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Recovery of the red-finned blue-eye: An endangered fish from springs of the Great Artesian Basin

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Fairfax, R., Fensham, R., Wager, R., Brooks, S. G., Webb, A. and Unmack, P. (2007) Recovery of the red-finned blue-eye: An endangered fish from springs of the Great Artesian Basin. Wildlife Research, 34 (2). pp. 156-166.


Article Link: http://dx.doi.org/10.1071/WR06086

Publisher URL: http://www.publish.csiro.au


The red-finned blue-eye (Scaturiginichthys vermeilipinnis) is endemic to a single complex of springs emanating from the Great Artesian Basin, Australia. The species has been recorded as naturally occurring in eight separate very shallow (generally <20 mm) springs, with a combined wetland area of ~0.3 ha. Since its discovery in 1990, five red-finned blue-eye (RFBE) populations have been lost and subsequent colonisation has occurred in two spring wetlands. Current population size is estimated at <3000 individuals. Artesian bores have reduced aquifer pressure, standing water levels and spring-flows in the district. There is evidence of spatial separation within the spring pools where RFBE and the introduced fish gambusia (Gambusia holbrooki) co-occur, although both species are forced together when seasonal extremes affect spring size and water temperature. Gambusia was present in four of the five springs where RFBE populations have been lost. Four out of the five remaining subpopulations of RFBE are Gambusia free. Circumstantial evidence suggests that gambusia is a major threat to red-finned blue-eyes. The impact of Gambusia is probably exacerbated by domestic stock (cattle and sheep), feral goats and pigs that utilise the springs and can negatively affect water quality and flow patterns. Three attempts to translocate RFBE to apparently suitable springs elsewhere within the complex have failed. Opportunities to mitigate threats are discussed, along with directions for future research to improve management of this extremely threatened fish and habitat.

Item Type:Article
Corporate Creators:Fisheries
Business groups:Fisheries Queensland
Additional Information:© CSIRO.
Keywords:Gambusia holbrooki; Great Artesian Basin, Australia; red-finned blue-eye; Scaturiginichthys vermeilipinnis.
Subjects:Aquaculture and Fisheries > Fisheries > Fishery research
Aquaculture and Fisheries > Fisheries > Fishery for individual species
Aquaculture and Fisheries > Fisheries > Fishery conservation
Live Archive:28 Apr 2009 02:43
Last Modified:28 Mar 2022 02:32

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