Monitoring fish populations in river SACs

The EU Habitats Directive (92/43/EEC) on Conservation of Natural Habitats and of Wild Fauna and Flora stipulates that Member states maintain or restore habitats and species in a condition that ensures their favourable conservation status in the community. To comply with this Directive requires asses...

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Main Authors: Noble, Richard A., Nunn, Andrew D., Harvey, Jonathan P., Cowx, Ian G.
Format: Book Part
Language:English
Published: 2009
Subjects:
Online Access:https://hull-repository.worktribe.com/output/409509
https://doi.org/10.1007/978-1-4020-9278-7_6
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spelling ftunivhullir:oai:hull-repository.worktribe.com:409509 2024-09-15T17:56:29+00:00 Monitoring fish populations in river SACs Noble, Richard A. Nunn, Andrew D. Harvey, Jonathan P. Cowx, Ian G. 2009-10-10 https://hull-repository.worktribe.com/output/409509 https://doi.org/10.1007/978-1-4020-9278-7_6 English eng https://hull-repository.worktribe.com/output/409509 Pagination 53-62 doi:https://doi.org/10.1007/978-1-4020-9278-7_6 9781402092770; 9781402092787 doi:10.1007/978-1-4020-9278-7_6 Condition assessment Fish stocks Lampreys Bullheads Salmon Shad SAC rivers Book Chapter 2009 ftunivhullir https://doi.org/10.1007/978-1-4020-9278-7_6 2024-07-22T14:05:20Z The EU Habitats Directive (92/43/EEC) on Conservation of Natural Habitats and of Wild Fauna and Flora stipulates that Member states maintain or restore habitats and species in a condition that ensures their favourable conservation status in the community. To comply with this Directive requires assessment of the conservation status of aquatic species in rivers designated as Special Areas of Conservations (SACs) against a predetermined set of objectives. This paper describes the protocols developed to determine the condition status of lampreys, bullheads, shad and Atlantic salmon in SAC rivers in the UK. Two strategies are proposed for assessment of favourable conservation status of fish species of in SAC rivers. The first approach classifies the extant density of fish of various life stages against pre-set targets and the second examines the demographic structure of the population, i.e. the contribution of juveniles to the population, to demonstrate recruitment success. To achieve favourable conservation status, where abundant, the fish population should consist of a pre-determined proportion of young of the year or juvenile age classes. Further assessment of the status can be derived from mapping the distribution of the target species in individual SAC rivers. Favourable conservation status should be recorded if there is no decline in distribution from the current, or where available, historical pattern. Reasons for not achieving favourable condition status should be determined from environmental and physiochemical data collected in conjunction with the fisheries surveys. © Springer Science+Business Media B.V. 2010. Book Part Atlantic salmon University of Hull: Repository@Hull 53 62 Dordrecht
institution Open Polar
collection University of Hull: Repository@Hull
op_collection_id ftunivhullir
language English
topic Condition assessment
Fish stocks
Lampreys
Bullheads
Salmon
Shad
SAC rivers
spellingShingle Condition assessment
Fish stocks
Lampreys
Bullheads
Salmon
Shad
SAC rivers
Noble, Richard A.
Nunn, Andrew D.
Harvey, Jonathan P.
Cowx, Ian G.
Monitoring fish populations in river SACs
topic_facet Condition assessment
Fish stocks
Lampreys
Bullheads
Salmon
Shad
SAC rivers
description The EU Habitats Directive (92/43/EEC) on Conservation of Natural Habitats and of Wild Fauna and Flora stipulates that Member states maintain or restore habitats and species in a condition that ensures their favourable conservation status in the community. To comply with this Directive requires assessment of the conservation status of aquatic species in rivers designated as Special Areas of Conservations (SACs) against a predetermined set of objectives. This paper describes the protocols developed to determine the condition status of lampreys, bullheads, shad and Atlantic salmon in SAC rivers in the UK. Two strategies are proposed for assessment of favourable conservation status of fish species of in SAC rivers. The first approach classifies the extant density of fish of various life stages against pre-set targets and the second examines the demographic structure of the population, i.e. the contribution of juveniles to the population, to demonstrate recruitment success. To achieve favourable conservation status, where abundant, the fish population should consist of a pre-determined proportion of young of the year or juvenile age classes. Further assessment of the status can be derived from mapping the distribution of the target species in individual SAC rivers. Favourable conservation status should be recorded if there is no decline in distribution from the current, or where available, historical pattern. Reasons for not achieving favourable condition status should be determined from environmental and physiochemical data collected in conjunction with the fisheries surveys. © Springer Science+Business Media B.V. 2010.
format Book Part
author Noble, Richard A.
Nunn, Andrew D.
Harvey, Jonathan P.
Cowx, Ian G.
author_facet Noble, Richard A.
Nunn, Andrew D.
Harvey, Jonathan P.
Cowx, Ian G.
author_sort Noble, Richard A.
title Monitoring fish populations in river SACs
title_short Monitoring fish populations in river SACs
title_full Monitoring fish populations in river SACs
title_fullStr Monitoring fish populations in river SACs
title_full_unstemmed Monitoring fish populations in river SACs
title_sort monitoring fish populations in river sacs
publishDate 2009
url https://hull-repository.worktribe.com/output/409509
https://doi.org/10.1007/978-1-4020-9278-7_6
genre Atlantic salmon
genre_facet Atlantic salmon
op_relation https://hull-repository.worktribe.com/output/409509
Pagination 53-62
doi:https://doi.org/10.1007/978-1-4020-9278-7_6
9781402092770; 9781402092787
doi:10.1007/978-1-4020-9278-7_6
op_doi https://doi.org/10.1007/978-1-4020-9278-7_6
container_start_page 53
op_container_end_page 62
op_publisher_place Dordrecht
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