Spring zooplankton distribution in the Bay of Biscay from 1998 to 2006 in relation with anchovy recruitment

Xabier Irigoien; Jose Antonio Fernandes; Philippe Grosjean; Kevin Denis; Aitor Albaina; Maria Santos

doi:10.1093/plankt/fbn096

Spring zooplankton distribution in the Bay of Biscay from 1998 to 2006 in relation with anchovy recruitment

Xabier Irigoien^*, Jose Antonio Fernandes, Philippe Grosjean, Kevin Denis, Aitor Albaina, Maria Santos

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

79 Scopus citations

Abstract

The objective of this study was to investigate whether successive recruitment failures in the anchovy fishery in the Bay of Biscay were due to changes in the zooplankton biomass or composition. Image analysis and automatic recognition were used to analyse zooplankton samples collected during diel egg production method spring surveys from 1998 to 2006. We were not able to detect any trend in zooplankton biomass during this period. The zooplankton spatial distribution showed permanent features with large organisms being more abundant over the shelf break and outer areas. Finally, we found a negative correlation between anchovy recruitment and zooplankton biomass which suggests that the 2002-2006 failures in anchovy recruitment in the Bay of Biscay are not due to a decrease in mesozooplankton biomass.

Original language	English (US)
Pages (from-to)	1-17
Number of pages	17
Journal	Journal of Plankton Research
Volume	31
Issue number	1
DOIs	https://doi.org/10.1093/plankt/fbn096
State	Published - Jan 2009
Externally published	Yes

ASJC Scopus subject areas

Ecology, Evolution, Behavior and Systematics
Aquatic Science
Ecology

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title = "Spring zooplankton distribution in the Bay of Biscay from 1998 to 2006 in relation with anchovy recruitment",

abstract = "The objective of this study was to investigate whether successive recruitment failures in the anchovy fishery in the Bay of Biscay were due to changes in the zooplankton biomass or composition. Image analysis and automatic recognition were used to analyse zooplankton samples collected during diel egg production method spring surveys from 1998 to 2006. We were not able to detect any trend in zooplankton biomass during this period. The zooplankton spatial distribution showed permanent features with large organisms being more abundant over the shelf break and outer areas. Finally, we found a negative correlation between anchovy recruitment and zooplankton biomass which suggests that the 2002-2006 failures in anchovy recruitment in the Bay of Biscay are not due to a decrease in mesozooplankton biomass.",

author = "Xabier Irigoien and Fernandes, {Jose Antonio} and Philippe Grosjean and Kevin Denis and Aitor Albaina and Maria Santos",

note = "Funding Information: This research was funded by the Department of Agriculture, Fisheries and Food of the Basque Country Government through the Bioman and Ecoanchoa projects as well as by the Ministry of Education of Spain through the project EIPZI. J. Fernandes is supported by a doctoral fellowship from the Fundaci{\'o}n Centros Tecnol{\'o}gicos I{\~n}aki Goenaga. P.G. and K.D. work is partly supported by funds from Belgian Sciences Policy, SSD program no. SD/NS/03A (AMORE III).",

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language = "English (US)",

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AU - Irigoien, Xabier

AU - Fernandes, Jose Antonio

AU - Grosjean, Philippe

AU - Denis, Kevin

AU - Albaina, Aitor

AU - Santos, Maria

N1 - Funding Information: This research was funded by the Department of Agriculture, Fisheries and Food of the Basque Country Government through the Bioman and Ecoanchoa projects as well as by the Ministry of Education of Spain through the project EIPZI. J. Fernandes is supported by a doctoral fellowship from the Fundación Centros Tecnológicos Iñaki Goenaga. P.G. and K.D. work is partly supported by funds from Belgian Sciences Policy, SSD program no. SD/NS/03A (AMORE III).

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N2 - The objective of this study was to investigate whether successive recruitment failures in the anchovy fishery in the Bay of Biscay were due to changes in the zooplankton biomass or composition. Image analysis and automatic recognition were used to analyse zooplankton samples collected during diel egg production method spring surveys from 1998 to 2006. We were not able to detect any trend in zooplankton biomass during this period. The zooplankton spatial distribution showed permanent features with large organisms being more abundant over the shelf break and outer areas. Finally, we found a negative correlation between anchovy recruitment and zooplankton biomass which suggests that the 2002-2006 failures in anchovy recruitment in the Bay of Biscay are not due to a decrease in mesozooplankton biomass.

AB - The objective of this study was to investigate whether successive recruitment failures in the anchovy fishery in the Bay of Biscay were due to changes in the zooplankton biomass or composition. Image analysis and automatic recognition were used to analyse zooplankton samples collected during diel egg production method spring surveys from 1998 to 2006. We were not able to detect any trend in zooplankton biomass during this period. The zooplankton spatial distribution showed permanent features with large organisms being more abundant over the shelf break and outer areas. Finally, we found a negative correlation between anchovy recruitment and zooplankton biomass which suggests that the 2002-2006 failures in anchovy recruitment in the Bay of Biscay are not due to a decrease in mesozooplankton biomass.

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Spring zooplankton distribution in the Bay of Biscay from 1998 to 2006 in relation with anchovy recruitment

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