A 12-year study of the upstream migration of Anguilla anguilla in a fish-pass in the river Meuse reveals a dramatic decline of the stock in Belgium.
From 1992 to 2004 upstream migrating eels were collected in a trap (0,5 cm mesh size) installed at the top of a small pool-type fish-pass at the Visé-Lixhe dam (built in 1980 for navigation purposes and hydropower generation; height : 8,2 m; not equipped with a ship-lock) on the international River Meuse near the Dutch -Belgium border (290 km from the North Sea; width: 200 m; mean annual discharge: 238 m3/s; summer water temperature 21-26°C).The trap in the fish-pass was checked continuously (three times a week) over the migration period from March to September each year, except in 1994. We ca... Mehr ...
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Dokumenttyp: | conference paper not in proceedings |
Erscheinungsdatum: | 2005 |
Schlagwörter: | Eel / Stock / Decline / Fish-pass / Migration / Life sciences / Zoology / Sciences du vivant / Zoologie |
Sprache: | Englisch |
Permalink: | https://search.fid-benelux.de/Record/base-28951246 |
Datenquelle: | BASE; Originalkatalog |
Powered By: | BASE |
Link(s) : | https://orbi.uliege.be/handle/2268/80466 |