caa a22 4500 397550286 CHVBK 20180308164748.0 cr unu---uuuuu 161202e199612 xx s 000 0 eng 10.1006/jmsc.1996.0123 doi (NATIONALLICENCE)oxford-10.1006/jmsc.1996.0123 Can changes in the fisheries yield in the Kattegat (1950-1992) be linked to changes in primary production? [Elektronische Daten] [E. Nielsen, K. Richardson] The increase in fisheries yield in the Kattegat during the last four decades can be correlated with a concomitant increase in annual primary production in the region. However, this correlation does not necessarily indicate cause and effect. Other changes have occurred during this period that may also affect fisheries yield (changes in fishing effort, market demand, fleet composition, etc.). This paper examines some of these factors in an effort to identify the underlying cause(s) of the observed increase in fisheries yield. It is concluded that, although there have been major changes in the structure of the fishing fleet and fishing effort in the Kattegat during this period, the observed increase in fisheries yield probably reflects, at least in part, a real increase in fish biomass. It is not possible to document a direct link between this suspected increase in biomass and an increase in primary production. It is, however, noted that the changes in the relative proportion of benthic to pelagic species in the fishery are consistent with the changes which are predicted to occur following an increase in primary production. © 1996 International council for the Exploration of the Sea Articles nationallicence catch per unit effort nationallicence fisheries yield nationallicence Kattegat nationallicence primary production nationallicence Nielsen E. Danish Institute for Fisheries Research, Charlottenlund Castle, DK-2920, Charlottenlund, Denmark aut Richardson K. Danish Institute for Fisheries Research, Charlottenlund Castle, DK-2920, Charlottenlund, Denmark aut ICES Journal of Marine Science Oxford University Press 53/6(1996-12), 988-994 1054-3139 53:6<988 1996 53 icesjms https://doi.org/10.1006/jmsc.1996.0123 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1006/jmsc.1996.0123 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Nielsen E. Danish Institute for Fisheries Research, Charlottenlund Castle, DK-2920, Charlottenlund, Denmark aut NATIONALLICENCE 700 1- Richardson K. Danish Institute for Fisheries Research, Charlottenlund Castle, DK-2920, Charlottenlund, Denmark aut NATIONALLICENCE 773 0- ICES Journal of Marine Science Oxford University Press 53/6(1996-12), 988-994 1054-3139 53:6<988 1996 53 icesjms Metadata rights reserved CC BY-NC-4.0 http://creativecommons.org/licenses/by-nc/4.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-oxford