Journal article
First record of ‘climbing’ and ‘jumping’ by juvenile Galaxias truttaceus Valenciennes, 1846 (Galaxiidae) from south-western Australia
Australian Journal of Zoology, Vol.62(2), pp.175-179
2014
Abstract
Upstream migration of juvenile stages of temperate Australian amphidromous fish typically coincides with seasonally low river discharge when hydraulic (e.g. cascades) and physical (e.g. rock bars) barriers may be common. The ability to ‘climb’ or ‘jump’ may be expected to assist in negotiating low-flow barriers; however, it is presumed to be limited to a few native Australian freshwater fishes. Juvenile stages of Galaxias truttaceus Valenciennes, 1846 were observed ‘climbing’ and ‘jumping’ to successfully negotiate a low, vertical weir wall during their upstream recruitment migrations in south-western Australia. Based on this observation, we propose initial definitions for ‘climbing’ and ‘jumping’ to describe locomotory strategies employed by fishes to negotiate obstacles that would otherwise prevent free passage by normal swimming behaviour. Greater knowledge of the climbing, jumping and swimming performance, especially for small-bodied species and early life stages, will help improve the management of instream barriers for this critically endangered species and other freshwater fishes of southern Australia.
Details
- Title
- First record of ‘climbing’ and ‘jumping’ by juvenile Galaxias truttaceus Valenciennes, 1846 (Galaxiidae) from south-western Australia
- Authors/Creators
- P.G. Close (Author/Creator)T.J. Ryan (Author/Creator)D.L. Morgan (Author/Creator)S.J. Beatty (Author/Creator)C.S. Lawrence (Author/Creator)
- Publication Details
- Australian Journal of Zoology, Vol.62(2), pp.175-179
- Publisher
- CSIRO Publishing
- Identifiers
- 991005543551507891
- Copyright
- © CSIRO 2014.
- Murdoch Affiliation
- Freshwater Fish Group and Fish Health Unit; School of Veterinary and Life 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
- Zoology
- ESI research areas
- Plant & Animal Science