U.S. Has Made Progress in Restoring Ocean Fish Magnuson-Stevens Act Is Helping Dozens of Fish Populations Recover from Overfishing, but More Is Needed

Total Page:16

File Type:pdf, Size:1020Kb

U.S. Has Made Progress in Restoring Ocean Fish Magnuson-Stevens Act Is Helping Dozens of Fish Populations Recover from Overfishing, but More Is Needed A fact sheet from July 2017 Kawika Chetron iStockphoto U.S. Has Made Progress in Restoring Ocean Fish Magnuson-Stevens Act is helping dozens of fish populations recover from overfishing, but more is needed The Magnuson-Stevens Fishery Conservation and Management Act is the primary law that governs U.S. fisheries in federal ocean waters. Enacted in 1976 and strengthened by Congress in 1996 and 2006, the act has led to considerable improvements in the health of marine fish populations and has benefited coastal communities across the country. The Magnuson-Stevens Act requires that the nation’s fishery managers take several conservation actions, including: • Preventing overfishing—when a fish population is caught at a faster rate than it can reproduce—through the use of science-based catch limits. • Rebuilding depleted populations to healthy levels that allow for long-term economic and ecological benefits. Photos: 1. Pacific lingcod populations have been restored to healthy levels using science-based management. 2. Atlantic cod stocks have failed to rebound from decades of overfishing, in part because of new 1 2 challenges, including warming waters and habitat loss. 43 U.S. Ocean Fish Populations Have Been Rebuilt Since 2000, but Fish populations classified in need of management attention Many Are Still Vulnerable Marine fish species by status and region Overfished (i.e., at an unsustainably low level) Experiencing overfishing Overfished and experiencing overfishing Atlantic highly migratory Pacific U.S. Caribbean Mid-Atlantic species* Coho salmon§ Caribbean spiny Summer flounder Bigeye tuna§ (Puget Sound: Hood Canal) lobster (Puerto Rico) U.S. fishery Blacknose shark Pacific ocean perch New England management regions Goliath grouper § Yelloweye rockfish North Pacific Blue marlin Nassau grouper Atlantic cod Pacific Bluefin tuna§ (Georges Bank) Western Pacific (west Atlantic) Pacific/Western Pacific Puerto Rico Gulf of Mexico triggerfishes and Atlantic cod Dusky shark§ (Gulf of Maine) U.S. Caribbean Pacific bluefin tuna§ filefishes complex South Atlantic Atlantic halibut Porbeagle shark § Puerto Rico wrasses Mid-Atlantic Swordfish complex Atlantic salmon New England Sandbar shark Queen conch Scalloped Western Pacific Atlantic wolffish hammerhead shark Ocean pout § South Atlantic White marlin§ Bigeye tuna (western and central Pacific) Thorny skate Blueline tilefish North Pacific Seamount groundfish Windowpane flounder complex (Gulf of Maine/Georges Hogfish Bank) Rebuilt fish populations (Hancock Seamount) (southeast Florida) Blue king crab § Winter flounder‡ (Pribilof Islands) Striped marlin Red grouper Atlantic highly migratory Pacific(continued) South Atlantic New England (western and central Pacific) (Georges Bank) species* Red porgy Winter flounder 2011 Coho salmon 2003 Yellowtail snapper 2001 Sea scallop Gulf of Mexico Red snapper (southern New England) 2003 Blacktip shark (Queets River, Washington) (South Atlantic/Gulf of 2002 Silver hake Witch flounder Mexico) Snowy grouper 2009 Swordfish 2011 Widow rockfish (Gulf of Maine/northern Gray triggerfish Yellowtail flounder (North Atlantic) 2012 Pink shrimp Georges Bank) Speckled hind 2012 Coho salmon Greater amberjack (Cape Cod/Gulf of Maine) (Strait of Juan de Fuca, 2013 Black sea bass 2003 Winter flounder† 2016 Albacore tuna Tilefish (North Atlantic) Washington) (South Atlantic) (Georges Bank) Red snapper Yellowtail flounder (Georges Bank) 2013 Chinook salmon 2007 Silver hake Warsaw grouper North Pacific (Sacramento River, Mid-Atlantic (southern Georges Bank/ Yellowtail flounder‡ California) mid-Atlantic) (southern New England/mid- Atlantic) 2007, Southern tanner 2015 Canary rockfish 2008 Bluefish 2010 Haddock crab (Georges Bank) 2012 Petrale sole 2009 Black sea bass * Highly migratory species regularly cross domestic and international boundaries, so they are managed by the National Oceanic and Atmospheric Administration in (eastern Bering Sea) 2015 (mid-Atlantic) 2010 Pollock cooperation with an advisory panel rather than by a regional fishery management council. 2017 Bocaccio 2009 Blue king crab † Species was declared rebuilt, became overfished again, and was back in a rebuilding plan as of 2010. (southern Pacific coast) 2009 Scup Haddock (St. Matthews Island) 2011 (Gulf of Maine) ‡ Species was declared rebuilt, became overfished again, and was back in a rebuilding plan as of 2015. 2011 Summer flounder 2011 Snow crab 2017 Darkblotched rockfish 2012 Acadian redfish § Fished by U.S. and international fleets. (eastern Bering Sea) 2014 Butterfish 2012 Windowpane flounder Source: National Oceanic and Atmospheric Administration, "Stock Status Updates," accessed July 17, 2017, http://www.nmfs.noaa.gov/sfa/fisheries_eco/status_of_ 2014 Tilefish fisheries/status_updates.html Pacific Gulf of Mexico (southern New England/ mid-Atlantic) © 2017 The Pew Charitable Trusts Mid-Atlantic/New England ‡ 2004 Pacific whiting 2007 Red grouper 2012 Yellowtail flounder (southern New England/ 2008 King mackerel 2005 Lingcod 2008 Monkfish mid-Atlantic) Chinook salmon 2014 Gag grouper (Gulf of Maine/northern 2016 Barndoor skate 2011 Georges Bank) (Klamath River, California) 2008 Monkfish (southern Georges Bank) 2010 Spiny dogfish For further information, please visit: pewtrusts.org/restore-ocean-fish Contact: Ted Morton, director, U.S. oceans, federal policy Media contact: Barbara Semedo, communications officer Email: [email protected] Email: [email protected] Phone: 202-540-6751 Phone: 202-540-6994 The Pew Charitable Trusts is driven by the power of knowledge to solve today’s most challenging problems. Pew applies a rigorous, analytical approach to improve public policy, inform the public, and invigorate civic life. .
Recommended publications
  • FISH LIST WISH LIST: a Case for Updating the Canadian Government’S Guidance for Common Names on Seafood
    FISH LIST WISH LIST: A case for updating the Canadian government’s guidance for common names on seafood Authors: Christina Callegari, Scott Wallace, Sarah Foster and Liane Arness ISBN: 978-1-988424-60-6 © SeaChoice November 2020 TABLE OF CONTENTS GLOSSARY . 3 EXECUTIVE SUMMARY . 4 Findings . 5 Recommendations . 6 INTRODUCTION . 7 APPROACH . 8 Identification of Canadian-caught species . 9 Data processing . 9 REPORT STRUCTURE . 10 SECTION A: COMMON AND OVERLAPPING NAMES . 10 Introduction . 10 Methodology . 10 Results . 11 Snapper/rockfish/Pacific snapper/rosefish/redfish . 12 Sole/flounder . 14 Shrimp/prawn . 15 Shark/dogfish . 15 Why it matters . 15 Recommendations . 16 SECTION B: CANADIAN-CAUGHT SPECIES OF HIGHEST CONCERN . 17 Introduction . 17 Methodology . 18 Results . 20 Commonly mislabelled species . 20 Species with sustainability concerns . 21 Species linked to human health concerns . 23 Species listed under the U .S . Seafood Import Monitoring Program . 25 Combined impact assessment . 26 Why it matters . 28 Recommendations . 28 SECTION C: MISSING SPECIES, MISSING ENGLISH AND FRENCH COMMON NAMES AND GENUS-LEVEL ENTRIES . 31 Introduction . 31 Missing species and outdated scientific names . 31 Scientific names without English or French CFIA common names . 32 Genus-level entries . 33 Why it matters . 34 Recommendations . 34 CONCLUSION . 35 REFERENCES . 36 APPENDIX . 39 Appendix A . 39 Appendix B . 39 FISH LIST WISH LIST: A case for updating the Canadian government’s guidance for common names on seafood 2 GLOSSARY The terms below are defined to aid in comprehension of this report. Common name — Although species are given a standard Scientific name — The taxonomic (Latin) name for a species. common name that is readily used by the scientific In nomenclature, every scientific name consists of two parts, community, industry has adopted other widely used names the genus and the specific epithet, which is used to identify for species sold in the marketplace.
    [Show full text]
  • Do Some Atlantic Bluefin Tuna Skip Spawning?
    SCRS/2006/088 Col. Vol. Sci. Pap. ICCAT, 60(4): 1141-1153 (2007) DO SOME ATLANTIC BLUEFIN TUNA SKIP SPAWNING? David H. Secor1 SUMMARY During the spawning season for Atlantic bluefin tuna, some adults occur outside known spawning centers, suggesting either unknown spawning regions, or fundamental errors in our current understanding of bluefin tuna reproductive schedules. Based upon recent scientific perspectives, skipped spawning (delayed maturation and non-annual spawning) is possibly prevalent in moderately long-lived marine species like bluefin tuna. In principle, skipped spawning represents a trade-off between current and future reproduction. By foregoing reproduction, an individual can incur survival and growth benefits that accrue in deferred reproduction. Across a range of species, skipped reproduction was positively correlated with longevity, but for non-sturgeon species, adults spawned at intervals at least once every two years. A range of types of skipped spawning (constant, younger, older, event skipping; and delays in first maturation) was modeled for the western Atlantic bluefin tuna population to test for their effects on the egg-production-per-recruit biological reference point (stipulated at 20% and 40%). With the exception of extreme delays in maturation, skipped spawning had relatively small effect in depressing fishing mortality (F) threshold values. This was particularly true in comparison to scenarios of a juvenile fishery (ages 4-7), which substantially depressed threshold F values. Indeed, recent F estimates for 1990-2002 western Atlantic bluefin tuna stock assessments were in excess of threshold F values when juvenile size classes were exploited. If western bluefin tuna are currently maturing at an older age than is currently assessed (i.e., 10 v.
    [Show full text]
  • Atlantic Bluefin Tuna (Thunnus Thynnus) Population Dynamics
    Environ. Sci. Technol. 2009, 43, 8522–8527 nations of the International Commission for the Conservation Atlantic Bluefin Tuna (Thunnus of Atlantic Tunas (ICCAT) currently manage ABFT fisheries thynnus) Population Dynamics assuming two units (a western stock spawning in the Gulf of Mexico, and an eastern stock which spawns in the Delineated by Organochlorine Mediterranean Sea) ostensibly separated by the 45° W meridian with little intermixing between stocks. However, Tracers tagging studies indicate that bluefin tuna undergo extensive and complex migrations, including trans-Atlantic migrations, ,† and that stock mixing could be as high as 30% (2-4). Extensive REBECCA M. DICKHUT,* - ASHOK D. DESHPANDE,‡ mixing of eastern and western stocks (35 57% bluefin tuna ALESSANDRA CINCINELLI,§ of eastern origin) within the U.S. Mid Atlantic Bight was also 18 MICHELE A. COCHRAN,† reported recently based on otolith δ O values (5). The SIMONETTA CORSOLINI,| uncertainty of stock structures due to mixing makes it difficult RICHARD W. BRILL,† DAVID H. SECOR,⊥ for fisheries managers to assess the effectiveness of rebuilding AND JOHN E. GRAVES† efforts for the dwindling western Atlantic spawning stock of Virginia Institute of Marine Science, Gloucester Point, bluefin tuna. Understanding ABFT spatial distributions and Virginia 23062, National Marine Fisheries Service, dynamics are vital for robust population assessments and Highlands, New Jersey 07732, Department of Chemistry, the design of effective management strategies, and there is University of Florence, 50019
    [Show full text]
  • IATTC-94-01 the Tuna Fishery, Stocks, and Ecosystem in the Eastern
    INTER-AMERICAN TROPICAL TUNA COMMISSION 94TH MEETING Bilbao, Spain 22-26 July 2019 DOCUMENT IATTC-94-01 REPORT ON THE TUNA FISHERY, STOCKS, AND ECOSYSTEM IN THE EASTERN PACIFIC OCEAN IN 2018 A. The fishery for tunas and billfishes in the eastern Pacific Ocean ....................................................... 3 B. Yellowfin tuna ................................................................................................................................... 50 C. Skipjack tuna ..................................................................................................................................... 58 D. Bigeye tuna ........................................................................................................................................ 64 E. Pacific bluefin tuna ............................................................................................................................ 72 F. Albacore tuna .................................................................................................................................... 76 G. Swordfish ........................................................................................................................................... 82 H. Blue marlin ........................................................................................................................................ 85 I. Striped marlin .................................................................................................................................... 86 J. Sailfish
    [Show full text]
  • Movements and Diving Behavior of Atlantic Bluefin Tuna Thunnus Thynnus in Relation to Water Column Structure in the Northwestern Atlantic
    Vol. 400: 245–265, 2010 MARINE ECOLOGY PROGRESS SERIES Published February 11 doi: 10.3354/meps08394 Mar Ecol Prog Ser Movements and diving behavior of Atlantic bluefin tuna Thunnus thynnus in relation to water column structure in the northwestern Atlantic Gareth L. Lawson1, 2,*, Michael R. Castleton1, Barbara A. Block1 1Tuna Research and Conservation Center, Stanford University, Hopkins Marine Station, 120 Oceanview Boulevard, Pacific Grove, California 93950, USA 2Present address: Biology Department, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts 02543, USA ABSTRACT: We analyzed the movements and diving behavior in relation to water column structure of 35 electronically tagged Atlantic bluefin tuna (176 to 240 cm in length at tagging) during their spring–fall period of occupancy of the Gulf of Maine, Canadian Shelf, and neighboring off-shelf waters from 1999 to 2005. Tagged fish arriving in this study region in March–April initially occupied weakly stratified off-shelf waters along the northern Gulf Stream. As waters over the continental shelf warmed in June, the fish shifted onto the shelf. Sea surface temperatures occupied were relatively constant in both off- and on-shelf waters (April–September monthly medians varying from 16.1 to 19.0°C). Dives made in the stratified waters of the shelf during summer and fall were significantly more frequent (up to 180 dives d–1) and fast (descent rates up to 4.1 m s–1) than in weakly stratified off-shelf waters occupied during spring, defining dives as excursions below tag-derived estimates of the surface isothermal layer depth (ILD). The duration and depth of dives also decreased significantly in associa- tion with changing water column structure, from medians in off-shelf waters during April of 0.45 h and 77.0 m, respectively, to 0.16 h and 24.9 m in August.
    [Show full text]
  • Table 1. Predators with Krill in Their Diet (>50
    Table 1. Predators with krill in their diet (>50% and >10% of the diet as assessed by % mass, % volume or % # at any time; adapted from Szoboszlai et al., 2015). Class Scientific Name Common Name >50% >10% Bony Fishes Anoplopoma fimbria sablefish x Bony Fishes Merluccius productus Pacific hake x Bony Fishes Oncorhynchus gorbuscha pink salmon x Bony Fishes Oncorhynchus kisutch coho salmon x Bony Fishes Oncorhynchus tshawytscha Chinook salmon x Bony Fishes Scomber japonicus Pacific mackerel x Bony Fishes Sebastes alutus Pacific ocean perch x Bony Fishes Sebastes caurinus copper rockfish x Bony Fishes Sebastes crameri darkblotched rockfish x Bony Fishes Sebastes diploproa splitnose rockfish x Bony Fishes Sebastes elongatus greenstriped rockfish x Bony Fishes Sebastes entomelas widow rockfish x Bony Fishes Sebastes flavidus yellowtail rockfish x Bony Fishes Sebastes jordani shortbelly rockfish x Bony Fishes Sebastes melanops black rockfish x Bony Fishes Sebastes pinniger canary rockfish x Bony Fishes Sebastes wilsoni pygmy rockfish x Bony Fishes Sebastes zacentrus sharpchin rockfish x Bony Fishes Thunnus alalunga albacore x Bony Fishes Trachurus symmetricus jack mackerel x Cartilaginous Fishes Prionace glauca blue shark x Cartilaginous Fishes Raja rhina longnose skate x Cartilaginous Fishes Squalus acanthias spiny dogfish x Mammals Balaenoptera borealis sei whale x Mammals Balaenoptera musculus blue whale x Mammals Balaenoptera physalus fin whale x Mammals Megaptera novaeangliae humpback whale x Seabirds Brachyramphus marmoratus marbled murrelet x Seabirds Cerorhinca monocerata rhinoceros auklet x Seabirds Larus occidentalis western gull x Seabirds Ptychoramphus aleuticus Cassin's auklet x Seabirds Puffinus griseus sooty shearwater x Seabirds Puffinus tenuirostris short-tailed shearwater x Seabirds Synthliboramphus antiquus ancient murrelet x Seabirds Uria aalge common murre x .
    [Show full text]
  • Summary of Recent New Zealand Research Into Tunas and Tuna-Related Species
    CCSBT-ERS/0602/Info05 Summary of recent New Zealand research into tunas and tuna-related species Shelton Harley Neville Smith Ministry of Fisheries PO Box 1020 Wellington INTRODUCTION The paper summarizes recent and on-going research into tunas and tuna-related species in New Zealand. This research is undertaken under contract to the New Zealand Ministry of Fisheries (MFish) and through other funding sources. Included below are summaries of MFish-funded papers describing: • Growth rate, age at maturity, longevity and natural mortality rate of Ray’s bream (Brama sp.) • Growth rate, age at maturity, longevity and natural mortality rate of moonfish (Lampris guttatus) • Age and growth of blue shark (Prionace glauca) from the New Zealand Exclusive Economic Zone • Age, growth, maturity, longevity and natural mortality of the shortfin mako shark (Isurus oxyrinchus) in New Zealand waters • Monitoring the length structure of New Zealand commercial landings of albacore tuna during the 2003−2004 fishing year • Characterisation of striped marlin fisheries in New Zealand • Swordfish stock structure • Growth rate, age at maturity, longevity and natural mortality rate of swordfish (Xiphias gladius) • New Zealand billfish and gamefish tagging, 2003–04 • The distribution of Pacific bluefin tuna (Thunnus orientalis) in the southwest Pacific Ocean, with emphasis on New Zealand waters Non-MFish funded research to be undertaken includes (summaries are not provided here): • Satellite tagging of striped marlin – funded by the New Zealand Marine Research Foundation • Kopf, R. K., Davie, P. S., and Holdsworth, J. C. (2005). Size trends and population characteristics of striped marlin, Tetrapturus audax caught in the New Zealand recreational fishery.
    [Show full text]
  • Albacore Tuna Have fl Uctuated Considerably from Year To
    Tuna [211] 86587_p211_220.indd 211 12/30/04 4:53:37 PM highlights ■ The catches of Pacifi c bluefi n tuna and North Pacifi c albacore tuna have fl uctuated considerably from year to Ocean year, but no upward or downward trends are apparent for either species. and ■ Increasing the age at entry of Pacifi c bluefi n into the fi shery might increase the yields per recruit of that Climate species. ■ The status of North Pacifi c albacore is uncertain, but most scientists believe that greater harvests of that species Changes would not be sustainable. [212] 86587_p211_220.indd 212 12/30/04 4:53:38 PM background The Inter-American Tropical Tuna Commission (IATTC) studies the tunas of the eastern Pacifi c Ocean (EPO), defi ned for its purposes as the area bounded by the coastline of North, Central, and South America, 40ºN, 150ºW, and 40ºS. The IATTC staff maintains records for most of the vessels that fi sh at the surface for skipjack tuna (Katsuwonus pelamis), yellowfi n tuna (Thunnus albacares), bigeye tuna (T. obesus), and Pacifi c bluefi n tuna (T. orientalis) in the EPO. Pacifi c bluefi n and albacore tuna (T. alalunga) are the tunas most relevant to the region of interest to PICES. Pacifi c bluefi n tuna Spawning of Pacifi c bluefi n apparently takes place only Age-1 and older fi sh are caught by purse seining, in the western Pacifi c Ocean (WPO). Some juvenile mostly during May-September between about 30°- bluefi n move from the WPO to the EPO, and then later 42°N and 140°-152°E.
    [Show full text]
  • Pacific Ocean Perch (Sebastes Alutus) Stock Assessment for the North and West Coasts of Haida Gwaii, British Columbia
    Canadian Science Advisory Secretariat (CSAS) Research Document 2013/092 Pacific Region Pacific Ocean Perch (Sebastes alutus) stock assessment for the north and west coasts of Haida Gwaii, British Columbia Andrew M. Edwards1, Rowan Haigh1 and Paul J. Starr2 1Pacific Biological Station, Science Branch, Fisheries and Oceans Canada, 3190 Hammond Bay Road, Nanaimo, British Columbia, V9T 6N7, Canada. 2Canadian Groundfish Research and Conservation Society, 1406 Rose Ann Drive, Nanaimo, British Columbia, V9T 4K8, Canada. March 2014 Foreword This series documents the scientific basis for the evaluation of aquatic resources and ecosystems in Canada. As such, it addresses the issues of the day in the time frames required and the documents it contains are not intended as definitive statements on the subjects addressed but rather as progress reports on ongoing investigations. Research documents are produced in the official language in which they are provided to the Secretariat. Published by: Fisheries and Oceans Canada Canadian Science Advisory Secretariat 200 Kent Street Ottawa ON K1A 0E6 http://www.dfo-mpo.gc.ca/csas-sccs/ [email protected] © Her Majesty the Queen in Right of Canada, 2014 ISSN 1919-5044 Correct citation for this publication: Edwards, A.M., Haigh, R., and Starr, P.J. 2014. Pacific Ocean Perch (Sebastes alutus) stock assessment for the north and west coasts of Haida Gwaii, British Columbia. DFO Can. Sci. Advis. Sec. Res. Doc. 2013/092. vi + 126 p. TABLE OF CONTENTS ABSTRACT..............................................................................................................................
    [Show full text]
  • Groundfish Harvest from Parallel Seasons in the Bering Sea-Aleutian Islands Area
    Fishery Management Report No. 08-43 Bering Sea-Aleutian Islands Area State-Waters Groundfish Fisheries and Groundfish Harvest from Parallel Seasons in 2007 by Krista Milani August 2008 Alaska Department of Fish and Game Divisions of Sport Fish and Commercial Fisheries Symbols and Abbreviations The following symbols and abbreviations, and others approved for the Système International d'Unités (SI), are used without definition in the following reports by the Divisions of Sport Fish and of Commercial Fisheries: Fishery Manuscripts, Fishery Data Series Reports, Fishery Management Reports, and Special Publications. All others, including deviations from definitions listed below, are noted in the text at first mention, as well as in the titles or footnotes of tables, and in figure or figure captions. Weights and measures (metric) General Measures (fisheries) centimeter cm Alaska Administrative fork length FL deciliter dL Code AAC mideye to fork MEF gram g all commonly accepted mideye to tail fork METF hectare ha abbreviations e.g., Mr., Mrs., standard length SL kilogram kg AM, PM, etc. total length TL kilometer km all commonly accepted liter L professional titles e.g., Dr., Ph.D., Mathematics, statistics meter m R.N., etc. all standard mathematical milliliter mL at @ signs, symbols and millimeter mm compass directions: abbreviations east E alternate hypothesis HA Weights and measures (English) north N base of natural logarithm e cubic feet per second ft3/s south S catch per unit effort CPUE foot ft west W coefficient of variation CV gallon gal copyright © common test statistics (F, t, χ2, etc.) inch in corporate suffixes: confidence interval CI mile mi Company Co.
    [Show full text]
  • Opportunities for Sustainable Fisheries in Japan
    OPPORTUNITIES FOR SUSTAINABLE FISHERIES IN JAPAN O2 REPORT: OPPORTUNITIES FOR SUSTAINABLE FISHERIES IN JAPAN JANUARY 2016 THIS REPORT OFFERS PRACTICAL RECOMMENDATIONS TO HELP RESTORE FISHERIES AND COASTAL FISHING COMMUNITIES ACROSS THE JAPANESE ARCHIPELAGO © Ana Chang 2 CONTENT Introduction/Summary 4 State of Japanese Fisheries 5 The Japanese Seafood Supply Chain 8 Seafood Supply Chain - Upstream 8 Seafood Supply Chain - Downstream 9 Seafood Imports/Exports 11 Species in Focus: Tuna Supply Chain 12 Policy/Management 14 Sustainable Seafood in Japan 17 Survey of Japanese Consumers 17 Survey of Japanese Fishermen/Managers 18 Recommendations 19 References 21 Addendum: Rapid Assessments of Eleven Japanese Fisheries 3 Introduction/Summary If you want to witness a display of marine abundance and diversity unrivaled nearly anywhere on planet earth, don’t go to the Coral Triangle. Instead, head straight to the heart of Tokyo, grab your rubber boots and take a stroll through the cavernous Tsukiji fish market. From wild Kamchatka sockeye salmon to giant tuna from the Mediterranean to Maine lobster, Tsukiji sells it all in the largest seafood market in the world. The freshest and highest quality seafood in Tsukiji still comes from waters sur- rounding the Japanese archipelago, which hold some of the most productive fishing grounds on the planet. But domestic fisheries have been in decline for decades, due to overfishing, degraded ecosystems, and negative socio-economic factors. For the average Japanese consumer, this decline has caused higher prices at the market and increasing difficulties in enjoying traditional “washoku” food items. “Unagi” (eel), for example, went from a peak commercial catch of 232 metric tons in 1963 to a measly 5 tons by 2011.1 Meanwhile, the price quadrupled in the last decade alone.
    [Show full text]
  • Variability in Trawl Survey Catches of Pacific Ocean Perch, Shortraker Rockfish, and Rougheye Rockfish in the Gulf of Alaska David M
    Biology, Assessment, and Management of North Pacific Rockfishes 411 Alaska Sea Grant College Program • AK-SG-07-01, 2007 Variability in Trawl Survey Catches of Pacific Ocean Perch, Shortraker Rockfish, and Rougheye Rockfish in the Gulf of Alaska David M. Clausen and Jeffrey T. Fujioka National Marine Fisheries Service, Auke Bay Laboratory, Juneau, Alaska Abstract Little information is available on the comparative variability of Pacific ocean perch, shortraker rockfish, and rougheye rockfish catches in Alaska trawl surveys. In this study, data were first examined for these three species from three localized experimental bottom trawl surveys in the Gulf of Alaska in 1993, 1998, and 1999 to compare the variability of catch rates for each species. When catch rates were analyzed within favorable fishing areas for each species, the coefficients of variation for Pacific ocean perch were approximately 2.5 to 3 times greater than those of shortraker or rougheye rockfish, indicating that the latter two species are much more even in their distribution. To provide a broader comparison of variability, catch rates of the three species were also examined from seven large-scale bottom trawl surveys conducted in the Gulf of Alaska from 1984 to 2001. Using geographic information systems software, subsets of the hauls in these surveys were selected in what were determined to be favorable fishing areas for either Pacific ocean perch or for shortraker and rougheye rockfish. Analysis of the species’ catch rates in these hauls indicated results that were very simi- lar to those of the experimental trawl surveys; the variability of Pacific ocean perch was 2.1-2.3 times greater than that for either shortraker or rougheye rockfish.
    [Show full text]