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| Hidalgo, Manuel; Rossi, Vincent; Monroy, Pedro; Ser‐giacomi, Enrico; Hernández‐garcía, Emilio; Guijarro, Beatriz; Massutí, Enric; Alemany, Francisco; Jadaud, Angelique; Perez, Jose; Reglero, Patricia. |
| Marine resources stewardships are progressively becoming more receptive to an effective incorporation of both ecosystem and environmental complexities into the analytical frameworks of fisheries assessment. Understanding and predicting marine fish production for spatially and demographically complex populations in changing environmental conditions is however still a difficult task. Indeed, fisheries assessment is mostly based on deterministic models that lack realistic parameterizations of the intricate biological and physical processes shaping recruitment, a cornerstone in population dynamics. We use here a large metapopulation of a harvested fish, the European hake (Merluccius merluccius), managed across transnational boundaries in the northwestern... |
| Tipo: Text |
Palavras-chave: Ecosystem-based management; Fish recruitment; Fisheries conservation; Hydroclimate variability; Metapopulations; Ocean connectivity; Self-recruitment. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00504/61559/65478.pdf |
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| Brunel, Thomas; Boucher, Jean. |
| This study investigates the temporal correspondence between the main patterns of recruitment variations among north-east Atlantic exploited fish populations and large-scale climate and temperature indices. It is of primary importance to know what changes in fish stock productivity can be expected in response to climate change, to design appropriate management strategies. The dominant patterns of recruitment variation were extracted using a standardized principal component analysis (PCA). The first principal component (PC) was a long-term decline, with a stepwise change occurring in 1987. A majority of Baltic Sea, North Sea, west of Scotland and Irish Sea populations, especially the gadoids, have followed this decreasing trend. On the contrary, some herring... |
| Tipo: Text |
Palavras-chave: North Atlantic; Global warming; Fishing impacts; Fish recruitment; Comparative approach; Climate change. |
| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/2007/publication-2636.pdf |
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