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

S.J. Beatty; M.G. Allen; J.M. Whitty; A.J. Lymbery; J.J. Keleher; J.R. Tweedley; B.C. Ebner; D.L. Morgan

doi:10.1111/eff.12288

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

Journal article

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Peer reviewed

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

S.J. Beatty, M.G. Allen, J.M. Whitty, A.J. Lymbery, J.J. Keleher, J.R. Tweedley, B.C. Ebner and D.L. Morgan

Ecology of Freshwater Fish, Vol.26(3), pp.444-455

2017

DOI: https://doi.org/10.1111/eff.12288

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Abstract

freshwater fish

alien species

fish migration

acoustic telemetry

Cyprinidae

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.

Details

Title: First evidence of spawning migration by goldfish (Carassius auratus); implications for control of a globally invasive species
Authors/Creators: S.J. Beatty (Author/Creator) - Murdoch University
M.G. Allen (Author/Creator)
J.M. Whitty (Author/Creator) - Murdoch University
A.J. Lymbery (Author/Creator) - Murdoch University
J.J. Keleher (Author/Creator) - Murdoch University
J.R. Tweedley (Author/Creator) - Murdoch University
B.C. Ebner (Author/Creator) - CSIRO Land and Water
D.L. Morgan (Author/Creator) - Murdoch University
Publication Details: Ecology of Freshwater Fish, Vol.26(3), pp.444-455
Publisher: Blackwell Publishing Inc.
Identifiers: 991005542057007891
Murdoch Affiliation: Centre for Fish and Fisheries Research; Freshwater Fish Group and Fish Health Unit; School of Veterinary and Life Sciences; Centre for Sustainable Aquatic Ecosystems
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration
Citation topics: 3 Agriculture, Environment & Ecology; 3.2 Marine Biology; 3.2.62 Freshwater Fish Ecology
Web Of Science research areas: Fisheries; Marine & Freshwater Biology
ESI research areas: Plant & Animal Science