Collaborative study of yellowfin tuna CPUE from multiple Indian Ocean longline fleets in 2018
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Statistics of the French purse fishing fleet targeting tropical tunas in the Atlantic ocean (1991-2017)
In 2017, a total of 12 French vessels operated in the eastern Atlantic Ocean with 1 Bait Boat, 10 Purse Seiner and 1 supply vessel deploying FAD and managing a part of the FAD stock in the water. The total capacity weighted by the months of activity for each vessel is 9 907 t. The total nominal effort in 2017 was of 2794 fishing days and 2335 sets....
Collaboration between fisheries and computer scientists for improved data description : the case of IOTC data sets
Most fisheries data sets managed by the IOTC are in the public domain.These data sets are accessible and well described but currently hard to locate outside the IOTC website and require an improved description for facilitating their use, e.g., making explicit the license rights, the data structure, the codi cations used, and specifying available We...
Global datasets for tuna fisheries
Assessing the status of tuna and tuna-like populations for providing management advice requires the analysis of multiple data sets collected by the contracting parties and cooperating non-contracting parties of Tuna Regional Fisheries Management Organizations (tRFMOs) Conventions. Data on the magnitude and composition of landings, discards, and fis...
Data toolbox for fisheries : the case of tuna fisheries
Assessing the status of tuna and tuna-like populations for providing management advice requires the analysis of multiple data sets collected by the contracting parties and cooperating non-contracting parties of Tuna Regional Fisheries Management Organizations (tRFMOs) Conventions. Data on the magnitude and composition of landings, discards, and sh-...
Statistics of the French purse seine fishing fleet targeting tropical tunas in the Atlantic Ocean (1991-2014)
The French purse seine fleet was composed in 2014 of 9 purse seiners of storage capacity >700 t and >60 m length overall, and 1 support vessel of 40 m length overall. The fleet capacity and overall nominal effort have remained stable in the recent years with a total annual number of about 2,000 fishing sets made in 2014, among which 55% on free-swi...
Standardization of catch rates for the eastern tropical atlantic bigeye tuna caught by the French purse seine DfAD fishe...
The drifting Fish Aggregating Device (dFAD) purse seine fishery is complex and fishing effort depends on a multitude of factors. Traditional indices of fishing effort such as searching time are meaningless for this fishery. We composed a comprehensive list of 28 candidate variables that describe the dFAD fishery and used them as predictors of fishi...
Estimating Ghanaian purse seine and baitboat catch during 2006-2013 : input data for 2015 bigeye stock assessment
Ghanaian industrial tuna fisheries data covering the period 2006-2013 were analyzed following guidelines provided during the ICCAT preparatory meeting for the 2015 assessment of bigeye tuna (Thunnus obesus; BET). To account for differences in fishing strategy and quality of data sources available, the fleet was split between a component of large pu...
Round sardinella (Sardinella aurita) and anchovy (Engraulis encrasicolus) abundance as related to temperature in the sen...
We report the use of generalized additive models to define possible thermal windows related to high abundance of Sardinella aurita and Engraulis encrasicolus in Senegalese waters. Landing data from 1999 to 2009, considered as an abundance index, remotely sensed thermal data (sea surface temperature, SST from AVHRR Pathfinder V5) and a temporal vari...
Round sardinella (Sardinella aurita) and anchovy (Engraulis encrasicolus) abundance as related to temperature in the sen...
We report the use of generalized additive models to define possible thermal windows related to high abundance of Sardinella aurita and Engraulis encrasicolus in Senegalese waters. Landing data from 1999 to 2009, considered as an abundance index, remotely sensed thermal data (sea surface temperature, SST from AVHRR Pathfinder V5) and a temporal vari...
