DOCSLIB.ORG

WCPTOC2.CHP:Corel VENTURA

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
WCPTOC2.CHP:Corel VENTURA click for previous page Carcharhinidae 1325 Carcharhinus albimarginatus (Rüppell, 1837) Frequent synonyms / misidentifications: None / Carcharhinus longimanus (Poey, 1861); Triaenodon obesus (Rüppell, 1837). FAO names: En - Silvertip shark; Fr - Requin pointe blanche; Sp - Tiburón de puntas blancas. Diagnostic characters: A large, slender to moderately stout shark. Snout moderately long and broadly parabolic, its length subequal to or slightly shorter than mouth width and equal to or greater than internasal space; labial furrows very short; anterior nasal flaps very low; spiracles absent; teeth with serrated edges, upper teeth broadly triangular and erect at front of mouth, progressively oblique posteriorly, without conspicuous cusplets; teeth in lower jaw erect and stout-cusped, serrated. First dorsal upper and lower fin moderately high, with a narrowly rounded apex, its ventral view of head tooth near centre origin over inner margins of pectoral fins; second dorsal fin moderately high, its origin about opposite that of anal fin, its inner margin less than twice its height, and its posterior margin nearly straight; pectoral fins long and slightly falcate, with narrow, pointed tips. Interdorsal ridge present. Colour: dorsal surface dark grey or grey-brown, ventral surface white; all fins have conspicuous white tips and posterior margins. Size: Maximum total length about 3 m; adults mature at 1.6 to 1.99 m; size at birth about 63 to 68 cm. Habitat, biology, and fisheries: A continental and insular species occurring from the surface to a depth of 800 m, close inshore in lagoons and near island dropoffs or well offshore, but not oceanic. Viviparous, number of embryos 1 to 11. Feeds on both bottom and pelagic fish, including rays and octopi. Can be aggressive to divers and is potentially dangerous. Specific information on fisheries for this species is lacking, but it is presumably taken in areas where it occurs. Probably used fresh and dried-salted for human consumption. Distribution: In the western Indian Ocean recorded from East Africa, Madagascar and the Red Sea; in the western Pacific off southern Japan, from Taiwan Province of China southwards to Indonesia, and off northern Australia, eastern New Guinea and the Solomon ? Islands; also known from the eastern Central Pacific. 1326 Sharks Carcharhinus altimus (Springer, 1950) Frequent synonyms / misidentifications: Carcharhinus radamae Fourmanoir, 1961 / Carcharhinus albimarginatus (Rüppell, 1837); C. galapagensis (Snodgrass and Heller, 1905); C. obscurus (Lesueur, 1818). FAO names: En - Bignose shark; Fr - Requin babosse (= Réquiem babosse, Area 31); Sp - Tiburón baboso. Diagnostic characters: Body slender. Snout rounded and moderately long, its length about equal to, or greater than, mouth width, and greater than internasal space; labial furrows very short; anterior nasal flaps expanded as low, broadly triangular lobes; spiracles absent; teeth with serrated edges, upper teeth broadly triangular and erect in front of mouth, with very high cusps, progressively oblique posteriorly; teeth in lower jaw erect and narrow-cusped. First dorsal fin ventral view of head upper and lower moderately high with a narrowly rounded apex, its tooth near centre origin over inner margins of pectoral fins; second dorsal fin high, its origin about opposite that of anal fin, its inner margin less than 1.5 times the fin-height; pectoral fins long and not strongly falcate, broad-tipped but with angular apices. A high interdorsal ridge present. Colour: back greyish; belly whitish; inner corners of pectoral fins blackish. Size: Maximum total length to about 3 m; commonly to 2.4 m; size at birth probably 70 to 90 cm. Habitat, biology, and fisheries: Usually found in the edges of the continental shelves and uppermost slopes near the bottom, ranging from a depth of 30 to 430 m, but commonly between 80 and 220 m; rare in shallow waters. Viviparous. Bottom-dwelling; feeds chiefly on fishes and cephalopods. Apparently taken on deep-set longlines, also in bottom trawls and probably on hook-and-line and with gill nets. Utilized for fishmeal, liver oil, and shagreen. Distribution: Circumglobal, with patchy records in tropical and warm seas. ? ? Carcharhinidae 1327 Carcharhinus amblyrhynchoides (Whitley, 1934) Frequent synonyms / misidentifications: Carcharhinus pleurotaenia (Bleeker, 1852) / Carcharhinus limbatus (Valenciennes in Müller and Henle, 1839), C. brevipinna (Müller and Henle, 1839). FAO names: En - Graceful shark; Fr - Requin gracile; Sp - Tiburón grácil. Diagnostic characters: A medium-sized stout shark. Snout pointed but short, its length less than mouth width, 1.0 to 1.2 times internasal space; labial furrows very short; anterior nasal flaps very low; no spiracles; upper and lower teeth with serrated edges, including cusps, upper teeth with narrow cusps, and no prominent cusplets, not broadly triangular, cusps of upper anterior teeth erect, laterals erect to oblique; lower teeth erect and narrow-cusped. First dorsal fin moderately ventral view of head upper and lower high, with an angular or narrowly rounded apex tooth near centre and short inner margin, its origin over inner margins of pectoral fins; origin of second dorsal fin about opposite anal-fin origin; second dorsal fin moderately high, its inner margin less than twice its height, its posterior margin concave; pectoral fins moderately long and falcate, with narrow, pointed tips. No dermal ridge between dorsal fins. Colour: grey or grey-brown on dorsal surface, white or cream below, with a conspicuous band of white on sides from pelvic fins to first dorsal fin; pectoral, dorsal, and pelvic fins, and ventral lobe of caudal fin black or dusky-tipped, sometimes inconspicuously so. Size: Maximum total length about 1.8 m; size at birth about 52 to 55 cm. Habitat, biology, and fisheries: A poorly known, inshore, coastal pelagic species. Viviparous. Feeds mainly on fish, also crustaceans and cephalopods. Taken on longlines and drifting gill nets; in the area it is caught in the Gulf of Thailand, northern Australia and probably elsewhere where it occurs. Utilized fresh and dried salted for human consumption; fins used in the oriental sharkfin trade; liver oil is processed for vitamins. ? Distribution: In the western Indian Ocean from the Gulf of Aden, southern India and Sri Lanka, in the western Pacific ? from Viet Nam, Thailand, the Philippines, Java, Borneo, Australia, and New Guinea. 1328 Sharks Carcharhinus amblyrhynchos (Bleeker, 1856) Frequent synonyms / misidentifications: Carcharhinus menisorrah (Valenciennes in Müller and Henle, 1839); ? Carcharhinus wheeleri Garrick, 1982 / None. FAO names: En -Greyreefshark;Fr - Requin dagsit; Sp - Tiburón de arrecifes. Diagnostic characters: A medium-sized shark. Body rather stout. Snout broadly rounded, its length less than mouth width, equal to or somewhat greater than internasal space; labial furrows very short; anterior nasal flaps very low, no spiracles; teeth with serrated edges but with cusplets low or absent on upper teeth, always absent on lowers; upper teeth narrowly upper and lower triangular, high, moderately narrow and ventral view of head tooth near centre erect-cusped in front of mouth, progressively oblique posteriorly; teeth in lower jaw mostly erect and narrow-cusped. First dorsal fin moderately high and with narrowly rounded apex, its origin over inner margins of pectoral fins; origin of second dorsal fin about opposite anal-fin origin; second dorsal fin moderately high, its inner margin less than 1.5 times the fin height and its posterior margin deeply notched; pectoral fins long and not strongly falcate, with narrow, angular apices. A weak interdorsal ridge present between dorsal fins, or no ridge. Colour: dark grey or bronze-grey above, white below; caudal fin with a conspicuous wide black posterior margin; undersides of pectoral and pelvic fins with black tips and posterior margins, but fins otherwise not conspicuously black, or white-tipped except for white-tipped first dorsal fin in some individuals. Size: Maximum total length about 2.55 m; commonly to 1.8 m; size at birth about 50 to 60 cm Habitat, biology, and fisheries: An inshore shark, most common over coral reefs, often near the bottom. Viviparous, number of young per litter 1 to 6. A bottom-feeding shark, eating small reef fishes and octopuses. Aggressive, particularly when attracted by spearfishing or when cornered by divers: when provoked, gives an exaggerated swimming display, with back arched and pectoral fins thrust downward, followed by a swift attack and bite if the provocation continues. Several divers have been bitten by this shark in the western Pacific, none fatally, and even small diver-operated submarines have been attacked. Fished in Thailand and elsewhere mainly for the flesh and fins. Distribution: Known from Madagascar and the Mauritius-Seychelles area, possibly also from India; also Red Sea to South Africa if Carcharhinus wheeleri is synonymized with this species; in the western Central Pacific from Sumatra eastward to the Philippines, Australia, New Guinea, Hawaii, and the Tuamotu Archipelago. Carcharhinidae 1329 Carcharhinus amboinensis (Müller and Henle, 1839) Frequent synonyms / misidentifications: Triaenodon obtusus Day, 1878 / Carcharhinus leucas (Valenciennes in Müller and Henle, 1839); Glyphis gangeticus (Müller and Henle, 1839). FAO names: En - Pigeye shark; Fr - Requin balestrine; Sp - Tiburón baleta. Diagnostic characters: A medium to large, stout-bodied shark. Snout extremely short (usually
Load more

Recommended publications
  • Review of the Fishery Status for Whaler Sharks (Carcharhinus Spp.) in South Australian and Adjacent Waters
    Review of the Fishery Status for Whaler Sharks (Carcharhinus spp.) in South Australian and adjacent waters Keith Jones FRDC Project Number 2004/067 January 2008 SARDI Aquatic Sciences Publication No. F2007/000721-1 SARDI Research Series No. 154 1 Review of the fishery status for whaler sharks in South Australian and adjacent waters. Final report to the Fisheries Research and Development Corporation. By: G.Keith Jones South Australian Research & Development Institute 2 Hamra Ave, West Beach SA 5022 (Current Address: PIRSA (Fisheries Policy) GPO Box 1625 Adelaide, SA 5001. Telephone: 08 82260439 Facsimile: 08 82262434 http://www.pirsa.saugov.sa.gov.au DISCLAIMER The author warrants that he has taken all reasonable care in producing this report. The report has been through the SARDI internal review process, and has been formally approved for release by the Chief Scientist. Although all reasonable efforts have been made to ensure quality, SARDI Aquatic Sciences does not warrant that the information in this report is free from errors or omissions. SARDI does not accept any liability for the contents of this report or for any consequences arising from its use or any other reliance placed upon it. © Copyright Fisheries Research and Development Corporation and South Australian Research & Development Institute, 2005.This work is copyright. Except as permitted under the Copyright Act 1968 (Commonwealth), no part of this publication may be reproduced by any process, electronic or otherwise, without the specific permission of the copyright owners. Neither may information be stored electronically in any form whatsoever without such permission. The Fisheries Research and Development Corporation plans, invests in and manages fisheries research and development throughout Australia.
    [Show full text]
  • A Practical Guide to Effective Design and Management of Mpas For
    A PRACTICAL GUIDE TO THE REPORT EFFECTIVE DESIGN AND 2019 MANAGEMENT OF MPAs FOR SHARKS AND RAYS This project has been a collaboration between the Centre LEAD AUTHOR: for Sustainable Tropical Fisheries and Aquaculture Cassandra L Rigby, James Cook (CSTFA) at James Cook University, Australia, and WWF. University ABOUT WWF AUTHORS: WWF is one of the largest and most experienced Colin Simpendorfer, James Cook independent conservation organizations, with over University 5 million supporters and a global network active in Andy Cornish, WWF-Hong Kong more than 100 countries. WWF´s mission is to stop the degradation of the planet´s natural environment and to build a future in which humans live in harmony with HOW TO CITE THIS WORK: nature, by conserving the world´s biological diversity, Rigby, C.L., Simpfendorfer, C.A. ensuring that the use of renewable resources is and A. Cornish (2019) A Practical sustainable, and promoting the reduction of pollution Guide to Effective Design and and wasteful consumption. WWF works to reverse Management of MPAs for Sharks declining shark populations through Sharks: Restoring and Rays. WWF, Gland, Switzerland. the Balance, a global initiative. www.panda.org DESIGN AND PRODUCTION: sharks.panda.org Evan Jeffries, Catherine Perry – Swim2Birds Ltd ABOUT CSTFA www.swim2birds.co.uk Research within the Centre for Sustainable Tropical Fisheries and Aquaculture (CSTFA) focuses not only Published in May 2019 by WWF on the aquatic and aquaculture systems that produce – World Wide Fund for Nature, food, but also the industries and communities that Gland, Switzerland utilise them. Multidisciplinary collaborations between our researchers provide the synergies to address Any reproduction in full or part substantial research problems in a way that individual must mention the title and credit research groups cannot.
    [Show full text]
  • Recreational Harvest of Sharks and Rays in Western Australia Is Only a Minor Component of the Total Harvest
    Recreational Harvest of Sharks and Rays in Western Australia is only a Minor Component of the Total Harvest Matias Braccini ( [email protected] ) Department of Primary Industries and Regional Development Eva Lai Department of Primary Industries and Regional Development Karina Ryan Department of Primary Industries and Regional Development Stephen Taylor Department of Primary Industries and Regional Development Research Article Keywords: elasmobranch, conservation, management, sheries, catch reconstruction Posted Date: February 23rd, 2021 DOI: https://doi.org/10.21203/rs.3.rs-225321/v1 License: This work is licensed under a Creative Commons Attribution 4.0 International License. Read Full License Page 1/20 Abstract Sharks and rays are of global conservation concern with an increasing number of species at risk of extinction, mostly attributed to overshing by commercial shing. Their recreational harvest is poorly known but it can be of similar magnitude to the commercial harvest in some regions. We quantied the recreational harvest of sharks and rays in Western Australia, a region with a marine coastline of > 20,000 km. We recorded 33 species/taxonomic groups but the harvest was dominated by dusky and bronze whalers, blacktip reef shark, gummy shark, Port Jackson shark, wobbegongs, and rays and skates. Most species caught were released (85% of all individuals), although gummy and whiskery sharks were typically retained. There was a clear latitudinal gradient of species composition with tropical and subtropical species of the genus Carcharhinus dominating in the north and temperate species of the families Triakidae, Carcharhinidae, Heterodontidae and Rajidae dominating in the south. The recreational harvest was negligible compared with commercial landings.
    [Show full text]
  • Nervous Shark, Carcharhinus Cautus
    Published Date: 1 March 2019 Nervous Shark, Carcharhinus cautus Report Card Sustainable assessment IUCN Red List IUCN Red List Australian Refer to Global Assessment Global Data deficient Assessment Assessment Assessors Morgan, D.L., Bennett, M.B. & Kyne, P.M. Taken mostly in northern Australia where catches are considered Report Card Remarks sustainable Summary The Nervous Shark is a small shark commonly found in shallow, warm coastal waters throughout its distribution. It has moderate reproductive rates. It is taken as bycatch or discarded in coastal gillnet and trawl Source: CSIRO national Fish Collection. License: CC By Attribution. fisheries throughout northern Australia. Mortality rates in these fisheries in northern Australia are considered to be sustainable. Little is known on its population status elsewhere. Considering northern Australia represents the majority of the Nervous Sharks distribution it is assessed as Least Concern (IUCN) and in Australia, Sustainable (SAFS). Distribution The Nervous Shark is found on continental and insular shelves in tropical and sub-tropical waters of northern Australia, southern Papua New Guinea and the Solomon Islands (Last and Stevens, 2009). Within Australia, it is found from Shark Bay (Western Australia), through the Northern Territory and Queensland to Moreton Bay (White and Potter 2004, Last and Stevens 2009, Gutteridge 2012). Stock structure and status In Australia there is currently no information on population size, structure, or trend for the Nervous Shark. It is considered to be sustainably harvested by commercial fisheries in Australia. It is abundant in regional coastal waters of Western Australia (Shark Bay) (White and Potter 2004) and Northern Territory (Darwin Harbour) (Lyle 1987).
    [Show full text]
  • An Overview of Shark Utilisation in the Coral Triangle Region (PDF, 550
    WORKING TOGETHER FOR SUSTAINABLE SHARK FISHERIES AN OVERVIEW OF SHARK UTILISATION IN THE CORAL TRIANGLE REGION Written by Mary Lack Director, Shellack Pty Ltd Glenn Sant Fisheries Programme Leader, TRAFFIC & Senior Fellow, ANCORS Published in September 2012 This report can be downloaded from wwf.panda.org/coraltriangle Citation Lack M. and Sant G. (2012). An overview of shark utilisation in the Coral Triangle region. TRAFFIC &WWF. Photo cover © naturepl.com / Jeff Rotman / WWF-Canon Thanks to the Rufford Lang Foundation for supporting the development of this publication 2 An Overview Of Shark Utilisation In The Coral Triangle Region ACRONYMS ASEAN Association of Southeast Asian Nations BFAR Bureau of Fisheries and Aquatic Resources (the Philippines) CCSBT Commission for the Conservation of Southern Bluefin Tuna CITES Convention on International Trade in Endangered Species of Wild Fauna and Flora CMM Conservation and Management Measure CMS Convention on Migratory Species of Wild Animals CNP Co-operating Non-Contracting party COFI Committee on Fisheries (of FAO) CoP Conference of the Parties (to CITES) EEZ Exclusive Economic Zone EU European Union FAO Food and Agriculture Organization of the United Nations IOTC Indian Ocean Tuna Commission IPOA-Sharks International Plan of Action for the Conservation and Management of Sharks IUU Illegal, Unreported and Unregulated (fishing) MoU Memorandum of Understanding on the Conservation of Migratory Sharks (CMS) nei Not elsewhere included NPOA-Sharks National Plan of Action for the Conservation and
    [Show full text]
  • Species Composition of the Largest Shark Fin Retail-Market in Mainland
    www.nature.com/scientificreports OPEN Species composition of the largest shark fn retail‑market in mainland China Diego Cardeñosa1,2*, Andrew T. Fields1, Elizabeth A. Babcock3, Stanley K. H. Shea4, Kevin A. Feldheim5 & Demian D. Chapman6 Species‑specifc monitoring through large shark fn market surveys has been a valuable data source to estimate global catches and international shark fn trade dynamics. Hong Kong and Guangzhou, mainland China, are the largest shark fn markets and consumption centers in the world. We used molecular identifcation protocols on randomly collected processed fn trimmings (n = 2000) and non‑ parametric species estimators to investigate the species composition of the Guangzhou retail market and compare the species diversity between the Guangzhou and Hong Kong shark fn retail markets. Species diversity was similar between both trade hubs with a small subset of species dominating the composition. The blue shark (Prionace glauca) was the most common species overall followed by the CITES‑listed silky shark (Carcharhinus falciformis), scalloped hammerhead shark (Sphyrna lewini), smooth hammerhead shark (S. zygaena) and shortfn mako shark (Isurus oxyrinchus). Our results support previous indications of high connectivity between the shark fn markets of Hong Kong and mainland China and suggest that systematic studies of other fn trade hubs within Mainland China and stronger law‑enforcement protocols and capacity building are needed. Many shark populations have declined in the last four decades, mainly due to overexploitation to supply the demand for their fns in Asia and meat in many other countries 1–4. Mainland China was historically the world’s second largest importer of shark fns and foremost consumer of shark fn soup, yet very little is known about the species composition of shark fns in this trade hub2.
    [Show full text]
  • Size, Sex and Length at Maturity of Four Common Sharks Caught from Western Indonesia
    Mar. Res. Indonesia Vol.32, No.1, 2007: 7-19 SIZE, SEX AND LENGTH AT MATURITY OF FOUR COMMON SHARKS CAUGHT FROM WESTERN INDONESIA Fahmi and Kurnaen Sumadhiharga Research Center for Oceanography — Indonesian Institute of Sciences Jl. Pasir Putih I, Jakarta Utara 14430, Indonesia e-mail: fahmi_lipi@ yahoo.com ABSTRACT A study on four common shark species in Indonesia, the spinner shark Carcharhinus brevipinna (Muller and Henle, 1839), silky shark Carcharhinus falciformis (Bibron, 1839), spot-tail shark Carcharhinus sorrah (Valenciennes, 1839) and scalloped hammerhead Sphyrna lewini (Griffith and Smith, 1834) was conducted at several shark landing sites in western Indonesia from March 2002 to December 2004. Data were collected from the surveyed areas including the length of frequency, sex composition and length at maturity. In general, they were caught at size smaller than their maturity size. The proportion of immature C. brevipinna, C. falciformis, C. sorrah and S. lewini to their total number recorded at the surveyed area during the study were about 87%, 50%, 80% and 65%, respectively. According to the length at maturity, females generally attained their maturity in larger size than males. Some factors contributing the catches in immature size and conservation status of those four species were also discussed. Keywords: Shark, Size composition, Western Indonesia INTRODUCTION and their biology in Indonesia are very few. Attention on shark in Indonesia starts in 2001 Shark fishes are one of the most important through a cooperative study between Indonesia fishery commodities in Indonesia. They are caught and Australia on elasmobranch fishes. Several either as a target of fishing in artisanal fisheries or preliminary surveys have been conducted since as by catch in the pelagic tuna fisheries.
    [Show full text]
  • And Their Functional, Ecological, and Evolutionary Implications
    DePaul University Via Sapientiae College of Science and Health Theses and Dissertations College of Science and Health Spring 6-14-2019 Body Forms in Sharks (Chondrichthyes: Elasmobranchii), and Their Functional, Ecological, and Evolutionary Implications Phillip C. Sternes DePaul University, [email protected] Follow this and additional works at: https://via.library.depaul.edu/csh_etd Part of the Biology Commons Recommended Citation Sternes, Phillip C., "Body Forms in Sharks (Chondrichthyes: Elasmobranchii), and Their Functional, Ecological, and Evolutionary Implications" (2019). College of Science and Health Theses and Dissertations. 327. https://via.library.depaul.edu/csh_etd/327 This Thesis is brought to you for free and open access by the College of Science and Health at Via Sapientiae. It has been accepted for inclusion in College of Science and Health Theses and Dissertations by an authorized administrator of Via Sapientiae. For more information, please contact [email protected]. Body Forms in Sharks (Chondrichthyes: Elasmobranchii), and Their Functional, Ecological, and Evolutionary Implications A Thesis Presented in Partial Fulfilment of the Requirements for the Degree of Master of Science June 2019 By Phillip C. Sternes Department of Biological Sciences College of Science and Health DePaul University Chicago, Illinois Table of Contents Table of Contents.............................................................................................................................ii List of Tables..................................................................................................................................iv
    [Show full text]
  • Species Carcharhinus Brachyurus (Günther, 1870
    FAMILY Carcharhinidae Jordan & Evermann, 1896 - requiem sharks [=Triaenodontini, Prionidae, Cynocephali, Galeocerdini, Carcharhininae, Eulamiidae, Loxodontinae, Scoliodontinae, Galeolamnidae, Rhizoprionodontini, Isogomphodontini] GENUS Carcharhinus Blainville, 1816 - requiem sharks [=Aprion, Aprionodon, Bogimba, Carcharias, Eulamia, Galeolamna, Galeolamnoides, Gillisqualus, Gymnorhinus, Hypoprion, Hypoprionodon, Isoplagiodon, Lamnarius, Longmania, Mapolamia, Ogilamia, Platypodon, Pterolamia, Pterolamiops, Uranga, Uranganops] Species Carcharhinus acarenatus Moreno & Hoyos, 1983 - Moroccan shark Species Carcharhinus acronotus (Poey, 1860) - blacknose shark [=remotus] Species Carcharhinus albimarginatus (Rüppell, 1837) silvertip shark [=platyrhynchus] Species Carcharhinus altimus (Springer, 1950) - bignose shark [=radamae] Species Carcharhinus amblyrhynchoides (Whitley, 1934) - graceful shark Species Carcharhinus amblyrhynchos (Bleeker, 1856) - grey reef shark [=coongoola, fowleri, nesiotes, tufiensis] Species Carcharhinus amboinensis (Müller & Henle, 1839) - Java shark [=brachyrhynchos, henlei, obtusus] Species Carcharhinus borneensis (Bleeker, 1858) - Borneo shark Species Carcharhinus brachyurus (Günther, 1870) - copper shark, bronze whaler, narrowtooth shark [=ahenea, improvisus, lamiella, remotoides, rochensis] Species Carcharhinus brevipinna (Müller & Henle, 1839) - great blacktip shark [=brevipinna B, calamaria, caparti, johnsoni, maculipinnis, nasuta] Species Carcharhinus cautus (Whitley, 1945) - nervous shark Species Carcharhinus
    [Show full text]
  • PRESENT STATUS of Silky Shark, Thresher Sharks, Mobulid Rays and Banggai Cardinafish in Indonesia
    Regional Experts Mee1ng on Commercially-Exploited Aqua1c Species: Sharks 16-17 May 2016 , Bangkok, Thailand PRESENT STATUS of Silky shark, Thresher sharks, Mobulid rays and Banggai cardinafish in Indonesia Dharmadi Center for Fisheries Research and Development, Agency of Marine and Fisheries Research and Development, Ministry of Marine Affairs and Fisheries. Jl. Pasir Putih II, Ancol Timur Jakarta 14430 Indonesia •Email: dharmadi.shark.gmail.com Introduction Indonesia as a nation is home to more shark and ray fishing activities than any other and is one of the highest volume exporters of sharks fins in the world (Blaber et al., 2009). Over the past several decades, national shark production in particular has declined by 28,30%, from 63,366 tons in 2000 to 68 366 tonnes in 2014 (DGCF, 2016). 80 000 70 000 60 000 50 000 (Source : DGCF, 2016) 40 000 30 000 Production (t) Production 20 000 10 000 - 76 78 80 82 84 86 88 90 92 94 96 98 00 02 04 06 08 10 12 14 Trend production of sharks based on shark group in 2002-2014. 70 000 Thresher sharks 60 000 Requiem sharks Mackerel sharks 50 000 Hammerhead sharks 40 000 Dogfish sharks 30 000 Productioni (t) 20 000 10 000 - 02 03 04 05 06 07 08 09 10 11 12 13 14 (Source : DGCF, 2016) Trend production of Thresher sharks in 200-2014 70 000 60 000 50 000 40 000 30 000 Production (t) 20 000 10 000 - 02 03 04 05 06 07 08 09 10 11 12 13 14 (Source : DGCF, 2016) Species composition of sharks landed at Cilacap (2015) 1 Alopias pelagicus Pelagic Thresher 967 25.03 2 Alopias superciliosus Bigeye Thresher 674 17.45 3 Isurus oxyrinchus Shortfin Mako 62 1.60 4 Isurus paucus Longfin Mako 36 0.93 C.
    [Show full text]
  • Drivers of Juvenile Shark Biodiversity and Abundance in Inshore Ecosystems of the Great Barrier Reef
    Final Report Drivers of juvenile shark biodiversity and abundance in inshore ecosystems of the Great Barrier Reef Colin A. Simpfendorfer, Andrew J. Tobin, Michelle R. Heupel, Peter Yates and Samantha Munroe Drivers of juvenile shark biodiversity and abundance in inshore ecosystems of the Great Barrier Reef Final Summary Colin A Simpfendorfer1, Andrew J Tobin1, Michelle R Heupel2,1, Peter Yates1 and Samantha Munroe1,3 1 Centre for Sustainable Tropical Fisheries and Aquaculture & College of Marine and Environmental Sciences, James Cook University 2 Australian Institute of Marine Science 3 AIMS@JCU Supported by the Australian Government’s National Environmental Research Program Project 6.2 Drivers of juvenile shark biodiversity and abundance in inshore ecosystems of the Great Barrier Reef © JCU National Library of Australia Cataloguing-in-Publication entry: 978-1-925088-53-3 This report should be cited as: Simpfendorfer, C. A., Tobin, A. J., Heupel, M. R., Yates, P. and Munroe, S. (2014) Drivers of juvenile shark biodiversity and abundance in inshore ecosystems of the Great Barrier Reef. Report to the National Environmental Research Program. Reef and Rainforest Research Centre Limited, Cairns (28pp.). Published by the Reef and Rainforest Research Centre on behalf of the Australian Government’s National Environmental Research Program (NERP) Tropical Ecosystems (TE) Hub. The Tropical Ecosystems Hub is part of the Australian Government’s Commonwealth National Environmental Research Program. The NERP TE Hub is administered in North Queensland by the Reef and Rainforest Research Centre Limited (RRRC). The NERP Tropical Ecosystem Hub addresses issues of concern for the management, conservation and sustainable use of the World Heritage listed Great Barrier Reef (GBR) and its catchments, tropical rainforests including the Wet Tropics World Heritage Area (WTWHA), and the terrestrial and marine assets underpinning resilient communities in the Torres Strait, through the generation and transfer of world-class research and shared knowledge.
    [Show full text]
  • Restricted Movements and Mangrove Dependency of the Nervous Shark Carcharhinus Cautus in Nearshore Coastal Waters
    Journal of Fish Biology (2015) 87, 323–341 doi:10.1111/jfb.12724, available online at wileyonlinelibrary.com Restricted movements and mangrove dependency of the nervous shark Carcharhinus cautus in nearshore coastal waters L. Escalle*†,C.W.Speed‡,M.G.Meekan‡, W. T. White§, R. C. Babcock‖,R.D.Pillans‖ and C. Huveneers¶** *Institut Universitaire Européen de la Mer, Rue Dumont d’Urville, 29280 Plouzané, France, ‡Australian Institute of Marine Science, The UWA Oceans Institute (M096), 35 Stirling Hwy, Crawley, WA 6009, Australia, §CSIRO Ocean & Atmosphere Flagship, G.P.O. Box 1538, Hobart, Tas 7000, Australia, ‖CSIRO Ocean & Atmosphere Flagship, Ecosciences Precinct, G.P.O. Box 2583, Qld 4001, Australia, ¶School of Biological Sciences, Flinders University, Adelaide, SA, Australia and **South Australian Research and Development Institute, Adelaide, SA, Australia (Received 1 December 2014, Accepted 10 May 2015) This study used a network of acoustic receivers deployed around a no-take zone in Mangrove Bay, within the Ningaloo Reef Marine Park in Western Australia, to study residency and habitat prefer- ence of a small coastal shark, the nervous shark Carcharhinus cautus. Twelve C. cautus were tagged with acoustic tags and monitored for up to 579 days. Based on individuals detected within the receiver array for at least 2 months, C. cautus had small core (50% kernel utilization distribution, KUD) and home ranges (95% KUD) of 0⋅66 and 3⋅64 km2, respectively, and showed a strong habitat prefer- ence for mangroves, which are only found in the no-take zone. This resulted in C. cautus spending most of their detected time within the no-take zone boundaries (mean = 81⋅5%), showing that such a protected area could be beneficial to protect this species from extensive fishing pressure andlocal depletion, where required.
    [Show full text]