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Type: Journal article
Title: Exploiting the innate behaviour of common carp, Cyprinus carpio, to limit invasion and spawning in wetlands of the River Murray, Australia
Author: Conallin, A.
Smith, B.
Thwaites, L.
Walker, K.
Gillanders, B.
Citation: Fisheries Management and Ecology, 2016; 23(6):431-449
Publisher: Wiley
Issue Date: 2016
ISSN: 0969-997X
Statement of
A.J. Conallin, B.B. Smith, L.A. Thwaites, K.F. Walker and B.M. Gillanders
Abstract: Common carp, Cyprinus carpio L., a destructive invasive pest of the Murray–Darling Basin, Australia, move from rivers into wetlands to spawn, making them vulnerable to trapping, but traps may also capture and affect access for native species. This study trialled a trap designed to separate carp from native fish entering wetlands by exploiting their different jumping and pushing behaviours. Trials were conducted at a flow-through wetland on the River Murray, South Australia, from June to October 2008. No carp approached the wetland inlet, but many (n = 3736) were sampled at the outlet, most by the trap (n = 2530), but there was some avoidance. Ninety-two percent of trapped carp were successfully isolated by jumping or pushing. Separation was most efficient (and avoidance least) when carp were ready to spawn (water temperature >16 °C). The outlet design substantially reduced wetland carp invasion, but more trials are needed to assess the pushing ability of native fish, to deter entry by turtles, and with alternatives for wetland inlets.
Keywords: Behaviour; Carassius auratus; Chelidae; Cyprinidae; lateral movements; mark–recapture
Rights: © 2016 John Wiley & Sons Ltd
RMID: 0030059151
DOI: 10.1111/fme.12184
Appears in Collections:Earth and Environmental Sciences publications

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