Species and habitats - Merlangius merlangus - Mature - BTS annual abundance in July (2007-2010)

Date(s) (Publication)
Custodian(s): CHARM Consortium
Point of contact(s): David Stephens
Affiliation(s) 1 : Center for Environment, Fisheries & Aquaculture Science
2 : CHARM Consortium
Credit CEFAS
Abstract Biologic data have been expressed in abundance (numbers or density values (nbr/kmĀ²) and always required to be log-transformed using a log10(x+1) transformation)
Keywords Species data set, CHARM, Habitats et biotopes, ressource halieutique
Lineage The standard survey has a total of approximately 100 tows or stations (75 are in ICES division VIId,25 are in ICES division Ivc). A commercial 4m beam trawl fitted with a chain mat, flip-up ropes, and a 40 mm cod-end liner is used.The gear is towed at 4 knots (ground speed) for 30 minutes on a warp length appropriate to the depth of water. At each sampling station (only daylight), all the fish species are sorted, weighed, counted and measured.
Utilisation research-only
Temporal Extent 2007-01-01 - 2010-12-31