Tuna face extinction within 50 years as rising popularity of sushi is blamed on declini... - 0 views
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Jérôme OLLIER on 06 Dec 11Tuna face extinction within 50 years as rising popularity of sushi is blamed on declining numbers.
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Major Tuna Vessel Is Denied Port Landing Because of Evidence of Illegal Fishing - Pew E... - 0 views
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Major Tuna Vessel Is Denied Port Landing Because of Evidence of Illegal Fishing.
Greenpeace activists target destructive fishing in Indian Ocean - in pictures - @guardi... - 0 views
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Greenpeace activists target destructive fishing in Indian Ocean - in pictures.
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Greenpeace activists target destructive fishing in Indian Ocean - in pictures.
UK supermarkets back call to cut yellowfin tuna catches by 20% - @guardianeco - 0 views
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Tesco, Sainsbury's, Asda, M&S, Morrisons and Co-op join major seafood brands and WWF in campaign to stop Indian Ocean fish stocks collapsing
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Tesco, Sainsbury's, Asda, M&S, Morrisons and Co-op join major seafood brands and WWF in campaign to stop Indian Ocean fish stocks collapsing
Via @Seasaver - Blast fishing turning Tanzania's waters into 'killing fields' - @ITV - 0 views
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Read Blast fishing turning Tanzania's waters into 'killing fields' latest on ITV News.
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Read Blast fishing turning Tanzania's waters into 'killing fields' latest on ITV News.
Navy detains seven suspected pirates in Seychelles - AFP - 0 views
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Navy detains seven suspected pirates in Seychelles.
Training centre for fishermen to open in Maldives - worldfishing & aquaculture - 0 views
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Training centre for fishermen to open in Maldives.
EU fishing ban takes its toll on Sri Lanka - @SeafoodSource - 0 views
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Sri Lanka is surveying the financial burn that comes with being blacklisted by the European Union - according to a spokeswoman, the island nation has taken a revenue hit of USD 75 million (EUR 68 million) since January, when the EU placed a ban on fish caught by Sri Lankan vessels.
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Sri Lanka is surveying the financial burn that comes with being blacklisted by the European Union - according to a spokeswoman, the island nation has taken a revenue hit of USD 75 million (EUR 68 million) since January, when the EU placed a ban on fish caught by Sri Lankan vessels.
Canneries nervous with tuna prices rising worldwide - @undercur - 0 views
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Canneries nervous with tuna prices rising worldwide.
Indian Ocean Tuna Commission adopts measures - @SeyNewsAgency via @FISinfo - 0 views
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Indian Ocean Tuna Commission adopts measures.
Eggs from endangered sea turtle stolen from Thai beach - @AP via @CourthouseNews - 0 views
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Eggs from endangered sea turtle stolen from Thai beach.
A Shipwreck's Incalculable Toll on a Remote Reef - @hakaimpagazine - 0 views
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After a fishing boat ran aground on a fragile atoll, the consequences for the ecosystem were alarming-and curious.
UK brands act to cut catch of 'near-threatened' yellowfin tuna - @karenmcveigh1 @guard... - 0 views
Via @stableseas - Ping shin killings: Taiwan arrests WANG Feng Yu in shootings in Inter... - 0 views
These Maldives islanders once saw sharks as the threat. Now they fear the plastic - @gr... - 0 views
Managing a multi-species fishery in distant waters: the case of the Spanish-flagged pur... - 0 views
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According to the latest report on the state of World Food and Agriculture Organization fisheries and aquaculture (SOFIA, 2022), skipjack (Katsuwonus pelamis) and yellowfin tuna (Thunnus albacares) are among the five most caught finfish species of the world, with 2,827 and 1,569 thousand tons in 2020, respectively. The tropical purse seiners deploy large nets around tuna schools in the tropical waters of the world. This method targets three main tuna species, skipjack, yellowfin and bigeye (Thunnus obesus) tunas, which are mainly used for canning or frozen markets. This important fishery provides employment opportunities for many people in developing countries. Landings for the European long-distance fishery targeting tuna and tuna-like fishes from Indian Ocean, amounted to 303,638 tons valued at EUR 423.7 million (Prellezo et al., 2022), where the Spanish fleet of purse seiners targeting tropical tuna is the most important. The Spanish tropical purse seine fleet fishing in the Indian Ocean accounts for 26% of the skipjack and yellowfin tunas caught from Indian Ocean, which represent approximately 3% of worldwide catch for both species.
Via @WhySharksMatter - Approaches for estimating natural mortality in tuna stock assess... - 0 views
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The values used for natural mortality (M) are very influential in stock assessment models, affecting model outcomes and management advice. Natural mortality is one of the most difficult demographic parameters to estimate, and there is often limited information about the true levels. Here, we summarise the evidence used to estimate natural mortality at age for the four main stocks of yellowfin tuna (Indian, Western and Central Pacific, Eastern Pacific, and Atlantic Oceans), including catch curves, tagging experiments, and maximum observed age. We identify important issues for estimating M such as variation with age linked to size, maturity state or senescence, and highlight information gaps. We describe the history of natural mortality values used in stock assessments by the tuna Regional Fisheries Management Organisations responsible for managing each stock and assess the evidence supporting these values. In June 2021, an online meeting was held by the Center for the Advancement of Population Assessment Methodology (CAPAM), to provide advice and guidance on practices for modelling natural mortality in fishery assessments. Based on approaches presented and discussed at the meeting, we develop a range of yellowfin tuna natural mortality estimates for each stock. We also recommend future research to improve these estimates of natural mortality.