Mass marking farmed Atlantic salmon with transgenerational isotopic fingerprints to trace farm fish escapees

Farmed fish sometimes escape and enter natural environments, where they mix with wild fish populations and can have negative effects. Marking farmed fish is a prerequisite for the identification of the origin of escapees and for guiding technical investigations to determine the cause of an escape ev...

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Autores principales:	F Warren-Myers, T Dempster, PG Fjelldal, T Hansen, SE Swearer
Formato:	article
Lenguaje:	EN
Publicado:	Inter-Research 2015
Materias:	Aquaculture. Fisheries. Angling SH1-691 Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/6dff034c7bb345ee9b3de85ea7aa41fd
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spelling	oai:doaj.org-article:6dff034c7bb345ee9b3de85ea7aa41fd2021-11-16T09:41:51ZMass marking farmed Atlantic salmon with transgenerational isotopic fingerprints to trace farm fish escapees1869-215X1869-753410.3354/aei00139https://doaj.org/article/6dff034c7bb345ee9b3de85ea7aa41fd2015-08-01T00:00:00Zhttps://www.int-res.com/abstracts/aei/v7/n1/p75-87/https://doaj.org/toc/1869-215Xhttps://doaj.org/toc/1869-7534Farmed fish sometimes escape and enter natural environments, where they mix with wild fish populations and can have negative effects. Marking farmed fish is a prerequisite for the identification of the origin of escapees and for guiding technical investigations to determine the cause of an escape event and improve farming practices. We tested transgenerational marking with enriched stable isotopes to assess its effectiveness as an accurate, feasible and cost-effective marking method for Atlantic salmon Salmo salar grown in sea-cage aquaculture. We injected a combination of 7 stable isotopes (134Ba, 135Ba, 136Ba, 137Ba, 86Sr, 87Sr and 26Mg) at 4 different concentrations (2, 0.2, 0.02 and 0.002 µg g-1 broodfish) into the abdominal cavity of female Atlantic salmon broodstock. Marking success was assessed in the otoliths of the resulting yolk sac larvae using laser ablation inductively coupled plasma mass spectrometry. Marking was 100% successful with Ba isotopes at concentrations as low as 0.002 µg and for Sr isotopes at 2 µg, when at least 3 wk had passed between the day of injection and spawning. Our results demonstrate that 63 unique fingerprint marks can be made at a low cost using enriched isotopes of Ba (US$0.0002-0.002 mark-1) and Sr (US$0.05-0.13 mark-1). Compared to other mass marking techniques, transgenerational marking of farmed salmon is an economically feasible method for tracing escapees with similarly low costs to delivery by egg bathing or vaccines, and an order of magnitude or more lower than other conventional marking methods.F Warren-MyersT DempsterPG FjelldalT HansenSE SwearerInter-ResearcharticleAquaculture. Fisheries. AnglingSH1-691EcologyQH540-549.5ENAquaculture Environment Interactions, Vol 7, Iss 1, Pp 75-87 (2015)
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 F Warren-Myers T Dempster PG Fjelldal T Hansen SE Swearer Mass marking farmed Atlantic salmon with transgenerational isotopic fingerprints to trace farm fish escapees
description	Farmed fish sometimes escape and enter natural environments, where they mix with wild fish populations and can have negative effects. Marking farmed fish is a prerequisite for the identification of the origin of escapees and for guiding technical investigations to determine the cause of an escape event and improve farming practices. We tested transgenerational marking with enriched stable isotopes to assess its effectiveness as an accurate, feasible and cost-effective marking method for Atlantic salmon Salmo salar grown in sea-cage aquaculture. We injected a combination of 7 stable isotopes (134Ba, 135Ba, 136Ba, 137Ba, 86Sr, 87Sr and 26Mg) at 4 different concentrations (2, 0.2, 0.02 and 0.002 µg g-1 broodfish) into the abdominal cavity of female Atlantic salmon broodstock. Marking success was assessed in the otoliths of the resulting yolk sac larvae using laser ablation inductively coupled plasma mass spectrometry. Marking was 100% successful with Ba isotopes at concentrations as low as 0.002 µg and for Sr isotopes at 2 µg, when at least 3 wk had passed between the day of injection and spawning. Our results demonstrate that 63 unique fingerprint marks can be made at a low cost using enriched isotopes of Ba (US$0.0002-0.002 mark-1) and Sr (US$0.05-0.13 mark-1). Compared to other mass marking techniques, transgenerational marking of farmed salmon is an economically feasible method for tracing escapees with similarly low costs to delivery by egg bathing or vaccines, and an order of magnitude or more lower than other conventional marking methods.
format	article
author	F Warren-Myers T Dempster PG Fjelldal T Hansen SE Swearer
author_facet	F Warren-Myers T Dempster PG Fjelldal T Hansen SE Swearer
author_sort	F Warren-Myers
title	Mass marking farmed Atlantic salmon with transgenerational isotopic fingerprints to trace farm fish escapees
title_short	Mass marking farmed Atlantic salmon with transgenerational isotopic fingerprints to trace farm fish escapees
title_full	Mass marking farmed Atlantic salmon with transgenerational isotopic fingerprints to trace farm fish escapees
title_fullStr	Mass marking farmed Atlantic salmon with transgenerational isotopic fingerprints to trace farm fish escapees
title_full_unstemmed	Mass marking farmed Atlantic salmon with transgenerational isotopic fingerprints to trace farm fish escapees
title_sort	mass marking farmed atlantic salmon with transgenerational isotopic fingerprints to trace farm fish escapees
publisher	Inter-Research
publishDate	2015
url	https://doaj.org/article/6dff034c7bb345ee9b3de85ea7aa41fd
work_keys_str_mv	AT fwarrenmyers massmarkingfarmedatlanticsalmonwithtransgenerationalisotopicfingerprintstotracefarmfishescapees AT tdempster massmarkingfarmedatlanticsalmonwithtransgenerationalisotopicfingerprintstotracefarmfishescapees AT pgfjelldal massmarkingfarmedatlanticsalmonwithtransgenerationalisotopicfingerprintstotracefarmfishescapees AT thansen massmarkingfarmedatlanticsalmonwithtransgenerationalisotopicfingerprintstotracefarmfishescapees AT seswearer massmarkingfarmedatlanticsalmonwithtransgenerationalisotopicfingerprintstotracefarmfishescapees
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Mass marking farmed Atlantic salmon with transgenerational isotopic fingerprints to trace farm fish escapees

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