DOCSLIB.ORG

Thai Tonggol Fishery Improvement Project Archive Date: January 2016

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Thai Tonggol Fishery Improvement Project Archive Date: January 2016 Thai Tonggol Fishery Improvement Project Archive Date: January 2016 Against a background of reducing fishing opportunities and reform of the Thai fisheries management legislation, the Thai Tonggol FIP is temporarily suspended while a potential industry coalition considers assuming ownership of the project. ! Species: tonggol tuna (Thunnus tonggol) FIP Scope/Scale: This FIP focuses on the Thai tonggol/longtail tuna (Thunnus tonggol) caught by tuna purse seiners operating from the east and west coasts of Thailand in the Gulf of Thailand and Andaman Sea. It is part of a wider project that is seeking better management of this species in Asia and also covers labor issues in the fishing industry, with a focus on Thailand but with a broader interest. Location: FIP Participants: • Orkla Foods Sweden – project sponsor • Thai Union Manufacturing Co. • Valcorp Fine Foods – project sponsor • Sea Value • Tropical Canning • Thai Tuna Industry Association Other Partners/Stakeholders: Thailand Department of Fisheries South East Asia Fisheries Development Centre (SEAFDEC) Swedish Agency for Marine and Water Management Sustainability Information: Limited information is available on the status of tonggol stocks or on the number of stocks in either the Indian Ocean or the Western Pacific Ocean. The Neritic Tuna Working Group of the Indian Ocean Tuna Commission has produced a preliminary assessment of the situation in the Indian Ocean. This assessment assumes one stock. A preliminary DNA analysis of fish from some parts of the South China Sea (an activity of the FIP) suggests some weak separation of populations of fish between the north and south, and further work is underway. In June 2014, the Southeast Asian Fisheries Development Center (SEAFDEC), with support from the SEAFDEC-Sweden Project, has designed (and its member countries have endorsed) a Regional Plan of Action (RPOA) for neritic tuna (including tonggol) for the SE Asian countries, including the development of an ongoing stock assessment. It is not expected to be concluded before 2019. The main fishing method used by the Thai fleet targeting tonggol is the purse seine. Available data show that little bycatch is taken. Other fisheries, not targeting tonggol but operating in Thai waters, report catches of juvenile tonggol. Outside Thai waters, in Indonesia, gillnets are used, but their bycatch profile is unknown. Date Publicly Announced: March 2011 FIP Stage: 4, FIP is delivering improvement in policies or practices • The Thai Department of Fisheries (DoF) is completing a management plan for the Thai tonggol fishery, which will be public before May 2015. • The Thai Tuna Industry Association (TTIA) is implementing (during 2015) a VMS system on all the Thai vessels targeting tonggol tuna. • SEAFDEC has designed a RPOA for the improvement of the neritic tuna fisheries in the SE Asia region (the plan has been endorsed by all SEAFDEC member states). Current Improvement Recommendations: In 2012, the Indian Ocean Tuna Commission (IOTC) conducted a stock reduction analysis on longtail tuna and the biomass appears healthy. This preliminary assessment included catch and effort data and indicates that fishing mortality rates have exceeded the maximum sustainable yield (MSY) in recent years. The biomass of longtail appears to be above MSY levels. The current status of longtail is that they are not overfished but are subject to overfishing (IOTC 2013). Overall effort in the Indian Ocean is unknown, but a catch per unit effort series for Thailand’s small purse seine and gillnet fisheries is available. Although information on catches is available, it is generally thought to be underestimated; therefore, a precautionary approach is recommended. Thailand does have some management measures in place that pertain to longtail fisheries. However, there are severe issues with the current catch estimates used in the stock assessment. Fishing mortality levels seem currently to be too high. Information on bycatch is lacking in this fishery (even if it seems to be low in the purse seine fishery and is unknown at the regional level) and no bycatch mitigation measures are in place. Therefore, improvement recommendations include: Recommendations to Catchers and Regulators 1. Ensure Thailand complies with all Indian Ocean Tuna Commission (IOTC) conservation and management measures (CMMs), including measures aimed at both target and incidental market and non-market species, and all other obligations. Member countries must make information on monitoring and compliance with all IOTC obligations publicly available, including measures being taken to address non-compliance issues identified by the Compliance Committee. 2. Encourage continued work with the Southeast Asian Fisheries Development Center (SEAFDEC) in the development and implementation of the Regional Plan of Action on Sustainable Utilization of Neritic Tunas (RPOA-Neritic Tuna). Promote the adoption of a management plan aimed specifically at neritic tuna species in Thailand. In the interim, current management measures and precautionary ones should be strengthened. 3. Support the current SIDA/Orkla longtail tuna fishery improvement project in Thailand and similar recommendations (see table below). Recommendations to Retailers and Supply Chain 1. Ask the Indian Ocean Tuna Commission (IOTC) and the relevant member countries to adopt precautionary and ecosystem-based management measures, including formal reference points, harvest control rules, and increased observer coverage for the tonggol fisheries in their jurisdictional waters. 2. Require that your suppliers source only from fisheries and vessels that comply with all IOTC conservation and management measures (CMMs), and request that IOTC make information on compliance by members and cooperating non-members publicly available. An example of how this might be achieved is the adoption of a control document that ensures recording and reporting interactions, and prohibition on retaining thresher and oceanic whitetip sharks. 3. Source from vessels registered on the International Seafood Sustainability Foundation (ISSF) Proactive Vessel Register (PVR) and in full compliance with all measures relevant to their gear type as demonstrated by annual independent audit reports that are made publicly available. Background: As an inshore tuna, tonggol is a source of protein for many coastal communities in the Middle East and Asia. Annual reported catches have grown over the past 30 years from less than 20,000 tonnes to more than 250,000 tonnes. However, including unreported nearshore tonggol catches from small-scale fishers would likely raise the total catch amounts significantly. The global distribution of tonggol is as follows: Source: www.fishbase.us The status of tonggol stocks is unknown and while the species has many attributes that make it robust to fishing pressure, there is little doubt that catches cannot continue to grow indefinitely. Improving an understanding of the status of tonggol is timely, as there is growing interest in this species in some export markets. Fishing is an important source of income and food for many coastal peoples in Thailand, Indonesia, Malaysia, and the Philippines. In addition, many immigrants, mainly from Myanmar and Cambodia, rely on the Thai fishing and tuna canning industries as important sources of income for themselves as well as for their families living in their home countries. Reported landings grew from less than 20,000 tonnes per year prior to the 1980s to about 130,000 tonnes in the late 1990s and up to 159,000 tonnes in 2012. Reported catches from the Gulf of Thailand are much larger than those from the Andaman Sea. 1. Laem Ngop, Trat Province 12. Muang, Ranong Province 2. Thamai, Chanthaburi Province 13. Kuraburi, Phang-nga Province 3. Muang, Rayong Province 14. Takuapa, Phang-nga Province 4. Sattahip, Chonburi Province 15. Taimuang, Phang-nga Province 5. Sriracha, Chonburi P 16. Muang, Phuket Province 6. Pak Nam, Samutprakan P 17. Muang, Krabi Province 7. Muang, Samutsakhon Prov 18. Kantang, Trang Province 8. Cha-Um, Phetchaburi Provi 19. Palian, Trang Province 9. Pranburi, Prachuap Khiri Khan Province 20. La-nga, Satun Province 10. Muang, Songkhla Province 21. Muang, Satun Province 11. Muang, Pattani Province The beginning of the FIP The FIP arose out of discussions with Sweden-based seafood business Abba Seafood (currently Orkla), which has been buying tonggol from Thailand for more than 30 years. Abba expressed an interest in creating a project aimed at better understanding the tonggol resources upon which their business depends and, with the support of local stakeholders, encouraging those that have management responsibility to improve those areas requiring management intervention. A quick review of the issues surrounding tonggol revealed that catches have grown over the past few decades (159,000 tonnes by 2012), stock status information is non-existent, and demand has increased due to some suppliers looking for alternatives to yellowfin tuna. FIP Goal and Objectives: The FIP goal is to ensure the long-term sustainability of tonggol supplies to southern Thailand, as the fundamental basis for preventing poverty and providing the basis for future investments in wealth-generating activities. Objective: • To ensure that tonggol resources are understood and management is robust. • To identify and progress options for improving the livelihoods of those that fish for tonggol in the project area. Progress Update: 2008 – 2009 Background discussions began in 2008 and resulted
Load more

Recommended publications
  • Longtail Tuna (Thunnus Tonggol)
    I & I NSW WILD FISHERIES RESEARCH PROGRAM Longtail Tuna (Thunnus tonggol) EXPLOITATION STATUS UNDEFINED A coastal tuna species for which the recreational fishery is probably more significant than the commercial fishery. There are few useful data with which to establish status. SCIENTIFIC NAME STANDARD NAME COMMENT Previously, but incorrectly called northern Thunnus tonggol longtail tuna bluefin tuna. Thunnus tonggol Image © Bernard Yau Background The longtail tuna reaches maturity at lengths of around 60-70 cm, and spawning takes place The longtail tuna (Thunnus tonggol) inhabits during the summer months. The main diet of continental shelf and ocean waters in warm the longtail tuna consists of small pelagic and temperate and tropical regions of the Indo-west demersal fish, but also includes crustaceans and Pacific. It is a common species in Queensland cephalopods. waters but during the summer it can be found as far south as Twofold Bay in southern NSW. Because of their rapid acceleration, longtail Previously called ‘northern bluefin tuna’ in tuna are highly regarded as sports fish but Australia, the longtail tuna is a relatively small, their very dark flesh gives them a low market slender species that grows to a weight of acceptance. Since about 2000 the NSW 36 kg and length of 136 cm; it is more commercial catch has been less than 2 t per commonly 80-90 cm and 10-15 kg. In year, with most taken by the Ocean Trap and comparison, the true ‘northern bluefin’ (Thunnus Line Fishery and very small amounts reported orientalis) can exceed 500 kg in weight and by the Ocean Hauling and Estuary General reach almost 300 cm in length.
    [Show full text]
  • A Global Valuation of Tuna an Update February 2020 (Final)
    Netting Billions: a global valuation of tuna an update February 2020 (Final) ii Report Information This report has been prepared with the financial support of The Pew Charitable Trusts. The views expressed in this study are purely those of the authors. The content of this report may not be reproduced, or even part thereof, without explicit reference to the source. Citation: Macfadyen, G., Huntington, T., Defaux, V., Llewellin, P., and James, P., 2019. Netting Billions: a global valuation of tuna (an update). Report produced by Poseidon Aquatic Resources Management Ltd. Client: The Pew Charitable Trusts Version: Final Report ref: 1456-REG/R/02/A Date issued: 7 February 2020 Acknowledgements: Our thanks to the following consultants who assisted with data collection for this study: Richard Banks, Sachiko Tsuji, Charles Greenwald, Heiko Seilert, Gilles Hosch, Alicia Sanmamed, Anna Madriles, Gwendal le Fol, Tomasz Kulikowski, and Benoit Caillart. 7 February 2020 iii CONTENTS 1. BACKGROUND AND INTRODUCTION ................................................................... 1 2. STUDY METHODOLOGY ......................................................................................... 3 3. TUNA LANDINGS ..................................................................................................... 5 3.1 METHODOLOGICAL ISSUES ....................................................................................... 5 3.2 RESULTS ...............................................................................................................
    [Show full text]
  • (Family Scombridae) in the Philippine Waters
    The Philippine Journal of Fisheries 27(2): 23-29 July-December 2020 DOI: 10.31398/tpjf/27.2.2019-0010 SHORT COMMUNICATION Abundance, Distribution, and Diversity of Tuna Larvae (Family Scombridae) in the Philippine waters Laureana T. Nepomuceno1*, Rhoda S. Bacordo², Darlyn Grace Y. Camu¹, Rafael V. Ramiscal³ 1Bureau of Fisheries and Aquatic Resources-Vessel Operation Center, Diliman, Quezon City ²Bureau of Fisheries and Aquatic Resources Region XI-Panabo, Davao del Norte ³Bureau of Fisheries and Aquatic Resources-Capture Fisheries Division, Diliman, Quezon City ABSTRACT The Philippines is a significant producer of tunas globally but has experienced a decline in tuna production in recent years. Thus, efforts to explore and assess new fishing grounds were conducted by the Bureau of Fisheries and Aquatic Resources (BFAR) through M/V DA-BFAR. Assessment of the spawning and nursery grounds of tunas in the country’s EEZ was also undertaken to properly manage and conserve tuna stocks. The said assessment commenced in 2006 and is continuing up to the present. All the data from 2006- 2018 were compiled, including the data from collaborative studies with the University of the Philippines-Marine Science Institute and Southeast Asian Fisheries Development Center to create an overall profile of Scombridae’s abundance and distribution larvae in Philippine waters. The study results showed that family Scombridae is most abundant in the Philippine waters along Batanes-Polillo and areas off Eastern Luzon. Species diversity in Philippine waters was considerably high, with about six to eight dominant species. The most dominant species was Thunnus albacares, followed by Thunnus obesus, Auxis spp., Katsuwonus pelamis, unidentified Scombrid larvae, Rastrelliger spp., Thunnus alalunga, and Thunnus tonggol.
    [Show full text]
  • Effects of Net Depth Reduction to Bigeye Tuna (Thunnus Obesus) Catch
    Effects of Net Depth Reduction to Bigeye Tuna (Thunnus obesus) Catch Item Type article Authors Dela Cruz, William S.; Demo-os, Marlo B.; Tanangonan, Isidro C.; Ramiscal, Rafael V. DOI 10.31398/tpjf/26.2.2018-0008 Download date 29/09/2021 11:13:59 Link to Item http://hdl.handle.net/1834/41173 The Philippine Journal of Fisheries 26(2): 66-71 July - December 2019 DOI: 10.31398/tpjf/26.2.2018-0008 FULL PAPER Effects of net depth reduction to Bigeye tuna (Thunnus obesus) catch William S. Dela Cruz1*, Marlo B. Demo-os2, Isidro C. Tanangonan2 and Rafael V. Ramiscal3 1Vessel Operations Center 2National Marine Fisheries Development Center 3Capture Fisheries Division Bureau of Fisheries and Aquatic Resource (BFAR) PCA Bldg., Elliptical Road, Quezon City, Philippines ABSTRACT Analysis on the catch of Bigeye tuna (Thunnus obesus) from purse seine and ring nets of various net depths was conducted to assess the effect of reducing net depth as a compatible measure the Philippines has implemented and reducing the catch of Bigeye in its internal waters and the Exclusive Economic Zone (EEZ). The study was based on observer reports from ring net and purse seine fishing vessels operating in internal waters and EEZ as well as from group seine operations in the high seas pocket 1. Nets were classed by depth to determine and compare variations on the catch of Bigeye, catch rates and relative proportion, species composition, and fishing grounds. Results indicated that the catch of Bigeye is correlated with the depth of net, with a significantly higher catch of Bigeye in deeper nets.
    [Show full text]
  • Before the Secretary of Commerce Petition to List the Pacific Bluefin Tuna
    Credit: aes256 [CC BY 2.1 jp] via Wikimedia Commons Before the Secretary of Commerce Petition to List the Pacific Bluefin Tuna (Thunnus orientalis) as Endangered Under the Endangered Species Act June 20, 2016 6/20/2016 EXECUTIVE SUMMARY Petitioners formally request that the Secretary of Commerce, through the National Marine Fisheries Service (NMFS), list the Pacific bluefin tuna (Thunnus orientalis) as endangered or in the alternative list the species as threatened, under the federal Endangered Species Act (ESA), 16 U.S.C. §§ 1531 – 1544. Pacific bluefin tuna are severely overfished, and overfishing continues, making extinction a very real risk. According to the 2016 stock assessment by the International Scientific Committee for Tuna and Tuna-Like Species in the North Pacific Ocean (ISC), decades of overfishing have left the population at just 2.6% of its unfished size. Recent fishing rates (2011-2013) were up to three times higher than commonly used reference points for overfishing. The population’s severe decline, in combination with inadequate regulatory mechanisms to end overfishing or reverse the decline, has pushed Pacific bluefin tuna to the edge of extinction. Pacific bluefin tuna are important apex predators in the marine ecosystem and must be conserved. They are one of three bluefin tuna species. These three species are renowned for their large size, unique physiology and biomechanics, and capacity to swim across ocean basins. They are slow-growing, long-lived, endothermic fish. The Pacific bluefin migrates tens of thousands of miles across the largest ocean to feed and spawn, ranging from waters north of Japan to New Zealand in the western Pacific and off California and Mexico in the eastern Pacific.
    [Show full text]
  • 8.2 the Significance of Ocean Deoxygenation for Open Ocean Tunas and Billfishes Shirley Leung,K
    8.2 The significance of ocean deoxygenation for open ocean tunas and billfishes Shirley Leung,K. A. S. Mislan, Barbara Muhling and Richard Brill 8.2 The significance of ocean deoxygenation for open ocean tunas and billfishes Shirley Leung1,*, K. A. S. Mislan1,2, Barbara Muhling3,4 and Richard Brill5 1 School of Oceanography, University of Washington, USA. Email : [email protected] 2 eScience Institute, University of Washington, USA 3 University of California Santa Cruz, Santa Cruz, CA, USA 4 National Oceanic and Atmospheric Administration, National Marine Fisheries Service, Southwest Fisheries Science Center, La Jolla, CA, USA 5 Virginia Institute of Marine Science, Gloucester Point, VA, USA Summary • Tunas and billfishes should be especially sensitive to low ambient oxygen conditions given their high metabolic rates as well as the large differences between their resting and maximum metabolic rates. Although there are many behavioural similarities among the different species, there are also clear and demonstrable differences in growth rates, maximum adult size, physiological abilities, low-oxygen tolerances, and preferred environmental conditions. • Climate change is projected to alter oxygen concentrations throughout the open ocean, with most regions undergoing decreases due to a slowdown in ocean ventilation and a decline in surface oxygen solubility. Between 200 and 700 m depth (a vertical range including depths to which tunas and billfishes commonly descend to forage), the greatest and most certain decreases in oxygen concentrations are projected to occur in the North Pacific and much of the Southern Ocean, while the smallest and least certain changes are projected to occur within the tropical Pacific Ocean.
    [Show full text]
  • Download Publication
    STANDARD OPERATING PROCEDURE for Data Collection and Analysis of the Neritic Tunas Prepared by Marine Fishery Resources Development and Management Department (MFRDMD) Funded by: SEAFDEC-Sweden Project SOUTHEAST ASIAN FISHERIES DEVELOPMENT CENTER SOUTHEAST ASIAN FISHERIES DEVELOPMENT CENTER MARINE FISHERIES RESOURCES DEVELOPMENT AND MANAGEMENT DEPARTMENT (MFRDMD) Fisheries Garden Chendering 21080 Kuala Terengganu, Malaysia TEL: +609 617 5940, +609 617 1543, +609 617 7867 FAX: +609 617 5136, +609 617 4042 EMAIL: [email protected] WEBSITE: www.seafdec.org.my TABLE OF CONTENTS 1. INTRODUCTION ............................................................................................................... 1 2. OBJECTIVES ..................................................................................................................... 1 3. ENVISAGED OUTCOMES ............................................................................................... 1 4. STANDARDIZED ITEMS FOR DATA COLLECTION ............................................... 2 4.1 Study area ....................................................................................................................... 2 4.2 Countries involved in the project ................................................................................... 2 4.3 Sampling location .......................................................................................................... 2 4.4 Species to be studied for stock assessment ...................................................................
    [Show full text]
  • Fisheries Research Stock Assessment and Efficacy of Size Limits On
    Fisheries Research 102 (2010) 248–257 Contents lists available at ScienceDirect Fisheries Research journal homepage: www.elsevier.com/locate/fishres Stock assessment and efficacy of size limits on longtail tuna (Thunnus tonggol) caught in Australian waters S.P. Griffiths ∗ CSIRO Marine and Atmospheric Research, PO Box 120, Cleveland, Queensland 4163, Australia article info abstract Article history: A stock assessment of longtail tuna (Thunnus tonggol) in Australian waters was undertaken using Received 1 July 2009 per-recruit analyses to assess: (i) the current stock status, and (ii) the effect of Minimum Legal Lengths Received in revised form (MLL) as a management tool. Exploited age compositions differed between the commercial (age 10 December 2009 classes 3–4 years) and sport fishery (4–6 years). The fishing mortality (F ) from these fisheries for Accepted 10 December 2009 current 2004–2006 was estimated as 0.167–0.320 year−1. Yield-per-recruit analyses revealed that size limits and improving post-release survival had no significant effect on the population. This was due to fish Keywords: becoming vulnerable to both fisheries at age 2–3 years, after fish presumably had the opportunity to Recreational fishing Sport fishing spawn. Under all MLL scenarios, the current fishing mortality rate did not exceed biological reference Scombridae points. However, any significant increase in fishing mortality may result in recruitment overfishing due Yield-per-recruit to longtail tuna being slow-growing and the stock currently in the vicinity of the F40% reference point. Spawning stock biomass-per-recruit Since longtail tuna are now a “recreational-only” species in Australia with minimal commercial bycatch, Management investigation of daily catch limits for the sport fishery requires exploration using more sophisticated Thunnus tonggol age-structured stock assessment models.
    [Show full text]
  • Yellowfin Tuna
    A Guide to the Tunas (and Tuna-like Species) Found in Indonesian Waters Dogtooth tuna Skipjack tuna Big-eye tuna Albacore tuna Yellowfin tuna Longtail tuna ANOVA Seafood Sustainability: Fishing and Living Program How to Measure and Identify Tuna Characteristic and important features of tuna which will aid in the identification process • Body markings • Body shape • Head and eye shape • Pectoral fin characteristics • Caudal fin characteristics • Finlet coloration Several internal features can also be used to aid the identification including the liver and swim bladder but these will not be discussed here. Body parts named and measurement description • Straight fork length is the measurement of length from the tip of the snout to the to the middle of the caudal fin rays. • Curved fork length a measurement of the length of a tuna taken in a line tracing The contour of the body from the tip of the upper jaw to the fork of the tail, which abuts the upper side of the pectoral fin and the upper side of the caudal keel. Gymnosarda unicolor / Dogtooth tuna Classification / Names Actinopterygii > Perciformes > Scombridae > Scombrinae > Gymnosarda unicolor Size / Weight / Age Max length : 248 cm; common length : 190 cm; max. published weight: 131.0 kg Environment Marine; reef-associated; oceanodromous; depth range 10 - 100 m Brief description • Dorsal spines (total): 13 - 15; Dorsal soft rays (total): 12-14; Anal spines: 0; Anal soft rays: 12 - 13; Vertebrae: 38. • Mouth fairly large, upper jaw reaching to middle of eye. • Lateral line strongly curved. • Swim bladder large, spleen visible in ventral view on the right side of the body.
    [Show full text]
  • Synopsis of Biological Data on Frigate Tuna, Auxis Thazard and Butllet
    436 NOAA Technical Report NMFS Circular 436 Synopsis of Biological Data on Frigate Tuna, Auxis thazard, and Bullet Tuna, A. rochei January 1981 FAO Fisheries Synopsis No. 124 NMFS/S 124 SAST - Auxis roche!: 1,75(01)023,03 Auxis thazard: 1,75(01)023,01 U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Marine Fisheries Service NOAA TECHNICAL REPORTS National Marine Fisheries service, Circulars The major responsibilities of the National Marine Fisheries Service (NMFS( are to monitor and assess the abundance and geographic distribution of fishery resources, to understand and predict fluctuations in the quantity and distribution of these resources, and to establish levels for optimum use of the resources. NMFS is also charged with the development and implementation of policies for managing national fishing grounds, development and enforcement of domestic fisheries regulations.,sur'eillance of foreign fishing off United States coastal waters, and the development and enforcement of international fishery agreements and policies. NMFS also assists the fishing industry through marketing service and economic analysis programs. and mortgage insurance and vessel construction subsidies. lt collects, analyzes, and publishes statistics on various phases of the industry. The NOAA Technical Report NMFS Circular series continues a series that has been in existence since 1941. The Circulare are technical publications of general interest intended to aid conservation and management. Publications that review in considerable detail and at a high technical level certain broad areas of research appear in this series. Technical papers originating in economics studies and from management in- vestigations appear in the Circular series. NOAA Technical Report NMFS Circulars are available free in limited numbers to governmental agencies, both Federal and State.
    [Show full text]
  • Impacts of Climate Change and Ocean Acidification on Indian Ocean Tunas
    Impacts of climate change and ocean acidification on Indian Ocean tunas Sibylle Dueri June 2017 1 Context of the report This report was elaborated in the context of the project “Diagnosis of the tuna industry in the Indian Ocean”, co-funded by the Institute for Sustainable Development and International Relations (IDDRI) and the French government in the framework of the programme “Investissements d’avenir”, managed by ANR (the French National Research Agency) under the reference ANR-10-LABX-01. For more information: [email protected] ; [email protected] 2 Table of contents List of acronyms ................................................................................................................ 4 List of figures .................................................................................................................... 5 Executive summary ........................................................................................................... 6 1. Introduction .................................................................................................................. 8 2. Indian Ocean response to climate change ...................................................................... 9 2.1 Oceanography and biogeochemistry of the Indian Ocean ............................................................ 9 2.2 Impacts of climate change........................................................................................................... 12 3. Impact of climate change on Indian Ocean tunas ........................................................
    [Show full text]
  • Identification of Tuna and Tuna-Like Species in Indian Ocean Fisheries
    IDENTIFICATION OF TUNA AND TUNA-LIKE SPECIES IN INDIAN OCEAN FISHERIES Indian Ocean Tuna Commission Commission des Thons de l’Océan Indien These identification cards are produced by the Indian Ocean Tuna Commission (IOTC) to help improve catch data and statistics on tuna and tuna-like species, as well as on other species caught by fisheries in the Indian Ocean. The most likely users of the cards are fisheries observers, samplers, fishing masters and crew on board fishing vessels targeting tuna and tuna-like species in the Indian Ocean. Fisheries training institutions and fishing communities are other potential users. Layout: Julien Million. Scientific advice: Julien Million and David Wilson We gratefully acknowledge D. Itano, Dr C. Anderson and Dr E. Romanov (CAPRUN-ARDA) for the development of this publication. Illustrations © R. Swainstonanima.net.au. Photographs courtesy of J. Million (cover), D. Itano (p. 7&8) and M. Potier (p. 23) © FAO, 2019 Common English name FAO How to use these cards? Scientific name Each card contains J —Japanese name C —simplified Chinese / traditional Chinese names - the scientific name of the species F —French name as well as its common names in S —Spanish name English, French, Spanish, Japanese, traditional and simplified Chinese, Eye – Fork length (EF) - its FAO code First dorsal Second fin Caudal fin dorsal fin - an illustration of the species with Eye some distinctive features Finlet - its maximum fork length (Max. FL) - its common fork length in the Indian Ocean (Com. FL) Caudal keel Mouth Terminology Anal fin - Caudal keel: fleshy ridge; usually Pectoral fin Pelvic fin relates to a skin fold on the precaudal peduncle.
    [Show full text]