Biosynthesis of Polyunsaturated Fatty Acids—‘Many Can, Some Can’t’

Steinberg, Christian

doi:10.1007/978-3-030-87227-4_28

Cited by 2 publications

(1 citation statement)

References 112 publications

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“…Some of this variation in PUFA composition (especially SDA) between sites occurred at the base of the food chain (supplement J), suggesting that different PUFA composition in periphyton can influence the quality of PUFA export. It remains unclear why this similarity in PUFA profiles to periphyton was not visible in the grazing Ephemeroptera, but internal processes like bioconversion and selective retention may play a role (Kühmayer et al, 2020;Steinberg, 2022).…”

Section: Quantitative Differences In Biomass Export Of Aquatic Insectsmentioning

confidence: 99%

Stream degradation affects aquatic resource subsidies to riparian ground-dwelling spiders

Kowarik

Martin‐Creuzburg

Mathers

et al. 2023

Science of The Total Environment

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Section: Quantitative Differences In Biomass Export Of Aquatic Insectsmentioning

confidence: 99%

Stream degradation affects aquatic resource subsidies to riparian ground-dwelling spiders

Kowarik

Martin‐Creuzburg

Mathers

et al. 2023

Science of The Total Environment

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Temporal and inter-individual changes in the integrated biochemical condition of the gonads of female swordfish (Xiphias gladius) from the Southeastern Pacific Ocean

Guzmán‐Rivas

Ortega

Mora

et al. 2023

PeerJ

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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 C18:1n9, and the essential PUFA C22:6n3 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.

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Biosynthesis of Polyunsaturated Fatty Acids—‘Many Can, Some Can’t’

Cited by 2 publications

References 112 publications

Stream degradation affects aquatic resource subsidies to riparian ground-dwelling spiders

Stream degradation affects aquatic resource subsidies to riparian ground-dwelling spiders

Temporal and inter-individual changes in the integrated biochemical condition of the gonads of female swordfish (Xiphias gladius) from the Southeastern Pacific Ocean

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