251 Part 640—Spiny Lobster Fishery of the Gulf Of

Total Page:16

File Type:pdf, Size:1020Kb

251 Part 640—Spiny Lobster Fishery of the Gulf Of Fishery Conservation and Management Pt. 640 of an application for an ILAP or an ap- Sevengill, Heptranchias perlo peal of NMFS's denial of an initial lim- Sixgill, Hexanchus griseus ited access permit for swordfish. Smalltail, Carcharhinus porosus (12) Falsify information submitted Whale, Rhincodon typus White, Carcharodon carcharias under § 635.46(b) in support of entry of imported swordfish. TABLE 2 OF APPENDIX A TO PART 635± (13) Exceed the incidental catch re- DEEPWATER/OTHER SHARK SPECIES tention limits specified at § 635.24(b). Blotched catshark, Scyliorhinus meadi [64 FR 29135, May 28, 1999, as amended at 64 Broadgill catshark, Apristurus riveri FR 37705, July 13, 1999; 65 FR 42887, July 12, Chain dogfish, Scyliorhinus retifer Deepwater catshark, Apristurus profundorum 2000; 65 FR 47238, Aug. 1, 2000] Dwarf catshark, Scyliorhinus torrei Iceland catshark, Apristurus laurussoni APPENDIX A TO PART 635ÐSPECIES Marbled catshark, Galeus arae TABLES Smallfin catshark, Apristurus parvipinnis TABLE 1 OF APPENDIX A TO PART 635±OCEANIC Bigtooth cookiecutter, Isistius plutodus Blainville's dogfish, Squalus blainvillei SHARKS Bramble shark, Echinorhinus brucus A. Large coastal sharks: Broadband dogfish, Etmopterus gracilispinnis Caribbean lanternshark, Etmopterus hillianus 1. Ridgeback sharks: Cookiecutter shark, Isistius brasiliensis Sandbar, Carcharhinus plumbeus Cuban dogfish, Squalus cubensis Silky, Carcharhinus falciformis Flatnose gulper shark, Deania profundorum Tiger, Galeocerdo cuvieri Fringefin lanternshark, Etmopterus schultzi Great lanternshark, Etmopterus princeps 2. Non-ridgeback sharks: Green lanternshark, Etmopterus virens Greenland shark, Somniosus microcephalus Blacktip, Carcharhinus limbatus Gulper shark, Centrophorus granulosus Bull, Carcharhinus leucas Japanese gulper shark, Centrophorus acuus Great hammerhead, Sphyrna mokarran Kitefin shark, Dalatias licha Lemon, Negaprion brevirostris Lined lanternshark, Etmopterus bullisi Nurse, Ginglymostoma cirratum Little gulper shark, Centrophorus uyato Scalloped hammerhead, Sphyrna lewini Portuguese shark, Cetroscymnus coelolepis Smooth hammerhead, Sphyrna zygaena Pygmy shark, Squaliolus laticaudus Spinner, Carcharhinus brevipinna Roughskin spiny dogfish, Squalus asper Smallmouth velvet dogfish, Scymnodon B. Small coastal sharks: obscurus Atlantic sharpnose, Rhizoprionodon Smooth lanternshark, Etmopterus pusillus terraenovae American sawshark, Pristiophorus schroederi Blacknose, Carcharhinus acronotus Florida smoothhound, Mustelus norrisi Bonnethead, Sphyrna tiburo Smooth dogfish, Mustelus canis Finetooth, Carcharhinus isodon C. Pelagic sharks: PART 640ÐSPINY LOBSTER FISHERY OF THE GULF OF MEXICO AND Blue, Prionace glauca Oceanic whitetip, Carcharhinus longimanus SOUTH ATLANTIC Porbeagle, Lamna nasus Shortfin mako, Isurus oxyrinchus Subpart AÐGeneral Provisions Thresher, Alopias vulpinus. Sec. D. Prohibited sharks: 640.1 Purpose and scope. 640.2 Definitions. Atlantic angel, Squatina dumerili 640.3 Relation to other laws. Basking, Cetorhinus maximus 640.4 Permits and fees. Bigeye sand tiger, Odontaspis noronhai 640.5 Recordkeeping and reporting. [Re- Bigeye sixgill, Hexanchus vitulus served] Bigeye thresher, Alopias superciliosus 640.6 Vessel and gear identification. Bignose, Carcharhinus altimus 640.7 Prohibitions. Caribbean reef, Carcharhinus perezi 640.8 Facilitation of enforcement. Caribbean sharpnose, Rhizoprionodon porosus 640.9 Penalties. Dusky, Carcharhinus obscurus Galapagos, Carcharhinus galapagensis Subpart BÐManagement Measures Longfin mako, Isurus paucus Narrowtooth, Carcharhinus brachyurus 640.20 Seasons. Night, Carcharhinus signatus 640.21 Harvest limitations. Sand tiger, Odontaspis taurus 640.22 Gear and diving restrictions. 251 VerDate 11<MAY>2000 09:39 Dec 15, 2000 Jkt 190204 PO 00000 Frm 00251 Fmt 8010 Sfmt 8010 Y:\SGML\190204T.XXX pfrm01 PsN: 190204T § 640.1 50 CFR Ch. VI (10±1±00 Edition) 640.23 Bag/possession limits. Commercial fishing means any fishing 640.24 Authorized activities. or fishing activities which result in the 640.25 Adjustment of management meas- harvest of any marine or freshwater or- ures. ganisms, one or more of which (or parts FIGURESÐPART 640 thereof) is sold, traded, or bartered. FIGURE 1ÐCARAPACE LENGTH Hoop net means a frame, circular or otherwise, supporting a shallow bag of AUTHORITY: 16 U.S.C. 1801 et seq. webbing and suspended by a line and bridles. The net is baited and lowered Subpart AÐGeneral Provisions to the ocean bottom, to be raised rap- idly at a later time to prevent the es- § 640.1 Purpose and scope. cape of lobster. (a) The purpose of this part is to im- Live well means a shaded container plement the Fishery Management Plan used for holding live lobsters aboard a for the Spiny Lobster Fishery of the vessel in which aerated seawater is Gulf of Mexico and South Atlantic pre- continuously circulated from the sea. pared by the South Atlantic and Gulf Circulation of seawater at a rate that of Mexico Fishery Management Coun- replaces the water at least every 8 min- cils under the Magnuson Act. utes meets the requirement for aer- (b) This part governs conservation ation. and management of spiny lobster and slipper (Spanish) lobster in the EEZ in Off Florida means the area from the the Atlantic Ocean and Gulf of Mexico Florida coast to the outer limit of the off the Atlantic and Gulf of Mexico EEZ between the Georgia/Florida ° ′ ″ states from the Virginia/North Caro- boundary (30 42 45.6 N. latitude) and lina border south and through the Gulf the Alabama/Florida boundary of Mexico. (87°31′06″W. longitude). (c) An owner or operator of a vessel Off the Gulf states, other than Florida that has legally harvested spiny lob- means the area from the coast to the sters in the waters of a foreign nation outer limit of the EEZ between the and possesses spiny lobsters, or sepa- Texas/Mexico border to the Alabama/ rated tails, in the EEZ incidental to Florida boundary (87°31′06″ W. long.). such foreign harvesting is exempt from Off Monroe County, Florida means the the requirements of this part 640, pro- area from the Florida coast to the vided proof of lawful harvest in the wa- outer limit of the EEZ between a line ters of a foreign nation accompanies extending directly east from the Dade/ such lobsters or tails. Monroe County, Florida boundary (25°20.4′N. latitude) and a line extend- [57 FR 56518, Nov. 30, 1992] ing directly west from the Monroe/Col- § 640.2 Definitions. lier County, Florida boundary (25°48.0′N. latitude). In addition to the definitions in the Magnuson Act and in § 620.2 of this Off the southern Atlantic states, other chapter, the terms used in this part than Florida means the area from the have the following meanings: coast to the outer limit of the EEZ be- Bully net means a circular frame at- tween the Virginia/North Carolina ° ′ ″ tached at right angles to the end of a boundary (36 34 55 N. lat.) to the Geor- ° ′ ″ pole and supporting a conical bag of gia/Florida boundary (30 42 45.6 N. webbing. The webbing is usually held lat.). up by means of a cord which is released Recreational fishing means fishing or when the net is dropped over a lobster. fishing activities which result in the Carapace length means the measure- harvest of fish, none of which (or parts ment of the carapace (head, body, or thereof) is sold, traded, or bartered. front section) of a spiny lobster from Regional Director means the Director, the anteriormost edge (front) of the Southeast Region, NMFS, 9721 Execu- groove between the horns directly tive Center Drive N., St. Petersburg, above the eyes, along the middorsal FL 33702, telephone 813±570±5301; or a line (middle of the back), to the rear designee. edge of the top part of the carapace, ex- Slipper (Spanish) lobster means the cluding any translucent membrane. species Scyllarides nodifer. 252 VerDate 11<MAY>2000 09:39 Dec 15, 2000 Jkt 190204 PO 00000 Frm 00252 Fmt 8010 Sfmt 8010 Y:\SGML\190204T.XXX pfrm01 PsN: 190204T.
Recommended publications
  • Sharks for the Aquarium and Considerations for Their Selection1 Alexis L
    FA179 Sharks for the Aquarium and Considerations for Their Selection1 Alexis L. Morris, Elisa J. Livengood, and Frank A. Chapman2 Introduction The Lore of the Shark Sharks are magnificent animals and an exciting group Though it has been some 35 years since the shark in Steven of fishes. As a group, sharks, rays, and skates belong to Spielberg’s Jaws bit into its first unsuspecting ocean swim- the biological taxonomic class called Chondrichthyes, or mer and despite the fact that the risk of shark-bite is very cartilaginous fishes (elasmobranchs). The entire supporting small, fear of sharks still makes some people afraid to swim structure of these fish is composed primarily of cartilage in the ocean. (The chance of being struck by lightning is rather than bone. There are some 400 described species of greater than the chance of shark attack.) The most en- sharks, which come in all different sizes from the 40-foot- grained shark image that comes to a person’s mind is a giant long whale shark (Rhincodon typus) to the 2-foot-long conical snout lined with multiple rows of teeth efficient at marble catshark (Atelomycterus macleayi). tearing, chomping, or crushing prey, and those lifeless and staring eyes. The very adaptations that make sharks such Although sharks have been kept in public aquariums successful predators also make some people unnecessarily since the 1860s, advances in marine aquarium systems frightened of them. This is unfortunate, since sharks are technology and increased understanding of shark biology interesting creatures and much more than ill-perceived and husbandry now allow hobbyists to maintain and enjoy mindless eating machines.
    [Show full text]
  • Diurnal Patterns in Gulf of Mexico Epipelagic Predator Interactions with Pelagic Longline Gear: Implications for Target Species Catch Rates and Bycatch Mitigation
    Bull Mar Sci. 93(2):573–589. 2017 research paper https://doi.org/10.5343/bms.2016.1008 Diurnal patterns in Gulf of Mexico epipelagic predator interactions with pelagic longline gear: implications for target species catch rates and bycatch mitigation 1 National Marine Fisheries Eric S Orbesen 1 * Service, Southeast Fisheries 1 Science Center, 75 Virginia Beach Derke Snodgrass 2 Drive, Miami, Florida 33149. Geoffrey S Shideler 1 2 University of Miami, Rosenstiel Craig A Brown School of Marine & Atmospheric John F Walter 1 Science, 4600 Rickenbacker Causeway, Miami, Florida 33149. * Corresponding author email: <[email protected]>. ABSTRACT.—Bycatch in pelagic longline fisheries is of substantial international concern, and the mitigation of bycatch in the Gulf of Mexico has been considered as an option to help restore lost biomass following the 2010 Deepwater Horizon oil spill. The most effective bycatch mitigation measures operate upon a differential response between target and bycatch species, ideally maintaining target catch while minimizing bycatch. We investigated whether bycatch vs target catch rates varied between day and night sets for the United States pelagic longline fishery in the Gulf of Mexico by comparing the influence of diel time period and moon illumination on catch rates of 18 commonly caught species/species groups. A generalized linear model approach was used to account for operational and environmental covariates, including: year, season, water temperature, hook type, bait, and maximum hook depth. Time of day or moon
    [Show full text]
  • 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).
    [Show full text]
  • 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.
    [Show full text]
  • Morphological and Mitochondrial DNA Divergence Validates Blackmouth, Galeus Melastomus, and Atlantic Sawtail Catsharks, Galeus Atlanticus,Asseparatespecies
    Journal of Fish Biology (2007) 70 (Supplement C), 346–358 doi:10.1111/j.1095-8649.2007.01455.x, available online at http://www.blackwell-synergy.com Morphological and mitochondrial DNA divergence validates blackmouth, Galeus melastomus, and Atlantic sawtail catsharks, Galeus atlanticus,asseparatespecies R. CASTILHO*†, M. FREITAS*, G. SILVA*, J. FERNANDEZ-CARVALHO‡ AND R. COELHO‡ *Biodiversity and Conservation Group, CCMAR, University of Algarve, Campus de Gambelas, 8005-139 Faro, Portugal and ‡Coastal Fisheries Research Group, CCMAR, University of Algarve, Campus de Gambelas, 8005-139 Faro, Portugal (Received 30 August 2006, Accepted 17 January 2007) A total of 60 morphometric traits and nucleotide sequences of the entire mtDNA NADH dehydrogenase subunit 2 (ND2) gene [1047 base pair (bp)] in 23 individuals of blackmouth, Galeus melastomus, and 13 individuals of sawtail catsharks, Galeus atlanticus, caught in Southern Portugal, were examined to test the validity of these two taxa. These sharks closely resemble each other, have overlapping geographical ranges and are difficult to identify by morphological characters. Non-metric multidimensional scaling of morphometric variables indicates a clear separation between the two species, with 10 characters each contributing 2Á12–2Á45% of the total variability between species. Maximum likelihood, parsimony and neighbour-joining trees revealed two major mtDNA haplotype clades, corresponding to the two species, with an average corrected sequence divergence between them of 3Á39 Æ 0Á56%. Within species divergences between haplotypes averaged 0Á27 Æ 0Á18% in G. melastomus and 0Á12 Æ 0Á08% in G. atlanticus. A total of 35 diagnostic nucleotide site differences and four restriction fragment length polymorphism recognition sites in the ND2 gene can be used to distinguish the two species.
    [Show full text]
  • Reproductive Biology of the Bonnethead (Sphyrna Tiburo) from the Southeastern U.S
    University of North Florida UNF Digital Commons UNF Graduate Theses and Dissertations Student Scholarship 2014 Reproductive Biology of the Bonnethead (Sphyrna tiburo) from the Southeastern U.S. Atlantic Coast Melissa I. Gonzalez De Acevedo University of North Florida, [email protected] Follow this and additional works at: https://digitalcommons.unf.edu/etd Part of the Biology Commons, and the Ecology and Evolutionary Biology Commons Suggested Citation Gonzalez De Acevedo, Melissa I., "Reproductive Biology of the Bonnethead (Sphyrna tiburo) from the Southeastern U.S. Atlantic Coast" (2014). UNF Graduate Theses and Dissertations. 534. https://digitalcommons.unf.edu/etd/534 This Master's Thesis is brought to you for free and open access by the Student Scholarship at UNF Digital Commons. It has been accepted for inclusion in UNF Graduate Theses and Dissertations by an authorized administrator of UNF Digital Commons. For more information, please contact Digital Projects. © 2014 All Rights Reserved REPRODUCTIVE BIOLOGY OF THE BONNETHEAD (SPHYRNA TIBURO) FROM THE SOUTHEASTERN U.S. ATLANTIC COAST by Melissa Gonzalez De Acevedo A thesis submitted to the Department of Biology in partial fulfillment of the requirements for the degree of Masters of Science in Biology UNIVERSITY OF NORTH FLORIDA COLLEGE OF ARTS AND SCIENCES December 2014 Unpublished work, © Melissa Gonzalez De Acevedo CERTIFICATE OF APPROVAL The thesis “Reproductive biology of the bonnethead (Sphyrna tiburo) from the southeastern U.S. Atlantic coast” submitted by Melissa Gonzalez De Acevedo Approved by the thesis committee: Date Dr. Jim Gelsleichter Committee Chair Dr. Carolyn Belcher Dr. Eric Johnson Accepted for the Department of Biology: Dr. Cliff Ross Assistant Chair Accepted for the College of Arts and Sciences: Dr.
    [Show full text]
  • © 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
    [Show full text]
  • 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.
    [Show full text]
  • Gill Morphometrics of the Thresher Sharks (Genus Alopias): Correlation of Gill Dimensions with Aerobic Demand and Environmental Oxygen
    JOURNAL OF MORPHOLOGY :1–12 (2015) Gill Morphometrics of the Thresher Sharks (Genus Alopias): Correlation of Gill Dimensions with Aerobic Demand and Environmental Oxygen Thomas P. Wootton,1 Chugey A. Sepulveda,2 and Nicholas C. Wegner1,3* 1Center for Marine Biotechnology and Biomedicine, Marine Biology Research Division, Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA 92093 2Pfleger Institute of Environmental Research, Oceanside, CA 92054 3Fisheries Resource Division, Southwest Fisheries Science Center, NOAA Fisheries, La Jolla, CA 92037 ABSTRACT Gill morphometrics of the three thresher related species that inhabit similar environments shark species (genus Alopias) were determined to or have comparable metabolic requirements. As examine how metabolism and habitat correlate with such, in reviews of gill morphology (e.g., Gray, respiratory specialization for increased gas exchange. 1954; Hughes, 1984a; Wegner, 2011), fishes are Thresher sharks have large gill surface areas, short often categorized into morphological ecotypes water–blood barrier distances, and thin lamellae. Their large gill areas are derived from long total filament based on the respiratory dimensions of the gills, lengths and large lamellae, a morphometric configura- namely gill surface area and the thickness of the tion documented for other active elasmobranchs (i.e., gill epithelium (the water–blood barrier distance), lamnid sharks, Lamnidae) that augments respiratory which both reflect a species’ capacity for oxygen surface area while
    [Show full text]
  • On the Occurrence of the Arrowhead Dogfish, Deania Profundorum
    View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Sapientia On the occurrence of the arrowhead dogfish, Deania profundorum (Chondrichthyes: Squalidae) off southern Portugal, with a missing gill slit by Rui COELHO & Karim ERZINI (1) R É S U M É. - Signalement d’un Deania pro f u n d o ru m ( C h o n d r i c h- thyes : Squalidae) capturé dans le sud du Portugal, avec absence d’une fente branchiale. Dans ce travail, nous rapportons la capture d’un chien de mer pointe de flèche, Deania pro f u n d o ru m (Smith & Radcliffe, 1912), dans les eaux portugaises méridionales. Le spécimen, une grande femelle mature de 87,5 cm de longueur totale, n’avait que quatre fentes branchiales du côté droit, sans présenter de cicatrice à l’en- droit où la cinquième fente aurait dû se situer. Des mesures compa- ratives entre les tailles des fentes branchiales gauches et droites amènent à conclure que la fente manquante est probablement la première. Key words. - Chondrichthyes - Squalidae - Deania pro f u n d o ru m - ANE - Southern Portugal - Gill slit deformation - Record. The arrowhead dogfish, Deania pro f u n d o ru m (Smith & Rad- cliffe, 1912), is a squalid shark characterized by a greatly elongated snout, that is spatulate dorsal-ventrally and thin-depressed laterally (Compagno, 1984). This is a widely distributed species found on Figure 1. - Map of the southwest coast of Portugal with location of the cap- both sides of the Atlantic, from the Western Sahara to South A f r i c a ture ( ) of the Deania pro f u n d o ru m specimen.
    [Show full text]
  • Sharks and Rays
    SHARKS AND RAYS Photo by: © Jim Abernethy Transboundary Species - Content ... 31 32 33 34 35 ... Overview As stated in the previous section, the establishment of the Yarari fishing for sharks in the Netherlands and places new pressure on Marine Mammal and Shark Sanctuary was an important step fishermen to implement new techniques and updated fishing gear in protecting the shark and ray species of the Dutch Caribbean. to avoid accidentally catching sharks and rays as bycatch. Overall, there is a significant lack of information concerning these vital species within Dutch Caribbean waters. Fortunately, this There are several different international treaties and legisla- trend is changing and in the last few years there has been a push tion which offer protection to these species. This includes the to increase research, filling in the historic knowledge gap. Sharks Convention on International Trade in Endangered Species (CITES), and rays are difficult species to protect as they tend to have long the Specially Protected Areas and Wildlife (SPAW) protocol and reproduction cycles, varying between 3 and 30 years, small litters, the Convention on Migratory Species (CMS). Scientists are just which means they do not recover quickly when overfished and can beginning to uncover the complexities of managing conservation travel over great distances which makes them difficult to track. efforts for these species, as they often have long migration routes which put them in danger if international waters are not managed Early in 2019, the Ministry of Agriculture, Nature and Food Quality and protected equally. (LNV) published a strategy document to manage and protect sharks and rays within waters the Netherlands influences (this There are more than thirty different species of sharks and includes the North Sea, Dutch Caribbean and other international rays which are known to inhabit the waters around the Dutch waters).
    [Show full text]
  • Wk Shark Advice Adhshark
    ICES Special Request Advice Ecoregions in the Northeast Atlantic and adjacent seas Published 25 September 2020 NEAFC and OSPAR joint request on the status and distribution of deep-water elasmobranchs Advice summary In response to a joint request from NEAFC and OSPAR, ICES reviewed existing information on deep-water sharks, skates and rays from surveys and the literature. Distribution maps were generated for 21 species, showing the location of catches from available survey data on deep-water sharks and elasmobranchs in the NEAFC and OSPAR areas of the Northeast Atlantic. Shapefiles of the species distribution areas are available as supporting documentation to this work. This advice sheet presents a summary of ICES advice on the stock status of species for which an assessment is available, as well as current knowledge on the stock status of species for which ICES does not provide advice. An overview of approaches which may be applied to mitigate bycatch and to improve stock status is also presented. ICES recognizes that, despite their limitations, prohibition, gear and depth limitations, and TAC are mechanisms currently available to managers to regulate outtake; therefore, ICES advises that these mechanisms should be maintained. Furthermore, ICES advises that additional measures, such as electromagnetic exclusion devices, acoustic or light-based deterrents, and spatio-temporal management could be explored. Request NEAFC and OSPAR requested ICES to produce: a. Maps and shapefiles of the distribution of the species, identifying, if possible, key areas used during particular periods/stages of the species’ lifecycle in terms of distribution and relative abundance of the species, and expert interpretation of the data products; b.
    [Show full text]