Journal article
The water velocity preferences of Austrosimulium furiosum and Simulium ornatipes (Diptera: Simuliidae) larvae, and the implications for micro-habitat partitioning
Hydrobiologia, Vol.230(1), pp.31-36
1992
Abstract
The aquatic larvae of two simuliid species, Austrosimulium furiosum (Skuse) and Simulium ornatipes Skuse, which often occur together in Victorian streams, were shown in laboratory experiments to have preferences for different water velocities: larvae of A. furiosum preferred water velocities of 0.2-0.3 m s-1, and S. ornatipes preferred water velocities of 0.9-1.3 m s -1 . Final instar larvae of both species selected 'slow' water speeds of less than 0.25 m s -1 prior to pupation. Flow patterns around a cylinder in a laboratory stream were mapped, and the distribution of A. furiosum larvae within the wake, paired vortices and horseshoe vortex was recorded. Larvae selected areas with suitable water velocities and aligned with the flow, providing flow visualization of micro-current speed and direction. The potential for micro-habitat partitioning is discussed in relation to benthic sampling strategies.
Details
- Title
- The water velocity preferences of Austrosimulium furiosum and Simulium ornatipes (Diptera: Simuliidae) larvae, and the implications for micro-habitat partitioning
- Authors/Creators
- P.A. Horne (Author/Creator)G. Bennison (Author/Creator)J. Davis (Author/Creator)
- Publication Details
- Hydrobiologia, Vol.230(1), pp.31-36
- Publisher
- Kluwer Academic Publishers
- Identifiers
- 991005543283207891
- Copyright
- © 1992 Kluwer Academic Publishers.
- Murdoch Affiliation
- School of Biological and Environmental Sciences
- Language
- English
- Resource Type
- Journal article
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- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.2 Marine Biology
- 3.2.62 Freshwater Fish Ecology
- Web Of Science research areas
- Marine & Freshwater Biology
- ESI research areas
- Plant & Animal Science