Effects of silt and very fine sand dynamics in Atlantic salmon ( Salmo salar ) redds on embryo hatching success
We conducted a 2-year field experiment examining the survival to hatching of Atlantic salmon (Salmo salar) in relation to the seasonal and spatial variations of silt and very fine sand (SVFS; <0.125 mm) content within a large set of artificial redds at two spawning sites of the Sainte-Marguerite...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Online Access: | http://dx.doi.org/10.1139/f06-050 http://www.nrcresearchpress.com/doi/pdf/10.1139/f06-050 |
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crcansciencepubl:10.1139/f06-050 2024-04-28T08:13:17+00:00 Effects of silt and very fine sand dynamics in Atlantic salmon ( Salmo salar ) redds on embryo hatching success Levasseur, Mylène Bergeron, Normand E Lapointe, Michel F Bérubé, Francis 2006 http://dx.doi.org/10.1139/f06-050 http://www.nrcresearchpress.com/doi/pdf/10.1139/f06-050 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 63, issue 7, page 1450-1459 ISSN 0706-652X 1205-7533 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2006 crcansciencepubl https://doi.org/10.1139/f06-050 2024-04-02T06:55:52Z We conducted a 2-year field experiment examining the survival to hatching of Atlantic salmon (Salmo salar) in relation to the seasonal and spatial variations of silt and very fine sand (SVFS; <0.125 mm) content within a large set of artificial redds at two spawning sites of the Sainte-Marguerite River, Quebec, Canada. Each artificial redd consisted of an infiltration cube (30 cm × 30 cm × 20 cm) buried in a morpho-sedimentological unit resembling a salmon redd. One hundred fertilized Atlantic salmon eggs were inserted in a number of infiltration cubes during redd construction. The results indicate no significant relation between survival to hatching in spring and values of the sand index or total percent fine sediment <2 mm in redds at that time. However, the proportion of SVFS in the redds explained 83% of the variation in embryo survival, with a threshold at approximately 0.2% SVFS, above which survival dropped sharply below 50%. Infiltration of these very fine fractions mostly occurred under ice cover, during the low-flow winter period. However, during the spring flood period, infiltration-flushing patterns varied spatially and reflected spatial differences in local intensity of bed-load transport and fine sediment availability. Article in Journal/Newspaper Atlantic salmon Salmo salar Canadian Science Publishing Canadian Journal of Fisheries and Aquatic Sciences 63 7 1450 1459 |
institution |
Open Polar |
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Canadian Science Publishing |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Levasseur, Mylène Bergeron, Normand E Lapointe, Michel F Bérubé, Francis Effects of silt and very fine sand dynamics in Atlantic salmon ( Salmo salar ) redds on embryo hatching success |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
We conducted a 2-year field experiment examining the survival to hatching of Atlantic salmon (Salmo salar) in relation to the seasonal and spatial variations of silt and very fine sand (SVFS; <0.125 mm) content within a large set of artificial redds at two spawning sites of the Sainte-Marguerite River, Quebec, Canada. Each artificial redd consisted of an infiltration cube (30 cm × 30 cm × 20 cm) buried in a morpho-sedimentological unit resembling a salmon redd. One hundred fertilized Atlantic salmon eggs were inserted in a number of infiltration cubes during redd construction. The results indicate no significant relation between survival to hatching in spring and values of the sand index or total percent fine sediment <2 mm in redds at that time. However, the proportion of SVFS in the redds explained 83% of the variation in embryo survival, with a threshold at approximately 0.2% SVFS, above which survival dropped sharply below 50%. Infiltration of these very fine fractions mostly occurred under ice cover, during the low-flow winter period. However, during the spring flood period, infiltration-flushing patterns varied spatially and reflected spatial differences in local intensity of bed-load transport and fine sediment availability. |
format |
Article in Journal/Newspaper |
author |
Levasseur, Mylène Bergeron, Normand E Lapointe, Michel F Bérubé, Francis |
author_facet |
Levasseur, Mylène Bergeron, Normand E Lapointe, Michel F Bérubé, Francis |
author_sort |
Levasseur, Mylène |
title |
Effects of silt and very fine sand dynamics in Atlantic salmon ( Salmo salar ) redds on embryo hatching success |
title_short |
Effects of silt and very fine sand dynamics in Atlantic salmon ( Salmo salar ) redds on embryo hatching success |
title_full |
Effects of silt and very fine sand dynamics in Atlantic salmon ( Salmo salar ) redds on embryo hatching success |
title_fullStr |
Effects of silt and very fine sand dynamics in Atlantic salmon ( Salmo salar ) redds on embryo hatching success |
title_full_unstemmed |
Effects of silt and very fine sand dynamics in Atlantic salmon ( Salmo salar ) redds on embryo hatching success |
title_sort |
effects of silt and very fine sand dynamics in atlantic salmon ( salmo salar ) redds on embryo hatching success |
publisher |
Canadian Science Publishing |
publishDate |
2006 |
url |
http://dx.doi.org/10.1139/f06-050 http://www.nrcresearchpress.com/doi/pdf/10.1139/f06-050 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 63, issue 7, page 1450-1459 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f06-050 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
63 |
container_issue |
7 |
container_start_page |
1450 |
op_container_end_page |
1459 |
_version_ |
1797579855888384000 |