Journal of the American Mosquito Control Association (2004) 20, 286-291

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Timothy P. Hurst, Michael D. Brown and Brian H. Kay (2004)
Laboratory evaluation of the predation efficacy of native Australian fish on Culex annulirostris (Diptera: Culicidae)
Journal of the American Mosquito Control Association 20 (3), 286-291
Abstract: The introduction and establishment of fish populations can provide long-term, cost-effective mosquito control in habitats such as constructed wetlands and ornamental lakes. The predation efficacy of 7 native Brisbane freshwater fish on 1st and 4th instars of the freshwater arbovirus vector Culex annulirostris was evaluated in a series of 24-h laboratory trials. The trials were conducted in 30-liter plastic carboys at 25 ± 1°C under a light:dark cycle of 14:10 h. The predation efficacy of native crimson-spotted rainbowfish Melanotaenia duboulayi (Melanotaeniidae), Australian smelt Retropinna semoni (Retropinnadae), Pacific blue-eye Pseudomugil signifer (Atherinidae), fly-specked hardyhead Craterocephalus stercusmuscarum (Atherinidae), firetail gudgeon Hypseleotris galii (Eleotridae), empire gudgeon Hypseleotris compressa (Eleotridae), and estuary perchlet Ambassis marianus (Ambassidae) was compared with the exotic eastern mosquitofish Gambusia holbrooki (Poeciliidae). This environmentally damaging exotic has been disseminated worldwide and has been declared noxious in Queensland. Melanotaenia duboulayi was found to consume the greatest numbers of both 1st and 4th instars of Cx. annulirostris. The predation efficacy of the remaining Australian native species was comparable with that of the exotic G. holbrooki. With the exception of A. marianus, the maximum predation rates of these native species were not statistically different whether tested individually or in a school of 6. Based on these data, M. duboulayi, H. compressa, and A. marianus warrant further investigation as biological control agents in pilot field trials.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Timothy P. Hurst, Brian H. Kay

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
evaluation - screening - selection

Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.

Culex annulirostris Australia (NT+QLD)
Gambusia holbrooki (predator) Culex annulirostris Australia (NT+QLD)
Pseudomugil signifer (predator) Culex annulirostris Australia (NT+QLD)
Melanotaenia duboulayi (predator) Culex annulirostris Australia (NT+QLD)
Retropinna semoni (predator) Culex annulirostris Australia (NT+QLD)
Craterocephalus stercusmuscarum (predator) Culex annulirostris Australia (NT+QLD)
Hypseleotris galii (predator) Culex annulirostris Australia (NT+QLD)
Hypseleotris compressa (predator) Culex annulirostris Australia (NT+QLD)
Ambassis marianus (predator) Culex annulirostris Australia (NT+QLD)