Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 350471
Title Task 2: Broodstock management. sub-task 2.1: Extension of the natural reproduction period - early or delayed spawning (WP2)
Author(s) Jansen, H.M.; Kals, J.
Source IJmuiden : IMARES (Report / Wageningen IMARES C080/06) - 37
Department(s) IMARES
Publication type Research report
Publication year 2006
Keyword(s) rivierbaars - aquacultuur - dierproeven - mortaliteit - kuitschieten - periode van kuitschieten - vergelijkend onderzoek - perch - aquaculture - animal experiments - mortality - spawning - spawning season - comparative research
Categories Aquaculture Breeding, Reproduction and Genetics / Experimental Design
Abstract The overall objective of the task was to extend the spawning period of ‘wild’ common perch from some weeks (generally 3 or 4) to 6 months. In order to reach this objective three experiments were performed. During all experiments high mortalities (mostly due to fungal infections) were observed. In previous studies also high mortality rates of wild breeders were observed after capture and in the first phase of captivity conditions. The present results indicate that these mortalities were related to a weakness in immune defences, such as the decrease in temperature (winter syndrome).
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