Atlantic salmon (Salmo salar) smolt and early post-smolt migration and survival inferred from multi-year and multi-stock acoustic telemetry studies in the Gulf of St. Lawrence, northwest Atlantic
Abstract The migration dynamics and inter-annual variation in early at-sea survival of Atlantic salmon (Salmo salar) smolts over 14 years of study are reported for four river populations located in the Gulf of St. Lawrence (Canada). Acoustically tagged smolts were monitored at three points along the...
Published in: | ICES Journal of Marine Science |
---|---|
Main Authors: | , , , , , |
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Oxford University Press (OUP)
2018
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1093/icesjms/fsy156 http://academic.oup.com/icesjms/article-pdf/76/4/1107/31238675/fsy156.pdf |
id |
croxfordunivpr:10.1093/icesjms/fsy156 |
---|---|
record_format |
openpolar |
spelling |
croxfordunivpr:10.1093/icesjms/fsy156 2024-06-23T07:51:21+00:00 Atlantic salmon (Salmo salar) smolt and early post-smolt migration and survival inferred from multi-year and multi-stock acoustic telemetry studies in the Gulf of St. Lawrence, northwest Atlantic Chaput, Gérald Carr, Jonathan Daniels, Jason Tinker, Steve Jonsen, Ian Whoriskey, Frederick Durif, Caroline 2018 http://dx.doi.org/10.1093/icesjms/fsy156 http://academic.oup.com/icesjms/article-pdf/76/4/1107/31238675/fsy156.pdf en eng Oxford University Press (OUP) http://creativecommons.org/licenses/by/4.0/ ICES Journal of Marine Science volume 76, issue 4, page 1107-1121 ISSN 1054-3139 1095-9289 journal-article 2018 croxfordunivpr https://doi.org/10.1093/icesjms/fsy156 2024-06-11T04:21:45Z Abstract The migration dynamics and inter-annual variation in early at-sea survival of Atlantic salmon (Salmo salar) smolts over 14 years of study are reported for four river populations located in the Gulf of St. Lawrence (Canada). Acoustically tagged smolts were monitored at three points along their migration from freshwater to the Labrador Sea, a migration extending more than 800 km at sea and a period of 2 months. A hierarchical state-space version of the Cormack–Jolly–Seber model was used to estimate apparent survival rates from incomplete acoustic detections at key points. There was a positive size-dependent probability of survival through the freshwater and estuary areas; the odds of survival of a 16 cm smolt were 1.5–1.7 times higher than for a 13.5 cm smolt, length at tagging. Length adjusted (centred to the mean fork length of smolts during the study of 14.6 cm) survivals through the estuary and nearshore waters were estimated to range between 67 and 90% for the two river populations migrating through Chaleur Bay in contrast to lower survival estimates of 28–82% for the two populations from the neighbouring Miramichi Bay. Across the 14 years of study, survival estimates varied without trend for the populations of Chaleur Bay, but declined for the populations migrating through Miramichi Bay. Survival through the Gulf of St. Lawrence was variable but generally high among years and rivers, ranging from 96% day−1 to 99% day−1. Long term, replicated studies at multiple sites using acoustically tagged smolts can provide empirical data to examine hypotheses of the location and timing of factors contributing to smolt and post-smolt mortality of salmon at sea. Article in Journal/Newspaper Atlantic salmon Labrador Sea Northwest Atlantic Salmo salar Oxford University Press Canada ICES Journal of Marine Science 76 4 1107 1121 |
institution |
Open Polar |
collection |
Oxford University Press |
op_collection_id |
croxfordunivpr |
language |
English |
description |
Abstract The migration dynamics and inter-annual variation in early at-sea survival of Atlantic salmon (Salmo salar) smolts over 14 years of study are reported for four river populations located in the Gulf of St. Lawrence (Canada). Acoustically tagged smolts were monitored at three points along their migration from freshwater to the Labrador Sea, a migration extending more than 800 km at sea and a period of 2 months. A hierarchical state-space version of the Cormack–Jolly–Seber model was used to estimate apparent survival rates from incomplete acoustic detections at key points. There was a positive size-dependent probability of survival through the freshwater and estuary areas; the odds of survival of a 16 cm smolt were 1.5–1.7 times higher than for a 13.5 cm smolt, length at tagging. Length adjusted (centred to the mean fork length of smolts during the study of 14.6 cm) survivals through the estuary and nearshore waters were estimated to range between 67 and 90% for the two river populations migrating through Chaleur Bay in contrast to lower survival estimates of 28–82% for the two populations from the neighbouring Miramichi Bay. Across the 14 years of study, survival estimates varied without trend for the populations of Chaleur Bay, but declined for the populations migrating through Miramichi Bay. Survival through the Gulf of St. Lawrence was variable but generally high among years and rivers, ranging from 96% day−1 to 99% day−1. Long term, replicated studies at multiple sites using acoustically tagged smolts can provide empirical data to examine hypotheses of the location and timing of factors contributing to smolt and post-smolt mortality of salmon at sea. |
author2 |
Durif, Caroline |
format |
Article in Journal/Newspaper |
author |
Chaput, Gérald Carr, Jonathan Daniels, Jason Tinker, Steve Jonsen, Ian Whoriskey, Frederick |
spellingShingle |
Chaput, Gérald Carr, Jonathan Daniels, Jason Tinker, Steve Jonsen, Ian Whoriskey, Frederick Atlantic salmon (Salmo salar) smolt and early post-smolt migration and survival inferred from multi-year and multi-stock acoustic telemetry studies in the Gulf of St. Lawrence, northwest Atlantic |
author_facet |
Chaput, Gérald Carr, Jonathan Daniels, Jason Tinker, Steve Jonsen, Ian Whoriskey, Frederick |
author_sort |
Chaput, Gérald |
title |
Atlantic salmon (Salmo salar) smolt and early post-smolt migration and survival inferred from multi-year and multi-stock acoustic telemetry studies in the Gulf of St. Lawrence, northwest Atlantic |
title_short |
Atlantic salmon (Salmo salar) smolt and early post-smolt migration and survival inferred from multi-year and multi-stock acoustic telemetry studies in the Gulf of St. Lawrence, northwest Atlantic |
title_full |
Atlantic salmon (Salmo salar) smolt and early post-smolt migration and survival inferred from multi-year and multi-stock acoustic telemetry studies in the Gulf of St. Lawrence, northwest Atlantic |
title_fullStr |
Atlantic salmon (Salmo salar) smolt and early post-smolt migration and survival inferred from multi-year and multi-stock acoustic telemetry studies in the Gulf of St. Lawrence, northwest Atlantic |
title_full_unstemmed |
Atlantic salmon (Salmo salar) smolt and early post-smolt migration and survival inferred from multi-year and multi-stock acoustic telemetry studies in the Gulf of St. Lawrence, northwest Atlantic |
title_sort |
atlantic salmon (salmo salar) smolt and early post-smolt migration and survival inferred from multi-year and multi-stock acoustic telemetry studies in the gulf of st. lawrence, northwest atlantic |
publisher |
Oxford University Press (OUP) |
publishDate |
2018 |
url |
http://dx.doi.org/10.1093/icesjms/fsy156 http://academic.oup.com/icesjms/article-pdf/76/4/1107/31238675/fsy156.pdf |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Atlantic salmon Labrador Sea Northwest Atlantic Salmo salar |
genre_facet |
Atlantic salmon Labrador Sea Northwest Atlantic Salmo salar |
op_source |
ICES Journal of Marine Science volume 76, issue 4, page 1107-1121 ISSN 1054-3139 1095-9289 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1093/icesjms/fsy156 |
container_title |
ICES Journal of Marine Science |
container_volume |
76 |
container_issue |
4 |
container_start_page |
1107 |
op_container_end_page |
1121 |
_version_ |
1802642427280883712 |