DOCSLIB.ORG

Descriptions of New Sharks and Rays of Borneo

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Descriptions of New Sharks and Rays of Borneo descriptions new Descriptions of new sharks and rays from Borneo from Descriptions of new sharks and rays sharks and ofrays borneo from editors: p. r. last • w. t. white • j. j. pogonoski csiro marine and atmospheric research csiro marine and atmospheric csiro marine and atmospheric research paper no. 032 Descriptions of new Borneo sharks and rays Publshed by: CSIRO Marne and Atmospherc Research GPO Box 1538 Hobart TAS 7001 AUSTRALIA The National Library of Australia Cataloguing-in-Publication entry Descrptons of New Sharks and Rays from Borneo. Bblography. ISBN 9781921605574 (prnted verson) ISBN 9781921605581 (pdf verson) 1. Sharks; Rays (Fshes) – Borneo. I. Last, P.R. (Peter Robert) II. Whte, W.T. (Wllam Toby) III. Pogonosk, J. J. (John James) VI. CSIRO Marne & Atmospherc Research (Seres: CSIRO Marne & Atmospherc Research Paper; 032) 597.3095983 ISSN 1833 2331 (prnted verson) ISSN 1835 1476 (pdf verson) Important Notce © Copyright Commonwealth Scientific and Industrial Research Organisation (CSIRO) Australia 2010 All rghts are reserved and no part of ths publcaton covered by copyrght may be reproduced or coped n any form or by any means except wth the wrtten permsson of CSIRO. The results and analyses contaned n ths Report are based on a number of techncal, circumstantial or otherwise specified assumptions and parameters. The user must make its own assessment of the sutablty for ts use of the nformaton or materal contaned n or generated from the Report. To the extent permtted by law, CSIRO excludes all lablty to any party for expenses, losses, damages and costs arsng drectly or ndrectly from usng ths Report. Cover Desgn: Louse Bell Layout: Wllam Whte Date of Publcaton: 24 May 2010. Prnted by Monotone. Descriptions of new Borneo sharks and rays Foreword Ths sequence of taxonomc papers s the consequence Ronald Vonk and Helke Praagman (Zoologsch Museum, of two major surveys of the chondrchthyan fauna of ZMA); Gento Shnohara (Natonal Scence Museum, Borneo. In 1996, the first major investigation of the NSMT); Tosho Kawa (Hokkado Unversty, HUMZ); sharks and rays of Sabah was ntated through fundng Masato Motek (Tokyo Unversty Marne Scence, from the UK Darwn Foundaton. Ths project addressed MTUF); Jeffrey Wllams and Jerry Fnan (Smthsonan questions relating to the biodiversity, fisheries impact, Insttuton Natonal Museum of Natural Hstory, USNM); bology, and conservaton status of the coastal marne Rchard Feeney (Los Angeles County Museum, LACM); and freshwater elasmobranch fauna, and resulted n the Hroyuk Motomura (Kagoshma Unversty Museum, compilation of the first checklist of chondrichthyans of KAUM); Smon Wegmann (Zoologsches Insttut greater Borneo. The Darwn survey also provded the und Zoologsches Museum der Humboldt Unverstät, impetus for a larger survey in the last decade of fish ZMH); Kelvn Lm (Natonal Unversty of Sngapore, markets of the sland, ncorporatng both Malaysan NUS); Ernst Mksch (Naturhstorsches Museum, Borneo and Indonesan Borneo. Ths comprehensve Venna, NMW); Mohammed Adrm, Indra Aswand, survey, made possible by the financial support of the Pryo Agustono, Suharsono (Drector of Research Centre Natonal Scence Foundaton (grants NSF BS&I Nos. for Oceanography LIPI, Jakarta); Mark McGrouther and DEB 0103640, DEB 0542941, DEB 0542846), and Amanda Hay (Australan Museum, AMS); Helen Larson, parallel surveys of the chondrchthyan faunas of the Gavn Dally and Barry Russell (Northern Terrtory Phlppnes and eastern Indonesa, unearthed several Museum, NTM); Sue Morrson, Glen Moore and Barry taxonomc problems that needed resolvng, partcularly Hutchns (Western Australan Museum, WAM); Jeff nvolvng cryptc specaton and nomenclature. Johnson (Queensland Museum, QM). Chondrchthyan specalsts, Bernard Séret, Charle Huveneers, Jenny The man objectve of ths specal taxonomc publcaton Kemper, Dave Ebert, Peter Kyne and Ken Graham, also s to document updated names for some of the speces provded revews of papers submtted. that were once consdered wdespread n the Indo- Pacific, but which are now known to have more restricted Several people helped n securng collectng permts, and dstrbutons. Seven new speces are formally descrbed, collectng or provdng access to specmens from Borneo three speces are resurrected, and two other poorly and nearby regons. In partcular these nclude: Albert known speces are redescrbed n 11 separate papers. Chuan Gambang (Fsheres Research Insttute Sarawak); These names wll be used n the soon to be publshed Rdzwan Abdul Rahman (Borneo Marne Research gude to the chondrchthyans of Borneo, ‘Sharks and rays Insttute); Edward Rooney Busng (former Deputy of Borneo’ (n press). Morphometrc acronyms used n Drector Fsheres Sabah); Ono Kurnaen Sumadhnarga, tables follow Compagno (1984, see Appendx 1). Dedy Darnaed, Ruben Sltonga and Sr Wahyono (LIPI); Hlconda Calumpong, Clarssa Reboton and May Research for these papers extends over two decades and Luchavez-Maypa (Sllman Unversty, Phlppnes); has nvolved many people n many dfferent ways. On and several other local and nternatonal scentsts and behalf on the authors of these papers, the edtors wsh to volunteers, ncludng Sarah Fowler, Scott Mycock, Sd thanks the followng for ther help: Cook, Mchael Sugden, Andy Olver, Annadel Cabanban, Loren Cara, Clare Healy, George Chong, Hamr bn Ganng access to materal n chthyologcal collectons Hg-Katng, Latp Sat, Asn Etn, Masn Etn, Salk Etn, was vtal to ths study. We thank the staff at these Anchan, Rosle, Justn Tampulng, Mengke, Junard, facltes: Renny Kurna Hadaty and Ahmad Jauhar Aref Mug Utomo, Zanal Abdn, Rayner Gald, Charles (Museum Zoologcum Bogorense, MZB); Albert Lo and Greenwald, Isnol Alang, Joe Guadano, Bad Samanego George Jons (Sabah Museum, SMEC); Dave Catana and Dharmad. (Calforna Academy of Scences, CAS); Morce Rowan, Stefanus Smon and Syuhame Ahmat Al (Borneo The genetcs component of ths research provded Marne Research Insttute, BRMI); Marten van Ojen mportant nsghts and we sought the help of several and Ronald de Ruter (Rjksmuseum van Natuurljke colleagues, partcularly Kerr Matthes, Clemens Lakner Hstore, RMNH); Roman Causse, Bernard Séret, Guy and Nel Aschlman (Florda State Unversty), Drk Duhamel, Patrce Pruvost and Zora Gabs (Muséum Stenke and Paul Hebert (Unversty of Guelph), Bob natonal d’Hstore naturelle, MNHN); Patrck Campbell Ward, Melody Puckrdge and Bronwyn Holmes (CSIRO), and Olver Crmmen (Brtsh Museum of Natural Hstory, and Shannon Corrgan (Macquare Unversty). BMNH); Peter Bartsch (Museum fur Naturkunde, ZMB); v CSIRO Marne & Atmospherc Research (Wealth from We partcularly thank all the authors and revewers of Oceans Flagshp) staff and assocates asssted n varous papers n ths volume for ther assstance n completng ways: Alastar Graham, Louse Bell, Louse Conboy, ths work wthn a short tmeframe. Dan Gledhll, John Stevens, Gordon Yearsley, Tm Fountan, Lndsay Marshall, Nc Bax, Alan Butler and Peter R. Last Davd Smth. Wllam T. Whte John J. Pogonosk Descriptions of new Borneo sharks and rays v Contents A new wobbegong shark, Orectolobus leptolineatus sp. nov. (Orectolobformes: Orectolobidae), from the Western Central Pacific ............................................................... 1 Last, P.R., Pogonoski, J.J. & White, W.T. Redscovery of the rare and endangered Borneo Shark Carcharhinus borneensis (Bleeker, 1858) (Carcharhnformes: Carcharhndae) ..................................................... 17 White, W.T., Last, P.R. & Lim, A.P.K. Glyphis fowlerae sp. nov., a new speces of rver shark (Carcharhnformes; Carcharhndae) from northeastern Borneo ......................................................................... 29 Compagno, L.J.V., White, W.T. & Cavanagh, R.D. Resurrection and redescription of the Borneo Broadfin SharkLamiopsis tephrodes (Fowler, 1905) (Carcharhnformes: Carcharhndae) ...................................................... 45 White, W.T., Last, P.R., Naylor, G.J.P. & Harris, M. Scoliodon macrorhynchos (Bleeker, 1852), a second speces of spadenose shark from the Western Pacific (Carcharhiniformes: Carcharhinidae) .............................................. 61 White, W.T., Last, P.R. & Naylor, G.J.P. A new species of wedgefish, Rhynchobatus springeri (Rhynchobatode, Rhynchobatidae), from the Western Pacific ��������������������������������������������������������������� 77 Compagno, L.J.V. & Last P.R. Okamejei cairae sp. nov. (Rajode: Rajdae), a new skate from the South Chna Sea ..................................................................................................................................... 89 Last P.R., Fahmi & Ishihara, H. A new speces of skate Okamejei jensenae sp. nov. (Rajode: Rajdae) from the seas off Borneo, wth a redescrpton of the Kwangtung Skate, Dipturus kwangtungensis (Chu) ............................................................................................................................................ 101 Last, P.R. & Lim, A.P.K. Descrpton of a new stngray, Pastinachus gracilicaudus sp. nov. (Elasmobranch: Mylobatformes), based on materal from the Indo–Malay Archpelago ................. 115 Last, P.R. & Manjaji-Matsumoto, B.M. v Pastinachus stellurostris sp. nov., a new stngray (Elasmobranch: Mylobatformes) from Indonesan Borneo ......................................................................................................... 129 Last, P.R., Fahmi & Naylor, G.J.P. Clarification ofAetobatus ocellatus (Kuhl, 1823) as a vald speces, and a comparson wth Aetobatus narinari (Euphrasen, 1790) (Rajformes: Mylobatdae) .................. 141 White, W.T.,
Load more

Recommended publications
  • Extinction Risk and Conservation of the World's Sharks and Rays
    RESEARCH ARTICLE elife.elifesciences.org Extinction risk and conservation of the world’s sharks and rays Nicholas K Dulvy1,2*, Sarah L Fowler3, John A Musick4, Rachel D Cavanagh5, Peter M Kyne6, Lucy R Harrison1,2, John K Carlson7, Lindsay NK Davidson1,2, Sonja V Fordham8, Malcolm P Francis9, Caroline M Pollock10, Colin A Simpfendorfer11,12, George H Burgess13, Kent E Carpenter14,15, Leonard JV Compagno16, David A Ebert17, Claudine Gibson3, Michelle R Heupel18, Suzanne R Livingstone19, Jonnell C Sanciangco14,15, John D Stevens20, Sarah Valenti3, William T White20 1IUCN Species Survival Commission Shark Specialist Group, Department of Biological Sciences, Simon Fraser University, Burnaby, Canada; 2Earth to Ocean Research Group, Department of Biological Sciences, Simon Fraser University, Burnaby, Canada; 3IUCN Species Survival Commission Shark Specialist Group, NatureBureau International, Newbury, United Kingdom; 4Virginia Institute of Marine Science, College of William and Mary, Gloucester Point, United States; 5British Antarctic Survey, Natural Environment Research Council, Cambridge, United Kingdom; 6Research Institute for the Environment and Livelihoods, Charles Darwin University, Darwin, Australia; 7Southeast Fisheries Science Center, NOAA/National Marine Fisheries Service, Panama City, United States; 8Shark Advocates International, The Ocean Foundation, Washington, DC, United States; 9National Institute of Water and Atmospheric Research, Wellington, New Zealand; 10Global Species Programme, International Union for the Conservation
    [Show full text]
  • (Chondrichthyes : Rajidae), Okamejei Mengae from the South China Sea
    Korean J. Ichthyol. 19(1), 57~65, 2007 A New Species of Skate (Chondrichthyes : Rajidae), Okamejei mengae from the South China Sea Choong-Hoon Jeong*, Tetsuji Nakabo1 and Han-Ling Wu2 Research Center for Coastal Environments of Yellow Sea, Inha University, Incheon 402-751, Republic of Korea 1The Kyoto University Museum, c/o Division of Applied Biosciences, Kyoto University, Kyoto 606-8501, Japan 2Laboratory of Fishes, Shanghai Fisheries University, 334 Jun Gong Rd., Shanghai, 200090, People’s of Republic of China A new species of the rajid genus Okamejei is described from a single specimen (295 mm TL) from off Shantou, Gwangdong in the South China Sea. The new species differs from all other congeners in the following combination of characters: snout pointed, dorsal head length 6.7 times interorbital width, tail moderately wide and long, its length 48.5% TL, interdorsal distance less than length of first dorsal fin base, postdorsal tail short as 5.8% TL, small evenly distributed dark brownish spots, without ocelli on dorsal surface of disc, pores of ampullae of Lorenzini on ventral surface distributed from snout tip to distal end of metapterygium, scapulocoracoid high, its height about 1.4 times rear corner height, trunk vertebrae 23, predorsal tail vertebrae 50 and pectoral fin radials 96. Key words : New species, Okamejei mengae, Rajidae, South China Sea, Chondri- chthyes size and condition of the anterior margin of the Introduction neurocranial fontanelle. Okamejei was later ele- vated to generic rank by McEachran and Dunn The family Rajidae is cosmopolitan, encompass- (1998). To date, genus Okamejei comprised nine ing about thirty genera and more than 230 nomi- species, three distributed in the Indian Ocean nal species, as well as about 50 undescribed spe- (Stehmann, 1976; Fricke and Al-Hassan, 1995) cies (McEachran and Miyake, 1990a, b; McEach- and six in the western North Pacific (reviewed by ran and Dunn, 1998).
    [Show full text]
  • Mammals of Borneo – Small Size on a Large Island
    Journal of Biogeography (J. Biogeogr.) (2008) 35, 1087–1094 ORIGINAL Mammals of Borneo – small size on a ARTICLE large island Shai Meiri1,*, Erik Meijaard2,3, Serge A. Wich4, Colin P. Groves3 and Kristofer M. Helgen5 1NERC Centre for Population Biology, ABSTRACT Imperial College London, Silwood Park Aim Island mammals have featured prominently in models of the evolution of Campus, Ascot, UK, 2Tropical Forest Initiative, The Nature Conservancy, Balikpapan, body size. Most of these models examine size evolution across a wide range of Indonesia, 3School of Archaeology and islands in order to test which island characteristics influence evolutionary Anthropology, Australian National University, pathways. Here, we examine the mammalian fauna of a single island, Borneo, Canberra, Australia, 4Great Ape Trust of Iowa, where previous work has detected that some mammal species have evolved a Des Moines, IA, USA, 5Division of Mammals, relatively small size. We test whether Borneo is characterized by smaller mammals National Museum of Natural History, than adjacent areas, and examine possible causes for the different trajectories of Smithsonian Institution, Washington, DC, size evolution between different Bornean species. USA Location Sundaland: Borneo, Sumatra, Java and the Malay/Thai Peninsula. Methods We compared the mammalian body size frequency distributions in the four areas to examine whether the large mammal fauna of Borneo is more depauperate than elsewhere. We measured specimens belonging to 54 mammal species that are shared between Borneo and any of the other areas in order to determine whether there is an intraspecific tendency for Bornean mammals to evolve small body size. Using data on diet, body size and geographical ranges we examine factors that are thought to influence body size.
    [Show full text]
  • Growth and Population Parameters of the Spade Nose Shark, Scoliodon Laticaudus from Calicut Coast P
    Indian J. Fish., 45(1) : 29-34, Jan.-Mar., 1998 Growth and population parameters of the spade nose shark, Scoliodon laticaudus from Calicut coast p. DEVADOSS Madras Research Centre of Central Marine Fisheries Research Institute, Madras - 600 006, India ABSTRACT von Bertalanffy's growth equation was used to describe growth of Scoliodon laticaudus Muller and Henle. The L , K and t^ values estimated were 715 mm, 0.3580, and 0.590 for females and 676 mm° 0.4046 and 0.590 for males respectively. Females grow larger and live longer than males. The overall sex ratio was 1 : 1.31, the females predominating, more so from 551-600 mm size group onwards. The average estimated annual catch was 14.4 tonnes at the existing F value of 0.73. Introduction and Devadoss (1977, 1979, 1989). Age and growth was studied by Nair (1976). Elasmobranchs roughly contributed The present account deals with the 4 % in the total fish catch at Calicut differential growth in male and female during 1977-'81. In recent years the sharks and other population param­ elasmobranchs have attracted the at­ eters. tention of fishery scientists as well as the fishing industry because of their fins Material and methods and flesh which have high utility value in both export market as well as in the Fish samples for the study were country. As Scoliodon laticaudus is not collected from the fish landing centre at a fast swimmer and occupies the near- Vellayil, Calicut where small trawlers shore region in shallow waters, it is operating in the inshore region land mostly caught in trawl gear as a their catch.
    [Show full text]
  • Field Guide to Requiem Sharks (Elasmobranchiomorphi: Carcharhinidae) of the Western North Atlantic
    Field guide to requiem sharks (Elasmobranchiomorphi: Carcharhinidae) of the Western North Atlantic Item Type monograph Authors Grace, Mark Publisher NOAA/National Marine Fisheries Service Download date 24/09/2021 04:22:14 Link to Item http://hdl.handle.net/1834/20307 NOAA Technical Report NMFS 153 U.S. Department A Scientific Paper of the FISHERY BULLETIN of Commerce August 2001 (revised November 2001) Field Guide to Requiem Sharks (Elasmobranchiomorphi: Carcharhinidae) of the Western North Atlantic Mark Grace NOAA Technical Report NMFS 153 A Scientific Paper of the Fishery Bulletin Field Guide to Requiem Sharks (Elasmobranchiomorphi: Carcharhinidae) of the Western North Atlantic Mark Grace August 2001 (revised November 2001) U.S. Department of Commerce Seattle, Washington Suggested reference Grace, Mark A. 2001. Field guide to requiem sharks (Elasmobranchiomorphi: Carcharhinidae) of the Western North Atlantic. U.S. Dep. Commer., NOAA Tech. Rep. NMFS 153, 32 p. Online dissemination This report is posted online in PDF format at http://spo.nwr.noaa.gov (click on Technical Reports link). Note on revision This report was revised and reprinted in November 2001 to correct several errors. Previous copies of the report, dated August 2001, should be destroyed as this revision replaces the earlier version. Purchasing additional copies Additional copies of this report are available for purchase in paper copy or microfiche from the National Technical Information Service, 5285 Port Royal Road, Springfield, VA 22161; 1-800-553-NTIS; http://www.ntis.gov. Copyright law Although the contents of the Technical Reports have not been copyrighted and may be reprinted entirely, reference to source is appreciated.
    [Show full text]
  • Redescription and Taxonomic Status of Dipturus Chilensis (Guichenot, 1848), and Description of Dipturus Lamillai Sp
    Zootaxa 4590 (5): 501–524 ISSN 1175-5326 (print edition) https://www.mapress.com/j/zt/ Article ZOOTAXA Copyright © 2019 Magnolia Press ISSN 1175-5334 (online edition) https://doi.org/10.11646/zootaxa.4590.5.1 http://zoobank.org/urn:lsid:zoobank.org:pub:F484C560-CAE9-4A9E-B408-AEC2C8893DAD Redescription and taxonomic status of Dipturus chilensis (Guichenot, 1848), and description of Dipturus lamillai sp. nov. (Rajiformes: Rajidae), a new species of long-snout skate from the Falkland Islands FRANCISCO J. CONCHA1,2,7, JANINE N. CAIRA1, DAVID A. EBERT3,4,5 & JOOST H. W. POMPERT6 1Department of Ecology & Evolutionary Biology, University of Connecticut, 75 North Eagleville Road, Unit 3043 Storrs, CT 06269 – 3043, USA 2Facultad de Ciencias del Mar y de Recursos Naturales, Universidad de Valparaíso, Av. Borgoño 16344, Viña del Mar, Chile 3Pacific Shark Research Center, Moss Landing Marine Laboratories, Moss Landing, CA 95039, USA 4Department of Ichthyology, California Academy of Sciences, 55 Music Concourse Drive, San Francisco, CA 94118, USA 5South African Institute for Aquatic Biodiversity, Private Bag 1015, Grahamstown 6140, South Africa 6Georgia Seafoods Ltd, Waverley House, Stanley, Falkland Islands, United Kingdom 7Corresponding author. E-mail: [email protected] Abstract Recent molecular evidence has called into question the identity of skates collected in the waters off the Falkland Islands previously identified as Zearaja chilensis. NADH2 sequence data indicate that these specimens are not conspecific with those currently referred to as Z. chilensis from Chile and, in fact, represent a novel cryptic species. This study aimed to investigate this hypothesis based on morphological comparisons of specimens from the coasts of both western and eastern South America.
    [Show full text]
  • Restoration Planning of Degraded Tropical Forests for Biodiversity and Ecosystem Services
    Restoration planning of degraded tropical forests for biodiversity and ecosystem services Sugeng Budiharta Bachelor of Forestry Master of Science in Conservation Biology A thesis submitted for the degree of Doctor of Philosophy at The University of Queensland in January 2016 School of Biological Sciences Abstract Forest restoration has the potential to mitigate the impact of deforestation and forest degradation. Various global policies have been sought to put restoration into the mainstream agenda including under the Convention on Biological Diversity (CBD) and the program for Reducing Emissions from Deforestation and forest Degradation (REDD+). The Aichi Target of the CBD set a target for at least 15% of degraded ecosystems to be restored by 2020 for key goals including biodiversity conservation, carbon enhancement and the provision of livelihoods. A theoretical framework to underpin decision- making for landscape-scale restoration has been slow to emerge, resulting in a limited contribution from science towards achieving such policy targets. My thesis develops decision frameworks to guide the restoration of degraded tropical forests to enhance biodiversity and the delivery of ecosystem services. In this thesis, three critical questions on how to make better decisions for landscape-scale restoration are addressed by: (a) considering landscape heterogeneity in terms of degradation condition, restoration action and cost, and temporally-explicit restoration benefits; (b) leveraging restoration within competing land uses using emerging policy for offsetting; and (c) enhancing feasibility by accounting for the social and political dimensions related to restoration. I use Kalimantan (Indonesian Borneo) as a case study area, as it represents a region that is globally important in terms of biodiversity and carbon storage.
    [Show full text]
  • Revision of the Sundaland Species of the Genus Dysphaea Selys, 1853 Using Molecular and Morphological Methods, with Notes on Allied Species (Odonata: Euphaeidae)
    Zootaxa 3949 (4): 451–490 ISSN 1175-5326 (print edition) www.mapress.com/zootaxa/ Article ZOOTAXA Copyright © 2015 Magnolia Press ISSN 1175-5334 (online edition) http://dx.doi.org/10.11646/zootaxa.3949.4.1 http://zoobank.org/urn:lsid:zoobank.org:pub:B3123099-882F-4C42-B83B-2BA1C2906F65 Revision of the Sundaland species of the genus Dysphaea Selys, 1853 using molecular and morphological methods, with notes on allied species (Odonata: Euphaeidae) MATTI HÄMÄLÄINEN1, RORY A. DOW2 & FRANK R. STOKVIS3 Naturalis Biodiversity Center, P.O. Box 9517, 2300 RA Leiden, The Netherlands. E-mail: [email protected]; [email protected]; [email protected] Abstract The Sundaland species of the genus Dysphaea were studied using molecular and morphological methods. Four species are recognized: D. dimidiata Selys, D. lugens Selys, D. ulu spec. nov. (holotype ♂, from Borneo, Sarawak, Miri division, Upper Baram, Sungai Pejelai, Ulu Moh, 24 viii 2014; deposited in RMNH) and D. vanida spec. nov. (holotype ♂, from Thailand, Ranong province, Khlong Nakha, Khlong Bang Man, 12–13 v 1999; deposited in RMNH). The four species are described and illustrated for both sexes, with keys provided. The type specimens of the four Dysphaea taxa named by E. de Selys Longchamps, i.e. dimidiata, limbata, semilimbata and lugens, were studied and their taxonomic status is dis- cussed. Lectotypes are designated for D. dimidiata and D. limbata. D. dimidiata is recorded from Palawan (the Philip- pines) for the first time. A molecular analysis using three markers (COI, 16S and 28S) is presented. This includes specimens of three Sundaland species of the genus (D.
    [Show full text]
  • 1 Decline in CPUE of Oceanic Sharks In
    IOTC-2009-WPEB-17 IOTC Working Party on Ecosystems and Bycatch; 12-14 October 2009; Mombasa, Kenya. Decline in CPUE of Oceanic Sharks in the Indian EEZ : Urgent Need for Precautionary Approach M.E. John1 and B.C. Varghese2 1 Fishery Survey of India, Mormugao Zonal Base, Goa - 403 803, India 2 Fishery Survey of India, Cochin Zonal Base, Cochin - 682 005, India Abstract The Catch Per Unit Effort (CPUE) and its variability observed in resources surveys reflect on the standing stock of the resource and the changes in the stock density. Data on the CPUE of sharks obtained in tuna longline survey in the Indian EEZ by Govt. of India survey vessels during 1984 – 2006 were considered in this study. A total effort of 3.092 million hooks yielded 20,884 sharks. 23 species belonging to five families were recorded. Average hooking rate was 0.68 percent which showed high degree of spatio-temporal variability. Sharp decline was observed in the hooking rate from the different regions. The trend in the CPUE is a clear indication of the decline in the abundance of sharks in the different regions of the EEZ, the most alarming scenario being on the west coast as well as the east coast, where the average hooking rate recorded during the last five years was less than 0.1 percent. It is evident from the results of the survey that the standing stock of several species of sharks in the Indian seas has declined to such levels that the sustainability of the resource is under severe stress requiring urgent conservation and management measures.
    [Show full text]
  • 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.
    [Show full text]
  • Copyrighted Material
    06_250317 part1-3.qxd 12/13/05 7:32 PM Page 15 Phylum Chordata Chordates are placed in the superphylum Deuterostomia. The possible rela- tionships of the chordates and deuterostomes to other metazoans are dis- cussed in Halanych (2004). He restricts the taxon of deuterostomes to the chordates and their proposed immediate sister group, a taxon comprising the hemichordates, echinoderms, and the wormlike Xenoturbella. The phylum Chordata has been used by most recent workers to encompass members of the subphyla Urochordata (tunicates or sea-squirts), Cephalochordata (lancelets), and Craniata (fishes, amphibians, reptiles, birds, and mammals). The Cephalochordata and Craniata form a mono- phyletic group (e.g., Cameron et al., 2000; Halanych, 2004). Much disagree- ment exists concerning the interrelationships and classification of the Chordata, and the inclusion of the urochordates as sister to the cephalochor- dates and craniates is not as broadly held as the sister-group relationship of cephalochordates and craniates (Halanych, 2004). Many excitingCOPYRIGHTED fossil finds in recent years MATERIAL reveal what the first fishes may have looked like, and these finds push the fossil record of fishes back into the early Cambrian, far further back than previously known. There is still much difference of opinion on the phylogenetic position of these new Cambrian species, and many new discoveries and changes in early fish systematics may be expected over the next decade. As noted by Halanych (2004), D.-G. (D.) Shu and collaborators have discovered fossil ascidians (e.g., Cheungkongella), cephalochordate-like yunnanozoans (Haikouella and Yunnanozoon), and jaw- less craniates (Myllokunmingia, and its junior synonym Haikouichthys) over the 15 06_250317 part1-3.qxd 12/13/05 7:32 PM Page 16 16 Fishes of the World last few years that push the origins of these three major taxa at least into the Lower Cambrian (approximately 530–540 million years ago).
    [Show full text]
  • Last Kyne Et Al New Species of Wedgefish-Rhynchobatus Cooki 6.6
    PREPRINT http://biotaxa.org/Zootaxa/article/view/zootaxa.4139.2.7 A new species of wedgefish Rhynchobatus cooki (Rhinopristiformes, Rhinidae) from the Indo–West Pacific PETER R. LAST1*, PETER M. KYNE2 & LEONARD J.V. COMPAGNO3 1CSIRO National Research Collections Australia, Australian National Fish Collection, Castray Esplanade, Hobart, TAS, 7001, AUSTRALIA. E-mail: [email protected] 2Research Institute for the Environment and Livelihoods, Charles Darwin University, Casuarina, NT, 0909, AUSTRALIA. E-mail: [email protected] 3Ichthylogist (retired), Cape Town, SOUTH AFRICA *Corresponding author http://www.nespmarine.edu.au/document/new-species-wedgefish-rhynchobatus- cooki-rhinopristiformes-rhinidae-western-pacific 1 PREPRINT http://biotaxa.org/Zootaxa/article/view/zootaxa.4139.2.7 Abstract A new dwarf wedgefish, Rhynchobatus cooki sp. nov. is described from a single female from a Jakarta fish market (Indonesia) and 11 specimens collected at Jurong fish market (Singapore). First collected in 1934, the broader ichthyological community have been aware of this distinctive but little known ray since the late 1990’s. Rhynchobatus cooki is the smallest of the wedgefishes (to 81 cm TL) and has the lowest vertebral count (fewer than 107 centra). It is also distinguishable from its congeners based on its long, hastate snout, very strongly undulate anterior pectoral-fin margin, coloration and aspects of its squamation. The dorsal coloration is mainly dark and distinctively marked with white blotches, spots and streaks, and has a dark cruciate marking on the interorbit and a prominent white border around the body margin. Unlike most other wedgefish species, the snout tip lacks dark blotches and there is no black pectoral-fin marking.
    [Show full text]