Impacts of climate change on the complex life cycles of fish

Type Article
Date 2013
Language English
Author(s) Petitgas Pierre1, Rijnsdorp Adriaan D.2, Dickey-Collas Mark2, Engelhard Georg3, Peck Myron A.4, Pinnegar John K.3, Drinkwater Ken5, Huret MartinORCID1, Nash Richard D. M.5
Affiliation(s) 1 : IFREMER, F-29280 Plouzane, France.
2 : IMARES, NL-1970 AB IJmuiden, Netherlands.
3 : CEFAS, Lowestoft NR33 0HT, Suffolk, England.
4 : Univ Hamburg, IHF, D-22767 Hamburg, Germany.
5 : IMR, N-5817 Bergen, Norway.
Source Fisheries Oceanography (1054-6006) (Wiley-blackwell), 2013 , Vol. 22 , N. 2 , P. 121-139
DOI 10.1111/fog.12010
WOS© Times Cited 111
Keyword(s) anchovy, cod, connectivity, eco-physiology, habitat, herring, plaice
Abstract To anticipate the response of fish populations to climate change, we developed a framework that integrates requirements in all life stages to assess impacts across the entire life cycle. The framework was applied on plaice (Pleuronectes platessa) and Atlantic herring (Clupea harengus) in the North Sea, Atlantic cod (Gadus morhua) in the Norwegian/Barents Seas and European anchovy (Engraulis encrasicolus) in the Bay of Biscay. In each case study, we reviewed habitats required by each life stage, habitat availability, and connectivity between habitats. We then explored how these could be altered by climate change. We documented environmental processes impacting habitat availability and connectivity, providing an integrated view at the population level and in a spatial context of potential climate impacts. A key result was that climate-driven changes in larval dispersion seem to be the major unknown. Our summary suggested that species with specific habitat requirements for spawning (herring) or nursery grounds (plaice) display bottlenecks in their life cycle. Among the species examined, anchovy could cope best with environmental variability. Plaice was considered to be least resilient to climate-driven changes due to its strict connectivity between spawning and nursery grounds. For plaice in the North Sea, habitat availability was expected to reduce with climate change. For North Sea herring, Norwegian cod and Biscay anchovy, climate-driven changes were expected to have contrasting impacts depending on the life stage. Our review highlights the need to integrate physiological and behavioural processes across the life cycle to project the response of specific populations to climate change.
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Petitgas Pierre, Rijnsdorp Adriaan D., Dickey-Collas Mark, Engelhard Georg, Peck Myron A., Pinnegar John K., Drinkwater Ken, Huret Martin, Nash Richard D. M. (2013). Impacts of climate change on the complex life cycles of fish. Fisheries Oceanography, 22(2), 121-139. Publisher's official version : https://doi.org/10.1111/fog.12010 , Open Access version : https://archimer.ifremer.fr/doc/00118/22935/