FN Archimer Export Format
PT Rapport
TI Direct assessment of small pelagic fish by the PELGAS16 acoustic survey
BT 
AF DUHAMEL, Erwan
   DORAY, Mathieu
   HURET, Martin
   SANCHEZ, Florence
   LESPAGNOL, Patrick
   Doremus, Ghislain
   Lemerre, Charlotte
AS 1:1;2:2;3:1;4:5;5:1;6:4;7:3;
FF 1:PDG-RBE-STH-LTBH;2:PDG-RBE-EMH;3:PDG-RBE-STH-LBH;4:PDG-RBE-HGS-LRHAQ;5:PDG-RBE-STH-LTBH;6:;7:;
C1 IFREMER, lab. Fisheries Research, 8 rue François Toullec 56100 LORIENT, France
   IFREMER, lab. Fisheries Ecology, BP 21105, F- 44311, Nantes, France.
   CNPMEM, 134 avenue de Malakoff, 75116 PARIS, France
   Observatoire PELAGIS - UMS 3462 - Université de La Rochelle – CNRS - Pôle Analytique – 5 allée de l’Océan - 17000 LA ROCHELLE, France
   IFREMER, Allée du Parc Montaury 64600 Anglet, France
C2 IFREMER, FRANCE
   IFREMER, FRANCE
   CNPMEM, FRANCE
   UNIV LA ROCHELLE, FRANCE
   IFREMER, FRANCE
SI LORIENT
   NANTES
   BREST
   ANGLET
SE PDG-RBE-STH-LTBH
   PDG-RBE-EMH
   PDG-RBE-STH-LBH
   PDG-RBE-HGS-LRHAQ
UR https://archimer.ifremer.fr/doc/00344/45546/45157.pdf
LA English
DT Report
CR PELGAS 2016
BO Thalassa
AB The Pelgas16 acoustic survey has been carried out with very good weather conditions (regular low wind, medium temperatures) for the whole area, from the South of the bay of Biscay to the west of Brittany. The help of commercial vessels (two pairs of pelagic trawlers and a single one) during 18 days provided about 120 valid identification hauls instead of about 60 before 2007 when Thalassa was alone to identify echotraces. Their participation increased the precision of identification of echoes and some double hauls permitted to confirm that results provided by the two types of vessels (R/V and Fishing boats) were comparable and usable for biomass estimate purposes. These commercial vessels participated to the PELGAS survey in a very good spirit of collaboration, with the financial help of "France Filière Pêche" which is a groupment of French fishing organisations. The PELGAS16 survey observed a medium level of anchovy biomass, which seems to be a medium biomass compared to previous year's, comparable to 2010 and far away from the 2015 biomass. The biomass estimate of sardine observed during PELGAS16 is decreasing compared to the last years level of biomass. It confirms that this specie shows a variable abundance in the bay of Biscay at this period.
PY 2016
PD JUL
ID 45546
ER

EF