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The critical water velocities of larval roach (Rutilus rutilus) and dace (Leuciscus leuciscus) and implications for river management

✍ Scribed by Mann, R. H. K. ;Bass, J. A. B.

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 90 KB
Volume: 13
Category: Article
ISSN: 0886-9375
DOI: 10.1002/(sici)1099-1646(199705)13:3<295::aid-rrr457>3.0.co;2-5

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✦ Synopsis

Results from arti®cial ¯ow channels showed that the ability of 0 group roach (Rutilus rutilus) and dace (Leuciscus leuciscus) to hold station was positively related to ®sh length and water temperature, and negatively related to water velocity. Interspeci®c differences in hatching times and 0 group ontogeny mean that a range of microhabitats are required to support a mixed species community. Optimum recruitment of 0 group ®sh will occur only if river management protocols provide such habitat diversity, especially within the riparian zone.