DOCSLIB.ORG

Variability in Trawl Survey Catches of Pacific Ocean Perch, Shortraker Rockfish, and Rougheye Rockfish in the Gulf of Alaska David M

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read 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. The results of this study indicate that a trawl survey for shortraker and rougheye rockfish based on a random design may be logistically feasible, but that an alternative design would be needed for Pacific ocean perch in order to be cost effective. 412 Clausen and Fujioka—Variability in Trawl Survey Catches Introduction Pacific ocean perch Sebastes( alutus), shortraker rockfish Sebastes( borealis), and rougheye rockfish Sebastes( aleutianus) are ecologically important and commercially valuable species that inhabit the outer continental shelf and upper continental slope of the Gulf of Alaska. Pacific ocean perch (POP) as adults are found on the outer shelf and upper slope at depths of ~100-300 m. In contrast, adult shortraker and rougheye rockfish typically inhabit deeper waters of the slope at depths of ~300-500 m (Clausen et al. 2003). Due to the fact that shortraker and rougheye often co-occur in hauls and are superficially similar in appearance, until 2005 the two species were grouped together as an assemblage in the Gulf of Alaska for fishery management purposes, whereas POP has been managed as a single species for many years. POP is the most abundant rockfish in Alaska, and in recent bottom trawl surveys of the Gulf of Alaska has ranked second in biomass among all groundfish species in this region (Martin 1997, Britt and Martin 2001). Shortraker and rougheye rockfish, while of less overall abundance, are nonetheless two of the most common species in the 300-500 m stratum on the slope. POP supports the largest rockfish trawl fishery in the Gulf of Alaska, with catches averaging about 11,000 t in the years 1999-2003 (Hanselman et al. 2003). Catches of shortraker and rougheye rockfish have been much lower, but still substantial, with an average during these years of about 1,600 t for the assemblage (Clausen et al. 2003). Despite the importance of all three species, there is little informa- tion on their comparative variability in trawl catches. POP are known to have a highly clustered distribution (Lunsford 1999); hence, randomly located hauls targeting this species usually result in many hauls with low or zero catches and infrequent hauls with relatively large catches. There has been little published on the variability of shortraker and rougheye rockfish catches, except that Ito (1999) states that they are “contagiously distributed and highly dispersed,” which implies the two fish may be similar to POP in having a clustered distribution and a rela- tively high variability. Information on the variability in trawl catches for each of these species is particularly needed, as bottom trawl surveys provide much of the data used in assessing their stock condition and in determining appropriate harvest levels. These surveys have been conducted every two or three years by the Alaska Fisheries Science Center (AFSC) since 1984, and they attempt to survey all groundfish species in offshore waters of the Gulf of Alaska out to a depth of 500 m (to 1,000 m in some surveys). However, the surveys have oftentimes been problematic for rockfish due to three major reasons: (1) sampling density in the areas inhabited by rockfish appears to be inadequate for species such as POP with a patchy distribution; (2) the stratified random survey design is a based on a stratification scheme that may not be optimal for POP in the Biology, Assessment, and Management of North Pacific Rockfishes 413 Gulf of Alaska (Lunsford 1999); and (3) the trawl gear used in the survey is not able to sample many of the rough bottom locations where species such as shortraker and rougheye rockfish are often found. As a conse- quence of these problems, the present trawl surveys have sometimes yielded wide confidence intervals around biomass estimates (often the case for POP; Hanselman et al. 2003) or uncertain trends in abundance (especially for shortraker and rougheye rockfish; Clausen et al. 2003). Therefore, to improve trawl survey results for rockfish, it appears that new surveys, designed specifically for rockfish, may be necessary. We undertook the present study to investigate the variability of trawl survey catches of POP, shortraker rockfish, and rougheye rockfish. The main objectives are to determine how the variability of shortraker and rougheye catches compares with that of POP and to provide infor- mation that will be needed to design improved trawl surveys for rock- fish. In the first part of our study, we examine results from three small, experimental trawl surveys for rockfish conducted by the chartered F/V Unimak. We were particularly interested in these surveys because we believe they may represent the best trawl data for these species in Alaska. In the second part of the study, we analyze results from seven of the large-scale AFSC trawl surveys of the Gulf of Alaska. Finally, we compare our results for the Unimak and the large-scale gulf-wide sur- veys and discuss our study’s implications for future surveys. Experimental surveys by F/V Unimak Methods and analysis of Unimak surveys The AFSC chartered a commercial factory trawler, the 56 m F/V Unimak, to conduct specialized experimental bottom trawl surveys of rockfish in 1993, 1998, and 1999. (In 1993 and 1998, the vessel was named the Unimak Enterprise). These surveys had some unique advantages when compared with the standard AFSC trawl surveys, especially the fol- lowing two. (1) In each experimental survey, the vessel was equipped with a rockfish net fitted with “rockhopper” gear along the footrope. Rockhopper gear consists of a series of split automobile tires mounted on the center section of the footrope so the gear can bounce over boul- ders and obstructions (for a detailed description of the net see Clausen et al. 1999). This allows the net to be fished over much rougher bottom than can the standard AFSC survey net. Rockhopper gear is now rou- tinely used by most commercial vessels in Alaska that bottom trawl for any species of rockfish. (2) The same skipper was used in each of the Unimak surveys—a very experienced Alaska rockfish fisherman. This is in contrast to the AFSC surveys, which used many different skippers over the years, most of whom had limited fishing experience for rock- fish in Alaska. 414 Clausen and Fujioka—Variability in Trawl Survey Catches Alaska x xxxxxxxxxxx xxxxxxx xxxxx 1999 survey n=38 hauls xxx ×xxxx×xx Gulf of Alaska xxx×xx×x xx 1998 survey n=57 hauls # eg. N 55 d 200 m contour 150 deg. W 140 deg. W Figure 1. Location of random hauls for Pacific ocean perch (POP) that were sampled in the F/V Unimak surveys. Hauls were considered to be in favorable fishing localities for POP. The actual purpose of the 1993 survey was to use rockhopper gear to conduct a pilot survey of shortraker and rougheye rockfish only (Ito 1999), whereas the purpose of the 1998 and 1999 surveys was to con- duct adaptive sampling experiments for these two species as well as for POP (Clausen et al. 1999; Hanselman et al. 2001, 2003). In each survey, a number of hauls were located at random positions, and for the present study we restricted our analysis to just these random hauls. The loca- tion and total numbers of hauls used in the analysis are shown in Figs. 1 and 2, which indicate the hauls in each survey covered relatively small geographic areas of the central and eastern Gulf of Alaska. It should also be noted that the number of random hauls fished was relatively small and ranged from 19 for shortraker and rougheye in the 1999 survey to 57 for POP in the 1998 survey. The locations of these random hauls were in what was believed to be “favorable fishing localities” for each species, which for the purpose of this paper we define to be positions where one would reasonably expect to sometimes encounter a large catch. For shortraker and rougheye rockfish in the Unimak surveys, favorable fishing localities were considered to be depths of 300-500 m on the slope and, for POP, depths of 150-300 m on the outer shelf and Biology, Assessment, and Management of North Pacific Rockfishes 415 Alaska °$r°r$r #°°°$rr$°° r°$r °#°°° r$rr°$rr$r °#°° r°r°r° °# rr °# rr rr ° 1993 survey, n =27 hauls r 1998 survey, n=23 hauls r 1999 survey, n=19 hauls Gulf of Alaska # g.
Load more

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]
  • Fishery Management Plan for Groundfish of the Bering Sea and Aleutian Islands Management Area APPENDICES
    FMP for Groundfish of the BSAI Management Area Fishery Management Plan for Groundfish of the Bering Sea and Aleutian Islands Management Area APPENDICES Appendix A History of the Fishery Management Plan ...................................................................... A-1 A.1 Amendments to the FMP ......................................................................................................... A-1 Appendix B Geographical Coordinates of Areas Described in the Fishery Management Plan ..... B-1 B.1 Management Area, Subareas, and Districts ............................................................................. B-1 B.2 Closed Areas ............................................................................................................................ B-2 B.3 PSC Limitation Zones ........................................................................................................... B-18 Appendix C Summary of the American Fisheries Act and Subtitle II ............................................. C-1 C.1 Summary of the American Fisheries Act (AFA) Management Measures ............................... C-1 C.2 Summary of Amendments to AFA in the Coast Guard Authorization Act of 2010 ................ C-2 C.3 American Fisheries Act: Subtitle II Bering Sea Pollock Fishery ............................................ C-4 Appendix D Life History Features and Habitat Requirements of Fishery Management Plan SpeciesD-1 D.1 Walleye pollock (Theragra calcogramma) ............................................................................
    [Show full text]
  • Status of the Fisheries Report an Update Through 2008
    STATUS OF THE FISHERIES REPORT AN UPDATE THROUGH 2008 Photo credit: Edgar Roberts. Report to the California Fish and Game Commission as directed by the Marine Life Management Act of 1998 Prepared by California Department of Fish and Game Marine Region August 2010 Acknowledgements Many of the fishery reviews in this report are updates of the reviews contained in California’s Living Marine Resources: A Status Report published in 2001. California’s Living Marine Resources provides a complete review of California’s three major marine ecosystems (nearshore, offshore, and bays and estuaries) and all the important plants and marine animals that dwell there. This report, along with the Updates for 2003 and 2006, is available on the Department’s website. All the reviews in this report were contributed by California Department of Fish and Game biologists unless another affiliation is indicated. Author’s names and email addresses are provided with each review. The Editor would like to thank the contributors for their efforts. All the contributors endeavored to make their reviews as accurate and up-to-date as possible. Additionally, thanks go to the photographers whose photos are included in this report. Editor Traci Larinto Senior Marine Biologist Specialist California Department of Fish and Game [email protected] Status of the Fisheries Report 2008 ii Table of Contents 1 Coonstripe Shrimp, Pandalus danae .................................................................1-1 2 Kellet’s Whelk, Kelletia kelletii ...........................................................................2-1
    [Show full text]
  • Rockfish (Sebastes) That Are Evolutionarily Isolated Are Also
    Biological Conservation 142 (2009) 1787–1796 Contents lists available at ScienceDirect Biological Conservation journal homepage: www.elsevier.com/locate/biocon Rockfish (Sebastes) that are evolutionarily isolated are also large, morphologically distinctive and vulnerable to overfishing Karen Magnuson-Ford a,b, Travis Ingram c, David W. Redding a,b, Arne Ø. Mooers a,b,* a Biological Sciences, Simon Fraser University, 8888 University Drive, Burnaby BC, Canada V5A 1S6 b IRMACS, Simon Fraser University, 8888 University Drive, Burnaby BC, Canada V5A 1S6 c Department of Zoology and Biodiversity Research Centre, University of British Columbia, #2370-6270 University Blvd., Vancouver, Canada V6T 1Z4 article info abstract Article history: In an age of triage, we must prioritize species for conservation effort. Species more isolated on the tree of Received 23 September 2008 life are candidates for increased attention. The rockfish genus Sebastes is speciose (>100 spp.), morpho- Received in revised form 10 March 2009 logically and ecologically diverse and many species are heavily fished. We used a complete Sebastes phy- Accepted 18 March 2009 logeny to calculate a measure of evolutionary isolation for each species and compared this to their Available online 22 April 2009 morphology and imperilment. We found that evolutionarily isolated species in the northeast Pacific are both larger-bodied and, independent of body size, morphologically more distinctive. We examined Keywords: extinction risk within rockfish using a compound measure of each species’ intrinsic vulnerability to Phylogenetic diversity overfishing and categorizing species as commercially fished or not. Evolutionarily isolated species in Extinction risk Conservation priorities the northeast Pacific are more likely to be fished, and, due to their larger sizes and to life history traits Body size such as long lifespan and slow maturation rate, they are also intrinsically more vulnerable to overfishing.
    [Show full text]
  • Management Plan for the Rougheye/Blackspotted Rockfish Complex (Sebastes Aleutianus and S
    DRAFT SPECIES AT RISK ACT MANAGESPECIESMENT PLAN AT RISK SERIES ACT MANAGEMENT PLAN SERIES MANAGEMENT PLAN FOR THE ROUGHEYE/BLACKSPOTTEDMANAGEMENT PLAN FOR THE ROCKFISH ROUGHEY E COMPLEXROCKFISHROUGHEYE (SEBASTES ALEUTIANUSROCKFISH COMPLEX AND S. MELANOSTICTUS(SEBASTES ALEUTIANUS) AND LONGSPINE AND S. THORNYHEADMELANOSTICTUS (SEBASTOLOBUS) AND LONGSPINE ALTIVELIS THORNYHE) IN AD CANADA(SEBAST OLOBUS ALTIVELIS)INCANADA SEBASTES ALEUTIANUS; SEBASTES MELANOSTICTUS SEBASTES ASEBASTOLOBUSLEUTIANUS; SEBASTES ALTIVELIS MEL ANOSTICTUS SEBASTOLOBUS ALTIVELIS S. aleutianus S. melanostictus 2012 Photo Credit: DFO Sebastolobus altivelis 2012 About the Species at Risk Act Management Plan Series What is the Species at Risk Act (SARA)? SARA is the Act developed by the federal government as a key contribution to the common national effort to protect and conserve species at risk in Canada. SARA came into force in 2003, and one of its purposes is “to manage species of special concern to prevent them from becoming endangered or threatened.” What is a species of special concern? Under SARA, a species of special concern is a wildlife species that could become threatened or endangered because of a combination of biological characteristics and identified threats. Species of special concern are included in the SARA List of Wildlife Species at Risk. What is a management plan? Under SARA, a management plan is an action-oriented planning document that identifies the conservation activities and land use measures needed to ensure, at a minimum, that a species of special concern does not become threatened or endangered. For many species, the ultimate aim of the management plan will be to alleviate human threats and remove the species from the List of Wildlife Species at Risk.
    [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]
  • 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]
  • Fish Bulletin 161. California Marine Fish Landings for 1972 and Designated Common Names of Certain Marine Organisms of California
    UC San Diego Fish Bulletin Title Fish Bulletin 161. California Marine Fish Landings For 1972 and Designated Common Names of Certain Marine Organisms of California Permalink https://escholarship.org/uc/item/93g734v0 Authors Pinkas, Leo Gates, Doyle E Frey, Herbert W Publication Date 1974 eScholarship.org Powered by the California Digital Library University of California STATE OF CALIFORNIA THE RESOURCES AGENCY OF CALIFORNIA DEPARTMENT OF FISH AND GAME FISH BULLETIN 161 California Marine Fish Landings For 1972 and Designated Common Names of Certain Marine Organisms of California By Leo Pinkas Marine Resources Region and By Doyle E. Gates and Herbert W. Frey > Marine Resources Region 1974 1 Figure 1. Geographical areas used to summarize California Fisheries statistics. 2 3 1. CALIFORNIA MARINE FISH LANDINGS FOR 1972 LEO PINKAS Marine Resources Region 1.1. INTRODUCTION The protection, propagation, and wise utilization of California's living marine resources (established as common property by statute, Section 1600, Fish and Game Code) is dependent upon the welding of biological, environment- al, economic, and sociological factors. Fundamental to each of these factors, as well as the entire management pro- cess, are harvest records. The California Department of Fish and Game began gathering commercial fisheries land- ing data in 1916. Commercial fish catches were first published in 1929 for the years 1926 and 1927. This report, the 32nd in the landing series, is for the calendar year 1972. It summarizes commercial fishing activities in marine as well as fresh waters and includes the catches of the sportfishing partyboat fleet. Preliminary landing data are published annually in the circular series which also enumerates certain fishery products produced from the catch.
    [Show full text]
  • Targeted Review of Biological and Ecological Information from Fisheries Research in the South East Marine Region
    TARGETED REVIEW OF BIOLOGICAL AND ECOLOGICAL INFORMATION FROM FISHERIES RESEARCH IN THE SOUTH EAST MARINE REGION FINAL REPORT B. D. Bruce, R. Bradford, R. Daley, M. Green and K. Phillips December 2002 Client: National Oceans Office Targeted review of biological and ecological information from fisheries research in the South East Marine Region Final Report B. D. Bruce, R. Bradford, R. Daley M. Green and K. Phillips* CSIRO Marine Research, Hobart * National Oceans Office December 2002 2 Table of Contents: Table of Contents:...................................................................................................................................3 Introduction.............................................................................................................................................5 Objective of review.............................................................................................................................5 Structure of review..............................................................................................................................5 Format.................................................................................................................................................6 General ecological/biological issues and uncertainties for the South East Marine Region ....................9 Specific fishery and key species accounts ............................................................................................10 South East Fishery (SEF) including the South East Trawl
    [Show full text]
  • Public Health Service Food and Drug Administration College Park, MD
    DEPARTMENT OF HEALTH AND HUMAN SERVICES Public Health Service Food and Drug Administration College Park, MD Date: April 2012 – July 2012 Project: FY12—CFSAN Sampling for Seafood Species Labeling in Wholesale Seafood BACKGROUND All FDA regulated products are required to be labeled in a manner that is truthful and not misleading. One aspect of truthful labeling is identifying seafood species by their acceptable market names. The Seafood List - FDA's Guide to Acceptable Market Names for Seafood Sold in Interstate Commerce was developed to provide guidance to industry about what FDA considers to be acceptable market names for seafood sold in interstate commerce and to assist manufacturers in labeling seafood products. Incorrect use of an established acceptable market name, which causes the labeling to be false and/or misleading, can result in the product being misbranded under section 403(a)(1) of the Federal Food Drug and Cosmetic (FD&C) Act (21 U.S.C. 343(a)(1)). OBJECTIVES The goal of this project was to determine the accuracy of seafood species labeling at the level of wholesale distribution for select products with a known history of mislabeling. This effort was conducted from April 2012 through July 2012. All samples were analyzed for species identification using the DNA Based Fish Identification (Barcoding) Method. FDA inspectors were instructed to conduct this sampling at the level of wholesale distribution (i.e. any level after import/primary processing and prior to retail sale). Both previously imported and domestic samples were suitable for collection. SAMPLE COLLECTION For this sampling effort, 100 product lots were targeted for sampling with 96 lots ultimately tested.
    [Show full text]
  • Field Guide to the Rockfishes (Scorpaenidae) of Alaska
    Field Guide to the Rockfishes (Scorpaenidae) of Alaska Extracted from: Orr, J. W., M. A. Brown, and D. C. Baker. 2000. Guide to rockfishes (Scorpaenidae) of the genera Sebastes, Sebastolobus, and Adelosebastes of the Northeast Pacific Ocean, second edition. U.S. Dep. Commer., NOAA Tech. Memo. NMFS-AFSC-117, 47 p. U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Marine Fisheries Service Alaska Fisheries Science Center Alaska Groundfish Observer Program 2002 ABSTRACT The rockfishes (family Scorpaenidae) of the northeast Pacific Ocean north of Mexico comprise five genera, three of which are included in this guide: Sebastes, Sebastolobus, and Adelosebastes. Sebastes includes some 100 species worldwide; 33, including one to be described, are presently recognized from Alaskan waters. Sebastolobus (commonly known as the thornyheads) includes only three species worldwide; all three are found in Alaskan waters. The single species of Adelosebastes (the Aleutian scorpionfish, A. latens) is known only from the Aleutian Islands and Emperor Seamounts. Of the three genera treated here, Sebastes poses the most difficulties in identification, both because of the numbers of species and because of their morphological similarity and variability. This guide includes color images of 37 species photographed under natural and electronic flash conditions in the field. Most specimens were photographed immediately after collection. iii CONTENTS Abstract.......................................................................................................
    [Show full text]