IYFS 87
Type | Oceanographic cruise |
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Set | This cruise is part of the set IYFS |
Ship | Thalassa |
Ship owner | Ifremer |
Dates | 29/01/1987 - 27/02/1987 |
Chief scientist(s) | VERIN Yves |
HALIEUTIQUE MANCHE MER DU NORD - BOULOGNE-SUR-MER Centre Ifremer Manche Mer du Nord 150 quai Gambetta 62200 Boulogne-sur-Mer +33 (0)3 21 99 56 00 |
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DOI | 10.17600/87000611 |
Objective | Assessment of abundance indexes by age for the seven main commercial species of gadoid and clupeidae fish in the North Sea (herring, sprat, mackerel, cod, haddock, whiting, Norwegian pout). These indexes make it possible to estimate recruitment values for these species (i.e., the number of individuals born in 1986). These values are essential for beginning the computations implemented to establish structural stock assessment models. Eight countries take part in this programme, joined by France in 1976. |