Murdoch University Research Repository

Welcome to the Murdoch University Research Repository

The Murdoch University Research Repository is an open access digital collection of research
created by Murdoch University staff, researchers and postgraduate students.

Learn more

First evidence of spawning migration by goldfish (Carassius auratus); implications for control of a globally invasive species

Beatty, S.J.ORCID: 0000-0003-2620-2826, Allen, M.G., Whitty, J.M., Lymbery, A.J.ORCID: 0000-0002-0542-3446, Keleher, J.J., Tweedley, J.R.ORCID: 0000-0002-2749-1060, Ebner, B.C. and Morgan, D.L. (2017) First evidence of spawning migration by goldfish (Carassius auratus); implications for control of a globally invasive species. Ecology of Freshwater Fish, 26 (3). pp. 444-455.

PDF - Authors' Version
Download (1MB) | Preview
Link to Published Version:
*Subscription may be required


Goldfish (Carassius auratus) was one of the first fishes to be domesticated and has been widely introduced across the globe, but is now considered one of the world's worst invasive aquatic species. Surprisingly, there is a dearth of information on its spatial and temporal movement patterns, which hampers the development of effective control programmes. We examined the movement patterns of an introduced population of C. auratus in a south-western Australian river using passive acoustic telemetry. The study population had a high residency index within the array (i.e. proportion of all days at liberty that, on average, each fish was detected by a receiver) with fish being detected on 64% of days. The individuals were also reasonably mobile, travelling a mean of 0.30 km (linear river kilometres).day-1 within the array, and one fish moved 231.3 km over the 365-day study period (including 5.4 km in a 24 hr period). Importantly, C. auratus displayed significant seasonal movement patterns including a clear shift in habitats during its breeding period with most mature individuals being detected in an off-channel wetland during that time. The results of this study strongly suggest that C. auratus undertook a spawning migration into a lentic habitat. These results have important implications for developing control programmes for the species, such as targeting connections to off-channel lentic systems during its breeding period.

Item Type: Journal Article
Murdoch Affiliation(s): School of Veterinary and Life Sciences
Centre for Fish and Fisheries Research
Freshwater Fish Group & Fish Health Unit
Publisher: Blackwell Publishing Inc.
Copyright: © 2016 John Wiley & Sons A/S.
United Nations SDGs: Goal 15: Life on Land
Item Control Page Item Control Page


Downloads per month over past year