Assessing Prospects for Integrating Asian Carp Polyculture in Europe: A Nature-Based Solution Under Climate Change - Département Recherches Subatomiques
Article Dans Une Revue Fishes Année : 2024

Assessing Prospects for Integrating Asian Carp Polyculture in Europe: A Nature-Based Solution Under Climate Change

Résumé

Aquaculture's role in addressing food security has grown, with a spotlight on Asian carp species. Polyculture, cultivating multiple fish species in a single system, is increasingly adopted for its resource efficiency and economic benefits. This practice, including Asian fish for food and ornamental purposes, is gaining traction in Europe despite their invasive potential. Rising temperatures due to climate change offer an opportunity for thermophilic Asian carps (Hypophthalmichthys molitrix and Aristichthys nobilis). Thus, using GIS modeling (Maxent), we identified the possible successful settlement of Asian carp in Northern Europe amidst climate change. We analyze carp global distribution centers, assess potential carp spread in Europe, and evaluate their potential suitability for polyculture systems. By 2050, H. molitrix may extend its range to 58-62°N latitude, with a potential 1.7-fold habitat increase, while A. nobilis, more heat-tolerant, may move north to 52-58°N latitude, with a 1.3-fold potential increase. Despite slight ecological differences from their native habitats, niche modeling indicates these carp can occupy similar niches in Europe (proven statistically). The eventuality of using Asian species for polyculture in Europe presents both opportunities and challenges in the face of a changing climate as long invasion risks are prevented. Envisaging such polyculture yet very carefully for protecting 33 ecosystems can help food security.
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hal-04694824 , version 1 (11-09-2024)

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Oksana Nekrasova, Mihails Pupins, Volodymyr Tytar, Leonid Fedorenko, Oleksandr Potrokhov, et al.. Assessing Prospects for Integrating Asian Carp Polyculture in Europe: A Nature-Based Solution Under Climate Change. Fishes, 2024, 9 (4), pp.148. ⟨10.3390/fishes9040148⟩. ⟨hal-04694824⟩
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