DOCSLIB.ORG

Productivity and Susceptibility Analysis

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text

Load more

AnAn ecologicalecological riskrisk assessmentassessment forfor thethe effecteffect ofof thethe KoreanKorean tunatuna longlinelongline fisheryfishery inin thethe WesternWestern andand CentralCentral PacificPacific OceanOcean You Jung Kwon1,2, Doo Hae An2, Chang Ik Zhang1, 2 2 Dae Yeon Moon and Jae Bong Lee 1Pukyong National University, Korea , 2National Fisheries Research & Development Institute, Korea EcologicalEcological riskrisk assessmentassessment ScopingScoping ScopingScoping Comprehensive(qualitative analysis) UncertainLevel 1 Level 1 Time & $$ Qualitative LH LH (semi-quantitative analysis) Level 2 Level 2 LH LH Focused More certain (quantitative analysis) Level 3 Level 3 Time & $$ Quantitative LH LH Risk Management Response Risk Management Risk Management Response Risk Management (Smith et al, 2007) LevelLevel 2:2: PSAPSA (Productivity(Productivity andand SusceptibilitySusceptibility Analysis)Analysis) dB B =rB( 1 − )qEB − dt K Productivity, r - recovery rate after potential depletion or damage by the fishing activity Susceptibility, q - extent of the impact due to fishing activity PurposePurpose Assessment on the adverse impacts of the Korean tuna longline fishery in the Western and Central Pacific Ocean - target species, non-target species and dependent or associated with the target species Precautionary approach for the stock or ecosystem management and conservation - identification of non-target species for consideration of future research or management - protect biodiversity in the marine environment DataData Survey area N 60o Period: 2005-2008 o 2005 40 Area: Western and Central Pacific Ocean 20o 2007-2008 2006 Source: 2007 0o 2005 - 20,157 catches in number WCPO 20o 2006 EPO - 48 species 40o Collected data by 7 scientific observers 60o from NFRDI in Korea S EW100o 120o 140o 160o 180o 160o 140o 120o 100o 80o SpeciesSpecies Group English name Scientific name Albacore Thunnus alalunga Tunas (5) Bigeye tuna Thunnus obesus Yellowfin tuna Thunnus albacares Skipjack tuna Katsuwonus pelamis Bluefin tuna Thunnus thynnus Swordfish Xiphias gladius Billfishes (6) Shortbill spearfish Tetrapturus angustirostris Blue marlin Makaira mazara Indo-Pacific sailfish Istiophorus platypterus Striped marlin Tetrapturus audax Black marlin Makaira indica Bigeye thresher shark Alopias superciliosus Sharks Blue shark Prionace glauca (13) Galapagos shark Carcharhinus galapagensis Longfin mako Isurus paucus Shortfin mako Isurus oxyrinchus Oceanic whitetip shark Carcharhinus longimanus Grey reef shark Carcharhinus amblyrhynchos Smooth hammerhead Sphyrna zygaena Crocodile shark Pseudocarcharias kamoharai Scalloped hammarhead shark Sphyrna lewini Japanese velvet dogfish Zameus ichiharai Salmon shark Lamna ditropis Silky shark Carcharhinus falciformis SpeciesSpecies Group English name Scientific name Turtles Green sea turtle Chelonia mydas (3) Loggerhead sea turtle Caretta caretta Olive ridley sea turtle Lepidochelys olivacea Sickle pomfret Taractichthys steindachneri Other species (21) Black pomfret Taractes rubescens Escolar Lepidocybium flavobrunneum Snake mackerel Gempylus serpens Wahoo Acanthocybium solandri Longnose lancetfish Alepisaurus ferox Pelagic stingray Dasyatis violacea Ocean sunfish Mola mola Great barracuda Sphyraena barracuda Opah Lampris guttatus Dolphinfish Coryphaena hippurus Sharptail mola Masturus lanceolatus Manta ray Mobula japanica Oilfish Ruvettus pretiosus Rainbow runner Elagatis bipinnulata Slender sunfish Ranzania laevis Suck fish Remora remora Flyingfish Prognichthys gibbifrons Crested oarfish Lophotus lacepede Razorback scabbardfish Assurger anzac Shortnose lancetfish Alepisaurus brevirostris SpeciesSpecies compositioncomposition catchcatch inin weightweight Others 27.9% Escolar 39.3% Bigeye Others thresher shark 9.6% 6.6% Sickle pomfret ShortfinMako shark mako 12.2% 22.9% Blue sharkNon- Opah 60.9% Turtles 20.7%Target target 0.3% Others species species 8.2% 43%Sharks 57%Tunas 28.8% 56.8% Billfishes 5.9% Striped marlin Skipjack Bluefin Indo-Pacific Black marlin 16.5% 1.3% 0.1% sailfish 0.8% Yellowfin 5.8% 10.6% Albacore 28.5% Swordfish Shortbill 44.5% Bigeye spearfish Blue marlin 59.4% 2.8% 29.6% Proportion of captured species (weight) by 7 scientific observations from 2005 to 2008 IndicatorsIndicators forfor speciesspecies componentscomponents (Target,(Target, By-catch,By-catch, ProtectedProtected species)species) Productivity attributes Susceptibility attributes • Maximum age • Overlap with fishing effort • Age at maturity • Global distribution • Size at maturity • Adult habitat overlap with • Annual fecundity juvenile • Maximum size • Selectivity • Reproductive strategy • Post-capture mortality • Trophic level Attribute SusceptibilitySusceptibility Indicator Overlap with fishing effort 0m 25m Sea surface 25m sp. A 309m 167m sp. B 309m Maximum hook depth sp. C Reference Species A: High risk (2), 100% Species B: Medium risk (1), 50% point Species C: Low risk (0), 0% bottom AttributesAttributes (CSIRO, 2005) Reference points Attributes Indicators Low (0) Medium (1) High (2) Maximum age (year) < 10 10 – 25 25 < Productivity Age at maturity (year) < 5 5 – 10 10 < Size at maturity (cm) < 40 40 - 200 200 < Maximum size (cm) < 100 100 - 300 300 < Broadcast Demersal Reproductive strategy Live bearer spawners spawners Trophic level < 2.75 2.75 – 3.25 3.25 < Overlap with fishing 309 < 167 < 25 - 309 Susceptibility effort (m) Global distribution Worldwide Hemisphere Locality Adult habitat overlap Low rate Medium rate High rate with juvenile Selectivity No selectivity for longline fishery Post-capture mortality Alive Barely alive Dead EcosystemEcosystem riskrisk assessmentassessment TypeⅠ TypeⅡ 2 High risk High risk Ⅱ Ⅱ Medium risk 1 Indicator Attribute Low risk Susceptibility Low risk Captured mean length 0 12 LengthIndicator at maturity Ⅰ ProductivityAttribute Ⅰ TypeTypeⅠⅠ 300 Tunas Sharks 200 100 Billfishes Other speciesOthers 200 Captured mean length (cm) 100 0 0 100 200 100 200 300 Length at maturity (cm) TypeTypeⅡⅡ 2.0 2 Tunas Billfishes 1.01 Susceptibility 0.00 1.01 2.02 0.00 1.01 2.02 Productivity TypeTypeⅡⅡ TypeTypeⅡⅡ Galapagos shark 2 Oceanic white-tip Shark Oceanic white-tip Shark sharks Scalloped hammarhead shark sharks tunas billfishes tunas Longfin mako 1 Bigeye thresher shark Susceptibility turtles billfishes turtles Blue shark Shortfin mako 0 12 Productivity ConclusionConclusion Not only target tuna species were influenced by the tuna longline fishery, but also non-target species were affected by the fishery WCPFC This study Blue shark- tunas: medium risk Galapagos shark Oceanic white-tip- billfishes: shark medium or high Longfinrisk mako Shortfin mako - sharks: high risk Scalloped hammarhead shark Thresher shark Oceanic white-tip shark - turtles: : medium or high risk - others: medium or high risk ConclusionConclusion For reducing non-target species I. Development and improvement of long-term data collection, monitoring and research programmes II. Enhancement and development of methodology - more robust assessment III.Identification of captured non-target species by other tuna fisheries such as purse seine or pole-and-line Provide wider scientific advices to the policy makers and stakeholders .
Recommended publications
  • LEVELS in INDIAN MACKEREL Rastrelliger Kanagurta (SCOMBRIDAE) from KARACHI FISH HARBOUR and ITS RISK ASSESSMENT Quratulan Ahmed1,*, Levent Bat2

    LEVELS in INDIAN MACKEREL Rastrelliger Kanagurta (SCOMBRIDAE) from KARACHI FISH HARBOUR and ITS RISK ASSESSMENT Quratulan Ahmed1,*, Levent Bat2

    9(3): 012-016 (2015) Journal of FisheriesSciences.com E-ISSN 1307-234X © 2015 www.fisheriessciences.com ORIGINAL ARTICLE Research Article MERCURY (Hg) LEVELS IN INDIAN MACKEREL Rastrelliger kanagurta (SCOMBRIDAE) FROM KARACHI FISH HARBOUR AND ITS RISK ASSESSMENT Quratulan Ahmed1,*, Levent Bat2 1The Marine Reference Collection and Resources Centre, University of Karachi, Karachi, 75270 Pakistan 2University of Sinop, Fisheries Faculty, Department of Hydrobiology, TR57000 Sinop, Turkey Received: 03.04.2015 / Accepted: 24.04.2015 / Published online: 28.04.2015 Abstract: The present study was conducted to determine Hg levels in edible tissues of the Indian mackerel Rastrelliger kanagurta collected at Karachi Harbour of Pakistan between March 2013 and February 2014. Hg levels ranged from 0.01 to 0.09 with mean ± SD 0.042 ± 0.023 mg/kg dry wt. The Hg level in R. kanagurta is relatively low when compared to those studied in other parts of the world and is able to meet the legal standards by EU Commission Regulation and other international food standards. The findings obtained were also compared with established allowable weekly intake values. It is concluded that the Hg levels in the Indian mackerel from Karachi coasts did not exceed the permission limits (0.5 mg/kg). The results show that the Indian mackerel appears to be useful bio-indicator due to their accumulation of Hg, however, continued sampling is required for further researches. Keywords: Mercury, Rastrelliger kanagurta, Bio-indicator, Karachi fish harbour, Pakistan *Correspondence to: Quratulan Ahmed, The Marine Reference Collection and Resources Centre, University of Karachi, Karachi, 75270 Pakistan E-mail: [email protected] Tel: +92 (345) 2983586 12 Journal of FisheriesSciences.com Ahmed Q and Bat L 9(3): 012-016 (2015) Journal abbreviation: J FisheriesSciences.com Introduction exposure route possibly allowing metal biomagnification up trophic levels in the Indian mackerel R.
  • May-August 2008

    May-August 2008

    ~ UH-NOAA~ Volume 13, Number 2 May–August 2008 What If You Don’t Speak “CPUE-ese”? J. John Kaneko and Paul K. Bartram Introduction Seafood consumers are largely unaware of the environmental conse- quences they implicitly endorse when buying fish from different sources. To more effectively support responsible fisheries, consumers need to be able to easily differentiate seafood harvested in sustainable ways using more “envi- ronmentally friendly” methods from seafood from less sustainable origins. This requires easy access by con- sumers to easy-to-understand infor- mation comparing the “environmen- tal baggage” of competing suppliers of similar seafood products. Existing scientific measures do define such distinctions—but they are often too complex or technical to be easily understood or used by the aver- age seafood consumer. New communi- cation tools for readily conveying such information to non-scientist seafood consumers are needed. Figure 1. Computed Hawai‘i longline tuna fisheries bycatch-to-catch (B/C) ratios were reduced after increased (to greater than 20 percent of the annual fishing trips) observer coverage documented a lower rate of sea- turtle interaction than had the lower previous observer coverage (of less than 5 percent of the annual fishing Successful Efforts at Reducing trips). Sea-turtle interactions were significantly reduced in the Hawai‘i longline swordfish fishery as a result Sea-Turtle “Bycatch” of revised hook-and-bait requirements required by federal regulations that took effect in mid-2004. The Hawai‘i longline fishery, work- The area of the circles is proportional to the number of sea-turtle takes per 418,000 lb of target fish (tuna ing with fisheries scientists and fisheries or swordfish) caught.
  • Nbr First Edition Update Table 4.1 Southeast Region

    Nbr First Edition Update Table 4.1 Southeast Region

    NBR FIRST EDITION UPDATE TABLE 4.1 SOUTHEAST REGION FISH BYCATCH BY FISHERY Bycatch estimates are in live pounds or number of individuals, except where indicated, and reflect the average from the years identified. Fishery bycatch ratio = bycatch / (bycatch + landings). Some bycatch ratios (marked **) could not be developed, e.g., where bycatch was by weight and numbers of individuals, and landings were in pounds. COMMON NAME SCIENTIFIC NAME YEAR BYCATCH UNIT CV FOOTNOTE(S) Atlantic and Gulf of Mexico HMS Pelagic Longline # Albacore Thunnus alalunga 2010 1,918.02 POUND Bigeye tuna Thunnus obesus 2010 26,080.69 POUND b Blackfin tuna Thunnus atlanticus 2010 4,512.86 POUND Blue marlin Makaira nigricans 2010 66,418.67 POUND b Blue shark Prionace glauca 2010 368,449.76 POUND c Bluefin tuna Thunnus thynnus 2010 329,849.02 POUND Coastal shark group 1 - South Atlantic 2010 32,216.15 POUND Coastal shark group 2 - South Atlantic 2010 66.14 POUND b Sailfish Istiophorus platypterus 2010 9,061.00 POUND b Skipjack tuna Katsuwonus pelamis 2010 859.80 POUND Swordfish Xiphias gladius 2010 303,408.98 POUND White marlin Kajikia albida 2010 32,546.84 POUND Yellowfin tuna Thunnus albacares 2010 24,918.85 POUND TOTAL FISHERY BYCATCH 1,200,306.78 POUND TOTAL FISHERY LANDINGS 3,916,146.00 POUND TOTAL CATCH (Bycatch + Landings) 5,116,452.78 POUND FISHERY BYCATCH RATIO (Bycatch/Total Catch) 0.23 Gulf of Mexico Coastal Migratory Pelagic Gillnet Atlantic bonito Sarda sarda 2006-2010 102.86 INDIVIDUAL Sea catfishes Ariidae 2006-2010 14,348.40 INDIVIDUAL TOTAL FISHERY
  • Diurnal Patterns in Gulf of Mexico Epipelagic Predator Interactions with Pelagic Longline Gear: Implications for Target Species Catch Rates and Bycatch Mitigation

    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
  • Early Stages of Fishes in the Western North Atlantic Ocean Volume

    Early Stages of Fishes in the Western North Atlantic Ocean Volume

    ISBN 0-9689167-4-x Early Stages of Fishes in the Western North Atlantic Ocean (Davis Strait, Southern Greenland and Flemish Cap to Cape Hatteras) Volume One Acipenseriformes through Syngnathiformes Michael P. Fahay ii Early Stages of Fishes in the Western North Atlantic Ocean iii Dedication This monograph is dedicated to those highly skilled larval fish illustrators whose talents and efforts have greatly facilitated the study of fish ontogeny. The works of many of those fine illustrators grace these pages. iv Early Stages of Fishes in the Western North Atlantic Ocean v Preface The contents of this monograph are a revision and update of an earlier atlas describing the eggs and larvae of western Atlantic marine fishes occurring between the Scotian Shelf and Cape Hatteras, North Carolina (Fahay, 1983). The three-fold increase in the total num- ber of species covered in the current compilation is the result of both a larger study area and a recent increase in published ontogenetic studies of fishes by many authors and students of the morphology of early stages of marine fishes. It is a tribute to the efforts of those authors that the ontogeny of greater than 70% of species known from the western North Atlantic Ocean is now well described. Michael Fahay 241 Sabino Road West Bath, Maine 04530 U.S.A. vi Acknowledgements I greatly appreciate the help provided by a number of very knowledgeable friends and colleagues dur- ing the preparation of this monograph. Jon Hare undertook a painstakingly critical review of the entire monograph, corrected omissions, inconsistencies, and errors of fact, and made suggestions which markedly improved its organization and presentation.
  • The Fisheries of Chile

    The Fisheries of Chile

    The Fisheries of Chile UNITED STATES DEPARTMENT OF THE INTERIOR FISH AND WILDLIFE SERVICE BUREAU OF COMMERCIAL FISHERIES Circular 234 UNITED STATES DEPARTMENT OF THE IXTERIOI Stewart L. Udall, Secretary John A. Carvel', Jr., Under Secretary Stanley A. Cain, Assistant Secretary for Fi~h and W ildlife and Park.' FISH AND WILDLIFE SERVICE, Clarence F. PauL~kP , COmIll1s.~lonP/' BUREAU OF COMMERCIAL FISHERIES, Donald L. :\IcK rnan, Director The Fisheries of Ch ile By SIDNEY SHAPIRO Circular 234 Washington, D.C. Novern.ber 1965 CONTENTS Page 1 2 3 3 4 4 5 5 7 7 7 7 7 8 8 8 8 8 9 9 9 9 10 10 13 14 Iii The Fisheries of Chile By SIDNEY SHAPIRO, Forelgn Fisheries SpeClallst Bureau of Commercial F ishenes, Washmgton, D.C. ABSTRACT Trends and developments in the Chilean fishenes are discussed, wIth speCl 1 emphasis given to the expanding fish reduction mdustry. WIthm a few years Chile has become one of the world's largest producers and exporters of fish meal and od. Information is also presented on other exportable products, mamly shnmp and plated lobster (langostino), and on segments of the mdustry that produce for domestic consumption. INTRODUCTION the case in many Latin American countnes, fish supplies are Irregular; marketmg and Attention is being focused on the Chilean distribution facilities are inadequdte, espe­ fisheries because of the recent rapid increase cially in rural areas; and the low purchas.ng in production of fish meal. In Latin America, power of many people limits purchases. Con­ the Chilean fisheries are second only to those sumption of fishery products IS highest lr1 of Peru, the world's leading fishing nation in the more densely populated central reglOn.
  • An Introduction to the Classification of Elasmobranchs

    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.
  • © Iccat, 2007

    © 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

    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
  • Updated Checklist of Marine Fishes (Chordata: Craniata) from Portugal and the Proposed Extension of the Portuguese Continental Shelf

    Updated Checklist of Marine Fishes (Chordata: Craniata) from Portugal and the Proposed Extension of the Portuguese Continental Shelf

    European Journal of Taxonomy 73: 1-73 ISSN 2118-9773 http://dx.doi.org/10.5852/ejt.2014.73 www.europeanjournaloftaxonomy.eu 2014 · Carneiro M. et al. This work is licensed under a Creative Commons Attribution 3.0 License. Monograph urn:lsid:zoobank.org:pub:9A5F217D-8E7B-448A-9CAB-2CCC9CC6F857 Updated checklist of marine fishes (Chordata: Craniata) from Portugal and the proposed extension of the Portuguese continental shelf Miguel CARNEIRO1,5, Rogélia MARTINS2,6, Monica LANDI*,3,7 & Filipe O. COSTA4,8 1,2 DIV-RP (Modelling and Management Fishery Resources Division), Instituto Português do Mar e da Atmosfera, Av. Brasilia 1449-006 Lisboa, Portugal. E-mail: [email protected], [email protected] 3,4 CBMA (Centre of Molecular and Environmental Biology), Department of Biology, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal. E-mail: [email protected], [email protected] * corresponding author: [email protected] 5 urn:lsid:zoobank.org:author:90A98A50-327E-4648-9DCE-75709C7A2472 6 urn:lsid:zoobank.org:author:1EB6DE00-9E91-407C-B7C4-34F31F29FD88 7 urn:lsid:zoobank.org:author:6D3AC760-77F2-4CFA-B5C7-665CB07F4CEB 8 urn:lsid:zoobank.org:author:48E53CF3-71C8-403C-BECD-10B20B3C15B4 Abstract. The study of the Portuguese marine ichthyofauna has a long historical tradition, rooted back in the 18th Century. Here we present an annotated checklist of the marine fishes from Portuguese waters, including the area encompassed by the proposed extension of the Portuguese continental shelf and the Economic Exclusive Zone (EEZ). The list is based on historical literature records and taxon occurrence data obtained from natural history collections, together with new revisions and occurrences.
  • The Influence of Depth on Mercury Levels in Pelagic Fishes and Their Prey

    The Influence of Depth on Mercury Levels in Pelagic Fishes and Their Prey

    The influence of depth on mercury levels in pelagic fishes and their prey C. Anela Choya,1, Brian N. Poppb, J. John Kanekoc, and Jeffrey C. Drazena aDepartment of Oceanography, University of Hawaii, 1000 Pope Road, Honolulu, HI 96822; bDepartment of Geology and Geophysics, University of Hawaii, 1680 East-West Road, Honolulu, HI 96822; and cPacMar Inc., 3615 Harding Avenue, Suite 409, Honolulu, HI 96816 Edited by David M. Karl, University of Hawaii, Honolulu, HI, and approved June 23, 2009 (received for review January 21, 2009) Mercury distribution in the oceans is controlled by complex bio- temperature, algal concentrations) (11), and perhaps most com- geochemical cycles, resulting in retention of trace amounts of this monly, size (12). Despite extensive measurements of mercury in metal in plants and animals. Inter- and intra-specific variations in both the environment and biota, it is still not known why, mercury levels of predatory pelagic fish have been previously irrespective of size, some fish species have elevated mercury linked to size, age, trophic position, physical and chemical envi- concentrations and others do not. ronmental parameters, and location of capture; however, consid- Biogeochemical studies detailing the movement of mercury erable variation remains unexplained. In this paper, we focus on between air, land, and ocean reservoirs have offered insight into differences in ecology, depth of occurrence, and total mercury where mercury may be distributed in the marine environment levels in 9 species of commercially important
  • Anatomical Considerations of Pectoral Swimming in the Opah, Lampris Guttatus Author(S): Richard H

    Anatomical Considerations of Pectoral Swimming in the Opah, Lampris Guttatus Author(S): Richard H

    Anatomical Considerations of Pectoral Swimming in the Opah, Lampris guttatus Author(s): Richard H. Rosenblatt and G. David Johnson Source: Copeia, Vol. 1976, No. 2 (May 17, 1976), pp. 367-370 Published by: American Society of Ichthyologists and Herpetologists Stable URL: http://www.jstor.org/stable/1443963 Accessed: 02/06/2010 14:24 Your use of the JSTOR archive indicates your acceptance of JSTOR's Terms and Conditions of Use, available at http://www.jstor.org/page/info/about/policies/terms.jsp. JSTOR's Terms and Conditions of Use provides, in part, that unless you have obtained prior permission, you may not download an entire issue of a journal or multiple copies of articles, and you may use content in the JSTOR archive only for your personal, non-commercial use. Please contact the publisher regarding any further use of this work. Publisher contact information may be obtained at http://www.jstor.org/action/showPublisher?publisherCode=asih. Each copy of any part of a JSTOR transmission must contain the same copyright notice that appears on the screen or printed page of such transmission. JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact [email protected]. American Society of Ichthyologists and Herpetologists is collaborating with JSTOR to digitize, preserve and extend access to Copeia. http://www.jstor.org ICHTHYOLOGICAL NOTES 367 (1936).