Stock Assessment of Western Visayan Sea
|
|
- Dustin Woods
- 6 years ago
- Views:
Transcription
1 Stock Assessment of Western Visayan Sea Mesa, Sheryll V. 1 ; Drusila Esther E. Bayate 2 ; May R. Guanco 1 1 Bureau of Fisheries and Aquatic Resources- National Stock Assessment Program, Regional Field Office 6, Iloilo City 2 Bureau of Fisheries and Aquatic Resources- Central Office, Diliman Quezon City Paper presented during the Training on Effective Technical Report Writing & Proper Oral Presentation of the NSAP, Eurotel, Baguio City, 16May 2014
2 Outline Introduction Materials & Methods Results & Discussion - crab gear inventory - estimated harvest & CPUE - species composition - monthly seasonality - MSY - reproductive biology - population parameters Conclusion Recommendation
3 I. Introduction I. 1. Stock Profile Order: Decapoda (ten appendages) Infraorder: Brachyura (true crab) Family: Portunidae (swimming crab) blue swimming crab, flower crab, manna crab or sand crab kasag, alimasag, lambay or masag.
4 Philippine Blue Crab Major Fishing Grounds 1. Lingayen Gulf 2. Tayabas Bay 3. Ragay Gulf 4. San Miguel Bay 5. Sorsogon Bay 6. Samar Sea 7. Carigara Bay 8. Visayan Sea 9. Guimaras Strait 10. Taytay Bay 11. Malampaya Sound 12. Honda Bay 13. Panguil Bay 14. Tawi-tawi (Ingles, 1996)
5 I. 2. Crab Fishing Gears Crab Pot/Panggal Push net/ Hud-hud Otter trawl Crab Trap/ Bubo Pangasag Bottomset gillnet/ Palugdang
6 Quantity (MT) Million of Pesos Production Trend (Ingles, 2004) 7,500 6,000 4,500 3,000 Export Trend (BAS Data) Volume of Export (MT) Value (Million of Pesos) 3,000 2,500 2,000 1,500 1,000 1, Year
7 I. 3. Framework for BSC Stock Conservation National
8 Local Policies Negros Occidental: - Provincial Ordinance No. 019: An ordinance regulating the catching, selling, possessing or buying of gravid blue crabs and crablets in the Province of Negros Occidental - September 2003 Iloilo: - Provincial Ordinance No Catch size limit at 11cm; 50mesh size depth - February 22, 2012
9 I.5. Objectives: This study aims to provide scientific information on the biology of Portunus pelagicus caught in Western Visayan Sea. Informations will serve as baseline in the implementation of the JAO as: fishing gear inventory harvest estimate and catch per unit of effort species relative abundance and monthly seasonality maximum sustainable yield reproductive biology population parameters
10 II. Materials & Methods: Map of Visayan Sea showing the 10 monitoring stations of the Blue Swimming Crab Project
11 Five point scale of female gonadal maturity used for P. pelagicus (Sumpton et.al., 1994) Premature FI Stage/Immature FII Stage/Developing FIII Stage/Ripening FIV Stage/Spawning FV Stage/Spent
12 Data Analysis: Total Inventory of crab gears Estimated Harvest : CPUE x Fishing days x Inventory CPUE (computed in kg/d and kg/panel) MSY Schaeffer & Fox Model FiSAT ver population parameters
13 Reproductive Biology: Sex Ratio (SR) = no. of male / no. of female GSI = GW/BW x 100 Sex P = 1 Ratio = F n /n 1 + exp (S 1 +S 2 x L) W = al b P = proportion of mature individuals within a length class S1 = intercept S2 = slope L = mid-length
14 III. Results & Discussion: Annual cpue, fishing days, and gear count of major crab fishing gears operating in Western Visayan Sea CY 2011 Bottomset gillnet Crab pot Crab trap Modified danish seine (municipal) Fish coral Filter net Fish trap Manual push net Otter trawl Surface-set gillnet cpue (kg/d) Fishing days Vessel count by inventory Harvest (MT) TOTAL
15 Annual cpue, fishing days, and gear count of major crab fishing gears operating in Western Visayan Sea CY 2012 Bottomset gillnet Crab pot Crab trap Fish coral Fish trap Manual push net Otter trawl Surface-set gillnet cpue (kg/d) Fishing days Vessel count by inventory Harvest (MT) TOTAL 1,303.61
16 CPUE (kg/panel) CPUE (kg/d) CPUE (kg/d) CPUE (kg/panel)
17 Ave. No. of Panels per Station CPUE (kg/panel) per Station Negros Occidental
18 Portunus pelagicus Encrasicholina heteroloba Rastrelliger kanagurta Rastrelliger brachysoma Leiognathus splendens Acetes sp. Atule mate Sardinella fimbriata Gerres erythrourus Pelates quadrilineatus Aetobatus narinari Charybdis feriata Sardinella gibbosa Nemipterus virgatus Scolopsis taenioptera Sardinella sp. Pricanthus tayenus Photololigo edulis Encrasicholina devisi Escualosa thoracata % Abundance Dominant species of all fishing gears in the crabbing areas of Western Visayan Sea CY
19 Relative abundance of crab species identified per major crab fishing gears in the Visayan Sea Gear % 10 Dominant Species Bottomset gillnet Crab pot Crab trap Manual push net Otter trawl % Crab Species % P. pelagicus
20 Catch (MT) Recruitment (%) GSI (%) S E A S O N A L I T Y J F M A M J J A S O N D J F M A M J J A S O N D J F M A M J J A S O N D
21 Yield (MT) Fox ,000 20,000 30,000 40,000 Effort (gillnet panels) Data Fox Model MSY - 1,365MT f MSY 19,473 MSY and f MSY for the crab fishery of Western Visayas at different period using the Fox Models
22 Ratio Species N Premature (PM) Female (F) Male (M) Ratio PM: F: M P. pelagicus 3, ,595 1,669 1:7:7 2.0 F M J F M A M J J A S O N D Observed sex ratio and monthly male and female distribution of P. pelagicus caught in Western Visayan Sea
23 GSI (%) Frequency 100% 80% 60% 40% 20% 0% J F M A M J J A S O N D V IV III II I PM J F M A M J J A S O N D Monthly female gonadal frequency and GSI distribution of P. pelagicus caught in Western Visayan Sea
24 Author/Year Ragay Gulf (Inlgles & Braum, 1989) Visayan Sea (Ingles, 1996) Danajon Bank (Armada, 2009) Visayan Sea (This study) Lm (cm) Computed length at first maturity (Lm) for P. pelagicus caught in Western Visayan Sea
25 Lm = 11.5cm Observed length frequency distribution of P. pelagicus caught in Western Visayan Sea by bottomset gillnet (BSGN), crab pot (CP), and otter trawl (OT)
26 Comparative growth parameter values for P. pelagicus in various fishing grounds of the Philippines Author/Year Area L k Ingles & Braum, 1989 Germano et.al., 2006 Olaño et.al., 2009 Bayate et.al., 2011 Ingles, J., 1996 Romero, F., 2009 Mesa et.al., 2012 (this study) Ragay Gulf, Philippines Eastern Visayas, Philippines Sorsogon Bay, Philippines F M Guimaras Strait, Philippines Visayan Sea, Philippines Visayan Sea, Philippines Visayan Sea, Philippines
27 Leyte Gulf,2006 San Pedro Bay,2006 Biliran Strait,2006 Ormoc Bay,2006 Camotes Sea,2006 Visayan Sea,2009 Guimaras Strait,2011 Visayan Sea,2012 E values (year-1) E E10 Threshold 0.5 Exploitation rate (E) values from mortalities and optimum exploitation rate (E 10 ) from Beverton & Holt yield per recruit analysis in comparison to the threshold value of P. pelagicus from various biological studies conducted
28 IV. Conclusion: P. pelagicus stocks in Western Visayan Sea is experiencing overfishing based on the following results: - decreasing CPUE (kg/panel) - MSY with decreasing yield and increasing f MSY number of panels per boat - Growth overfishing with decreasing L and higher E values than E 10 - Recruitment overfishing with high percentage of catch size prior to Lm of major crab gears
29 V. Recommendations: banning of otter trawl operation in the municipal waters (FAO 201) JAO Effort reduction for bottomset gillnet or crab entangling net thru systematic licensing system reduction of number of gillnet-panels or reduction of fishing vessels operating
30 JAO Regulation of crab pots: use of bamboo made materials limit the number of pots used per operation and increase the trap entrance diameter Catching size limit to 11.5cm carapace width (CW). Ban of catching berried crabs Possible closed season in the months of August to September or January to February.
31
THE FISHERIES RESOURCE STATUS OF VISAYAN SEA
THE FISHERIES RESOURCE STATUS OF VISAYAN SEA Sheryll V. Mesa NATIONAL STOCK ASSRSSMENT PROGRAM Bureau of Fisheries and Aquatic Resources Regional Field Office 6 Iloilo City Stakeholders Meeting. Iloilo
More informationDanajon Bank, Philippines: an EBM case study
Danajon Bank, Philippines: an EBM case study Outline: Danajon Bank FISH Project objectives and strategies Fisheries management initiatives Fisheries monitoring Other measurable project results Future EBM
More informationThe case of Seasonal Closure for Sardine Fishery in the Visayan Sea, Philippines
The case of Seasonal Closure for Sardine Fishery in the Visayan Sea, Philippines Ruby P. Napata, Liberty N. Espectato and Genna D. Serofia Institute of Fisheries Policy and Development Studies College
More informationCurrent Status of Crab Fishery in the Artisanal Sector along Gulf of Mannar and Palk bay Coasts
Current Status of Crab Fishery in the Artisanal Sector along Gulf of Mannar and Palk bay Coasts M. Rajamani* and A. Palanichamy Mandapam Regional Centre of CMFRI Marine Fisheries P.o., Mandapam Camp -
More informationHakes Assessment SARC 51. Whiting NEFMC PDT Meeting February 14, 2011 Milford, MA
Hakes Assessment SARC 51 Whiting NEFMC PDT Meeting February 14, 2011 Milford, MA Revisions and Updates to Assessment Summary Document Silver hake Revised assessment document Silver hake assessment summary
More informationStock Assessment Form of Saurida undosquamis (Demersal sp.) in GSA 26.
Stock Assessment Form of Saurida undosquamis (Demersal sp.) in GSA 26. Reference years: 2011-2012-2013 Reporting year: 2014 The assessment of Saurida undosquamis in 2011 and 2012 were discussed and endorsed
More informationDauphin Lake Fishery. Status of Walleye Stocks and Conservation Measures
Dauphin Lake Fishery Status of Walleye Stocks and Conservation Measures Date: December, 21 Dauphin Lake Fishery Status of Walleye Stocks and Conservation Measures Background: Walleye stocks in Dauphin
More informationAMBLYGASTER SIRM (WALBAUM) OFF THE NEGOMBO COAST
-Y J Natn. Sci. Coun. Sri Lanka 1995 23(1): 1-7 /-!~h,,!,/lic,' ) - 1 J : STUDIES ON THE EXPLOITATION OF TRENCHED SARDINE AMBLYGASTER SIRM (WALBAUM) OFF THE NEGOMBO COAST W.P.N KARUNASINGHE1 and M. J.S.
More informationSWG-11-JM-10. F Limit Reference Points about Preventing Recruitment Overfishing and its Uncertainty
11th Meeting of the Science Working Group Lima, Peru, 1-19 October 01 F Limit Reference Points about Preventing Recruitment Overfishing and its Uncertainty One of the purposes of reference points (RPs)
More informationGulf of St. Lawrence (4RST) Greenland Halibut
Fisheries and Oceans Science Pêches et Océans Sciences DFO Science Stock Status Report A4-3 () 52 5 48 46 Québec Nouveau-Brunswick Québec 4T 4S 4R 3Pn 4Vn Terre-Neuve 3Ps 3K 3L Gulf of St. Lawrence (4RST)
More informationPaper prepared by the Secretariat
COMMISSION FOURTEENTH REGULAR SESSION Manila, Philippines 3 7 December 2017 REFERENCE DOCUMENT FOR REVIEW OF CMM 2005-03 AND FOR THE DEVELOPMENT OF HARVEST STRATEGIES UNDER CMM 2014-06 North Pacific Albacore
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 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 informationNorth Carolina. Striped Mullet FMP. Update
North Carolina Striped Mullet FMP Update Presentation for the Marine Fisheries Commission January 24, 2008 COMMERCIAL HARVEST 4,000,000 2,000,000 3,500,000 3,000,000 Landings (lb) Value ($) 1,800,000
More informationNorway lobster (Nephrops norvegicus) in Division 4.a, Functional Unit 7 (northern North Sea, Fladen Ground)
ICES Advice on fishing opportunities, catch, and effort Greater North Sea Ecoregion Published 11 November 2016 6.3.27 (update) Norway lobster (Nephrops norvegicus) in Division 4.a, Functional Unit 7 (northern
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 informationFishery, biology and stock assessment of Cynoglossus macrostomus (Norman) off Malabar coast
Indian J. Fish., 53(4) : 441-447, Oct.-Dec., 2006 441 Fishery, biology and stock assessment of Cynoglossus macrostomus (Norman) off Malabar coast P.P. MANOJKUMAR Calicut Research Centre of Central Marine
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 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 informationFisheries Improvement Project Indonesian Blue Swimming Crab - gillnet/trap
Fisheries Improvement Project Indonesian Blue Swimming Crab - gillnet/trap Indonesian Blue Swimming Crab Association Under review in fisheryprogress.org FIP Description APRI and all members (16 group companies,
More informationSTATUS OF EXPLOITED MARINE FISHERY RESOURCES OF INDIA
STATUS OF EXPLOITED MARINE FISHERY RESOURCES OF INDIA Editors M. Mohan Joseph and A.A. Jayaprakash CENTRAL MARINE FISHERIES RESEARCH INSTITUTE (Indian Council of Agricultural Research) Post Box No. 1603,
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 informationIOTC 2015 SC18 ES06[E]
DRAFT EXECUTIVE SUMMARY: BULLET TUNA Status of the Indian Ocean bullet tuna (BLT: Auxis rochei) resource TABLE 1. Bullet tuna: Status of bullet tuna (Auxis rochei) in the Indian Ocean. Area 1 Indicators
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 informationSpurdog (Squalus acanthias) in the Northeast Atlantic
ICES Advice on fishing opportunities, catch, and effort Northeast Atlantic Published 11 October 2016 9.3.17 Spurdog (Squalus acanthias) in the Northeast Atlantic ICES stock advice ICES advises that when
More informationISC Pacific Bluefin tuna Stock Assessment 2016
ISC Pacific Bluefin tuna Stock Assessment 2016 Completed in 2016-Feb. 29 th to 2016-Apr. 12 th at La Jolla, USA ISC Pacific Bluefin tuna Working Group 2016/5/10 San Diego Marriott La Jolla -IATTC SAC 07-
More informationAdvice June 2014
5.3.23 Advice June 2014 ECOREGION STOCK Celtic Sea and West of Scotland Plaice in Division VIIa (Irish Sea) Advice for 2015 Based on ICES approach to data-limited stocks, ICES advises that catches should
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 informationManagement advisory for the Bay of Bengal Indian mackerel fishery
Management advisory for the Bay of Bengal Indian mackerel fishery What is the BOBLME RFMAC The BOBLME Project is supporting countries to implement an ecosystem approach to fisheries management of shared
More informationNorway lobster (Nephrops norvegicus) in Division 4.b, Functional Unit 6 (central North Sea, Farn Deeps)
ICES Advice on fishing opportunities, catch, and effort Greater North Sea Ecoregion Published 14 November 2017 DOI: 10.17895/ices.pub.3524 Norway lobster (Nephrops norvegicus) in Division 4.b, Functional
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 informationSome Biological Parameters of Bigeye and Yellowfin Tunas Distributed in Surrounding Waters of Taiwan
SCTB15 Working Paper RG-1 Some Biological Parameters of Bigeye and Yellowfin Tunas Distributed in Surrounding Waters of Taiwan Shyh-Bin Wang 1, Feng-Chen Chang 1, Shui-Hei Wang 1, and Chin-Lau Kuo 2 1
More informationStriped red mullet (Mullus surmuletus) in Subarea 4 and divisions 7.d and 3.a (North Sea, eastern English Channel, Skagerrak and Kattegat)
ICES Advice on fishing opportunities, catch, and effort Greater North Sea Ecoregion Published 30 June 2017 DOI: 10.17895/ices.pub.3162 Striped red mullet (Mullus surmuletus) in Subarea 4 and divisions
More informationASSESSMENT OF HERRING IN THE SOUTHERN GULF OF ST. LAWRENCE (NAFO DIV. 4T)
Canadian Science Advisory Secretariat Science Advisory Report 27/5 ASSESSMENT OF HERRING IN THE SOUTHERN GULF OF ST. LAWRENCE (NAFO DIV. 4T) Context The stock area for southern Gulf of St. Lawrence herring
More informationCOMMISSION DELEGATED REGULATION (EU)
L 336/42 COMMISSION DELEGATED REGULATION (EU) 2015/2440 of 22 October 2015 establishing a discard plan for certain demersal fisheries in the North Sea and in Union waters of ICES Division IIa THE EUROPEAN
More informationThe Changes Observed in Atlantic Bonito (Sarda sarda) Populations During the Autumn-Winter Migration in the Suthern Black Sea Coast
The Changes Observed in Atlantic Bonito (Sarda sarda) Populations During the Autumn-Winter Migration in the Suthern Black Sea Coast Click to add title Mustafa ZENGİN Central Fisheries Research Institute,
More informationCatch per unit effort of coastal prawn trammel net fishery in Izmir Bay, Aegean Sea
Research Article Mediterranean Marine Science Volume 10/1, 2009, 19-23 Catch per unit effort of coastal prawn trammel net fishery in Izmir Bay, Aegean Sea O. AKYOL and T. CEYHAN Faculty of Fisheries, Ege
More informationASSESSMENT OF THE COMMERCIAL FISHERIES OF WESTERN AND CENTRAL VISAYAN SEA
ASSESSMENT OF THE COMMERCIAL FISHERIES OF WESTERN AND CENTRAL VISAYAN SEA MAY R. GUANCO SHERYLL V. MESA National Stock Assessment Project Bureau of Fisheries and Aquatic Resources Regional Field Office
More information92 ND MEETING DOCUMENT IATTC-92 INF-C
INTER-AMERICAN TROPICAL TUNA COMMISSION 92 ND MEETING Mexico City, Mexico 24-28 July 2017 DOCUMENT IATTC-92 INF-C POTENTIAL EFFECTS ON TUNA STOCKS OF ALTERNATIVE MANAGEMENT SCHEMES At the request of a
More informationAlberta Conservation Association 2011/12 Project Summary Report. Project Name: Walleye Stock Assessment Program 2011/12 Moose and Fawcett Lakes
Alberta Conservation Association 2011/12 Project Summary Report Project Name: Walleye Stock Assessment Program 2011/12 Moose and Fawcett Lakes Fisheries Program Manager: Peter Aku Project Leader: Clayton
More informationASMFC Stock Assessment Overview: Black Drum
Introduction This document presents a summary of the 215 benchmark stock assessment for black drum. The assessment was peerreviewed by an independent panel of scientific experts through the ASMFC integrated
More information2012 Maryland FMP Report (July 2013) Section 15. Red Drum (Sciaenops ocellatus)
1981 1983 1985 1987 1989 1991 1995 1997 1999 2001 2003 2005 2007 2009 2011 Pounds 2012 Maryland FMP Report (July 2013) Section 15. Red Drum (Sciaenops ocellatus) Chesapeake Bay FMP In 2012, red drum were
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 informationThe effects of v-notching on reproductive potential in American lobsters (Homarus americanus) in Newfoundland
The effects of v-notching on reproductive potential in American lobsters (Homarus americanus) in Newfoundland Kathryn Goetting adapted from The reproductive potential of v-notched American lobsters (Homarus
More information2018 Blue Crab Advisory Report Preview
2018 Blue Crab Advisory Report Preview Jay Fleming Glenn Davis (MDDNR) Chair, Chesapeake Bay Stock Assessment Committee June 21, 2018 Sustainable Fisheries GIT Meeting 1 Results of 2017/18 Winter Dredge
More informationIntroduction to population dynamics and stock assessments
South East Fisheries Science Center Introduction to population dynamics and stock assessments Adyan Rios MREP USVI Tuesday, May 23, 2017 Introduction to population dynamics and stock assessments Part 1
More informationWhy Bass is a political fish
Why Bass is a political fish IFM Conference Plymouth 2015 Martin Salter and David Mitchell Angling Trust Bass hits the Headlines in landmark year EU takes emergency action A 20 year campaign With Heroes
More informationWhat you need to know about juvenile tunas in the Philippines:
What you need to know about juvenile tunas in the Philippines: N. Barut National Fisheries Research & Development Institute, BFAR J. Ingles WWF, Coral Triangle Program Stakeholders Consultation Workshop
More informationIOTC 2013 WPNT03 18 ABSTRACT
Neritic tuna fishery along the Indian coast and biology and population characteristics of longtail and frigate tuna E.M. Abdussamad, K.P. Said Koya, Prathibha Rohith and Somy Kuriakaose Central Marine
More informationAdvice October 2013
5.4.21.3 Advice October 213 ECOREGION Celtic Sea and West of Scotland STOCK Nephrops on Porcupine Bank (FU 16) Advice for 214 ICES advises on the basis of the MSY approach that catches from FU 16 in 214
More informationNorway lobster (Nephrops norvegicus) in Division 3.a, functional units 3 and 4 (Skagerrak and Kattegat)
ICES Advice on fishing opportunities, catch, and effort Greater North Sea Ecoregion Published 29 June 2018 https://doi.org/10.17895/ices.pub.4433 Norway lobster (Nephrops norvegicus) in Division 3.a, functional
More information"Recommended Improvements for the Next Pacific Salmon Treaty"
"Recommended Improvements for the Next Pacific Salmon Treaty" Randall M. Peterman School of Resource and Environmental Management Simon Fraser University Burnaby, British Columbia, Canada Web site: http://www.rem.sfu.ca/fishgrp/
More informationR.P. Prabath K. JAYASINGHE National Aquatic Resources Research and Development Agency (NARA) Colombo 15 SRI LANKA
Experience and the special requirements of Sri Lanka in addressing the impacts of bottom fisheries on vulnerable marine ecosystems and the long-term sustainability of deep-sea fish stocks in particular
More informationPolicy Instruments for Fisheries Management and the Concept of Fisheries Refugia
REVERSING ENVIRONMENTAL DEGRADATION TRENDS Policy Instruments for Fisheries Management and the Concept of Fisheries Refugia Christopher Paterson, UNEP/GEF South China Sea Project REVERSING ENVIRONMENTAL
More informationEU request to ICES on in-year advice on haddock (Melanogrammus aeglefinus) in Division 7.a (Irish Sea)
ICES Special Request Advice Celtic Seas Ecoregion Published 1 March 2017 EU request to ICES on in-year advice on haddock (Melanogrammus aeglefinus) in Division 7.a (Irish Sea) Advice summary Please note:
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 informationExecutive Summary Gantahaz Lake 2006
Executive Summary Gantahaz Lake 2006 A stocking assessment was conducted at Gantahaz Lake on September 29, 2006. This was the third assessment completed since the inception of stocking in 1976. The management
More informationPacific Blue Marlin Stock Assessment Update in ISC Billfish Working Group
Pacific Blue Marlin Stock Assessment Update in 2016 ISC Billfish Working Group Overview Overview of the 2013 Pacific Blue Marlin Stock Assessment 2016 Assessment Data and Model Blue Marlin Life History
More informationImplications of reducing Norway lobster (Nephrops norvegicus) minimum size (MLS/MCRS) in the Skagerrak and Kattegat area (IIIa).
Institutionen för akvatiska resurser 2015-04-01 Havsfiskelaboratoriet Daniel Valentinsson, Joakim Hjelm and Katja Ringdahl Implications of reducing Norway lobster (Nephrops norvegicus) minimum size (MLS/MCRS)
More informationNorway lobster (Nephrops norvegicus) in Division 4.b, Functional Unit 6 (central North Sea, Farn Deeps)
ICES Advice on fishing opportunities, catch, and effort Greater North Sea Ecoregion Published 14 November 2018 https://doi.org/10.17895/ices.pub.4619 Norway lobster (Nephrops norvegicus) in Division 4.b,
More informationSTOCK ASSESSMENT OF ALBACORE TUNA IN THE NORTH PACIFIC OCEAN IN 2011
STOCK ASSESSMENT OF ALBACORE TUNA IN THE NORTH PACIFIC OCEAN IN 2011 Report of the ISC-Albacore Working Group Stock Assessment Workshop 3rd Science Advisory Committee Meeting Inter-American Tropical Tuna
More informationWestern Cape Breton Snow Crab (Area 19) Background
Gulf Region Canadian Science Advisory Secretariat Science Advisory Report 25/23 Western Cape Breton Snow Crab (Area 19) Background Snow crab (Chionoecetes opilio) is a crustacean like lobster and shrimp,
More informationASSESSMENT OF SHRIMP STOCKS IN THE ESTUARY AND GULF OF ST. LAWRENCE IN 2011
Canadian Science Advisory Secretariat Science Advisory Report 212/6 ASSESSMENT OF SHRIMP STOCKS IN THE ESTUARY AND GULF OF ST. LAWRENCE IN 211 Figure 1. Shrimp fishing areas in the Estuary and Gulf of
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 informationStock Assessment Form of Metapenaeus stebbingi (Demersal sp.) in GSA 26.
Stock Assessment Form of Metapenaeus stebbingi (Demersal sp.) in GSA 26. Reference years: 2012-2013-2014-2015 Reporting year: 2016 Seven species (Metapenaeus monoceros, Metapenaeus stebbingi, Penaeus semisulcatus,
More informationExecutive Summary Opatcho Lake 2004
Executive Summary Opatcho Lake 2004 Stocking assessments were conducted at Opatcho Lake on two separate occasions: May 20, 2004, and September 27, 2004. Opatcho Lake is a 40.5 ha lake situated 48 km southeast
More informationSurvey of New Jersey s Recreational Blue Crab Fishery in Delaware Bay
Survey of New Jersey s Recreational Blue Crab Fishery in Delaware Bay By Brandon W. Muffley* New Jersey Division of Fish & Wildlife Marine Fisheries Administration & Lynette Lurig New Jersey Division of
More informationREC.CM-GFCM/40/2016/4
REC.CM-GFCM/40/2016/4 establishing a multiannual management plan for the fisheries exploiting European hake and deep-water rose shrimp in the Strait of Sicily (GSA 12 to 16) The General Fisheries Commission
More informationAdvice June Sole in Division IIIa and Subdivisions (Skagerrak, Kattegat, and the Belts)
6.3.26 Advice June 2014 ECOREGION STOCK North Sea Sole in Division IIIa and Subdivisions 22 24 (Skagerrak, Kattegat, and the Belts) Advice for 2015 ICES advises on the basis of the MSY approach that catches
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 information6 th Meeting of the Scientific Committee Puerto Varas, Chile, 9-14 September SC6-Doc21 Chinese Taipei s Annual Report
6 th Meeting of the Scientific Committee Puerto Varas, Chile, 9-14 September 2018 SC6-Doc21 Chinese Taipei s Annual Report 2018 National Report of Chinese Taipei to SPRFMO Scientific Committee on the Squid
More informationA. 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 informationCertification Determination. Louisiana Blue Crab Commercial Fishery
15 th November 2016 Certification Determination For The Louisiana Blue Crab Commercial Fishery Following a meeting of a Global Trust Certification Committee on 20 th October 2016, a positive determination
More informationTrawl Fishery Management Myanmar
APFIC Regional Expert Workshop on Topical Trawl Fishery Management 30 September 4 October 2013, Phuket, Thailand Trawl Fishery Management Myanmar Khin Maung Aye & Win Ko Ko Myanmar Marine Fishery a. In-shore
More informationFishery and population characteristics of Indian mackerel, Rastrelliger kanagurta (Cuvier) at Kakinada
Indian J. Fish., 53(1) : 77-83, Jan.-Mar., 2006 77 Fishery and population characteristics of Indian mackerel, Rastrelliger kanagurta (Cuvier) at Kakinada E.M. ABDUSSAMAD, H. MOHAMED KASIM AND P. ACHAYYA
More informationSOUTH PACIFIC COMMISSION. TWENTY-SECOND REGIONAL TECHNICAL MEETING ON FISHERIES (Noumea, New Caledonia, 6-10 August 1990)
Page 1 ORIGINAL : ENGLISH SOUTH PACIFIC COMMISSION TWENTY-SECOND REGIONAL TECHNICAL MEETING ON FISHERIES (Noumea, New Caledonia, 6-10 August 1990) STOCK STATUS OF SKIPJACK TUNA IN THE WESTERN TROPICAL
More informationAssessment Summary Report Gulf of Mexico Red Snapper SEDAR 7
Assessment Summary Report Gulf of Mexico Red Snapper SEDAR 7 Stock Distribution: Red snapper are found throughout the Gulf of Mexico, the Caribbean Sea, and from the U.S. Atlantic Coast to northern South
More informationPARTIES TO THE PALAU ARRANGEMENT. 21 st ANNUAL MEETING 31 March 1 April 2016 Tarawa, Kiribati. PA21/WP.2: Purse Seine VDS TAE for
PARTIES TO THE PALAU ARRANGEMENT 21 st ANNUAL MEETING 31 March 1 April 2016 Tarawa, Kiribati : Purse Seine VDS TAE for 2017-18 TAE Setting 1. Article 12.2 of the VDS Scheme text sets out the issues to
More informationAdvice October 2014
5.3.20 Advice October 2014 ECOREGION STOCK Celtic Sea and West of Scotland Nephrops in Division VIa Introduction Nephrops are limited to a muddy habitat. This means that the distribution of suitable sediment
More informationBuilding a science for landscape fisheries management
Building a science for landscape fisheries management Nigel Lester Aquatic Research and Monitoring Section Science and Research Branch Ministry of Natural Resources nigel.lester@ontario.ca American Fisheries
More informationAdvice June 2013 Version 2,
5..37 Advice June 3 Version, 5--3 ECOREGION STOCK Celtic Sea and West of Scotland Sole in Divisions VIIf,g (Celtic Sea) Advice for ICES advises on the basis of the MSY approach that catches in should be
More informationPRELIMINARY STUDY FOR STOCK STATUS OF KAWAKAWA USING DATA-LIMITED APPROACH (Euthynnus affinis Cantor, 1849) IN INDONESIA
PRELIMINARY STUDY FOR STOCK STATUS OF KAWAKAWA USING DATA-LIMITED APPROACH (Euthynnus affinis Cantor, 1849) IN INDONESIA Irwan Jatmiko 1*, Fathur Rochman 1 and Zulkarnaen Fahmi 1 1 Research Institute for
More informationPHILIPPINE FISHERIES OBSERVER PROGRAMME
Republic of the Philippines Department of Agriculture BUREAU OF FISHERIES AND AQUATIC RESOURCES PHILIPPINE FISHERIES OBSERVER PROGRAMME Dr. Alma C. Dickson Head, NMFDC Philippine National Fisheries Observer
More informationRequests exemption from LCS closure provision of FMP. Would not have to close LCS fishery.
Working towards healthy, self-sustaining sustaining populations for all Atlantic coast fish species or successful restoration ti well in progress by 2015 Review of Massachusetts De Minimis Proposal May,
More informationAdvice October 2012
9.4.20 Advice October 2012 ECOREGION STOCK Widely distributed and migratory stocks Portuguese dogfish (Centroscymnus coelolepis) in the Northeast Atlantic Advice for 2013 and 2014 ICES advises on the basis
More informationPACIFIC BLUEFIN TUNA STOCK ASSESSMENT
PACIFIC BLUEFIN TUNA STOCK ASSESSMENT SUMMARY 19-21 December 2012 Webinar PACIFIC BLUEFIN TUNA STOCK ASSESSMENT SUMMARY 1. Stock Identification and Distribution Pacific bluefin tuna (Thunnus orientalis)
More informationManagement advisory for the Bay of Bengal hilsa fishery June 2012
Page1 Management advisory for the Bay of Bengal hilsa fishery June 2012 What is the BOBLME RFMAC The BOBLME Project is supporting countries to implement an ecosystem approach to fisheries management of
More informationAtlantic Striped Bass Draft Addendum V. Atlantic Striped Bass Board May 9, 2017
Atlantic Striped Bass Draft Addendum V Atlantic Striped Bass Board May 9, 2017 Timeline May 2017: Consider Approval of Draft Addendum V for Public Comment May July 2017: Public Comment period August 2017:
More informationField Protocol for Monitoring Coral Reef Fisheries Resources in Belize
Field Protocol for Monitoring Coral Reef Fisheries Resources in Belize Charles A. Acosta, PhD Wildlife Conservation Society Glover s Reef Marine Research Station P.O. Box 272 Dangriga, Belize and Department
More information2017 North Pacific Albacore Stock Assessment
2017 North Pacific Albacore Stock Assessment 13 th Regular Session of the Northern Committee August 28-September 1, 2017 Busan, Republic of Korea ISC-Albacore Working Group 2017 North Pacific Albacore
More informationUsing Population Models to Evaluate Management Alternatives for Gulf-strain Striped Bass
Using Population Models to Evaluate Management Alternatives for Gulf-strain Striped Bass Alex Aspinwall Alabama Cooperative Fisheries and Wildlife Research Unit Elise Irwin U.S Geological Survey Introduction
More informationFISHERIES MANAGEMENT ACT 1998
FISHERIES MANAGEMENT ACT 1998 THE GULF OF PAPUA PRAWN FISHERY MANAGEMENT PLAN THE NATIONAL FISHERIES AUTHORITY, by virtue of the powers conferred by Section 28 of the Fisheries Management Act 1998, and
More informationSILVER WAREHOU (SWA) (Seriolella punctata)
703 SILVER WAREHOU (SWA) (Seriolella punctata) 1. FISHERY SUMMARY (a) Commercial fisheries Silver warehou are common around the South Island and on the Chatham Rise in depths of 200 800 m. The majority
More informationFishery, biology and population characteristics of the Indian mackerel, Rastrelliger kanagurta (Cuvier) exploited along the Tuticorin coast
Indian J. Fish., 57(1) : 17-21, 2010 17 Fishery, biology and population characteristics of the Indian mackerel, Rastrelliger kanagurta (Cuvier) exploited along the Tuticorin coast E. M. ABDUSSAMAD, N.
More informationDuring the mid-to-late 1980s
The 2001 Yellow Perch Report by Rick Kubb During the mid-to-late 1980s the yellow perch popula tions in Lake Erie were among the highest on record. Limit catches by fishermen were extremely common during
More informationAdvice June 2012
5.4.29 Advice June 2012 ECOREGION STOCK Celtic Sea and West of Scotland + North Sea Anglerfish (Lophius piscatorius and L. budegassa) in Division IIIa, and Subareas IV and VI Advice for 2013 Based on the
More informationSheepshead Fishery Overview South Atlantic State/Federal Management Board May 2014 Introduction Life History Landings
Sheepshead Fishery Overview South Atlantic State/Federal Management Board May 2014 Introduction The Atlantic States Marine Fisheries Commission (ASMFC) does not currently manage sheepshead (Archosargus
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 informationIs Lagonoy Gulf a special breeding ground for Yellowfin Tuna?
Is Lagonoy Gulf a special breeding ground for Yellowfin Tuna? A presentation by Dr. Heiko Seilert Overall Project Manager PPTST 10 September 2013, General Santos Why This Question I 1. In interviews conducted
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