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- W4379538054 endingPage "e15524" @default.
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- W4379538054 abstract "The integrated biochemical condition (IBC) of gonads is closely related to the reproductive success of highly migratory marine species. The IBC of gonads can be influenced not only by size and/or age, but also by environmental conditions. Here, female swordfish, Xiphias gladius , that migrate to temperate regions with a marked seasonality ( e.g ., the Southeastern Pacific Ocean, SEPO) were compared in relation to the IBCs (lipids, proteins, glucose and, fatty acid profiles) of their gonads; individuals with two body size ranges and distinct degrees of sexual maturity were evaluated, and considered as: small and/or virginal (SV: <170 cm lower jaw fork-length (LJFL), oocyte size (OS) <0.08 mm) vs large and/or maturing females (LM: >190 cm LJFL, OS >0.133 mm). This comparison was conducted in two environmentally contrasting seasons (winter vs spring). Our results showed that the gonadosomatic index (GSI) was significantly higher in LM than SV. Lipid contents varied significantly between seasons and body sizes. The highest lipid concentrations were recorded in the spring in large females. No significant differences were found when comparing the protein and glucose contents of the two evaluated seasons or body size ranges of the studied females. In turn, the fatty acid (FA) profiles of female gonads significantly varied for both seasons and body size ranges. A high content of saturated fatty acids (SFAs), monounsaturated fatty acids (MUFAs) and poly-unsaturated fatty acids (PUFAs) were recorded in female gonads in the spring. The SFAs C16:0 and C18:0, the MUFA C18:1 n 9, and the essential PUFA C22:6 n 3 were the main contributors to the observed differences between spring and winter. These results could be used as indicators of the nutritional condition and health status of swordfish individuals. Hence, the IBC of female swordfish gonads have great potential to aid in estimating survival rates and stock abundances of this species. The integration of this information constitutes an asset in fishery management models with an ecosystem approach." @default.
- W4379538054 created "2023-06-07" @default.
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- W4379538054 date "2023-06-06" @default.
- W4379538054 modified "2023-10-16" @default.
- W4379538054 title "Temporal and inter-individual changes in the integrated biochemical condition of the gonads of female swordfish (<i>Xiphias gladius</i>) from the Southeastern Pacific Ocean" @default.
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- W4379538054 doi "https://doi.org/10.7717/peerj.15524" @default.
- W4379538054 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/37304888" @default.
- W4379538054 hasPublicationYear "2023" @default.
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