FN Archimer Export Format
PT J
TI A methodology based on data filtering to identify reference fleets to account for the abundance of fish species: Application to the Striped red mullet (Mullus surmulletus) in the Bay of Biscay
BT 
AF Caill-Milly, Nathalie
   Lissardy, Muriel
   Bru, Noëlle
   Dutertre, Marie-adèle
   Saguet, Cassandre
AS 1:1;2:1;3:2;4:3;5:1;
FF 1:PDG-ODE-LITTORAL-LERAR;2:PDG-ODE-LITTORAL-LERAR;3:;4:;5:PDG-ODE-LITTORAL;
C1 Ifremer - Laboratory Environment Resources of Arcachon/Anglet (France), Ifremer - Laboratory Environment Resources of Arcachon/Anglet (France), 1 Allée du Parc Montaury, 64600, Anglet, France
   CNRS / University of Pau & Pays de l'Adour/ E2S UPPA, Laboratory of Mathematics and its Applications of Pau – MIRA, UMR5142, 1 Allée du Parc Montaury, 64600, Anglet, France
   University of Pau & Pays de l'Adour - STEE College - Montaury Campus, 1 Allée du Parc Montaury, 64600, Anglet, France
C2 IFREMER, FRANCE
   UNIV PAU & PAYS ADOUR, FRANCE
   UNIV PAU & PAYS ADOUR, FRANCE
SI ANGLET
   SETE
SE PDG-ODE-LITTORAL-LERAR
   PDG-ODE-LITTORAL
IN WOS Ifremer UPR
   copubli-france
   copubli-univ-france
IF 2.424
TC 2
UR https://archimer.ifremer.fr/doc/00503/61495/65305.pdf
LA English
DT Article
DE ;Data-limited stock;Commercial data;Discards;LPUE;Professional knowledge;Data filtering
AB For data-limited stocks (DLS), professional fishing data can be used as a potential source of information, especially in the absence of appropriate scientific survey, to understand abundance evolution under realistic hypothesis on resource catchability. This work focuses on a data-filtering approach, the selected fishing effort must reflect vessel activity that is least dependent on their technical characteristics and as stable as possible over time. The variable of interest is landing by fishing sequence (landing for a given gear, gear mesh, day and ICES statistical rectangle) called LPUE. In order to account for the abundance of the species, it was necessary to consider the discards. The method thus proceeds in 4 steps: (i) focus on LPUE variability and causes' prioritization; (ii) cluster definition to obtain a typology of vessels; (iii) average LPUE per cluster analysis; (iv) consideration of gear mesh classes and seasonal variations (quarters). This approach is outlined for the Striped red mullet of the Bay of Biscay that is currently in DLS category 5. Two reference fleets are thereby proposed: firstly the otter trawlers composed of small vessels (7.9–15.8 m) with a gauge of 2–43.9 grt, an engine power between 44 and 256 kW and a gear mesh of 70–79 mm; secondly the set gillnetters, which are defined by medium-sized vessels (8.2–14.8 m, 2–30.2 grt, 70–331 kW) whose gear mesh is either 50–59 mm (2nd and 3rd quarters), 60–69 mm (2nd quarter) or greater than 90 mm (2nd quarter). LPUEs of these fleets show a downward trend, significant in two out of four cases which may reflect a deterioration of the status of the Striped red mullet stock. 
PY 2019
PD JUN
SO Continental Shelf Research
SN 0278-4343
PU Elsevier BV
VL 183
UT 000477788600005
BP 51
EP 72
DI 10.1016/j.csr.2019.06.004
ID 61495
ER

EF