Universität zu Köln

Thorstad, E. B., Havn, T. B., Saether, S. A., Heermann, L., Teichert, M. A. K., Diserud, O. H., Tambets, M., Borcherding, J. and Okland, F. (2017). Survival and behaviour of Atlantic salmon smolts passing a run-of-river hydropower facility with a movable bulb turbine. Fisheries Manag. Ecol., 24 (3). S. 199 - 208. HOBOKEN: WILEY. ISSN 1365-2400

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Abstract

Downstream migration of radio-tagged Atlantic salmon smolts, Salmo salar L., was studied in the Kinzig, Germany, to examine effects of passing a run-of-river hydropower station with a movable bulb turbine. Immediate mortality for smolts passing the power station was low (3%-6%), probably facilitated by a curved rack in front of the turbine and the possibility to pass over it. Mortality in the impounded stretch above the power station was also low (1.5% extra mortality compared to a control stretch). The combined mortality due to hydropower was 5%-8%, excluding delayed effects. Most smolts followed the main flow passing through the turbine area (94%). Only few used a fishway (4%) or a nearby millstream (2%). Migration speed was slowed down at the power station, but the passage only caused a short delay (average/median 8.6/1.3hr). However, even low mortality and short delays at several power stations and reservoirs may have considerable cumulative effects.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Thorstad, E. B. UNSPECIFIED UNSPECIFIED UNSPECIFIED Havn, T. B. UNSPECIFIED UNSPECIFIED UNSPECIFIED Saether, S. A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Heermann, L. UNSPECIFIED UNSPECIFIED UNSPECIFIED Teichert, M. A. K. UNSPECIFIED UNSPECIFIED UNSPECIFIED Diserud, O. H. UNSPECIFIED UNSPECIFIED UNSPECIFIED Tambets, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Borcherding, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Okland, F. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-229692
DOI:	10.1111/fme.12216
Journal or Publication Title:	Fisheries Manag. Ecol.
Volume:	24
Number:	3
Page Range:	S. 199 - 208
Date:	2017
Publisher:	WILEY
Place of Publication:	HOBOKEN
ISSN:	1365-2400
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language TRUTTA L. SMOLTS; SALAR L.; DOWNSTREAM MIGRATION; SILVER EELS; FISH; PASSAGE; PLANTS; SIZE Multiple languages Fisheries Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/22969