Vertebrae reveal industrial-era increases in Atlantic bluefin tuna catch-at-size and juvenile growth
نویسندگان
چکیده
Abstract Climate change and size-selective overexploitation can alter fish size growth, yet our understanding of how to what extent is limited due a lack long-term biological data from wild populations. This precludes ability effectively forecast population dynamics support sustainable fisheries management. Using modern, archived, archaeological vertebrae dimensions growth rings one the most intensely exploited populations, eastern Atlantic Mediterranean bluefin tuna (Thunnus thynnus, BFT), we estimated catch-at-size early-life patterns 3rd century bce 21st ce understand responses changes in its environment. We provide novel evidence that BFT juvenile increased between 16th–18th, 20th, centuries, correlated with warming climate likely decrease stock biomass. found it equally plausible fisheries-induced evolution has acted increase driving earlier maturation as result exploitation. Coincidently, suggest long history large ( >200 cm FL) capture. Instead, was relatively small comparison more intensive, 20th trap which operated further shore. complex issue would benefit studies using fine-scale biochronological analyses otoliths adaptation genomics, throughout last especially, determine evolutionary exploitation, disentangle influence temperature biomass on growth.
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ژورنال
عنوان ژورنال: Ices Journal of Marine Science
سال: 2023
ISSN: ['1095-9289', '1054-3139']
DOI: https://doi.org/10.1093/icesjms/fsad013