The Emerging View of New England Cod Stock Structure
|
|
- Dortha Horn
- 5 years ago
- Views:
Transcription
1 Cod Population Structure and New England Fisheries Symposium: Furthering our understanding by integrating knowledge gained through science and fishing Putting it All Together: The Emerging View of New England Cod Stock Structure Steve Cadrin University of Massachusetts, Dartmouth School for Marine Science & Technology
2 The Six Blind Men and the Elephant It s a spear It s a snake It s a fan It s a wall It s a rope It s a tree
3 Interdisciplinary Stock Identification Geographic distribution entire species range and discrete areas Fishing grounds Surveys (juveniles, adults, eggs & larvae) Movement among areas Tagging Egg and larval dispersal Geographic variation among areas Genetics reproductive isolation or adaptation to local environments Phenotypic traits (influenced by genetics and environment): growth rate, reproductive rates, longevity, shape, color, Environmental signals (natural tags): chemistry, parasites,
4 Interdisciplinary Analysis of Cod Stock Structure Previous reviews Traditional analyses (Wise & Jensen 1960, Templeman 1962, Wise 1963) Stock assessment & management units (Serchuk & Wood 1979, Serchuk & Wigley 1992) Recent workshops & investigations (Annala 2012, Zemeckis et al. 2014) Atlantic Cod Stock Structure Working Group ( )
5 Wise & Jensen (1960) Cod Groups eastern Georges Bank, which apparently mixes little with the more westerly and northerly groups although some of the large and older fish do appear to wander off to join the populations of western Nova Scotia (Subarea 4). West of the shoals of Georges Bank (about 68 o W.) there is another population which summers in the great South Channel (about 69 o W.), particularly on the western side, and which spends the better part of the rest of the year inshore in the Nantucket Shoals-Chatham region. North of this group of fish are those of the Gulf of Maine, one or more sedentary stocks. Joining the Nantucket Shoals-Chatham fish in the summer are fish whose winter habitat is outside the Convention Area. They migrate along the Rhode Island, Long Island and New Jersey shores in the autumn, some years reaching as far as North Carolina (about 35 o N)
6 Templeman (1962) Cod stocks in the NW Atlantic
7 Wise (1963) Cod Groups in New England A synthesis of tagging, length composition of catch, parasites, meristics, bathymetry and hydrography suggested four distinct groups off New England: 1. The cod of the offshore banks (Georges and Browns) are closely related to the fish of the southwestern Nova Scotia coast. 2. The cod of the Gulf of Maine, probably divided into many subgroups, and receiving considerable recruitment from the south. 3. The cod of southern New England and the South Channel. 4. The New Jersey coastal cod, which spend part of the year mingled to a greater or lesser degree with the southern New England fish. Cod on Georges Bank are divided from the Great South Channel stock by western shoals of the Bank, at about 68 o W (Wise 1958).
8 U.S. Management Units (Serchuk & Wood 1979) Similar trends in growth rates, survey indices, and commercial catch compositions between Georges Bank and more southern areas, as well as the apparent absence of juvenile cod from the Mid-Atlantic region justified a common approach to assessment and management for both areas. The question of biological stock identity of the southerly cod populations may be moot relative to management concerns. If the similarities between the Southern New England-Middle Atlantic and Georges Bank cod populations result from similar biotic and environmental factors, management measures applied to the two groupings as a unit should produce similar responses within each group. The Gulf of Maine is considered as a separate management unit.
9 US & Canadian Management Units Separate stocks of cod on Georges Bank, in the Gulf of Maine Basin, and on the Scotian Shelf (including one on Browns Bank). Differences in growth and meristics among all three areas Peak spawning on the Scotian Shelf is one month later than that on Georges Bank Tagging, parasites, egg & larval distributions confirm the separateness of these stocks.
10 Canadian Management Units (Hunt 1989) After the US and Canadian boundary decision in 1984, Canada concluded that the Georges Bank cod resource could be partitioned in to two management units: Eastern Georges Bank cod (unit areas 5Zj and 5Zm) The remainder of Div. 5Z and Subarea 6
11 Begg et al. (1999) Compared cod distributions, growth, maturity and mortality among areas off New England Adjacent concentrations on Georges Bank and in the Gulf of Maine, with a division between cod on eastern and western Georges Bank. In most decades, growth rates (K) were different between the Gulf of Maine, western Georges Bank and eastern Georges Bank, with the fastest growth on eastern Georges. In most decades, Georges Bank cod matured younger (age at 50% maturity, A 50 ), with some differences in maturity between eastern as western Georges. Mortality rates were similar among areas. Life history differences support the two current cod stocks and provided some evidence that cod on Georges Bank could be divided into eastern and western components with disjunct distributions across the Bank during autumn.
12 Tallack (2009) Significant growth variation was found between management areas (4X, 5Y, 5Z) and between fine-scale areas (Inshore Gulf of Maine, Georges Bank, Cape Cod and the Bay of Fundy). 5Y 5Z 4X CC IGOM BoF GB
13 2012 Cod Stock Structure Workshop Objectives Review existing data, information, and results of analyses relevant to the stock structure of cod in the Scotian Shelf, Georges Bank, Gulf of Maine, and southern New England regions. Make recommendations on the most likely biological stock structure in these regions (including sub-stock structure if warranted), considering the current management units as a null hypothesis and other stock structure scenarios as alternative hypotheses. Make recommendations for any future research required to evaluate the most likely biological stock structure. Provide advice on the alignment (or mis-alignment) of the current management unit boundaries vis-à-vis the most likely biological stock structure
14 2012 Cod Stock Structure Workshop Conclusions About Broad-Scale Stock Structure Conceptualizing the most likely biological stock structure is essential for the next steps of evaluating alternative management units and whether they are more likely to achieve fishery objectives. Any management unit boundary will be a simplification of a more complex ecosystem, but if the simplification sufficiently reflects reality, we can meet our fishery and conservation objectives (optimum yield, preventing overfishing, etc.). All information from U.S. waters indicates that there are three genetic stocks: 1. Offshore - Eastern Georges Bank (with some connectivity with the Scotian Shelf); 2. Inshore - Northern, Spring-Spawning Complex; and 3. Inshore - Southern, Winter-Spawning Complex. Information from more traditional stock identification information generally supports the genetic perspective (e.g., tagging, growth, larval dispersal). Cod in the eastern Gulf of Maine appear to be distinct from other groups.
15 2012 Cod Stock Structure Workshop Conclusions About Fine-Scale Stock Structure: Larval retention and multi-year fidelity to local spawning sites suggest fine-scale metapopulation structure. Some traditional spawning groups were depleted, and have not been re-colonized by more productive groups. Depletion of historical spawning groups is most apparent in the eastern Gulf of Maine, the Mid-Atlantic, the Plymouth Grounds, and recently Nantucket Shoals. The Workshop agreed that all genetic information available from U.S. waters is not entirely congruent with current management unit boundaries. Many of the workshop participants felt that there was compelling evidence that the current management units need to be revised. The Workshop did not reach any conclusions on what the most appropriate management units might be.
16 Zemeckis et al. (2014)
A. SOUTHERN NEW ENGLAND / MID-ATLANTIC (SNE/MA) WINTER FLOUNDER ASSESSMENT SUMMARY FOR 2011
A. SOUTHERN NEW ENGLAND / MID-ATLANTIC (SNE/MA) WINTER FLOUNDER ASSESSMENT SUMMARY FOR 2011 State of Stock: In 2010 the SNE/MA winter flounder stock was overfished but overfishing was not occurring. The
More informationEssential Fish Habitat Description Atlantic cod (Gadus morhua)
Description Atlantic cod (Gadus morhua) In its Report to Congress: Status of the Fisheries of the United States (September 1997), NMFS determined the Gulf of Maine stock of cod is considered overfished,
More informationHADDOCK ON THE SOUTHERN SCOTIAN SHELF AND IN THE BAY OF FUNDY (DIV. 4X/5Y)
Canadian Science Advisory Secretariat Science Advisory Report 26/47 HADDOCK ON THE SOUTHERN SCOTIAN SHELF AND IN THE BAY OF FUNDY (DIV. 4X/5Y) Context Haddock (Melanogrammus aeglefinus) are found on both
More informationMap Showing NAFO Management Units
Map Showing NAFO Management Units Biology Are 6 species of seals in Atlantic Canadian waters, all of which occur in Newfoundland Two Arctic Species (Ringed, Bearded) Two temperate (Grey, Harbour) Two migratory
More informationASMFC Stock Assessment Overview: Red Drum
Introduction This document presents a summary of the 217 stock assessments for red drum. These assessments were initially conducted through the Southeast Data, Assessment and Review (SEDAR) process using
More informationTAC Reported Landings * - By-catch only
DFO Atlantic Fisheries Stock Status Report 96/68E 4Vn 3Ps 4W 4Vs EASTERN SCOTIAN SHELF HADDOCK Background Haddock on the eastern Scotian Shelf and southern Gulf of St. Lawrence are considered as a single
More informationSurf Clams: Latitude & Growth
Surf Clams: Latitude & Growth East Coast MARE Materials For the leader: Projector Whiteboard to project data graph onto For the activity: Copy of data table Copy of map Computer program to graph in or
More informationGulf of Maine Research Institute Responsibly Harvested Seafood from the Gulf of Maine Region Report on Atlantic Sea Scallops (Inshore Canada)
Gulf of Maine Research Institute Responsibly Harvested Seafood from the Gulf of Maine Region Report on Atlantic Sea Scallops (Inshore Canada) The fishery is managed by a competent authority and has a management
More informationASMFC Stock Assessment Overview: Atlantic Menhaden
Introduction This document presents a summary of the 217 Stock Assessment Update for Atlantic menhaden. The assessment is an update to the 215 Benchmark Stock Assessment that was peer reviewed by an independent
More informationSpecies Profile: Red Drum Benchmark Assessment Finds Resource Relatively Stable with Overfishing Not Occurring
Red Drum Sciaenops ocellatus Management Unit: New Jersey - Florida Interesting Facts: * The name is derived from their color and the fact that during spawning time males produce a drum-like noise by vibrating
More information4.9.5 Norwegian spring-spawning herring
4.9.5 Norwegian springspawning herring State of the stock Spawning biomass in relation to precautionary limits Acceptable Fishing mortality in relation to precautionary limits Acceptable Fishing mortality
More informationRed Sea bream in Subareas VI, VII and VIII
Stock Annex; Red Sea bream in Subareas VI, VII and VIII Stock specific documentation of standard assessment procedures used by ICES. Stock sbr-678_sa Working Group Red Sea bream (Pagellus bogaraveo) in
More informationAtlantic States Marine Fisheries Commission
Atlantic States Marine Fisheries Commission 1050 N. Highland Street Suite 200A-N Arlington, VA 22201 703.842.0740 703.842.0741 (fax) www.asmfc.org Dr. Louis B. Daniel, III, (NC), Chair Douglas E. Grout
More informationASMFC Stock Assessment Overview: Red Drum
Purpose The purpose of this document is to improve the understanding and transparency of the Commission s stock assessment process and results. It is the first of several that will be developed throughout
More information10.3 Advice May 2014
1.3 Advice May 214 ECOREGION STOCK North Atlantic Atlantic salmon from North America Advice for 214 Because the NASCO Framework of Indicators of North American stocks for 213 (run in January 214) did not
More informationASMFC Stock Assessment Overview: American Lobster
Introduction The 215 benchmark stock assessment for lobster is the most comprehensive evaluation of stock status to date. It differs from previous stock assessments in that it combines the Gulf of Maine
More informationMap Showing NAFO Management Units
Map Showing NAFO Management Units Unique biological characteristics dark coloration on both sides compared to almost all other flatfish species left eye not fully migrated giving it an unusually wide
More informationASSESSMENT OF THE WEST COAST OF NEWFOUNDLAND (DIVISION 4R) HERRING STOCKS IN 2011
Canadian Science Advisory Secretariat Science Advisory Report 212/24 ASSESSMENT OF THE WEST COAST OF NEWFOUNDLAND (DIVISION 4R) HERRING STOCKS IN 211 Context Figure 1. Map of unit areas of NAFO Division
More informationNorth Labrador Arctic Charr
Fisheries and Oceans Pêches et Océans Canada Canada DFO Science Newfoundland Region Stock Status Report D2-07(2001) substantive in some years. The north Labrador area is composed of various stock complexes
More informationFish Conservation and Management
Fish Conservation and Management CONS 486 Northern Atlantic Cod: A management and conservation failure Chapter 12 Ross Cod fisheries: rich in history During the early to mid 1900 s, the cod fishery was
More informationAssessment of Atlantic mackerel in subareas 3-4
Assessment of Atlantic mackerel in subareas 3-4 Thomas Doniol-Valcroze, Benoît Légaré, Linda Girard, Mélanie Boudreau, Elisabeth Van Beveren & Martin Castonguay Maurice-Lamontagne Institute, Mont-Joli,
More informationBank-Scale Migration Patterns in Northern Cod
NAFO Sci. Coun. Studies, 29: 51 60 Bank-Scale Migration Patterns in Northern Cod Christopher T. Taggart Oceanography Department, Dalhousie University Halifax, Nova Scotia, Canada B3H 4J1 Abstract Proper
More information2000 REVIEW OF THE ATLANTIC STATES MARINE FISHERIES COMMISSION FISHERY MANAGEMENT PLAN FOR BLUEFISH (Pomatomus saltatrix)
2000 REVIEW OF THE ATLANTIC STATES MARINE FISHERIES COMMISSION FISHERY MANAGEMENT PLAN FOR BLUEFISH (Pomatomus saltatrix) Prepared by: Robert Beal (ASMFC) Bluefish Plan Review Team Elliot Atstupenas (USFWS)
More informationSEA GRANT PROGRESS REPORT
SEA GRANT PROGRESS REPORT Project Title: The relationship between seasonal migrations of berried female lobster Homarus americanus, egg development and larval survival. Principal Investigator: Winsor H.
More informationWhy has the cod stock recovered in the North Sea?
Why has the cod stock recovered in the North Sea? Summary The expansion of European fisheries during the 1970s and 1980s resulted in high fishing pressure on stocks of cod, haddock, whiting and saithe
More informationChesapeake Bay Jurisdictions White Paper on Draft Addendum IV for the Striped Bass Fishery Management Plan
Chesapeake Bay Jurisdictions White Paper on Draft Addendum IV for the Striped Bass Fishery Management Plan Maryland Department of Natural Resources, District of Columbia s Fisheries and Wildlife Division,
More information2002 REVIEW OF THE ATLANTIC STATES MARINE FISHERIES COMMISSION FISHERY MANAGEMENT PLAN FOR BLUEFISH (Pomatomus saltatrix)
2002 REVIEW OF THE ATLANTIC STATES MARINE FISHERIES COMMISSION FISHERY MANAGEMENT PLAN FOR BLUEFISH (Pomatomus saltatrix) Prepared by: Michael Lewis (ASMFC) Bluefish Plan Review Team Elliot Atstupenas
More informationAnadromous Forage Fisheries in Blue Hill Bay: Rainbow Smelt (Recreational) Alewife and Blueback Herring (Commercial and Recreational)
Anadromous Forage Fisheries in Blue Hill Bay: Rainbow Smelt (Recreational) Alewife and Blueback Herring (Commercial and Recreational) Claire Enterline Maine Department of Marine Resources Ellsworth High
More informationAlbacore Tuna, South Pacific, Troll, Pole and Line
Albacore Tuna, South Pacific, Troll, Pole and Line Content last updated 8th Mar 2016 Stock: South Pacific Albacore Tuna, South Pacific, Troll, Pole and Line Management: Inter-American Tropical Tuna Commission
More informationWest Coast Rock Lobster. Description of sector. History of the fishery: Catch history
West Coast Rock Lobster Description of sector History of the fishery: The commercial harvesting of West Coast rock lobster commenced in the late 1800s, and peaked in the early 1950s, yielding an annual
More informationELECTRO-FISHING REPORT 2016 UPPER TWEED
ELECTRO-FISHING REPORT 2016 UPPER TWEED The electro-fishing programme carried out each summer by The Tweed Foundation is part of our management plan, which details the information that is required to manage
More informationEssential Fish Habitat Description Atlantic herring (Clupea harengus)
Description Atlantic herring (Clupea harengus) In its Report to Congress: Status of the Fisheries of the United States (September 1997), NMFS determined Atlantic herring is not currently overfished. This
More informationClimate and Fish Population Dynamics: A Case Study of Atlantic Croaker
Climate and Fish Population Dynamics: A Case Study of Atlantic Croaker Kenneth W. Able Marine Field Station Institute of Marine and Coastal Sciences Hare and Able (in press, Fisheries Oceanography) Climate
More informationASSESSMENT OF THE WEST COAST OF NEWFOUNDLAND (DIVISION 4R) HERRING STOCKS IN 2013
Canadian Science Advisory Secretariat Quebec Region Science Advisory Report 214/56 ASSESSMENT OF THE WEST COAST OF NEWFOUNDLAND (DIVISION 4R) HERRING STOCKS IN 213 Quebec 4Ra 4S 4R 4Rc 4Rb U.S.A. (Maine)
More informationEssential Fish Habitat Description White hake (Urophycis tenuis)
Description White hake (Urophycis tenuis) In its Report to Congress: Status of the Fisheries of the United States (September 1997), NMFS determined white hake is not currently overfished, but it is approaching
More informationAtlantic croaker, Micropogonias undulatus (Linnaeus, 1766)
Atlantic croaker, Micropogonias undulatus (Linnaeus, 1766) Although Atlantic croaker occur throughout much of Florida, they are seldom found south of Tampa Bay on the gulf coast or south of the Indian
More informationHarbor Porpoise Take Reduction Plan: New England
Harbor Porpoise Take Reduction Plan: New England Photo Ann-Louise Jensen / Fjord & Bælt Centre NOAA Fisheries Service U.S. Department of Commerce National Oceanic and Atmospheric Administration National
More information2010 ASSESSMENT OF 4VWX HERRING
Canadian Science Advisory Secretariat Science Advisory Report 21/38 21 ASSESSMENT OF 4VWX HERRING Context: Figure 1. 4VWX herring management area and stock component locations. In support of scientific
More informationSUMMARY OF ICES 2009 ADVICE FOR PELAGIC SPECIES incl Blue whiting, capelin, herring, Norway pout, sandeel and sprat
SUMMARY OF ICES ADVICE FOR PELAGIC SPECIES incl Blue whiting, capelin, herring, Norway pout, BLUE WHITING Blue whiting combined stock Sub-areas I-IX, XII and XIV Status of stock in October 543,043 Due
More informationGUIDE TO ESTIMATING TOTAL ALLOWABLE CATCH USING SIZE FREQUENCY IN CATCH, EFFORT DATA, AND MPAS
GUIDE TO ESTIMATING TOTAL ALLOWABLE CATCH USING SIZE FREQUENCY IN CATCH, EFFORT DATA, AND MPAS Contact Rod Fujita, Director, Research and Development Oceans Program, Environmental Defense Fund 123 Mission
More informationCOUNTRIES THAT CONTRAVENE SCIENTIFIC ADVICE BY HARVESTING MIXED-POPULATIONS OF NORTH AMERICAN SALMON
SCIENTIFIC ADVICE A Backgrounder from Atlantic Salmon Federation P. O. Box 5200, St. Andrews, NB E5B 3S8 P. O. Box 807, Calais, ME USA 04619 0807 Tel: (506) 529 4581 www.asf.ca State of North American
More informationHabitat use, site fidelity, and growth of juvenile black sea bass, Centropristis striata, in the Maryland Coastal Bays using mark-recapture
Habitat use, site fidelity, and growth of juvenile black sea bass, Centropristis striata, in the Maryland Coastal Bays using mark-recapture Rebecca Peters and Paulinus Chigbu University of Maryland Eastern
More informationHorseshoe Crab (Limulus polyphemus) Movements in the Delaware Inland Bays. Andrew McGowan Environmental Scientist
Horseshoe Crab (Limulus polyphemus) Movements in the Delaware Inland Bays Andrew McGowan Environmental Scientist Life Cycle of Horseshoe Crabs? 1-3 4 5 6? 1. Fertilized Eggs Deposited 2. Larvae hatch after
More informationInformation Paper for SAN (CI-4) Identifying the Spatial Stock Structure of Tropical Pacific Tuna Stocks
Current knowledge, key uncertainties and future research directions for defining the stock structure of skipjack, yellowfin, bigeye and South Pacific albacore tunas in the Pacific Ocean Information Paper
More informationAtlantic cod, Gadus morhua Background
Atlantic cod, Gadus morhua Background The Atlantic cod is an arctic to temperate marine species of the eastern and western North Atlantic. On the western side it ranges from 69º10 N (http://www.iobis.org)
More informationCurrent Status and Future. Hudson River American shad stock. New York State Dept. of Environmental Conservation
Current Status and Future of the Hudson River American shad stock K. Hattala and A. Kahnle New York State Dept. of Environmental Conservation September 2009 Life history Young-of-year and dimmature fish
More informationNearshore Ecology of Atlantic Salmon in the Gulf of Maine Region. Workshop 2: Bays and the Gulf of Maine
Nearshore Ecology of Atlantic Salmon in the Gulf of Maine Region Workshop 2: Bays and the Gulf of Maine Atlantic Salmon Life Cycle adults postsmolts 1SW or 2SW Jun 4 Jun 5 Jun 3 Nov HATCHERY Inputs eggs
More informationHatcheries: Role in Restoration and Enhancement of Salmon Populations
Hatcheries: Role in Restoration and Enhancement of Salmon Populations Hatcheries play a large role in the management, ecology, and evolution of Pacific salmon. Why were/are they built? What are the assumptions
More informationFisheries Organization
NOT TO BE CITED WITHOUT PRIOR REFERENCE TO THE AUTHOR(S) Northwest Atlantic Fisheries Organization Serial No. N432 NAFO SCR Doc. 81/IX/126 THIRD ANNUAL MEETING - SEPTEMBER 1981 Oceanographic and Atlantic
More informationWest Coast of Newfoundland Atlantic Herring (Division 4R)
DFO Science Stock Status Report B-1 5 59 5 57 QUEBEC LOWER NORTH SHORE 51 Meters Ra STRAIT OF BELLE NEW FEROLLE ST. JOHN'S BAY POINT RICHE West Coast of Newfoundland Atlantic Herring (Division R) 5 BEAUGE
More informationWhy were anchovy and sardine regime shifts synchronous across the Pacific?
. Title PICES/GLOBEC Symposium, T3-2672 Why were anchovy and sardine regime shifts synchronous across the Pacific? Akinori Takasuka 1, Yoshioki Oozeki 1, Hiroshi Kubota 1, Ichiro Aoki 2 1 National Research
More informationSerial No. N4108 NAFO SCR Doc. 99/49 SCIENTIFIC COUNCIL MEETING JUNE E. G. Dawe
NOT TO CITED WITHOUT PRIOR REFERENCE TO THE AUTHOR(S) Northwest Atlantic Fisheries Organization Serial No. N18 NAFO SCR Doc. 99/9 SCIENTIFIC COUNCIL MEETING JUNE 1999 Migration patterns of short-finned
More informationSouthern Gulf of St. Lawrence Sea Scallop
DFO Science Stock Status Report C3-16 (1998) 21 22 23 24 Southern Gulf of St. Lawrence Sea Scallop Background The sea scallop (Placopecten magellanicus), is a bivalve mollusc found only in the north-western
More informationEastern and South Shore Nova Scotia Lobster LFAs The Fishery. DFO Atlantic Fisheries Stock Status Report 96/117E.
Maritimes Region DFO Atlantic Fisheries Stock Status Report 96/117E Eastern and South Shore Nova Scotia Lobster LFAs 31-33 Background Lobsters first entering the fishery in LFAs 31, 32, and 33 are probably
More informationGrowth: Humans & Surf Clams
Growth: Humans & Surf Clams East Coast MARE Materials For the leader: Projector Whiteboard to project data graph onto White paper & markers For the activity: Copy of data table Copy of map Class graphing
More informationProceedings from. Exploring Fine-scale Ecology for Groundfish In the Gulf of Maine and Georges Bank
Proceedings from Exploring Fine-scale Ecology for Groundfish In the Gulf of Maine and Georges Bank April 2-3, 2009 York Harbor Inn York Harbor, Maine Compiled and edited by: Meredith Mendelson With contributions
More informationFactors influencing production
Fisheries Reading: Miller Ch. 15 Supplementary: Levinton, Ch. 18 Krkošek et al. Epizootics of wild fish induced by farm fish. Proceedings of the National Academy of Sciences (2006) vol. 103 (42) pp. 15506
More informationN. Tay Evans Marine Fisheries Biologist & Technical Review Coordinator
Massachusetts Division of Marine Fisheries Marine Fisheries Resource Recommendations: Time-of-Year Restrictions N. Tay Evans Marine Fisheries Biologist & Technical Review Coordinator Massachusetts Division
More informationEffects of climate change on fish spawning grounds and larvae drift. Frode Vikebø Risør
Effects of climate change on fish spawning grounds and larvae drift Frode Vikebø frovik@imr.no Risør 15.08.2012 Objectives What are the prerequisites for modelling drift, growth and survival of early stages
More information10.4 Advice May 2014
10.4 Advice May 2014 ECOREGION STOCK North Atlantic Atlantic salmon at West Greenland Advice for 2014 The previous advice provided by ICES (2012) indicated that there were no mixed-stock fishery catch
More informationAndrew A. Rosenberg University of New Hampshire, USA
by Andrew A. Rosenberg University of New Hampshire, USA Principles Recovery of overexploited stocks even after decades of overfishing is possible if fishing pressure and habitat impacts can be reduced
More informationLect 19 - Populations - Chapter 23. Different Levels of Ecological Organization. Populations
Lect 19 - - Chapter 23 Different Levels of Ecological Organization Individuals Assemblage Community Ecosystem - all individuals of a particular species in a given area - but need to recognize genetic structure
More informationNew England Fishery Management Council
FOR IMMEDIATE RELEASE May 16, 2018 PRESS CONTACT: Janice Plante (607) 592-4817, jplante@nefmc.org Scallop RSA Program: Council and Northeast Fisheries Science Center Announce 15 Awards Selected for 2018-2019
More informationATLANTIC STATES MARINE FISHERIES COMMISSION. Winter Flounder Abundance and Biomass Indices from State Fishery-Independent Surveys
ATLANTIC STATES MARINE FISHERIES COMMISSION Winter Flounder Abundance and Biomass Indices from State Fishery-Independent Surveys Technical Committee Report to the Winter Flounder Management Board February
More information2001 REVIEW OF THE ATLANTIC STATES MARINE FISHERIES COMMISSION FISHERY MANAGEMENT PLAN FOR WEAKFISH (Cynoscion regalis)
2001 REVIEW OF THE ATLANTIC STATES MARINE FISHERIES COMMISSION FISHERY MANAGEMENT PLAN FOR WEAKFISH (Cynoscion regalis) Plan Review Team Rick Cole, DE Louis Daniel, NC Charles Lesser, DE Rob O Reilly,
More informationWitch Flounder (Divs. 4RST)
Stock Status Report /5 4S 4R Witch Flounder (Divs. 4RST) Background 4T Pn 4Vn Ps Witch flounder are found in the deeper waters of the North Atlantic. In the Northwest Atlantic, witch range from the lower
More informationSouthern Gulf of St. Lawrence Herring Fishery
Social Research for Sustainable Fisheries GNSBFA December 2001 SRSF Fact Sheet 5 Southern Gulf of St. Lawrence Herring Fishery Gulf Nova Scotia Bonafide Fishermen s Association Inside this issue: History
More informationWarmer temperatures, molt timing and lobster seasons in the Canadian Maritimes
Warmer temperatures, molt timing and lobster seasons in the Canadian Maritimes John Tremblay 1, Jean Lavallee 2 and Ross Claytor 1 1 Population Ecology Division, Fisheries and Oceans, Bedford Institute
More informationTuna [211] 86587_p211_220.indd 86587_p211_220.indd /30/04 12/30/04 4:53:37 4:53:37 PM PM
Tuna [] highlights Ocean and Climate Changes The catches of Pacific bluefin tuna and North Pacific albacore tuna have fluctuated considerably from year to year, but no upward or downward trends are apparent
More informationPreliminary results of SEPODYM application to albacore. in the Pacific Ocean. Patrick Lehodey
SCTB15 Working Paper ALB-6 Preliminary results of SEPODYM application to albacore in the Pacific Ocean Patrick Lehodey Oceanic Fisheries Programme Secretariat of the Pacific Community Noumea, New Caledonia
More informationAtlantic States Marine Fisheries Commission
Atlantic States Marine Fisheries Commission Winter Flounder Technical Committee Report on the Southern New England/Mid-Atlantic Winter Flounder Stock and Recommendations for 015 Fishing Year October 17,
More information'rhird ANNUAL MEETING. Cod. HadJock. Redfish and American Plaice of Suba~eas 3 and 2 of the Northwest Atlantic Convention Area by We Templeman
INTERNATIONAL COMMISSION FOR THE NORTHWEST ATLANTIC FISHERIES Document No. 33 'rhird ANNUAL MEETING ~owledge ~f Divisions or Stocks of Cod. HadJock. Redfish and American Plaice of Suba~eas 3 and 2 of the
More information8.9 SWO-ATL ATLANTIC SWORDFISH
EXECUTIVE SUMMARY SWO-ATL 8.9 SWO-ATL ATLANTIC SWORDFISH The status of the North and swordfish stocks was assessed in 2017, by means of applying statistical modelling to the available data up to 2015.
More informationKirt Hughes Washington Department of Fish and Wildlife Region 6 - Fish Program Manager
Kirt Hughes Region 6 - Fish Program Manager Habitat Hatcheries Harvest Clean Water Act Shorelines Harvest Hydro Habitat Forest Practices Non-regulatory Programs Water Supply & Conservation Growth Management
More informationStatus and trend of four commercially important coastal cephalopods in China Seas: an overview with implications for climate change
S9: FIS/TCODE Topic Session Resilience, Transitions and Adaptation in Marine Ecosystems under a Changing Climate 2016 PICES Annual Meeting, San Diego, USA, Nov.9-10, 2016 Status and trend of four commercially
More informationA Combined Recruitment Index for Demersal Juvenile Cod in NAFO Divisions 3K and 3L
NAFO Sci. Coun. Studies, 29: 23 29 A Combined Recruitment Index for Demersal Juvenile Cod in NAFO Divisions 3K and 3L David C. Schneider Ocean Sciences Centre, Memorial University St. John's, Newfoundland,
More informationICES Advisory Approach
ICES Advisory Approach Pelagic AC 12 April 2018 Eskild Kirkegaard ICES ACOM Chair Rules for advice on fishing opportunities Agreed management strategies Available information and knowledge Basis of ICES
More information9.4.5 Advice September Widely distributed and migratory stocks Herring in the Northeast Atlantic (Norwegian spring-spawning herring)
9.4.5 Advice September 212 ECOREGION STOCK Widely distributed and migratory stocks Herring in the Northeast Atlantic (Norwegian spring-spawning herring) Advice for 213 ICES advises on the basis of the
More information3.4.3 Advice June Barents Sea and Norwegian Sea Cod in Subareas I and II (Norwegian coastal waters cod)
3.4.3 Advice June 2013 ECOREGION STOCK Barents Sea and Norwegian Sea Cod in Subareas I and II (Norwegian coastal waters cod) Advice for 2014 ICES advises on the basis of the Norwegian rebuilding plan,
More informationCOUNTRIES THAT CONTRAVENED SCIENTIFIC ADVICE BY HARVESTING MIXED POPULATIONS OF NORTH AMERICAN SALMON IN 2017
SCIENTIFIC ADVICE The International Council for the Exploration of the Sea (ICES) advises: There is no surplus of multi-sea-winter salmon for a fishery at West Greenland for 2018, 2019, and 2020. ICES
More informationAtlantic cod, Norwegian Coastal cod, Gillnet
Atlantic cod, Norwegian Coastal cod, Gillnet Content last updated 1st Aug 2017 Stock: Norwegian Coastal cod Management: Norway Atlantic cod, Norwegian Coastal cod, Gillnet Overview Atlantic cod, Gadus
More information2001 STATUS OF ATLANTIC MENHADEN STOCK AND FISHERY
2001 STATUS OF ATLANTIC MENHADEN STOCK AND FISHERY Report of the Atlantic Menhaden Technical Committee July 1, 2001 1. Executive Summary The Atlantic Menhaden Technical Committee met in Richmond, Virginia
More informationWitch Flounder (Divs. 4RST)
DFO Science Stock Status Report A-() Witch Flounder (Divs. ST) Background 4T 4S Pn 4Vn Ps Witch flounder are found in the deeper waters of the North Atlantic. In the Northwest Atlantic, witch range from
More informationRecent stock recovery and potential future developments in. Sebastes mentella in the Barents- and Norwegian Seas.
Recent stock recovery and potential future developments in the fishery, The rise management, of the assessment beaked and redfish population of Sebastes mentella in the Barents- and Norwegian Seas. Benjamin
More informationSEDAR 10 DW- 08. REVIEW OF TAGGING DATA FOR GAG GROUPER (Mycteroperca microlepis) FROM THE SOUTHEASTERN GULF OF MEXICO REGION
SEDAR 1 DW- 8 REVIEW OF TAGGING DATA FOR GAG GROUPER (Mycteroperca microlepis) FROM THE SOUTHEASTERN GULF OF MEXICO REGION 1985-25. THIS DOCUMENT SHOULD NOT BE CITED WITHOUT AUTHOR S PERMISSION. Mauricio
More informationReport of the Working Group on Widely Distributed
ICES WGWIDE REPORT 2017 ICES ADVISORY COMMITTEE ICES CM 2017/ACOM:23 Report of the Working Group on Widely Distributed Stocks (WGWIDE) 30 August -5 September 2017 ICES Headquarters, Copenhagen, Denmark
More informationFisheries Historic Status U.S. fishermen are granted the right to fish in public waters under the Public Trust Doctrine. Through the years, this right
US U.S. Fisheries i Law: An Introduction Fisheries Historic Status U.S. fishermen are granted the right to fish in public waters under the Public Trust Doctrine. Through the years, this right has been
More informationSummary of Research within Lamlash Bay No-Take Zone - Science report for COAST July
Summary of Research within Lamlash Bay No-Take Zone - Science report for COAST July 2013 - *Picture of a spider crab (Macropodia spp) inside a plumose anemone. Taken within Lamlash Bay No-Take Zone by
More informationFishing mortality in relation to highest yield. Fishing mortality in relation to agreed target
3.4 Stock summaries 3.4. Northeast Arctic cod State of the stock Spawning biomass in relation to precautionary limits Full reproductive capacity Fishing mortality in relation to precautionary limits/management
More informationAn ecological framework for fish habitat restoration in the Huron-Erie Corridor
An ecological framework for fish habitat restoration in the Huron-Erie Corridor Darryl W. Hondorp, Bruce A. Manny, David Bennion, & Edward F. Roseman March 16, 2011 Questions & scenarios How does the bathymetric
More informationPlaice (Pleuronectes platessa) in Division 7.e (western English Channel)
Celtic Seas and Greater North Sea ecoregions Published 30 June 2016 Version 2: 15 May 2017 5.3.51 Plaice (Pleuronectes platessa) in Division 7.e (western English Channel) ICES stock advice ICES advises
More informationRIVER HERRING PROGRAM
RIVER HERRING PROGRAM River Herring NORTHEAST REGION Assessing Sustainability of River Herring Runs Department of Marine Resources Award Amount... $400,483 Grantee Match... $415,340 Total Project... $815,823
More informationFish Conservation and Management
Fish Conservation and Management CONS 486 Applied life history: individual growth, population growth, competition, predation Ross Chapter 3 Applied life history Age and size at maturity Growth Competition
More informationRight Whale Distribution: Historical Perspectives and Recent Shifts
Right Whale Distribution: Historical Perspectives and Recent Shifts Hamilton, P.K 1 and Davis, G.E. 2,3 1 Anderson Cabot Center for Ocean Life, New England Aquarium, Central Wharf, Boston, MA 02110, USA
More informationTechnical Briefing. Northern Cod (NAFO Div. 2J3KL) Newfoundland & Labrador March 23, 2018
Technical Briefing Northern Cod (NAFO Div. 2J3KL) Newfoundland & Labrador March 23, 2018 Outline Purpose of this briefing Science advice & the precautionary approach Summary of stock status How we estimate
More informationAtlantic States Marine Fisheries Commission
Atlantic States Marine Fisheries Commission ADDENDUM XXVI TO THE SUMMER FLOUNDER, SCUP, BLACK SEA BASS FISHERY MANAGEMENT PLAN Summer Flounder Recreational Management in 2015 ASMFC Vision: Sustainably
More informationSouthern Gulf of St. Lawrence (4T) Herring
Fisheries Pêches and Oceans et Océans DFO Science Stock Status B3-1 (22) Southern Gulf of St. Lawrence (4T) Herring Background Herring are a pelagic species which form schools during feeding and spawning
More informationAtlantic salmon from North America
North America USA Saint Pierre and Miquelon Total Recreational Labrador resident Aboriginal Commercial ICES Advice on fishing opportunities, catch, and effort North American North Atlantic sal.21.nac Published
More informationyear review of EBS Crab EFH
The evaluation of adverse impacts from fishing on crab essential fish habitat NMFS and NPFMC staff discussion paper, March 2011 2010 5 year review of EBS Crab EFH EFH Final Rule requires that a review
More informationICES Advice on fishing opportunities, catch, and effort Celtic Seas and Greater North Sea ecoregions Published 30 June 2016
ICES Advice on fishing opportunities, catch, and effort Celtic Seas and Greater North Sea ecoregions Published 30 June 2016 5.3.57 Sea bass (Dicentrarchus labrax) in divisions 4.b c, 7.a, and 7.d h (central
More information