am. J. Aquat. Res., 42(3): 438-44Stomach4, 2014 contents of Rhizoprionodon longurio in the Gulf of California 438 1 DOI: 103856/vol42-issue3-fulltext-5 Research Article Stomach contents of the Pacific sharpnose shark, Rhizoprionodon longurio (Carcharhiniformes, Carcharhinidae) in the southeastern Gulf of California Yolene R. Osuna-Peralta1, Domenico Voltolina2 Ramón E. Morán-Angulo1 & J. Fernando Márquez-Farías1 1Facultad de Ciencias del Mar, Universidad Autónoma de Sinaloa Paseo Claussen s/n, Col. Los Pinos, CP 82000, Mazatlán, Sinaloa, México 2Laboratorio UAS-CIBNOR, Centro de Investigaciones Biológicas del Noroeste Ap. Postal 1132, CP 82000, Mazatlán, Sinaloa, México ABSTRACT. The feeding habits of the sharpnose shark Rhizoprionodon longurio of the SE Gulf of California are described using the stomach contents of 250 specimens (135 males and 115 females) obtained weekly from December 2007 to March 2008 in the two main landing sites of the artisanal fishing fleet of Mazatlan. -
Elasmobranch Biodiversity, Conservation and Management Proceedings of the International Seminar and Workshop, Sabah, Malaysia, July 1997
The IUCN Species Survival Commission Elasmobranch Biodiversity, Conservation and Management Proceedings of the International Seminar and Workshop, Sabah, Malaysia, July 1997 Edited by Sarah L. Fowler, Tim M. Reed and Frances A. Dipper Occasional Paper of the IUCN Species Survival Commission No. 25 IUCN The World Conservation Union Donors to the SSC Conservation Communications Programme and Elasmobranch Biodiversity, Conservation and Management: Proceedings of the International Seminar and Workshop, Sabah, Malaysia, July 1997 The IUCN/Species Survival Commission is committed to communicate important species conservation information to natural resource managers, decision-makers and others whose actions affect the conservation of biodiversity. The SSC's Action Plans, Occasional Papers, newsletter Species and other publications are supported by a wide variety of generous donors including: The Sultanate of Oman established the Peter Scott IUCN/SSC Action Plan Fund in 1990. The Fund supports Action Plan development and implementation. To date, more than 80 grants have been made from the Fund to SSC Specialist Groups. The SSC is grateful to the Sultanate of Oman for its confidence in and support for species conservation worldwide. The Council of Agriculture (COA), Taiwan has awarded major grants to the SSC's Wildlife Trade Programme and Conservation Communications Programme. This support has enabled SSC to continue its valuable technical advisory service to the Parties to CITES as well as to the larger global conservation community. Among other responsibilities, the COA is in charge of matters concerning the designation and management of nature reserves, conservation of wildlife and their habitats, conservation of natural landscapes, coordination of law enforcement efforts as well as promotion of conservation education, research and international cooperation. -
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CARCHARHINIFORMES (Ground Sharks) · 1 The ETYFish Project © Christopher Scharpf and Kenneth J. Lazara COMMENTS: v. 32.0 - 17 June 2021 Order CARCHARHINIFORMES Ground Sharks 9 families · 54 genera/subgenera · 295 species/subspecies Family PENTANCHIDAE Deepwater Cat Sharks 11 genera · 111 species Apristurus Garman 1913 a-, not; pristis, saw; oura, tail, referring to absence of saw-toothed crest of enlarged dermal denticles along upper edge of caudal fin as found in the closely related Pristiurus (=Galeus) Apristurus albisoma Nakaya & Séret 1999 albus, white; soma, body, referring to whitish color Apristurus ampliceps Sasahara, Sato & Nakaya 2008 amplus, large; -ceps, head, which, apparently, it is Apristurus aphyodes Nakaya & Stehmann 1998 whitish, referring to pale gray coloration Apristurus australis Sato, Nakaya & Yorozu 2008 southern, referring to distribution in the southern hemisphere around Australia Apristurus breviventralis Kawauchi, Weigmann & Nakaya 2014 brevis, short; ventralis, of the belly, referring to very short abdomen Apristurus brunneus (Gilbert 1892) brown, referring to “uniform warm brown” color above and below Apristurus bucephalus White, Last & Pogonoski 2008 bu, large; cephalus, head, referring to large, broad head Apristurus canutus Springer & Heemstra 1979 hoary, referring to dark gray coloration with minute white spots underneath denticles Apristurus exsanguis Sato, Nakaya & Stewart 1999 bloodless or lifeless, referring to characteristic pale coloration and flaccid body Apristurus fedorovi Dolganov 1983 in honor