Fatty acid stable isotope signatures of molluscs exposed to finfish farming outputs

Tracing the flow of nutrients from aquaculture operations to the surrounding biota is important for environmental monitoring and developing integrated aquaculture practices. A novel approach in this context, compound specific stable isotope analysis (CSIA) was used to trace fatty acid (FA) carbon in...

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Autores principales:	SM Colombo, CC Parrish, MJ Whiticar
Formato:	article
Lenguaje:	EN
Publicado:	Inter-Research 2016
Materias:	Aquaculture. Fisheries. Angling SH1-691 Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/c982e6bf8e2a4d9886110c8d959f5e9f
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spelling	oai:doaj.org-article:c982e6bf8e2a4d9886110c8d959f5e9f2021-11-11T11:07:01ZFatty acid stable isotope signatures of molluscs exposed to finfish farming outputs1869-215X1869-753410.3354/aei00202https://doaj.org/article/c982e6bf8e2a4d9886110c8d959f5e9f2016-10-01T00:00:00Zhttps://www.int-res.com/abstracts/aei/v8/p611-617/https://doaj.org/toc/1869-215Xhttps://doaj.org/toc/1869-7534Tracing the flow of nutrients from aquaculture operations to the surrounding biota is important for environmental monitoring and developing integrated aquaculture practices. A novel approach in this context, compound specific stable isotope analysis (CSIA) was used to trace fatty acid (FA) carbon in benthic invertebrates from multiple aquaculture sites in the Broughton Archipelago, British Columbia, Canada, up to 2500 m away from each site. We found that the carbon isotope ratios (δ13C) of certain FA in mussels and limpets were gradually 13C-enriched with increasing distance away from the site, suggesting that the farm contributed to more depleted isotopic signatures among organisms within the vicinity of the site. In mussels, the δ13C of 16:2n-4, 16:3n-4, 20:1n-9, 22:6n-3, saturated FA, the bacterial FA marker, and the overall weighted mean of FA became significantly more 13C-enriched with increasing distance from the farm (r2 > 0.28, p < 0.05). In limpets, the δ13C of 17:0, 18:4n-3, 20:4n-3 and the zooplankton FA marker became more enriched with distance away from the farm (r2 > 0.37, p < 0.05). The δ13C of mussels was also influenced by location of the farm, regardless of distance from the site. Non-indigenous isotopic signatures, as a result of feed inputs, physical properties of the farm location, and other anthropogenic influences, likely contributed to the depleted signature of mussels and limpets within the vicinity of the farm. This study was the first to use CSIA to determine the uptake and movement of organic nutrients from aquaculture outputs to the surrounding ecosystem.SM ColomboCC ParrishMJ WhiticarInter-ResearcharticleAquaculture. Fisheries. AnglingSH1-691EcologyQH540-549.5ENAquaculture Environment Interactions, Vol 8, Pp 611-617 (2016)
institution	DOAJ
collection	DOAJ
language	EN
topic	Aquaculture. Fisheries. Angling SH1-691 Ecology QH540-549.5
spellingShingle	Aquaculture. Fisheries. Angling SH1-691 Ecology QH540-549.5 SM Colombo CC Parrish MJ Whiticar Fatty acid stable isotope signatures of molluscs exposed to finfish farming outputs
description	Tracing the flow of nutrients from aquaculture operations to the surrounding biota is important for environmental monitoring and developing integrated aquaculture practices. A novel approach in this context, compound specific stable isotope analysis (CSIA) was used to trace fatty acid (FA) carbon in benthic invertebrates from multiple aquaculture sites in the Broughton Archipelago, British Columbia, Canada, up to 2500 m away from each site. We found that the carbon isotope ratios (δ13C) of certain FA in mussels and limpets were gradually 13C-enriched with increasing distance away from the site, suggesting that the farm contributed to more depleted isotopic signatures among organisms within the vicinity of the site. In mussels, the δ13C of 16:2n-4, 16:3n-4, 20:1n-9, 22:6n-3, saturated FA, the bacterial FA marker, and the overall weighted mean of FA became significantly more 13C-enriched with increasing distance from the farm (r2 > 0.28, p < 0.05). In limpets, the δ13C of 17:0, 18:4n-3, 20:4n-3 and the zooplankton FA marker became more enriched with distance away from the farm (r2 > 0.37, p < 0.05). The δ13C of mussels was also influenced by location of the farm, regardless of distance from the site. Non-indigenous isotopic signatures, as a result of feed inputs, physical properties of the farm location, and other anthropogenic influences, likely contributed to the depleted signature of mussels and limpets within the vicinity of the farm. This study was the first to use CSIA to determine the uptake and movement of organic nutrients from aquaculture outputs to the surrounding ecosystem.
format	article
author	SM Colombo CC Parrish MJ Whiticar
author_facet	SM Colombo CC Parrish MJ Whiticar
author_sort	SM Colombo
title	Fatty acid stable isotope signatures of molluscs exposed to finfish farming outputs
title_short	Fatty acid stable isotope signatures of molluscs exposed to finfish farming outputs
title_full	Fatty acid stable isotope signatures of molluscs exposed to finfish farming outputs
title_fullStr	Fatty acid stable isotope signatures of molluscs exposed to finfish farming outputs
title_full_unstemmed	Fatty acid stable isotope signatures of molluscs exposed to finfish farming outputs
title_sort	fatty acid stable isotope signatures of molluscs exposed to finfish farming outputs
publisher	Inter-Research
publishDate	2016
url	https://doaj.org/article/c982e6bf8e2a4d9886110c8d959f5e9f
work_keys_str_mv	AT smcolombo fattyacidstableisotopesignaturesofmolluscsexposedtofinfishfarmingoutputs AT ccparrish fattyacidstableisotopesignaturesofmolluscsexposedtofinfishfarmingoutputs AT mjwhiticar fattyacidstableisotopesignaturesofmolluscsexposedtofinfishfarmingoutputs
_version_	1718439166579048448

Fatty acid stable isotope signatures of molluscs exposed to finfish farming outputs

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