Managing Risk and Uncertainty in Deep-Sea Fisheries: Lessons from Orange Roughy

Total Page:16

File Type:pdf, Size:1020Kb

Managing Risk and Uncertainty in Deep-Sea Fisheries: Lessons from Orange Roughy Managing risk and uncertainty in deep-sea fisheries: lessons from Orange Roughy M. Lack K. Short A. Willock A joint report by TRAFFIC Oceania and the WWF Endangered Seas Programme Published by TRAFFIC Oceania and WWF Australia Acknowledgments © TRAFFIC Oceania and WWF Australia, 2003 The authors of this report acknowledge, with much appreciation, the assistance provided by the following people: Geoff Richardson, Simon All rights reserved. Latimer and staff of AFMA Communications, Paul Ryan, Mike Yates and All material appearing in this publication is copyrighted and may be Bob Stanley (AFMA); Richard Tilzey and James Findlay (BRS); Jeremy reproduced with permission. Any reproduction in full or in part of this Lyle (University of Tasmania); Martin Exel (Austral Fisheries Pty Ltd); publication must credit TRAFFIC and WWF as the copyright owner. Gail Richey (SETFIA); Jeremy Prince (Biospherics Pty Ltd); Kevin Rowling (NSW Fisheries, Australia); Nic Bax, Alan Butler, Tony Koslow The views of the authors expressed in this publication do not necessarily and Marinelle Basson (CSIRO); John Annala (Ministry of Fisheries, New reflect those of TRAFFIC or WWF. Zealand); Malcolm Clark (NIWA); Jenny Whyte (WWF-New Zealand); Steve O’Shea (Auckland University of Technology); Roz Priest; V.A. The designations of geographical entities in this publication, and the Short; Louise Heaps (WWF-UK); Sabine Christiansen (WWF-Germany); presentation of the material, do not imply the expression of any opinion Charlotte Mogenson (WWF European Policy Office); John Gordon whatsoever on the part of TRAFFIC or WWF concerning the legal status (Scottish Association of Marine Science); Crispin Ashby (FRDC); and of any country, territory, or area, or its authorities, or concerning the Gui Menezes (University of the Azores); Simon Cripps, Peter Bryant and delimitation of its frontiers or boundaries. Charlotte Breide (WWF International); Trevor Ward (University of The TRAFFIC symbol copyright and Registered trademark ownership is Western Australia); Margaret Moore (WWF Australia); Maija Sirola and held by WWF. TRAFFIC is a joint programme of WWF and IUCN. Julie Gray (TRAFFIC International). Suggested citation: Lack, M., Short, K. and Willock, A. (2003). Managing We thank reviewers Ian Cartwright (Thalassa Consulting), Matthew risk and uncertainty in deep-sea fisheries: lessons from Orange Roughy. Gianni, Steven Broad (TRAFFIC International) and Glenn Sant (TRAFFIC TRAFFIC Oceania and WWF Endangered Seas Programme. Oceania) who provided informed and helpful comments on the draft. Report title: Managing risk and uncertainty in deep-sea fisheries: lessons Preparation and publication of this document was made possible with from Orange Roughy funding support from: TRAFFIC Oceania and WWF Australia. The David and Lucile Packard Foundation ISBN: 1875941568 WWF-UK Marine Programme Photo credits: thanks to Australian Broadcasting Corporation Content WWF Australia Resource Conservation Office Sales; Australian Fisheries Management Authority; Austral Fisheries Pty WWF International Endangered Seas Programme Ltd; CSIRO Marine Research; Steve O’Shea; The Examiner. M. Lack is a consultant from Shellack Pty Ltd Newspaper credits: The Mercury: Hobart, Tasmania and The Examiner: Launceston, Tasmania. K. Short is WWF Australia’s Sustainable Fisheries Project Leader Thanks to PEter Hill of Geoscience Australia for providing the high A. Willock is the TRAFFIC Network’s Senior Fisheries Advisor resolution bathymetry image of St Helen’s Hill (Figure 1) Map prepared by Hiwire Design Pty Ltd. Illustrations by Bruce Mahalski. The report can be downloaded from the WWF and TRAFFIC websites noted below. For more information, contact: Resource Conservation Programme WWF Australia GPO Box 528, NSW 2001, Australia Tel: +61-2-9281-5515 Fax: +61-2-9281-1060 Website: www.wwf.org.au Email: [email protected] TRAFFIC Oceania GPO Box 528, NSW 2001, Australia Tel: +61-2-9280-1671 Fax: +61-2-9212-1794 Website: www.traffic.org Email: [email protected] Managing risk and uncertainty in deep-sea fisheries: lessons from Orange Roughy M. Lack K. Short A. Willock Managing risk and uncertainty in deep-sea fisheries CONTENTS Acronyms iii Executive summary iv 1. Introduction 1 Structure of the Report 1 2. Deep-sea fisheries 2 Seamount fisheries 2 Management 4 3. International trade in Orange Roughy 7 Biology 7 Orange Roughy fisheries 8 Management 9 Ecological effects of fishing 14 International trade analysis 17 4. Orange Roughy fishery case studies 21 CASE STUDY 1: Chatham Rise, New Zealand 21 The fishery 21 Stock status 22 Management 23 CASE STUDY 2: St Helen’s Hill, Australia 25 The fishery 25 Stock status 26 Management 28 CASE STUDY 3: North-east Atlantic Fisheries 31 The fisheries 31 Stock status 32 Management 33 CASE STUDY 4: Madagascar Ridge 37 The fishery 37 Stock status 39 Management 40 5. Analysis of Orange Roughy management 41 What has caused management failure? 42 Understanding of the biological characteristics 42 Adequacy of stock assessment models 43 The precautionary approach 43 Failure to address excess global fishing capacity 46 Management methods 46 Political will 46 Management regimes for discrete high seas and straddling stocks 47 Monitoring, control and surveillance measures 47 Summary 47 i Managing risk and uncertainty in deep-sea fisheries 6 Observations and recommendations for management of deep-sea fisheries 48 Precautionary approach 49 Over-capacity 51 International tools and provisions 52 High seas management by RFMOs 52 Broader international instruments 52 Ecosystem-based management approaches 55 Conclusions 57 References 58 Appendix I: Global Orange Roughy fisheries 63 Appendix II: A selection of media clippings on the St Helen’s Hill fishery 67 Figures Figure 1 A three-dimensional swath bathymetry image showing the St Helen’s Hill seamount 5 Figure 2 Reported world catch of Orange Roughy (tonnes) 9 Figure 3 Major fisheries for Orange Roughy 10 Figure 4 Imports of frozen fillets of Orange Roughy into the USA, 1995-2002 (Product weight, kg) 20 Figure 5 FAO Orange Roughy catch data and US import data (Greenweight, using two conversion rates, kg) 20 Figure 6 Trends in Chatham Rise subarea catch limits and catch 24 Figure 7 Orange Roughy catch and TACs in the Eastern Zone and St Helen's Hill 28 Figure 8 Bathymetric map of Madagascar Ridge 38 Tables Table 1 Biological and life history characteristics of Orange Roughy 7 Table 2 Bycatch in Orange Roughy fisheries 15 Table 3 Imports of frozen fillets of Orange Roughy into the USA, by country of origin, 1995-2002 (product weight, kg) 19 Table 4 Stock assessment estimates for Chatham Rise Orange Roughy stocks (tonnes) 22 Table 5 Chatham Rise subarea catch limits 1992/93 to 2002/03 (tonnes) 23 Table 6 Key developments in the St Helen's Hill/Eastern Zone stock assessment 27 Table 7 Summary of ICES assessments of north-east Atlantic Orange Roughy stocks 33 Table 8 Fishing activity in the south-west Indian Ocean 39 Table 9 Summary of management and status of known Orange Roughy fisheries 41 Boxes Box 1 Seamount ecosystems 3 Box 2 Sustainability 5 Box 3 Deep-sea sharks 6 Box 4 South Tasman Rise - a straddling Orange Roughy stock 11 Box 5 Stock assessment 14 Box 6 The rise and fall of the St Helen’s Hill through the eyes of the media 30 ii Managing risk and uncertainty in deep-sea fisheries The Examiner Fisherman Allan Barnett with some of his huge catch of Orange Roughy. 28 Jun 1989 ACRONYMS ACFM Advisory Committee on Fisheries Management (ICES) NMFS National Marine Fisheries Service (USA) AFFA Agriculture, Fisheries and Forestry, Australia ORAG Orange Roughy Assessment Group (Australia) AFMA Australian Fisheries Management Authority OSPAR Commission for the Protection of the Marine Environment of the BRS Bureau of Rural Sciences (Australia) North-east Atlantic CAY Current Annual Yield RFMO Regional Fisheries Management Organisation CBD Convention on Biological Diversity SEAFO South East Atlantic Fisheries Organisation CCAMLR Commission for the Conservation of Antarctic Marine Living SEFAG South East Fishery Assessment Group Resources SESSF South Eastern Scalefish and Shark Fishery CDS Catch Documentation Scheme (CCAMLR) SETF South East Trawl Fishery CITES Convention on International Trade in Endangered Species of Wild SETMAC South East Trawl Management Advisory Committee Fauna and Flora SSB Spawning Stock Biomass CPUE Catch Per Unit Effort TACTotal Allowable Catch CSIRO Commonwealth Scientific and Industrial Research Organisation TACC Total Allowable Commercial Catch (Australia) UN United Nations DPIE Department of Primary Industries and Energy (Australia) UNCLOS United Nations Convention on the Law of the Sea EBM Ecosystem-based Management UNFSA United Nations Fish Stocks Agreement EEZ Exclusive Economic Zone UNGA United Nations General Assembly EU European Union UNICPOLOS United Nations Open-ended Informal Consultative Process on ESD Ecologically Sustainable Development Oceans and the Law of the Sea FAOFood and Agricultural Organisation (UN) VMS Vessel Monitoring System FRDC Fisheries Research and Development Corporation WGDEEP Working Group on the Biology and Assessment of Deep-sea ICES International Council for the Exploration of the Seas Fisheries Resources (ICES) IPOA International Plan of Action WTO World Trade Organisation ITQ Individual Transferable Quota WWF World Wide Fund for Nature IUCN IUCN-The World Conservation Union IUU Illegal, Unreported and Unregulated Scientific terms MCS Monitoring, Control and Surveillance Bcurrent
Recommended publications
  • Hikurangi Plateau: Crustal Structure, Rifted Formation, and Gondwana Subduction History
    Article Geochemistry 3 Volume 9, Number 7 Geophysics 3 July 2008 Q07004, doi:10.1029/2007GC001855 GeosystemsG G ISSN: 1525-2027 AN ELECTRONIC JOURNAL OF THE EARTH SCIENCES Published by AGU and the Geochemical Society Click Here for Full Article Hikurangi Plateau: Crustal structure, rifted formation, and Gondwana subduction history Bryan Davy Institute of Geological and Nuclear Sciences, P.O. Box 30368, Lower Hutt, New Zealand ([email protected]) Kaj Hoernle IFM-GEOMAR, Wischhofstraße 1-3, D-24148 Kiel, Germany Reinhard Werner Tethys Geoconsulting GmbH, Wischhofstraße 1-3, D-24148 Kiel, Germany [1] Seismic reflection profiles across the Hikurangi Plateau Large Igneous Province and adjacent margins reveal the faulted volcanic basement and overlying Mesozoic-Cenozoic sedimentary units as well as the structure of the paleoconvergent Gondwana margin at the southern plateau limit. The Hikurangi Plateau crust can be traced 50–100 km southward beneath the Chatham Rise where subduction cessation timing and geometry are interpreted to be variable along the margin. A model fit of the Hikurangi Plateau back against the Manihiki Plateau aligns the Manihiki Scarp with the eastern margin of the Rekohu Embayment. Extensional and rotated block faults which formed during the breakup of the combined Manihiki- Hikurangi plateau are interpreted in seismic sections of the Hikurangi Plateau basement. Guyots and ridge- like seamounts which are widely scattered across the Hikurangi Plateau are interpreted to have formed at 99–89 Ma immediately following Hikurangi Plateau jamming of the Gondwana convergent margin at 100 Ma. Volcanism from this period cannot be separately resolved in the seismic reflection data from basement volcanism; hence seamount formation during Manihiki-Hikurangi Plateau emplacement and breakup (125–120 Ma) cannot be ruled out.
    [Show full text]
  • Hoplostethus Atlanticus Fisheries Relating to the South Pacific Regional Fishery Management Organisation
    SP-07-SWG-INF-09 Chile 13 May 2009 Information describing orange roughy Hoplostethus atlanticus fisheries relating to the South Pacific Regional Fishery Management Organisation WORKING DRAFT 04 MAY 2007 1. Overview ................................................................................................................ 2 2. Taxonomy .............................................................................................................. 3 2.1 Phylum ............................................................................................................. 3 2.2 Class ................................................................................................................. 3 2.3 Order ................................................................................................................ 3 2.4 Family .............................................................................................................. 3 2.5 Genus and species ............................................................................................ 3 2.6 Scientific synonyms ......................................................................................... 3 2.7 Common names ............................................................................................... 3 2.8 Molecular (DNA or biochemical) bar coding .................................................. 3 3. Species characteristics ........................................................................................... 4 3.1 Global distribution and depth range
    [Show full text]
  • Activity and Food Choice of Piscivorous Perch (Perca Fluviatilis)
    Freshwater Biology (2002) 47, 2370–2379 Activity and food choice of piscivorous perch (Perca fluviatilis) in a eutrophic shallow lake: a radio-telemetry study LENE JACOBSEN, SØREN BERG, MADS BROBERG, NIELS JEPSEN and CHRISTIAN SKOV Danish Institute for Fisheries Research, Department of Inland Fisheries, Vejlsøvej, Silkeborg, Denmark SUMMARY 1. Radio transmitters were implanted in large perch (27–37 cm) in a shallow lake in Denmark. Between 6 and 13 perch were tracked every 3 h for 24-h periods twice (summer) or once a month (winter) from August 1997 to July 1998. Activity levels were recorded as minimum distance moved per hour. 2. No significant differences in activity levels of individual fish were observed. 3. Highest activities were observed at daytime with peaks at dawn and dusk or midday. This diel pattern was most pronounced from October to April, whereas diel variations were less in the summer months, with no peaks occurring in midsummer. The general lack of activity at night supports the idea that perch is a visually oriented forager. 4. There was no significant relationship between daytime activity during the year and temperature or day length, but nighttime activity was correlated with temperature. In contrast with previous findings, activity levels varied little seasonally, except for high activity levels that occurred concomitantly with high temperatures in August. Instead, we found a significant relationship between the total distances moved per day and temperature, indicating that perch moved at the same average speed in the wintertime, but did so for shorter periods than in summer because of shorter day lengths. 5.
    [Show full text]
  • Clean &Unclean Meats
    Clean & Unclean Meats God expects all who desire to have a relationship with Him to live holy lives (Exodus 19:6; 1 Peter 1:15). The Bible says following God’s instructions regarding the meat we eat is one aspect of living a holy life (Leviticus 11:44-47). Modern research indicates that there are health benets to eating only the meat of animals approved by God and avoiding those He labels as unclean. Here is a summation of the clean (acceptable to eat) and unclean (not acceptable to eat) animals found in Leviticus 11 and Deuteronomy 14. For further explanation, see the LifeHopeandTruth.com article “Clean and Unclean Animals.” BIRDS CLEAN (Eggs of these birds are also clean) Chicken Prairie chicken Dove Ptarmigan Duck Quail Goose Sage grouse (sagehen) Grouse Sparrow (and all other Guinea fowl songbirds; but not those of Partridge the corvid family) Peafowl (peacock) Swan (the KJV translation of “swan” is a mistranslation) Pheasant Teal Pigeon Turkey BIRDS UNCLEAN Leviticus 11:13-19 (Eggs of these birds are also unclean) All birds of prey Cormorant (raptors) including: Crane Buzzard Crow (and all Condor other corvids) Eagle Cuckoo Ostrich Falcon Egret Parrot Kite Flamingo Pelican Hawk Glede Penguin Osprey Grosbeak Plover Owl Gull Raven Vulture Heron Roadrunner Lapwing Stork Other birds including: Loon Swallow Albatross Magpie Swi Bat Martin Water hen Bittern Ossifrage Woodpecker ANIMALS CLEAN Leviticus 11:3; Deuteronomy 14:4-6 (Milk from these animals is also clean) Addax Hart Antelope Hartebeest Beef (meat of domestic cattle) Hirola chews
    [Show full text]
  • Benthic Invertebrate Bycatch from a Deep-Water Trawl Fishery, Chatham Rise, New Zealand
    AQUATIC CONSERVATION: MARINE AND FRESHWATER ECOSYSTEMS, VOL. 7, 27±40 (1997) CASE STUDIES AND REVIEWS Benthic invertebrate bycatch from a deep-water trawl fishery, Chatham Rise, New Zealand P. KEITH PROBERT1, DON G. MCKNIGHT2 and SIMON L. GROVE1 1Department of Marine Science, University of Otago, PO Box 56, Dunedin, New Zealand 2National Institute of Water and Atmospheric Research Ltd, PO Box 14-901, Kilbirnie, Wellington, New Zealand ABSTRACT 1. Benthic invertebrate bycatch was collected during trawling for orange roughy (Hoplostethus atlanticus) at water depths of 662±1524 m on the northern and eastern Chatham Rise, New Zealand, in July 1994. Seventy-three trawl tows were examined, 49 from `flat' areas and 24 from two groups of `hills' (small seamounts). Benthos was recorded from 82% of all tows. 2. Some 96 benthic species were recorded including Ophiuroidea (12 spp.), Natantia (11 spp.), Asteroidea (11 spp.), Gorgonacea (11 spp.), Holothuroidea (7 spp.), and Porifera (6 spp.). 3. Cluster analysis showed the bycatch from flats and hills to differ significantly. Dominant taxa from flats were Holothuroidea, Asteroidea and Natantia; whereas taxa most commonly recorded from hills were Gorgonacea and Scleractinia. Bycatch from the two geographically separate groups of hills also differed significantly. 4. The largest bycatch volumes comprised corals from hills: Scleractinia (Goniocorella dumosa), Stylasteridae (Errina chathamensis) and Antipatharia (?Bathyplates platycaulus). Such large sessile epifauna may significantly increase the complexity of benthic habitat and trawling damage may thereby depress local biodiversity. Coral patches may require 4100 yr to recover. 5. Other environmental effects of deep-water trawling are briefly reviewed. 6. There is an urgent need to assess more fully the impact of trawling on seamount biotas and, in consequence, possible conservation measures.
    [Show full text]
  • Order ZEIFORMES PARAZENIDAE Parazens P.C
    click for previous page Zeiformes: Parazenidae 1203 Order ZEIFORMES PARAZENIDAE Parazens P.C. Heemstra, South African Institute for Aquatic Biodiversity, South Africa iagnostic characters: Small to moderate-sized (to 30 cm) oblong fishes, the head and body com- Dpressed; body depth slightly less than head length, contained 2.6 to 2.9 times in standard length; head naked, the bones thin and soft; opercular bones weakly serrate; mouth large, terminal, the upper jaw extremely protrusile; maxilla widely expanded posteriorly, and mostly exposed when mouth is closed; no supramaxilla; jaws with 1 or 2 rows of small, slender, conical teeth; vomer with a few short stout teeth;gill rakers (including rudiments) 2 on upper limb, 8 on lower limb.Eye diameter about 1/3 head length and slightly less than snout length.Branchiostegal rays 7.Dorsal fin divided, with 8 slender spines and 26 to 30 soft rays; anal fin with 1 minute spine and 30 to 32 soft rays; dorsal-, anal-, and pectoral-fin rays un- branched; caudal fin forked, with 11 principal rays and 9 branched rays; pectoral fin with 15 or 16 rays, shorter than eye diameter; pelvic fins with 1 unbranched and 5 or 6 branched soft rays, but no spine, fin origin posterior to a vertical at pectoral-fin base. Scales moderate in size, weakly ctenoid, and deciduous; 2 lateral lines originating on body at upper end of operculum and running posteriorly about 4 scale rows apart, gradually converging to form a single line on caudal peduncle. Caudal peduncle stout, the least depth about equal to its length and slightly less than eye diameter.Vertebrae 34.Colour: body reddish or silvery; large black blotch on anterior margin of dorsal fin.
    [Show full text]
  • Lake Superior Food Web MENT of C
    ATMOSPH ND ER A I C C I A N D A M E I C N O I S L T A R N A T O I I O T N A N U E .S C .D R E E PA M RT OM Lake Superior Food Web MENT OF C Sea Lamprey Walleye Burbot Lake Trout Chinook Salmon Brook Trout Rainbow Trout Lake Whitefish Bloater Yellow Perch Lake herring Rainbow Smelt Deepwater Sculpin Kiyi Ruffe Lake Sturgeon Mayfly nymphs Opossum Shrimp Raptorial waterflea Mollusks Amphipods Invasive waterflea Chironomids Zebra/Quagga mussels Native waterflea Calanoids Cyclopoids Diatoms Green algae Blue-green algae Flagellates Rotifers Foodweb based on “Impact of exotic invertebrate invaders on food web structure and function in the Great Lakes: NOAA, Great Lakes Environmental Research Laboratory, 4840 S. State Road, Ann Arbor, MI A network analysis approach” by Mason, Krause, and Ulanowicz, 2002 - Modifications for Lake Superior, 2009. 734-741-2235 - www.glerl.noaa.gov Lake Superior Food Web Sea Lamprey Macroinvertebrates Sea lamprey (Petromyzon marinus). An aggressive, non-native parasite that Chironomids/Oligochaetes. Larval insects and worms that live on the lake fastens onto its prey and rasps out a hole with its rough tongue. bottom. Feed on detritus. Species present are a good indicator of water quality. Piscivores (Fish Eaters) Amphipods (Diporeia). The most common species of amphipod found in fish diets that began declining in the late 1990’s. Chinook salmon (Oncorhynchus tshawytscha). Pacific salmon species stocked as a trophy fish and to control alewife. Opossum shrimp (Mysis relicta). An omnivore that feeds on algae and small cladocerans.
    [Show full text]
  • Farmed Milkfish As Bait for the Tuna Pole-And-Line Fishing Industry in Eastern Indonesia: a Feasibility Study Arun Padiyar P
    Farmed Milkfish as Bait for the Tuna Pole-and-line Fishing Industry in Eastern Indonesia: A Feasibility Study Arun Padiyar P. & Agus A. Budhiman Aquaculture Specialists WorldFish This report has been authored by Arun Padiyar P. & Agus A. Budhiman, in association with WorldFish and International Pole & Line Foundation and Asosiasi Perikanan Pole-and-line dan Handline Indonesia. This document should be cited as: Padiyar, A. P. & Budhiman, A. A. (2014) Farmed Milkfish as Bait for the Tuna Pole-and-line Fishing Industry in Eastern Indonesia: A Feasibility Study, IPNLF Technical Report No. 4, International Pole and line Foundation, London 49 Pages WorldFish is an international, nonprofit research organization that harnesses the potential of fisheries and aquaculture to reduce hunger and poverty. In the developing world, more than one billion poor people obtain most of their animal protein from fish and 250 million depend on fishing and aquaculture for their livelihoods. WorldFish is a member of CGIAR, a global agriculture research partnership for a food secure future. Asosiasi Perikanan Pole and Line dan Handline Indonesia (AP2HI) are an Indonesian task force dedicated to supporting the development of coastal tuna fishing activities in Indonesia, with members including fishers, exporters, processors and producers. With representation across the value chain for both pole-and-line and hand line, AP2HI play a lead role in encouraging efficiency within industry and to align with international market requirements. AP2HI promote fair, transparent, sustainable use of Indonesia’s resources and work to gain further support for their fishery. AP2HI represent a shared voice for all businesses involved in pole-and-line and hand line fisheries in Indonesia.
    [Show full text]
  • Composition of Farmed and Wild Yellow Perch (Perca Flavescens)
    ARTICLE IN PRESS JOURNAL OF FOOD COMPOSITION AND ANALYSIS Journal of Food Composition and Analysis 19 (2006) 720–726 www.elsevier.com/locate/jfca Original Article Composition of farmed and wild yellow perch (Perca flavescens) S. Gonza´ leza,Ã, G.J. Flicka, S.F. O’Keefea, S.E. Duncana, E. McLeanb, S.R. Craigc aDepartment of Food Science and Technology (0418), Colleges of Agriculture and Life Sciences, Virginia Polytechnic Institute and State University, Duck Pond Dr. Blacksburg, VA 24061, USA bCollege of Natural Resources, Virginia Polytechnic Institute and State University, Blacksburg VA, 24061, USA cVirginia Maryland Regional College of Veterinary Medicine, Blacksburg VA, 24061, USA Received 11 October 2004; received in revised form 24 January 2006; accepted 24 January 2006 Abstract This study was carried out to determine if there were differences in the chemical, physical and sensorial properties between wild and farmed yellow perch. Fillets from farmed yellow perch (Perca flavescens) fed with a commercial diet were compared to wild yellow perch fillets from the Great Lakes of the United States. Mineral, fatty acid and amino acid contents, proximate composition, texture, color and sensory analyses were determined for both treatments. The data were subjected to one-way ANOVA using the statistical analysis system (SAS). Fat content of farmed yellow perch was significantly higher, while protein content was significantly lower, than wild yellow perch. A variety of fatty acids was significantly different between wild and farmed yellow perch. For example, arachidonic acid (20:4 n-6) was significantly higher (Pp0.05) in wild yellow perch fillets; however, no significant differences were found in the total amount of n-3 fatty acids (30% of total fatty acids).
    [Show full text]
  • Charactensation of the Alfonsino (Beryx Splendens) Fishery in BYX 3
    ISSN 1175-1584 MINISTRY OF FISHERIES Te Tautiaki i nga lid a Tangaroa Charactensation of the alfonsino (Beryx splendens) fishery in BYX 3 A. D. Langley N. A Walker New Zealand Fisheries Assessment Report 2002129 July 2002 Characterisation of the alfonsino (Beryx spZendm) fishery in BYX 3 A D. Langley N. A Walker Trophia Ltd PO Box 60 Kaikoura New Zealand Fisheries Assessment Report 2002129 July 2002 Published by Ministry of Fisheries Wellington 2002 ISSN 1175-1584 0 Ministry of Fisheries 2002 Citation: Langley, A.D.; Walker, N.A. (2002). Characterisation of the alfonsino (Beysplendens) fishery in BYX 3. New Zealand Fisheries Assessment Report 2002/29.40 p. This series continues the informal New Zealand Fisheries Assessment Research Document series which ceased at the end of 1999. EXECUTIVE SUMMARY Langley, A.D.; Walker, N.A. (2002). Characterisation of the alfonsino (Beryx splendem) fishery in BYX 3. New Zealand Fisheries Assessment Report 2002B9.40 p. Alfonsino, Belyx splendens, are distributed worldwide in temperate and bopical waters with the exception of the northeastern Pacific. The commercial fishery in New Zealand fishes seamounts and underwater ridges at depths ranging from 200 to 1000 m. In BYX 3, the alfonsino fishery off the east coast of the south island of New Zealand, a target trawl fishery has developed recently, particularly to the southeast of the Chatham Islands, which has resulted in a large increase in catches and a concomitant increase in bycatch of bluenose, EfypezogIypJze antarctica. These developments prompted concerns regarding the status of the stocks and the Ministry of Fisheries commissioned a review of the fishery.
    [Show full text]
  • LOBSTER LAKE T3R14, Piscataquis Co
    LITTLE LOBSTER LAKE T3R14, Piscataquis Co. U.S.G.S. Penobscot Farm, Pine Stream Flowage, Me (7 ½’) Fishes Landlocked salmon Minnows Brook trout Golden shiner Rainbow smelt Common shiner White perch Blacknose dace Yellow perch Creek chub White sucker Physical Characteristics Area - 230 acres Temperatures: Surface - 730F Maximum depth - 36 feet 28 feet - 520F Principal fishery: White perch Little Lobster Lake is located north of Lobster Lake. It is accessible by a gravel road that crosses the outlet. The 2-mile long outlet to Lobster Lake has no physical barriers to fish migration. Large populations of white perch, yellow perch, and suckers limit the ability of the pond to maintain a desirable brook trout fishery. By mid-summer, there is a deficiency in dissolved oxygen at depths below 20 feet. In 1969, the Department constructed a barrier dam on the outlet and attempted to reclaim Little Lobster Lake using rotenone. Shortly after the reclamation the barrier dam washed out and all of the original species reestablished. In the early 1980’s, Little Lobster Lake was one of two waters chosen to test the potential of landlocked salmon treated to be sterile. The purpose of the trial was to produce above-average-size salmon. The treatment and the test failed and the project was discontinued. A few wild salmon and wild brook trout will be produced each year. However, the principal management should continue to emphasize white perch. Surveyed - July, 1964 Revised - 2003 Maine Department of Inland Fisheries and Wildlife Funded in part by Federal Aid in Fish Restoration Act under Federal Project F-28-P L2946E .
    [Show full text]
  • Orange Roughy New Zealand
    Orange Roughy Hoplostethus atlanticus Image ©Monterey Bay Aquarium New Zealand Bottom Trawl July 21, 2014 Andy Woolmer and Jess Woo, Consulting Researcher 2 About Seafood Watch® The Monterey Bay Aquarium Seafood Watch® program evaluates the ecological sustainability of wild- caught and farmed seafood commonly found in the North American marketplace. Seafood Watch defines sustainable seafood as originating from sources, whether wild-caught or farmed, which can maintain or increase production in the long-term without jeopardizing the structure or function of affected ecosystems. The program’s mission is to engage and empower consumers and businesses to purchase environmentally responsible seafood fished or farmed in ways that minimize their impact on the environment or are in a credible improvement project with the same goal. Each sustainability recommendation is supported by a seafood report. Each report synthesizes and analyzes the most current ecological, fisheries and ecosystem science on a species, then evaluates this information against the program’s Sustainability Criteria to arrive at a recommendation of “Best Choice,” “Good Alternative,” or “Avoid.” In producing the seafood reports, Seafood Watch utilizes research published in academic, peer-reviewed journals whenever possible. Other sources of information include government technical publications, fishery management plans and supporting documents, and other scientific reviews of ecological sustainability. Seafood Watch research analysts also communicate with ecologists, fisheries and aquaculture scientists, and members of industry and conservation organizations when evaluating fisheries and aquaculture practices. Capture fisheries and aquaculture practices are highly dynamic; as the scientific information on each species changes, Seafood Watch’s sustainability recommendations and the underlying seafood reports will be updated to reflect these changes.
    [Show full text]