A majorCalanus finmarchicusoverwintering population inside a deep fjord in northern Norway: implications for cod larvae recruitment success.
HighCalanus finmarchicusabundances were recorded in wintertime in Vestfjorden, close to the main cod breeding grounds off Lofoten and Vesterålen, northern Norway. The mean abundance for locations with water depth >500 m was ∼37000 ind. m-2(range: 26700-49000 ind. m-2). To our knowledge, this is the first report of massive overwintering ofC. finmarchicuson the Norwegian shelf. Because of the observed size and location of this population, we argue that local overwintering on the northern Norwegian shelf can contribute significantly to sustain aC. finmarchicuspopulation on the shelf during the period of first feeding for cod larvae. This is supported by a particle tracking model.
Faculty of Biosciences and Aquaculture , University of Nordland , Bodø N-8049 , Norway.
Boris
B
Espinasse
Faculty of Biosciences and Aquaculture , University of Nordland , Bodø N-8049 , Norway.
Sünnje L
SL
Basedow
Faculty of Biosciences and Aquaculture , University of Nordland , Bodø N-8049 , Norway.
Vigdis
V
Tverberg
Akvaplan-Niva As , Strandgata 11, Tromsø 9007 , Norway.
Tore
T
Hattermann
Faculty of Biosciences and Aquaculture , University of Nordland , Bodø N-8049 , Norway.
Ketil
K
Eiane
Lofoten coast; fjord-shelf exchange; particle tracking; sub-polar ecosystem