Assessment of the pelagic fish populations using CEN multi-mesh gillnets: consequences for the characterization of the fish communities
The contribution of CEN standard pelagic nets to the assessment of fish communities is tested by comparing three metrics (species composition, species abundance, and size structures) measured in accordance with the standard (i.e. using benthic nets only) to those calculated from the total effort (i....
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2009-01-01
|
| Series: | Knowledge and Management of Aquatic Ecosystems |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1051/kmae:2008005 |
| _version_ | 1818362617131958272 |
|---|---|
| author | Deceliere-Vergès C. Guillard J. |
| author_facet | Deceliere-Vergès C. Guillard J. |
| author_sort | Deceliere-Vergès C. |
| collection | DOAJ |
| description | The contribution of CEN standard pelagic nets to the assessment of fish communities is tested by comparing three metrics (species composition, species abundance, and size structures) measured in accordance with the standard (i.e. using benthic nets only) to those calculated from the total effort (i.e. including pelagic nets). Hydroacoustic surveys were used simultaneously to assess fish densities in the pelagic habitat. The results show that in most cases the pelagic nets did not provide any extra information about these three metrics. However, their inclusion in the calculation of CPUE and size structures may affect the picture of the fish communities, especially in lakes containing salmonid populations. This study highlights the need to sample pelagic fish when assessing fish communities in order to determine lake quality. |
| first_indexed | 2024-12-13T21:35:25Z |
| format | Article |
| id | doaj.art-85aae0aa0f3f4404831e85690b1334e5 |
| institution | Directory Open Access Journal |
| issn | 1961-9502 |
| language | English |
| last_indexed | 2024-12-13T21:35:25Z |
| publishDate | 2009-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | Knowledge and Management of Aquatic Ecosystems |
| spelling | doaj.art-85aae0aa0f3f4404831e85690b1334e52022-12-21T23:30:41ZengEDP SciencesKnowledge and Management of Aquatic Ecosystems1961-95022009-01-0103890410.1051/kmae:2008005kmae08005Assessment of the pelagic fish populations using CEN multi-mesh gillnets: consequences for the characterization of the fish communitiesDeceliere-Vergès C.Guillard J.The contribution of CEN standard pelagic nets to the assessment of fish communities is tested by comparing three metrics (species composition, species abundance, and size structures) measured in accordance with the standard (i.e. using benthic nets only) to those calculated from the total effort (i.e. including pelagic nets). Hydroacoustic surveys were used simultaneously to assess fish densities in the pelagic habitat. The results show that in most cases the pelagic nets did not provide any extra information about these three metrics. However, their inclusion in the calculation of CPUE and size structures may affect the picture of the fish communities, especially in lakes containing salmonid populations. This study highlights the need to sample pelagic fish when assessing fish communities in order to determine lake quality.http://dx.doi.org/10.1051/kmae:2008005lakepelagic zonefish metricCEN multi-mesh gillnetsWater Framework Directive |
| spellingShingle | Deceliere-Vergès C. Guillard J. Assessment of the pelagic fish populations using CEN multi-mesh gillnets: consequences for the characterization of the fish communities Knowledge and Management of Aquatic Ecosystems lake pelagic zone fish metric CEN multi-mesh gillnets Water Framework Directive |
| title | Assessment of the pelagic fish populations
using CEN multi-mesh gillnets: consequences for the characterization of the fish communities |
| title_full | Assessment of the pelagic fish populations
using CEN multi-mesh gillnets: consequences for the characterization of the fish communities |
| title_fullStr | Assessment of the pelagic fish populations
using CEN multi-mesh gillnets: consequences for the characterization of the fish communities |
| title_full_unstemmed | Assessment of the pelagic fish populations
using CEN multi-mesh gillnets: consequences for the characterization of the fish communities |
| title_short | Assessment of the pelagic fish populations
using CEN multi-mesh gillnets: consequences for the characterization of the fish communities |
| title_sort | assessment of the pelagic fish populations using cen multi mesh gillnets consequences for the characterization of the fish communities |
| topic | lake pelagic zone fish metric CEN multi-mesh gillnets Water Framework Directive |
| url | http://dx.doi.org/10.1051/kmae:2008005 |
| work_keys_str_mv | AT decelierevergesc assessmentofthepelagicfishpopulationsusingcenmultimeshgillnetsconsequencesforthecharacterizationofthefishcommunities AT guillardj assessmentofthepelagicfishpopulationsusingcenmultimeshgillnetsconsequencesforthecharacterizationofthefishcommunities |