Swimming Performance of Juvenile Menhaden (Brevoortia tyrannus)
- 1 November 1978
- journal article
- research article
- Published by Oxford University Press (OUP) in Transactions of the American Fisheries Society
- Vol. 107 (6) , 793-798
- https://doi.org/10.1577/1548-8659(1978)107<793:spojmb>2.0.co;2
Abstract
Critical swimming speeds (CSS) for groups of menhaden were determined in various time and water velocity combinations. Critical swimming speeds varied between 20.7 body lengths/s (BL/s) for short time intervals (2 min) to 15.8 BL/s for long time intervals (64 min). Experiments were repeated with the same group of fish to assess the effect of previous experience and mean CSS increased by 2.3 BL/s. Tailbeat frequency increased steadily with increasing velocity. Differences in tailbeat frequency occurred among fish in different positions in the groups. Time to exhaustion for menhaden in groups of 1-8 fish swimming at constant velocities were determined to assess the effect of group size on swimming performance. Time to exhaustion increased by a factor of 10 as group size increased from 1-6 fish.Keywords
This publication has 1 reference indexed in Scilit:
- Effects of Time and Velocity Increments on the Critical Swimming Speed of Largemouth Bass (Micropterus salmoides)Transactions of the American Fisheries Society, 1977