Cross-tributary analysis of parr to smolt recruitment of Atlantic salmon ( Salmo salar )
We used estimates of Atlantic salmon (Salmo salar) parr and smolt density, estimated in three tributaries of the West River, Vermont, U.S.A., to determine (i) if smolt recruitment is density dependent or independent of parr density, (ii) if the proportion of parr migrating as smolts and cohort survi...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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crcansciencepubl:10.1139/f00-093 2023-12-17T10:27:20+01:00 Cross-tributary analysis of parr to smolt recruitment of Atlantic salmon ( Salmo salar ) Whalen, Kevin G Parrish, Donna L Mather, Martha E McMenemy, James R 2000 http://dx.doi.org/10.1139/f00-093 http://www.nrcresearchpress.com/doi/pdf/10.1139/f00-093 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 57, issue 8, page 1607-1616 ISSN 0706-652X 1205-7533 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2000 crcansciencepubl https://doi.org/10.1139/f00-093 2023-11-19T13:39:07Z We used estimates of Atlantic salmon (Salmo salar) parr and smolt density, estimated in three tributaries of the West River, Vermont, U.S.A., to determine (i) if smolt recruitment is density dependent or independent of parr density, (ii) if the proportion of parr migrating as smolts and cohort survival differ among tributaries, and (iii) the effect of parr maturity on smolt production and recruitment variability. We found that parr to smolt recruitment was best described with a linear function providing no evidence for density dependence in the recruitment dynamics of parr and smolts at the tributary scale. The proportion of age-1 parr recruiting to age-2 smolts did not systematically differ among tributaries or years (overall mean ± 95% CL: 18 ± 11%, range = 9-37%), and mean age-1 to age-2 survival ranged less than twofold among tributaries (27-46%) and was independent of cohort density. Survival of age-1 mature (39%) and immature (33%) parr was similar, but probability of smolting for mature parr (0.21) was threefold less than for immature parr (0.76). Quantifying smolt recruitment pathways involving parr maturation helped elucidate the population-level effect of parr maturation on smolt production and recruitment variability. Article in Journal/Newspaper Atlantic salmon Salmo salar Canadian Science Publishing (via Crossref) Canadian Journal of Fisheries and Aquatic Sciences 57 8 1607 1616 |
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 Whalen, Kevin G Parrish, Donna L Mather, Martha E McMenemy, James R Cross-tributary analysis of parr to smolt recruitment of Atlantic salmon ( Salmo salar ) |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
We used estimates of Atlantic salmon (Salmo salar) parr and smolt density, estimated in three tributaries of the West River, Vermont, U.S.A., to determine (i) if smolt recruitment is density dependent or independent of parr density, (ii) if the proportion of parr migrating as smolts and cohort survival differ among tributaries, and (iii) the effect of parr maturity on smolt production and recruitment variability. We found that parr to smolt recruitment was best described with a linear function providing no evidence for density dependence in the recruitment dynamics of parr and smolts at the tributary scale. The proportion of age-1 parr recruiting to age-2 smolts did not systematically differ among tributaries or years (overall mean ± 95% CL: 18 ± 11%, range = 9-37%), and mean age-1 to age-2 survival ranged less than twofold among tributaries (27-46%) and was independent of cohort density. Survival of age-1 mature (39%) and immature (33%) parr was similar, but probability of smolting for mature parr (0.21) was threefold less than for immature parr (0.76). Quantifying smolt recruitment pathways involving parr maturation helped elucidate the population-level effect of parr maturation on smolt production and recruitment variability. |
format |
Article in Journal/Newspaper |
author |
Whalen, Kevin G Parrish, Donna L Mather, Martha E McMenemy, James R |
author_facet |
Whalen, Kevin G Parrish, Donna L Mather, Martha E McMenemy, James R |
author_sort |
Whalen, Kevin G |
title |
Cross-tributary analysis of parr to smolt recruitment of Atlantic salmon ( Salmo salar ) |
title_short |
Cross-tributary analysis of parr to smolt recruitment of Atlantic salmon ( Salmo salar ) |
title_full |
Cross-tributary analysis of parr to smolt recruitment of Atlantic salmon ( Salmo salar ) |
title_fullStr |
Cross-tributary analysis of parr to smolt recruitment of Atlantic salmon ( Salmo salar ) |
title_full_unstemmed |
Cross-tributary analysis of parr to smolt recruitment of Atlantic salmon ( Salmo salar ) |
title_sort |
cross-tributary analysis of parr to smolt recruitment of atlantic salmon ( salmo salar ) |
publisher |
Canadian Science Publishing |
publishDate |
2000 |
url |
http://dx.doi.org/10.1139/f00-093 http://www.nrcresearchpress.com/doi/pdf/10.1139/f00-093 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 57, issue 8, page 1607-1616 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f00-093 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
57 |
container_issue |
8 |
container_start_page |
1607 |
op_container_end_page |
1616 |
_version_ |
1785579165282467840 |