Publication Date:
2021-06-26
Description:
The quality of eggs spawned by cod of the western Baltic Sea, which were kept in captivity, varies during spawning season. These changes were independent of total length, weight and age of the parental individuals. Diameter, dry weight and fertilisation rate of the spawned eggs decreased during the spawning activities. An influence of water temperature and salinity on the variability of these parameters could not be detected. Diameter, weight and fertilisation rate were, however, influenced by the stage of the spawning process of the parental individuals. These results point out that within the first half of the spawning season not only the largest portion of the fertilised eggs was spawned but also those eggs with the best chance of a successful development.
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:
Ecology
;
Fisheries
;
reproduction
;
embryonic development
;
spawning activity
;
brood stock
;
fertilization
;
Baltic cod
Repository Name:
AquaDocs
Type:
article
,
FALSE
Format:
application/pdf
Format:
application/pdf
Format:
10-16
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