Food web incorporation of marine-derived nutrients after the reintroduction of endangered inner Bay of Fundy Atlantic salmon ( Salmo salar )
Inner Bay of Fundy Atlantic salmon (Salmo salar) are endangered anadromous fish that have the potential to provide marine-derived nutrients (MDNs) to freshwater ecosystems depending on their population abundance. Salmon have been reintroduced to the Upper Salmon River, but not to the adjacent Point...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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2022
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Online Access: | http://dx.doi.org/10.1139/cjfas-2020-0326 https://cdnsciencepub.com/doi/full-xml/10.1139/cjfas-2020-0326 https://cdnsciencepub.com/doi/pdf/10.1139/cjfas-2020-0326 |
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crcansciencepubl:10.1139/cjfas-2020-0326 2023-12-17T10:27:21+01:00 Food web incorporation of marine-derived nutrients after the reintroduction of endangered inner Bay of Fundy Atlantic salmon ( Salmo salar ) Bryson, Grace E. Kidd, Karen A. Samways, Kurt M. 2022 http://dx.doi.org/10.1139/cjfas-2020-0326 https://cdnsciencepub.com/doi/full-xml/10.1139/cjfas-2020-0326 https://cdnsciencepub.com/doi/pdf/10.1139/cjfas-2020-0326 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 79, issue 6, page 875-882 ISSN 0706-652X 1205-7533 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2022 crcansciencepubl https://doi.org/10.1139/cjfas-2020-0326 2023-11-19T13:38:22Z Inner Bay of Fundy Atlantic salmon (Salmo salar) are endangered anadromous fish that have the potential to provide marine-derived nutrients (MDNs) to freshwater ecosystems depending on their population abundance. Salmon have been reintroduced to the Upper Salmon River, but not to the adjacent Point Wolfe River, in Fundy National Park, New Brunswick, Canada. This study determined whether stocking of adult salmon increased the productivity of the river. To examine the incorporation of MDNs, biofilm, leaf litter, Perlidae, Heptageniidae and brook trout (Salvelinus fontinalis) were sampled pre- and post-spawning in 2015–2017 from down- and upstream of a natural barrier in both rivers and analyzed for carbon (δ 13 C) and nitrogen (δ 15 N) isotopes. After salmon spawning in each year, all organisms at the downstream site of the stocked river increased in δ 13 C and δ 15 N, with the greatest enrichment in brook trout (δ 13 C: −23.97‰ to −21.10‰, δ 15 N: +6.36‰ to +10.73‰). The proportion of MDNs in brook trout after salmon spawning (2015: 23.4%, 2016: 40.7%, 2017: 37.4%) also increased with higher numbers of released adult salmon. Results support the importance of salmon restoration for increasing the proportion of MDNs and productivity in rivers in Atlantic Canada. Article in Journal/Newspaper Atlantic salmon Salmo salar Canadian Science Publishing (via Crossref) Canada Inner Bay ENVELOPE(-37.967,-37.967,-54.017,-54.017) Canadian Journal of Fisheries and Aquatic Sciences |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Bryson, Grace E. Kidd, Karen A. Samways, Kurt M. Food web incorporation of marine-derived nutrients after the reintroduction of endangered inner Bay of Fundy Atlantic salmon ( Salmo salar ) |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Inner Bay of Fundy Atlantic salmon (Salmo salar) are endangered anadromous fish that have the potential to provide marine-derived nutrients (MDNs) to freshwater ecosystems depending on their population abundance. Salmon have been reintroduced to the Upper Salmon River, but not to the adjacent Point Wolfe River, in Fundy National Park, New Brunswick, Canada. This study determined whether stocking of adult salmon increased the productivity of the river. To examine the incorporation of MDNs, biofilm, leaf litter, Perlidae, Heptageniidae and brook trout (Salvelinus fontinalis) were sampled pre- and post-spawning in 2015–2017 from down- and upstream of a natural barrier in both rivers and analyzed for carbon (δ 13 C) and nitrogen (δ 15 N) isotopes. After salmon spawning in each year, all organisms at the downstream site of the stocked river increased in δ 13 C and δ 15 N, with the greatest enrichment in brook trout (δ 13 C: −23.97‰ to −21.10‰, δ 15 N: +6.36‰ to +10.73‰). The proportion of MDNs in brook trout after salmon spawning (2015: 23.4%, 2016: 40.7%, 2017: 37.4%) also increased with higher numbers of released adult salmon. Results support the importance of salmon restoration for increasing the proportion of MDNs and productivity in rivers in Atlantic Canada. |
format |
Article in Journal/Newspaper |
author |
Bryson, Grace E. Kidd, Karen A. Samways, Kurt M. |
author_facet |
Bryson, Grace E. Kidd, Karen A. Samways, Kurt M. |
author_sort |
Bryson, Grace E. |
title |
Food web incorporation of marine-derived nutrients after the reintroduction of endangered inner Bay of Fundy Atlantic salmon ( Salmo salar ) |
title_short |
Food web incorporation of marine-derived nutrients after the reintroduction of endangered inner Bay of Fundy Atlantic salmon ( Salmo salar ) |
title_full |
Food web incorporation of marine-derived nutrients after the reintroduction of endangered inner Bay of Fundy Atlantic salmon ( Salmo salar ) |
title_fullStr |
Food web incorporation of marine-derived nutrients after the reintroduction of endangered inner Bay of Fundy Atlantic salmon ( Salmo salar ) |
title_full_unstemmed |
Food web incorporation of marine-derived nutrients after the reintroduction of endangered inner Bay of Fundy Atlantic salmon ( Salmo salar ) |
title_sort |
food web incorporation of marine-derived nutrients after the reintroduction of endangered inner bay of fundy atlantic salmon ( salmo salar ) |
publisher |
Canadian Science Publishing |
publishDate |
2022 |
url |
http://dx.doi.org/10.1139/cjfas-2020-0326 https://cdnsciencepub.com/doi/full-xml/10.1139/cjfas-2020-0326 https://cdnsciencepub.com/doi/pdf/10.1139/cjfas-2020-0326 |
long_lat |
ENVELOPE(-37.967,-37.967,-54.017,-54.017) |
geographic |
Canada Inner Bay |
geographic_facet |
Canada Inner Bay |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 79, issue 6, page 875-882 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/cjfas-2020-0326 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
_version_ |
1785579195095580672 |