Immersion during egg swelling results in rapid uptake of stable isotope markers in salmonid otoliths
Determining the value of restocking wild fisheries with hatchery-reared fish requires the ability to identify and quantify the survival of hatchery fish after release. However, to obtain accurate estimates of survival rates, multiple fish identification techniques are often used, making the monitori...
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ftdeakinunifig:oai:figshare.com:article/25009280 2024-06-23T07:51:24+00:00 Immersion during egg swelling results in rapid uptake of stable isotope markers in salmonid otoliths F Warren-Myers Tim Dempster PG Fjelldal T Hansen SE Swearer 2015-05-01T00:00:00Z http://hdl.handle.net/10779/DRO/DU:25009280.v2 https://figshare.com/articles/journal_contribution/Immersion_during_egg_swelling_results_in_rapid_uptake_of_stable_isotope_markers_in_salmonid_otoliths/25009280 unknown http://hdl.handle.net/10779/DRO/DU:25009280.v2 https://figshare.com/articles/journal_contribution/Immersion_during_egg_swelling_results_in_rapid_uptake_of_stable_isotope_markers_in_salmonid_otoliths/25009280 All Rights Reserved Agricultural veterinary and food sciences Fisheries sciences Ecology Zoology Uncategorised value Text Journal contribution 2015 ftdeakinunifig 2024-06-06T02:06:46Z Determining the value of restocking wild fisheries with hatchery-reared fish requires the ability to identify and quantify the survival of hatchery fish after release. However, to obtain accurate estimates of survival rates, multiple fish identification techniques are often used, making the monitoring of restocking inefficient and costly. Here we test a new immersion marking method to determine its efficiency and cost effectiveness for marking millions of hatchery-reared Atlantic salmon (Salmo salar). Salmon eggs were marked during the egg swelling stage by immersing eggs in a solution containing seven enriched stable isotopes (134Ba, 135Ba, 136Ba, 137Ba, 86Sr, 87Sr, and 26Mg) for 2 h immediately after fertilisation. One hundred percent successful marks were detected in the otoliths of resulting larvae at a concentration of 1000 μg·L−1 for 136Ba and 100 μg·L−1 for 135Ba and 137Ba, with no detrimental effects on survival or health of egg and yolk sac larvae. We estimate that seven unique mark combinations can be made at a cost of $0.0001 to $0.0017 (US) per egg and conclude that marking via egg immersion is suitable for low cost, accurate marking of hatchery-reared salmonids destined for restocking purposes. Article in Journal/Newspaper Atlantic salmon Salmo salar DRO - Deakin Research Online |
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Open Polar |
collection |
DRO - Deakin Research Online |
op_collection_id |
ftdeakinunifig |
language |
unknown |
topic |
Agricultural veterinary and food sciences Fisheries sciences Ecology Zoology Uncategorised value |
spellingShingle |
Agricultural veterinary and food sciences Fisheries sciences Ecology Zoology Uncategorised value F Warren-Myers Tim Dempster PG Fjelldal T Hansen SE Swearer Immersion during egg swelling results in rapid uptake of stable isotope markers in salmonid otoliths |
topic_facet |
Agricultural veterinary and food sciences Fisheries sciences Ecology Zoology Uncategorised value |
description |
Determining the value of restocking wild fisheries with hatchery-reared fish requires the ability to identify and quantify the survival of hatchery fish after release. However, to obtain accurate estimates of survival rates, multiple fish identification techniques are often used, making the monitoring of restocking inefficient and costly. Here we test a new immersion marking method to determine its efficiency and cost effectiveness for marking millions of hatchery-reared Atlantic salmon (Salmo salar). Salmon eggs were marked during the egg swelling stage by immersing eggs in a solution containing seven enriched stable isotopes (134Ba, 135Ba, 136Ba, 137Ba, 86Sr, 87Sr, and 26Mg) for 2 h immediately after fertilisation. One hundred percent successful marks were detected in the otoliths of resulting larvae at a concentration of 1000 μg·L−1 for 136Ba and 100 μg·L−1 for 135Ba and 137Ba, with no detrimental effects on survival or health of egg and yolk sac larvae. We estimate that seven unique mark combinations can be made at a cost of $0.0001 to $0.0017 (US) per egg and conclude that marking via egg immersion is suitable for low cost, accurate marking of hatchery-reared salmonids destined for restocking purposes. |
format |
Article in Journal/Newspaper |
author |
F Warren-Myers Tim Dempster PG Fjelldal T Hansen SE Swearer |
author_facet |
F Warren-Myers Tim Dempster PG Fjelldal T Hansen SE Swearer |
author_sort |
F Warren-Myers |
title |
Immersion during egg swelling results in rapid uptake of stable isotope markers in salmonid otoliths |
title_short |
Immersion during egg swelling results in rapid uptake of stable isotope markers in salmonid otoliths |
title_full |
Immersion during egg swelling results in rapid uptake of stable isotope markers in salmonid otoliths |
title_fullStr |
Immersion during egg swelling results in rapid uptake of stable isotope markers in salmonid otoliths |
title_full_unstemmed |
Immersion during egg swelling results in rapid uptake of stable isotope markers in salmonid otoliths |
title_sort |
immersion during egg swelling results in rapid uptake of stable isotope markers in salmonid otoliths |
publishDate |
2015 |
url |
http://hdl.handle.net/10779/DRO/DU:25009280.v2 https://figshare.com/articles/journal_contribution/Immersion_during_egg_swelling_results_in_rapid_uptake_of_stable_isotope_markers_in_salmonid_otoliths/25009280 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_relation |
http://hdl.handle.net/10779/DRO/DU:25009280.v2 https://figshare.com/articles/journal_contribution/Immersion_during_egg_swelling_results_in_rapid_uptake_of_stable_isotope_markers_in_salmonid_otoliths/25009280 |
op_rights |
All Rights Reserved |
_version_ |
1802642480916594688 |