Posts

Showing posts with the label Yellowfin Tuna

The importance of management strategy evaluation and management procedures in Tuna Management.

Image
   Tuna fisheries play a crucial role in global seafood production, providing food security, employment and economic value to many coastal nations. However, growing concerns related to unsustainable fishing, climate change, ecosystem impacts and mismanagement necessitate robust management approaches. Management strategy evaluation (MSE) and precautionary management procedures have emerged as a key tool for ensuring sustainable tuna stocks while balancing economic and ecological objectives. MSE tested management procedures for tunas have recently become an improved management tool in rebuilding tuna stocks and ensuring their long-term sustainability. MSE is a simulation-based framework that allows fisheries managers and stakeholders to test and evaluate the performance of different management options against pre-agreed management objectives before implementation. This process accounts for uncertainties in stock assessments, biological and environmental variability, as well as m...

The global tuna catch has remained stable at around 5 million tonnes in recent years.

Image
  Globally, the seven major commercial oceanic tuna species are assessed and managed as 23 distinct stocks by the five tuna Regional Fisheries Management Organizations (RFMOs): CCSBT, IATTC, ICCAT, IOTC and WCPFC. These stocks include six albacore, four bigeye, four bluefin, five skipjack, and four yellowfin tuna stocks. The global tuna catch has remained stable at around 5 million tonnes in recent years. In 2023, the total catch was approximately 5.2 million tonnes, a figure similar to the previous year. Skipjack tuna accounted for the largest share (57 percent), followed by yellowfin tuna (31 percent), bigeye tuna (7 percent), albacore tuna (4 percent), and the three bluefin tuna species collectively contributing just 1 percent of the total catch. From a stock perspective, based on the most recent stock status adopted by tuna RFMOs, 16 out of the 23 assessed tuna stocks are not overfished, and overfishing is not occurring. Additionally, five sto...

The Catch of Tropical Tunafish in the Ocean Atlantic (OA).

Image
  About 11 percent of the world’s tuna production comes from Atlantic Ocean (AO) stocks –FAO Major Fishing Areas 21, 27, 31, 34, 41 and 47. Catches of skipjack tuna, yellowfin tuna, bigeye tuna, albacore tuna and bluefin tuna in 2023 totaled 544 700 tonnes, a 9 percent decrease from 2022 levels. The total catch has generally declined since the mid-1990s, followed by an upward trend since 2009 (FIGURE E.1.13). The catch of tropical tunas (bigeye tuna, yellowfin tuna and skipjack) in the AO initially steadily increased by approximately 100 000 tonnes per decade, reaching 100 000 tonnes in 1963, 200 000 tonnes in 1971, and 300 000 tonnes in 1980. It then quickly rose to 0.4 million tonnes by 1982, before reaching 500 000 tonnes in 1994. Total catches declined to 300 000 tonnes in 2006 but then began increasing again, reaching a historical high of 520 000 tonnes in 2018. Since then, catches h...