Title: Effect of environmental variability and spawner characteristics on the recruitment of Baltic herring (Clupea harengus membras) populations
Authors: CARDINALE MassimilianoMOELLMANN ChristianBARTOLINO ValerioCASINI MicheleKORNILOVS GeorgsRAID TiitMARGONSKI PiotrGRZYB AnnaRAITANIEM JariGRÖHSLER TomasFLINKMAN Juha
Citation: MARINE ECOLOGY-PROGRESS SERIES vol. 388 p. 221-234
Publisher: INTER-RESEARCH
Publication Year: 2009
JRC N°: JRC52453
ISSN: 0171-8630
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC52453
DOI: 10.3354/meps08125
Type: Articles in Journals
Abstract: We analyzed recruitment-environment relationships for five distinct Baltic Sea herring stocks inhabiting the areas of the Western Baltic (WBH), the Main Basin (MBH), the Gulf of Riga (GRH), the Bothnian Sea (BSH) and the Bothnian Bay (BBH). A number of hydro-climatic and biological predictors were tested for their effect on recruitment. Temperature was detected to be a predictor for three of the Baltic herring stocks (MBH, GRH and BSH). However, spawning stock biomass was the major factor explaining recruitment for GRH and weight-at-age of the spawners was an important predictor of MBH recruitment. For two out of four stocks for which complete zooplankton data were available (BSH and MBH), food supply was also a significant predictor, suggesting that changes in climate and/or food-web structure may affect indirectly herring recruitment via prey availability for the recruits or spawners. Our results emphasize both similarities and differences in the main regulators of recruitment dynamics for the five Baltic herring stocks that should be taken under consideration in the development of area-specific management strategies throughout the Baltic Sea basin.
JRC Institute:Institute for the Protection and Security of the Citizen

Files in This Item:
There are no files associated with this item.


Items in repository are protected by copyright, with all rights reserved, unless otherwise indicated.