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Stock Assessment and Modelling
Thursday, 23 September 2010 11:26

The Stock Assessment and Modelling section within the Oceanic Fisheries Programme (OFP) undertakes a wide range of activities that meet Objective 1 of OFP's Strategic Plan, namely:

“To provide high-quality scientific information and advice for regional and national fisheries management authorities on the status of, and fishery impacts on, stocks targeted or otherwise impacted by regional oceanic fisheries”

Within the section, we have five areas of work which relate to the four result areas under the strategic plan.

 

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Tuna Fisheries Assessment Report No. 16
Friday, 02 December 2016 08:31

brouwer_16_western_tuna_2015_overviewTuna fisheries assessment reports provide most recent information on the tuna fisheries of the western and central Pacific Ocean and the fish stocks (mainly tuna) that are impacted by them. The information provided a summary, but a list of references (mostly accessible via the Internet) is included for those seeking further details.

This report focuses on the main tuna stocks targeted by the fisheries - skipjack tuna (Katsuwonus pelamis), yellowfin tuna (Thunnus albacares), bigeye tuna (T. obesus) and South Pacific albacore tuna (T. alalunga).

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Identifying FAD-fishing
Tuesday, 25 August 2015 08:54

stevenh2015_08_25-sp_brailleTuna purse-seine catches associated with Fish Aggregation Devices (FADs) are typically more diverse than catches set on “free school” tuna, including both smaller target tuna as well a variety of bycatch species that are often discarded.  In response, an annual FAD-fishing moratorium, of several months’ duration and Pacific-wide, has been implemented since 2009.  Despite the moratorium, there remains concern about adherence to FAD-free fishing requirements.  Additionally, seafood producers and consumers seek certification regarding the source of purse seine captured tuna.

Given this background, we became interested in developing a FAD-association verification test.  We have developed a simple technique, based on observer catch sampling, to determine whether a purse seine set is likely to have been associated with a FAD.  Our methodology, which can be easily implemented “in the field”, has a prediction accuracy rate of up to 86%.  Details of the methodology have been published, in Open Access format, in the journal Fisheries Research.

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Tuna Fisheries Assessment Report No. 15
Tuesday, 01 December 2015 09:39

brouwer_15_western_tuna_2014_overviewTuna fisheries assessment reports provide current information on the tuna fisheries of the western and central Pacific Ocean and the fish stocks (mainly tuna) that are impacted by them. The information provided in this report is summary in nature, but a list of references (mostly accessible via the Internet) is included for those seeking further details.

This report focuses on the main tuna stocks targeted by the fishery - skipjack tuna (Katsuwonus pelamis), yellowfin tuna (Thunnus albacares), bigeye tuna (T. obesus) and South Pacific albacore tuna (T. alalunga).

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The best way to protect heavily depleted shark populations? Stop trying to catch them!
Friday, 12 September 2014 15:01

sheltonh2014_09_12-silky_shark_thumbFriday 12 September 2014, Secretariat of the Pacific Community (SPC), Noumea, New Caledonia

It was previously thought that the two heavily depleted pelagic sharks in the Western and Central Pacific, the silky and the oceanic whitetip, were victims of unintended bycatch, but a startling new study from the Secretariat of the Pacific Community (SPC) shows that sharks are actually being specifically targeted by some tuna longline boats operating in the equatorial Pacific Ocean.

 

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