Sharks, rays and chimaeras : the status of the chondrichthyan fishes
George H. Burgess,Gregor M. Cailliet,Merry Camhi,Rachel D. Cavanagh,Sonja V. Fordham,Sarah L. Fowler,John A. Musick,Colin A. Simpfendorfer +7 more
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TLDR
The IUCN Shark Specialist Group has compiled a Global Status Report for Chondrichthyan Fishes (the Sharks, Rays and Chimaeras), with Red List assessments for over 100 species and regional reports on the status of shark fisheries, together with information on taxonomy; life history; trade; socio-economics; threats; and conservation and management initiatives as mentioned in this paper.Abstract:
Many shark populations are in serious decline worldwide with little shark fisheries management in place. The IUCN Shark Specialist Group has compiled a Global Status Report for Chondrichthyan Fishes (the Sharks, Rays and Chimaeras), with Red List assessments for over 100 species and regional reports on the status of shark fisheries, together with information on taxonomy; life history; trade; socio-economics; threats; and conservation and management initiatives.read more
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Extinction risk and conservation of the world's sharks and rays
Nicholas K. Dulvy,Sarah L. Fowler,John A. Musick,Rachel D. Cavanagh,Peter M. Kyne,Lucy R. Harrison,John K. Carlson,Lindsay Davidson,Sonja V. Fordham,Malcolm P. Francis,Caroline M. Pollock,Colin A. Simpfendorfer,George H. Burgess,Kent E. Carpenter,Leonard J. V. Compagno,David A. Ebert,Claudine Gibson,Michelle R. Heupel,Suzanne R. Livingstone,Jonnell C. Sanciangco,John D. Stevens,Sarah Valenti,William T. White +22 more
TL;DR: In this article, the authors present the first systematic analysis of threat for a globally distributed lineage of 1,041 chondrichthyan fishes (sharks, rays, and chimaeras).
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The Impact of Conservation on the Status of the World’s Vertebrates
Michael R. Hoffmann,Craig Hilton-Taylor,Ariadne Angulo,Monika Böhm,Thomas M. Brooks,Stuart H. M. Butchart,Kent E. Carpenter,Janice Chanson,Ben Collen,Neil A. Cox,William Darwall,Nicholas K. Dulvy,Lucy R. Harrison,Vineet Katariya,Caroline M. Pollock,Suhel Quader,Nadia I. Richman,Ana S. L. Rodrigues,Marcelo F. Tognelli,Jean Christophe Vié,John M. Aguiar,David Allen,Gerald R. Allen,Giovanni Amori,Natalia B. Ananjeva,Franco Andreone,Paul Andrew,Aida Luz Aquino Ortiz,Jonathan E. M. Baillie,Ricardo Baldi,Ben D. Bell,S. D. Biju,Jeremy P. Bird,Patricia Black-Decima,Julian Blanc,Federico Bolaños,Wilmar Bolívar-G,Ian J. Burfield,James Burton,David R. Capper,Fernando Castro,Gianluca Catullo,Rachel D. Cavanagh,Alan Channing,Ning Labbish Chao,Anna M. Chenery,Federica Chiozza,Viola Clausnitzer,Nigel Collar,Leah C. Collett,Bruce B. Collette,Claudia F. Cortez Fernandez,Matthew T. Craig,Michael J. Crosby,Neil Cumberlidge,Annabelle Cuttelod,Andrew E. Derocher,Arvin C. Diesmos,John S. Donaldson,J. W. Duckworth,Guy Dutson,Sushil K. Dutta,Richard H. Emslie,Aljos Farjon,Sarah L. Fowler,Jörg Freyhof,David L. Garshelis,Justin Gerlach,David J. Gower,Tandora D. Grant,Geoffrey Hammerson,Richard B. Harris,Lawrence R. Heaney,S. Blair Hedges,Jean-Marc Hero,Baz Hughes,Syed Ainul Hussain,Javier Icochea,Robert F. Inger,Nobuo Ishii,Djoko T. Iskandar,Richard K. B. Jenkins,Yoshio Kaneko,Maurice Kottelat,Kit M. Kovacs,Sergius L. Kuzmin,Enrique La Marca,John F. Lamoreux,Michael W.N. Lau,Esteban O. Lavilla,Kristin Leus,Rebecca L. Lewison,Gabriela Lichtenstein,Suzanne R. Livingstone,Vimoksalehi Lukoschek,David Mallon,Philip J. K. McGowan,Anna McIvor,Patricia D. Moehlman,Sanjay Molur,Antonio Muñoz Alonso,John A. Musick,Kristin Nowell,Ronald A. Nussbaum,Wanda Olech,Nikolay L. Orlov,Theodore J. Papenfuss,Gabriela Parra-Olea,William F. Perrin,Beth Polidoro,Mohammad Pourkazemi,Paul A. Racey,James S. Ragle,Mala Ram,Galen B. Rathbun,Robert Reynolds,Anders G. J. Rhodin,Stephen Richards,Lily O. Rodríguez,Santiago R. Ron,Carlo Rondinini,Anthony B. Rylands,Yvonne Sadovy de Mitcheson,Jonnell C. Sanciangco,Kate L. Sanders,Georgina Santos-Barrera,Jan Schipper,Caryn Self-Sullivan,Yichuan Shi,Alan Shoemaker,Frederick T. Short,Claudio Sillero-Zubiri,Débora Leite Silvano,Kevin G. Smith,Andrew T. Smith,Jos Snoeks,Alison J. Stattersfield,Andrew Symes,Andrew B. Taber,Bibhab Kumar Talukdar,Helen J. Temple,Rob Timmins,Joe Tobias,Katerina Tsytsulina,Denis Tweddle,Carmen A. Úbeda,Sarah Valenti,Peter Paul van Dijk,Liza M. Veiga,Alberto Veloso,David C. Wege,Mark Wilkinson,Elizabeth A. Williamson,Feng Xie,Bruce E. Young,H. Resit Akçakaya,Leon Bennun,Tim M. Blackburn,Luigi Boitani,Holly T. Dublin,Gustavo A. B. da Fonseca,Claude Gascon,Thomas E. Lacher,Georgina M. Mace,Susan A. Mainka,Jeffery A. McNeely,Russell A. Mittermeier,Gordon Mc Gregor Reid,Jon Paul Rodríguez,Andrew Rosenberg,Michael J. Samways,Jane Smart,Bruce A. Stein,Simon N. Stuart +173 more
TL;DR: Though the threat of extinction is increasing, overall declines would have been worse in the absence of conservation, and current conservation efforts remain insufficient to offset the main drivers of biodiversity loss in these groups.
Journal ArticleDOI
Cascading effects of the loss of apex predatory sharks from a coastal ocean.
TL;DR: For example, this paper found that the abundance of all 11 great sharks that consume other elasmobranchs (rays, skates, and small sharks) fell over the past 35 years, while 12 of 14 of these prey species increased in coastal northwest Atlantic ecosystems.
Journal ArticleDOI
Marine defaunation: Animal loss in the global ocean
Douglas J. McCauley,Malin L. Pinsky,Stephen R. Palumbi,James A. Estes,Francis H. Joyce,Robert R. Warner +5 more
TL;DR: Today’s low rates of marine extinction may be the prelude to a major extinction pulse, similar to that observed on land during the industrial revolution, as the footprint of human ocean use widens.
References
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Journal ArticleDOI
Reproduction and Development in Chondrichthyan Fishes
TL;DR: Phylogenetic position, geographical distribution, benthic vs. pelagic habitat, adult size, egg-embryo size, feeding ecology, and embryonic osmoregulation are factors in the retention of oviparity or the evolution of viviparity.
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Distribution, reproduction and diet of the gray reef shark Carcharhinus amblyrhynchos in Hawaii
TL;DR: These sharks have a restricted distribution in the MHI; they were collected only in the vicinity of Niihau and Molokini islands, but were one of the most abundant sharks throughout the NWHl.
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Preliminary Study of Vertebral Growth Rings in the Whale Shark, Rhincodon typus , from the East Coast of South Africa
TL;DR: A linear relationship between centrum dorsal diameter and body length and number of GR prevented the calculation of von Bertalanffy parameters from either observed or back-calculated values.
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Records of seven juveniles of the whale shark, Rhiniodon typus
TL;DR: Seven juvenile whale sharks ranging from 550 to 930 mm in length are reported, with remeasurements of the single known embryo, and the mode of reproduction of this shark is questioned.
Journal ArticleDOI
Rare and little‐known fishes in British seas in 1970 and 1971
TL;DR: Records of occurrence of species of interesting, little-known, or rare fishes in British seas for the years 1970 and 1971 are given.