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Decline in high economic value fish in the Mediterranean and European seas
Lamine, E.B.; Schickele, A.; Goberville, E.; Beaugrand, G.; Allemand, D.; Raybaud, V. (2022). Decline in high economic value fish in the Mediterranean and European seas. Research Square 1358711/v1: 1-19. https://doi.org/10.21203/rs.3.rs-1358711/v1
In: Research Square (Preprints). Research Square: Durham. ISSN 2693-5015, meer
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| Beschikbaar in | Auteurs |
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Documenttype: Preprint
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| Author keywords |
species distribution modelling, species range shifts, ensemble model, high economic value fish, climate change |
| Auteurs | | Top |
- Lamine, E.B.
- Schickele, A.
- Goberville, E.
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- Beaugrand, G., meer
- Allemand, D.
- Raybaud, V.
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| Abstract |
Fisheries and aquaculture are facing many challenges worldwide, especially adaptation to climate change. Investigating future distributional changes of largely harvested species has become an extensive research topic, aiming at providing realistic ecological scenarios on which to build management measures, to help fisheries and aquaculture adapt to future climate-driven changes. Here, we use an ensemble modelling approach to estimate the contemporary and future distributional range of eight fish Species of High Economic Value (SHEV) in the Mediterranean Sea. We identify a cardinal influence of (i) temperature on SHEVs distributions, all being shaped by yearly mean and seasonality in sea bottom temperature, and (ii) the primary production. By assessing the effects of changes in future climate conditions under three Representative Concentration Pathway (RCP2.6, RCP4.5 and RCP8.5) scenarios over three periods of the 21st century, we project a contraction of the distributional range of the eight SHEVs in the Mediterranean Sea, with a general biogeographical displacement towards the North European coasts. This will help anticipating changes in future catch potential in a warmer world, which is expected to have substantial economic consequences for Mediterranean fisheries. |
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