Sharks for the Aquarium and Considerations for Their Selection1 Alexis L
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Fig. 125 Sharks of the World, Vol. 2 161 Fig. 125 Orectolobus Sp. A
click for previous page Sharks of the World, Vol. 2 161 Orectolobus sp. A Last and Stevens, 1994 Fig. 125 Orectolobus sp. A Last and Stevens, 1994, Sharks Rays Australia: 128, pl. 26. Synonyms: None. Other Combinations: None. FAO Names: En - Western wobbegong; Fr - Requin-tapis sombre; Sp - Tapicero occidental. LATERAL VIEW DORSAL VIEW Fig. 125 Orectolobus sp. A UNDERSIDE OF HEAD Field Marks: Flattened benthic sharks with dermal lobes on sides of head, symphysial groove on chin; a strongly contrasting, variegated colour pattern of conspicuous broad dark, dorsal saddles with light spots and deeply corrugated edges but without conspicuous black margins, interspaced with lighter areas and conspicuous light, dark-centred spots but without numerous light O-shaped rings; also, mouth in front of eyes, long, basally branched nasal barbels, nasoral grooves and circumnarial grooves, two rows of enlarged fang-like teeth in upper jaw and three in lower jaw; first dorsal-fin origin over rear half of pelvic-fin bases. Diagnostic Features: Nasal barbels with one small branch. Four dermal lobes below and in front of eye on each side of head; dermal lobes behind spiracles unbranched or weakly branched and slender. Low dermal tubercles or ridges present on back in young, lost in adults. Interdorsal space somewhat shorter than inner margin of first dorsal fin, about one-fourth of first dorsal-fin base. Origin of first dorsal fin over about last third of pelvic-fin base. First dorsal-fin height about three-fourths of base length. Colour: colour pattern very conspicuous and highly variegated, dorsal surface of body with conspicuous broad, dark rectangular saddles with deeply corrugated margins, not black-edged, dotted with light spots but without numerous O-shaped light rings; saddles not ocellate in appearance; interspaces between saddles light, with numerous broad dark blotches. -
Western Spotted Catshark, Asymbolus Occiduus
Published Date: 1 March 2019 Western Spotted Catshark, Asymbolus occiduus Report Card Sustainable assessment IUCN Red List IUCN Red List Australian Endemic to Australia Global Least Concern Assessment Assessment Assessors Simpfendorfer, C. & Heupel, M.R. Report Card Remarks Little known shark with limited fishing across its range Summary The Western Spotted Catshark is a small, little known temperate catshark. It is endemic to southern Australia and has a reasonably large geographic and depth range. The species is unlikely to Source: CSIRO National Fish Collection. License: CC BY Attribution be negatively affected by commercial fisheries because there is limited fishing throughout its range. Therefore, it is assessed as Least Concern (IUCN) and Sustainable (SAFS). Distribution The Western Spotted Catshark is distributed along the southern and western coasts of Australia from Fowlers Bay (South Australia) to Perth (Western Australia) (Last and Stevens 2009). Stock structure and status There is currently no information on population size, structure, or trend for the species. Fisheries The Western Spotted Catshark is caught incidentally and very infrequently in the Southern and Eastern Scalefish and Shark Fishery (SESSF). An estimated 69 kg of the species were caught and discarded annually from 2000 to 2006 (Walker and Gason 2007). Habitat and biology The Western Spotted Catshark is found at depths of 98 to 400 m and is most abundant on the outer continental shelf and common off the Western Australian coast. The biology of the species is almost entirely unknown. Adults and juveniles differ significantly in their colour patterns and the association between the two forms was only made recently (Last and Stevens 2009). -
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. -
NPOA Sharks Booklet.Indd
National Plan of Action for the Conservation and Management of Sharks (NPOA-Sharks) November 2013 South Africa Department of Agriculture, Forestry and Fisheries Private Bag X2, Rogge Bay, 8012 Tel: 021 402 3911 Fax: +27 21 402 3364 www.daff.gov.za Design and Layout: FNP Communications and Gerald van Tonder Photographs courtesy of: Department of Agriculture, Forestry and Fisheries (DAFF), Craig Smith, Charlene da Silva, Rob Tarr Foreword South Africa’s Exclusive Economic Zone is endowed with a rich variety of marine living South Africa is signatory to the Code of Conduct for Responsible Fisheries – voluntarily agreed to by members of the United Nations Food and Agriculture Organisation (FAO) – and, as such, is committed to the development and implementation of National Plans of Action (NPOAs) as adopted by the twenty-third session of the FAO Committee on Fisheries in February 1999 and endorsed by the FAO Council in June 1999. Seabirds – aimed at reducing incidental catch and promoting the conservation of seabirds Fisheries and now regularly conducts Ecological Risk Assessments for all the commercial practices. Acknowledging the importance of maintaining a healthy marine ecosystem and the possibility of major detrimental effects due to the disappearance of large predators, South from the list of harvestable species. In accordance with international recommendations, South Africa subsequently banned the landing of a number of susceptible shark species, including oceanic whitetip, silky, thresher and hammerhead sharks. improves monitoring efforts for foreign vessels discharging shark products in its ports. To ensure long-term sustainability of valuable, but biologically limited, shark resources The NPOA-Sharks presented here formalises and streamlines ongoing efforts to improve conservation and management of sharks caught in South African waters. -
First Record of Swimming Speed of the Pacific Sleeper Shark Somniosus
Journal of the Marine First record of swimming speed of the Pacific Biological Association of the United Kingdom sleeper shark Somniosus pacificus using a baited camera array cambridge.org/mbi Yoshihiro Fujiwara , Yasuyuki Matsumoto, Takumi Sato, Masaru Kawato and Shinji Tsuchida Original Article Research Institute for Global Change (RIGC), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 2-15 Yokosuka, Kanagawa 237-0061, Japan Cite this article: Fujiwara Y, Matsumoto Y, Sato T, Kawato M, Tsuchida S (2021). First record of swimming speed of the Pacific Abstract sleeper shark Somniosus pacificus using a baited camera array. Journal of the Marine The Pacific sleeper shark Somniosus pacificus is one of the largest predators in deep Suruga Biological Association of the United Kingdom Bay, Japan. A single individual of the sleeper shark (female, ∼300 cm in total length) was 101, 457–464. https://doi.org/10.1017/ observed with two baited camera systems deployed simultaneously on the deep seafloor in S0025315421000321 the bay. The first arrival was recorded 43 min after the deployment of camera #1 on 21 July 2016 at a depth of 609 m. The shark had several remarkable features, including the Received: 26 July 2020 Revised: 14 April 2021 snout tangled in a broken fishing line, two torn anteriormost left-gill septums, and a parasitic Accepted: 14 April 2021 copepod attached to each eye. The same individual appeared at camera #2, which was First published online: 18 May 2021 deployed at a depth of 603 m, ∼37 min after it disappeared from camera #1 view. Finally, the same shark returned to camera #1 ∼31 min after leaving camera #2. -
SHARKS (From Page 24) There Are Close to 500 Species of Sharks
SHARKS (from page 24) There are close to 500 species of sharks worldwide, Wetherbee Blue shark. These oceanic sharks are long and skinny and said. They range in size from the 8-inch dwarf dogshark to the 60- can grow to be 13 feet in length and weigh 450 pounds. These foot whale shark. Their habitat ranges from coastal areas to the “beautiful” sharks are excellent swimmers. Mating between males open ocean, from Arctic waters to tropical seas, from surface and females is waters to abyssal depths. violent, as the males often bite Spiny and smooth dogfish. Despite sharing the same surname, the females. To these two coastal shark species aren’t closely related. Dogfish withstand the get their violence of name mating, the because female's skin is they often three times as thick as that of their male counterparts. Although travel and not good to eat, blues are the world’s most fished shark species. hunt in They are harvested for their fins, skin, tails and flesh. Their teeth packs. Both and jaws are also harvested for commercial uses. species migrate into the area in the warmer months, and a few remain Mako shark. This oceanic species is one of the fastest fish in through the winter. They have little teeth, and can grow to be 5 the ocean, with speeds up to 40 mph or so. They also are a feet long. Spiny dogfish can arch their backs and inject venom popular seafood into predators from their dorsal spines. Thousands are harvested worldwide. They can annually for use in U.K. -
Stomach Content Analysis of Short-Finned Pilot Whales
f MARCH 1986 STOMACH CONTENT ANALYSIS OF SHORT-FINNED PILOT WHALES h (Globicephala macrorhynchus) AND NORTHERN ELEPHANT SEALS (Mirounga angustirostris) FROM THE SOUTHERN CALIFORNIA BIGHT by Elizabeth S. Hacker ADMINISTRATIVE REPORT LJ-86-08C f This Administrative Report is issued as an informal document to ensure prompt dissemination of preliminary results, interim reports and special studies. We recommend that it not be abstracted or cited. STOMACH CONTENT ANALYSIS OF SHORT-FINNED PILOT WHALES (GLOBICEPHALA MACRORHYNCHUS) AND NORTHERN ELEPHANT SEALS (MIROUNGA ANGUSTIROSTRIS) FROM THE SOUTHERN CALIFORNIA BIGHT Elizabeth S. Hacker College of Oceanography Oregon State University Corvallis, Oregon 97331 March 1986 S H i I , LIBRARY >66 MAR 0 2 2007 ‘ National uooarac & Atmospheric Administration U.S. Dept, of Commerce This report was prepared by Elizabeth S. Hacker under contract No. 84-ABA-02592 for the National Marine Fisheries Service, Southwest Fisheries Center, La Jolla, California. The statements, findings, conclusions and recommendations herein are those of the author and do not necessarily reflect the views of the National Marine Fisheries Service. Charles W. Oliver of the Southwest Fisheries Center served as Contract Officer's Technical Representative for this contract. ADMINISTRATIVE REPORT LJ-86-08C CONTENTS PAGE INTRODUCTION.................. 1 METHODS....................... 2 Sample Collection........ 2 Sample Identification.... 2 Sample Analysis.......... 3 RESULTS....................... 3 Globicephala macrorhynchus 3 Mirounga angustirostris... 4 DISCUSSION.................... 6 ACKNOWLEDGEMENTS.............. 11 REFERENCES.............. 12 i LIST OF TABLES TABLE PAGE 1 Collection data for Globicephala macrorhynchus examined from the Southern California Bight........ 19 2 Collection data for Mirounga angustirostris examined from the Southern California Bight........ 20 3 Stomach contents of Globicephala macrorhynchus examined from the Southern California Bight....... -
© Iccat, 2007
A5 By-catch Species APPENDIX 5: BY-CATCH SPECIES A.5 By-catch species By-catch is the unintentional/incidental capture of non-target species during fishing operations. Different types of fisheries have different types and levels of by-catch, depending on the gear used, the time, area and depth fished, etc. Article IV of the Convention states: "the Commission shall be responsible for the study of the population of tuna and tuna-like fishes (the Scombriformes with the exception of Trichiuridae and Gempylidae and the genus Scomber) and such other species of fishes exploited in tuna fishing in the Convention area as are not under investigation by another international fishery organization". The following is a list of by-catch species recorded as being ever caught by any major tuna fishery in the Atlantic/Mediterranean. Note that the lists are qualitative and are not indicative of quantity or mortality. Thus, the presence of a species in the lists does not imply that it is caught in significant quantities, or that individuals that are caught necessarily die. Skates and rays Scientific names Common name Code LL GILL PS BB HARP TRAP OTHER Dasyatis centroura Roughtail stingray RDC X Dasyatis violacea Pelagic stingray PLS X X X X Manta birostris Manta ray RMB X X X Mobula hypostoma RMH X Mobula lucasana X Mobula mobular Devil ray RMM X X X X X Myliobatis aquila Common eagle ray MYL X X Pteuromylaeus bovinus Bull ray MPO X X Raja fullonica Shagreen ray RJF X Raja straeleni Spotted skate RFL X Rhinoptera spp Cownose ray X Torpedo nobiliana Torpedo -
Sharkcam Fishes
SharkCam Fishes A Guide to Nekton at Frying Pan Tower By Erin J. Burge, Christopher E. O’Brien, and jon-newbie 1 Table of Contents Identification Images Species Profiles Additional Info Index Trevor Mendelow, designer of SharkCam, on August 31, 2014, the day of the original SharkCam installation. SharkCam Fishes. A Guide to Nekton at Frying Pan Tower. 5th edition by Erin J. Burge, Christopher E. O’Brien, and jon-newbie is licensed under the Creative Commons Attribution-Noncommercial 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc/4.0/. For questions related to this guide or its usage contact Erin Burge. The suggested citation for this guide is: Burge EJ, CE O’Brien and jon-newbie. 2020. SharkCam Fishes. A Guide to Nekton at Frying Pan Tower. 5th edition. Los Angeles: Explore.org Ocean Frontiers. 201 pp. Available online http://explore.org/live-cams/player/shark-cam. Guide version 5.0. 24 February 2020. 2 Table of Contents Identification Images Species Profiles Additional Info Index TABLE OF CONTENTS SILVERY FISHES (23) ........................... 47 African Pompano ......................................... 48 FOREWORD AND INTRODUCTION .............. 6 Crevalle Jack ................................................. 49 IDENTIFICATION IMAGES ...................... 10 Permit .......................................................... 50 Sharks and Rays ........................................ 10 Almaco Jack ................................................. 51 Illustrations of SharkCam -
Florida's Fintastic Sharks and Rays Lesson and Activity Packet
Florida's Fintastic Sharks and Rays An at-home lesson for grades 3-5 Produced by: This educational workbook was produced through the support of the Indian River Lagoon National Estuary Program. 1 What are sharks and rays? Believe it or not, they’re a type of fish! When you think “fish,” you probably picture a trout or tuna, but fishes come in all shapes and sizes. All fishes share the following key characteristics that classify them into this group: Fishes have the simplest of vertebrate hearts with only two chambers- one atrium and one ventricle. The spine in a fish runs down the middle of its back just like ours, making fish vertebrates. All fishes have skeletons, but not all fish skeletons are made out of bones. Some fishes have skeletons made out of cartilage, just like your nose and ears. Fishes are cold-blooded. Cold-blooded animals use their environment to warm up or cool down. Fins help fish swim. Fins come in pairs, like pectoral and pelvic fins or are singular, like caudal or anal fins. Later in this packet, we will look at the different types of fins that fishes have and some of the unique ways they are used. 2 Placoid Ctenoid Ganoid Cycloid Hard protective scales cover the skin of many fish species. Scales can act as “fingerprints” to help identify some fish species. There are several different scale types found in bony fishes, including cycloid (round), ganoid (rectangular or diamond), and ctenoid (scalloped). Cartilaginous fishes have dermal denticles (Placoid) that resemble tiny teeth on their skin. -
Tiger Shark (Galeocerdo Cuvier) on the East Coast of Australia
The biology and ecology of the tiger shark (Galeocerdo cuvier) on the east coast of Australia. Bonnie Jane Holmes BSc (Hons) A thesis submitted for the degree of Doctor of Philosophy at The University of Queensland in 2015 School of Biological Sciences ABSTRACT The tiger shark (Galeocerdo cuvier) (Péron and Lesueur 1822) is the largest of the carcharhinids, with a circumglobal distribution in both tropical and warm temperate coastal and pelagic waters. In the western Pacific, G. cuvier movements are wide-ranging, encompassing the east coast of Australia and south Pacific Islands. Throughout the region, G. cuvier is exposed to a range of commercial, recreational, artisanal and illegal foreign fishery impacts, as both a target and by-product species. Listed as ‘near threatened’ on the International Union for Conservation of Nature (IUCN) Red List, suitable long term species-specific catch, catch rate and biological data are seldom available for large shark species like G. cuvier, particularly where historical commercial fishery logbook reporting has been poor. Shark control programs targeting large sharks along Australia’s east coast have been in operation for over 60 years, using relatively standardised fishing gear in nearshore waters all year round, with historical catch and effort data recorded by shark contractors. Historical catch, catch rate and biological data collected through the Queensland Shark Control Program (QSCP) since 1993 were investigated, which revealed significant declines (p < 0.05) in catch rates of G. cuvier at some tropical and all sub-tropical locations along the Queensland coast. Significant temporal declines in the average size of G. cuvier also occurred at four of the nine locations analysed (p < 0.05), which could be indicative of fishing reducing abundance in these areas. -
Extinction Risk and Conservation of the World's Sharks and Rays
Extinction risk and conservation of the world's sharks and rays Nicholas K. Dulvy1*, Sarah L. Fowler2, John A. Musick3, Rachel D. Cavanagh4, Peter M. Kyne5, Lucy R. Harrison1, John K. Carlson6, Lindsay N. K. Davidson1, Sonja V. Fordham7, Malcolm P. Francis8, Caroline M. Pollock9, Colin A. Simpfendorfer10, George H. Burgess11, Kent E. Carpenter12, Leonard J. V. Compagno13, David A. Ebert14, Claudine Gibson2, Michelle R. Heupel15, Suzanne R. Livingstone16, Jonnell C. Sanciangco12, John D. Stevens17, Sarah Valenti2, & William T. White17 1IUCN Species Survival Commission Shark Specialist Group and Earth to Ocean Research Group, Department of Biological Sciences, Simon Fraser University, Burnaby, British Colombia V5A 1S6, Canada; 2IUCN Species Survival Commission Shark Specialist Group, NatureBureau International, 36 Kingfisher Court, Hambridge Road, Newbury RG14 5SJ, UK; 3Virginia Institute of Marine Science, Greate Road, Gloucester Point, VA 23062, USA; 4British Antarctic Survey, Natural Environment Research Council, Madingley Road, Cambridge CB3 0ET, UK; 5Research Institute for the Environment and Livelihoods, Charles Darwin University, Darwin, Northern Territory 0909, Australia; 6NOAA/National Marine Fisheries Service, Southeast Fisheries Science Center, 3500 Delwood Beach Road, Panama City, FL 32408, USA; 7Shark Advocates International, The Ocean Foundation, 1990 M Street, NW, Suite 250, Washington, DC 20036, USA; 8National Institute of Water and Atmospheric Research, Private Bag 14901, Wellington, New Zealand; 9Species Programme, IUCN,