Female Baltic herring Clupea harengus allocate resources from growth to reproduction in poor feeding conditions

Autor:	Päivi Laine, Ilppo Vuorinen, Marjut Rajasilta, Jan Eklund, Jari Hänninen
Rok vydání:	2015
Předmět:	biology media_common.quotation_subject Reproductive strategy Clupea Aquatic Science Trade-off biology.organism_classification Poor Feeding Salinity Fishery Herring Fish Reproduction Ecology Evolution Behavior and Systematics media_common
Zdroj:	Journal of Fish Biology. 86:575-591
ISSN:	0022-1112
DOI:	10.1111/jfb.12577
Popis:	The trade-off between somatic growth and reproduction in the female Baltic herring Clupea harengus was investigated from 1984 to 2002. During the study period, growth decreased, as a consequence of decreasing salinity and weakening of feeding conditions. Production of muscle and ovarian tissue decreased in repeat spawners, but investment in reproduction took an increasing amount of the total production of new tissues. This suggested that a shift in allocation to reproduction takes precedence over body growth in the reproductive strategy of C. harengus. The process also indicated one possible mechanism leading to dwarf forms in fish populations.
Databáze:	OpenAIRE
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