Juvenile production variation in salmonids: population dynamics, habitat, and the role of spatial relationships
Anadromous Atlantic salmon (Salmo salar) exhibit a complex life history that requires the use of habitats that span several different temporal and spatial scales. While fisheries scientists have investigated the various elements of habitat and how they affect Atlantic salmon growth and survival, the...
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Canadian Science Publishing
1998
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Online Access: | http://dx.doi.org/10.1139/d98-015 http://www.nrcresearchpress.com/doi/pdf/10.1139/d98-015 |
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crcansciencepubl:10.1139/d98-015 2024-06-23T07:51:11+00:00 Juvenile production variation in salmonids: population dynamics, habitat, and the role of spatial relationships Kocik, John F Ferreri, C Paola 1998 http://dx.doi.org/10.1139/d98-015 http://www.nrcresearchpress.com/doi/pdf/10.1139/d98-015 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 55, issue S1, page 191-200 ISSN 0706-652X 1205-7533 journal-article 1998 crcansciencepubl https://doi.org/10.1139/d98-015 2024-06-13T04:10:49Z Anadromous Atlantic salmon (Salmo salar) exhibit a complex life history that requires the use of habitats that span several different temporal and spatial scales. While fisheries scientists have investigated the various elements of habitat and how they affect Atlantic salmon growth and survival, these studies typically focus on requisite requirements for a single life history stage. Current advances in our understanding of salmonid populations in lotic systems indicates that ignoring the spatial positioning of different habitats and dispersal capabilities of fish between them may affect estimates of habitat quality and production of juvenile Atlantic salmon. Using the concepts of juxtaposition and interspersion, we hypothesize that discrete functional habitat units (FHU) occur within river systems and that the spatial structure of FHU affects fish production. We present a method to delineate FHU using habitat maps, fish ecology, and spatial habitat characteristics. Utilizing a simulation model, we illustrate how modeling FHU structure of spawning and rearing habitat in a river system can improve our understanding of juvenile Atlantic salmon production dynamics. The FHU concept allows a flexible approach to more comprehensive analyses of the impacts of habitat alterations, seasonal habitat shifts, and spatial ecology of salmonids at various scales. Article in Journal/Newspaper Atlantic salmon Salmo salar Canadian Science Publishing Canadian Journal of Fisheries and Aquatic Sciences 55 S1 191 200 |
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Open Polar |
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Canadian Science Publishing |
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crcansciencepubl |
language |
English |
description |
Anadromous Atlantic salmon (Salmo salar) exhibit a complex life history that requires the use of habitats that span several different temporal and spatial scales. While fisheries scientists have investigated the various elements of habitat and how they affect Atlantic salmon growth and survival, these studies typically focus on requisite requirements for a single life history stage. Current advances in our understanding of salmonid populations in lotic systems indicates that ignoring the spatial positioning of different habitats and dispersal capabilities of fish between them may affect estimates of habitat quality and production of juvenile Atlantic salmon. Using the concepts of juxtaposition and interspersion, we hypothesize that discrete functional habitat units (FHU) occur within river systems and that the spatial structure of FHU affects fish production. We present a method to delineate FHU using habitat maps, fish ecology, and spatial habitat characteristics. Utilizing a simulation model, we illustrate how modeling FHU structure of spawning and rearing habitat in a river system can improve our understanding of juvenile Atlantic salmon production dynamics. The FHU concept allows a flexible approach to more comprehensive analyses of the impacts of habitat alterations, seasonal habitat shifts, and spatial ecology of salmonids at various scales. |
format |
Article in Journal/Newspaper |
author |
Kocik, John F Ferreri, C Paola |
spellingShingle |
Kocik, John F Ferreri, C Paola Juvenile production variation in salmonids: population dynamics, habitat, and the role of spatial relationships |
author_facet |
Kocik, John F Ferreri, C Paola |
author_sort |
Kocik, John F |
title |
Juvenile production variation in salmonids: population dynamics, habitat, and the role of spatial relationships |
title_short |
Juvenile production variation in salmonids: population dynamics, habitat, and the role of spatial relationships |
title_full |
Juvenile production variation in salmonids: population dynamics, habitat, and the role of spatial relationships |
title_fullStr |
Juvenile production variation in salmonids: population dynamics, habitat, and the role of spatial relationships |
title_full_unstemmed |
Juvenile production variation in salmonids: population dynamics, habitat, and the role of spatial relationships |
title_sort |
juvenile production variation in salmonids: population dynamics, habitat, and the role of spatial relationships |
publisher |
Canadian Science Publishing |
publishDate |
1998 |
url |
http://dx.doi.org/10.1139/d98-015 http://www.nrcresearchpress.com/doi/pdf/10.1139/d98-015 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 55, issue S1, page 191-200 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/d98-015 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
55 |
container_issue |
S1 |
container_start_page |
191 |
op_container_end_page |
200 |
_version_ |
1802642208555270144 |