Catch Per Unit Effort of deep-sea species off the continental slope to the west of British Isles.

Type Article
Date 2000
Language English
Author(s) Girard Marine, Lorance PascalORCID, Biseau Alain
Affiliation(s) MNHN, Stn Biol Marine, F-29182 Concarneau, France.
IFREMER, F-62321 Boulogne, France.
IFREMER, F-56100 Lorient, France.
Source Cybium (0399-0974) (Soc Francaise D Ichtyologie), 2000 , Vol. 24 , N. 3 , P. 97-104
WOS© Times Cited 4
Keyword(s) Hoplostethus atlanticus, Coryphaenoides rupestris, Aphanopus carbo, Centroscymnus coelolepis, Centrophorus squamosus, continental slopes, Catch Per Unit Effort, abundance indices
Abstract Catch Per Unit Effort (CPUE) trends of the main target species of the deep-sea fishery were recorded for one sample trawler in two areas to the west of the British Isles, from 1993 to 1997. Considered species were the orange roughy (Hoplostethus atlanticus), the roundnose grenadier (Coryphaenoides rupestris), the black scabbard fish (Aphanopus carbo) and two squalid sharks: the Portuguese dogfish (Centroscymnus coelolepis) and the leafscale gulper shark (Centrophorus squamosus). Two sources of data have been used: the catch and effort database of IFREMER and the personal logbooks of the skipper from the sample trawler. The personal logbooks indicate the catch per haul, whereas the IFREMER database provides the catch and effort per day and statistical rectangle. From the personal logbooks, the time spent on deep-sea species can be known and CPUE corrected for the depth. These corrected CPUE allow to take into account the changes of the fishing strategy and the variations of the fish abundance according to depth. Both, the life strategies of the exploited species and the fishing strategy of the trawler are very important to consider the CPUE as abundance indices.
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Girard Marine, Lorance Pascal, Biseau Alain (2000). Catch Per Unit Effort of deep-sea species off the continental slope to the west of British Isles. Cybium, 24(3), 97-104. Open Access version : https://archimer.ifremer.fr/doc/00000/10397/