Publication Date:
2021-07-01
Description:
Ichthyoplankton provides information on the species com-position in an area of investigation and leads to a better understanding of the entire fish community. Every year since 1993 May/June (from 2000 in April/May) an ichthyoplankton survey in ICES Subdivision 22 and 24 has been done to sample the plankton community in the western Baltic Sea. One objective was to acquire indicators of possible changes in the natural structures of the fish com-munity. The time series derived from the Bongo-Net samples is too short to show a trend in larval densities. Up to now samples in the western Baltic Sea yielded only low mean densities. According to the reproductive biology the fish species were divided in three major groups:•Fish species with a long developmental phase in the plankton community•Small short lived species with benthic eggs and a reduced planktonic phase•Guests without local spawning populations. Species were identified, which were absent in the plankton of the western Baltic Sea in the 1960s and 1970s.
Description:
Johann Heinrich von Thünen-Institute, Federal Research Institute for Rural Areas, Forestry and Fisheries began publishing the Informationen aus der Fischereiforschung = Information on Fishery Research in 2010.
Keywords:
Fisheries
;
Biodiversity
;
recruitment
Repository Name:
AquaDocs
Type:
article
,
FALSE
Format:
application/pdf
Format:
application/pdf
Format:
122-125
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