Author /Editor: Haritz Arrizabalaga, Hilario Murua and Jacek Majkowski
Year: 2012
Content: Tuna stocks are harvested by many countries in all oceans and managed by Regional Fishery Management Organizations (RFMOs). The FAO Fisheries & Aquaculture Department periodically reviews the state of world marine fishery resources, which includes a summary chapter for tunas and tuna like species. This world summary requires a review and synthesis of assessment reports, as well as additional preparatory work which is not then documented elsewhere. Thus, the objective of the present publication is to present the information used and summarized by FAO. It essentially includes a review of worldwide tuna catch, fisheries and stock status for the most commercially important 23 tuna populations, which was done between late 2010 and early 2011. The review not only focuses on the stock status, but also on its evolution over time. On one hand, time trends on the stock status (as perceived in the stock assessments available by early 2011) are summarized, focussing on three reference periods. In addition to this, and when enough stock assessment information is available for the historic period, the early 2011 perception of stock status is compared with the stock status as perceived in stock assessments conducted in the past, allowing a retrospective analysis
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