The Black-stripe Minnow, Galaxiella nigrostriata, is a small (maximum 48 mm TL), scaleless freshwater fish. It is characterised by two black longitudinal bands separated with a yellow/orange to red stripe.
Blackstriped Dwarf Galaxias |
Status: Endangered on the EPBC Act list
Government evidence of impact of climate change:
Australian Government, Conservation Advice, Galaxiella nigrostriata
However; it was accepted that climate change was an issue for the species.
Specify if the threat is past; current or whole species or specific the conservation of the potential) subpopulations) species) Climate change leading to increased air and water The entire south western High Drying to occur even temperatures; decreased rainfall; increased region has undergone drying under low emissions evaporation and lowering groundwater table Past; and warming; and scenarios) present and future furthermore is projected to continue to be impacted In the south west of WA; climate change is into the future. expected to cause a reduction in rainfall of 40 by 2070 with increased rates of evapotranspiration.
Although it was accepted that climate change was an issue for the species.
However it was accepted that climate change was an issue for the species.
If the EOO is decreasing declining; is it continuing Yes No Is the continuing decline observed; Continuing decline is estimated based on projected climate change estimated; inferred or projected models for the region Is there extreme fluctuation in EOO Yes No If Yes; provide details 3.4 Area of Occupancy (AOO) within Australia What is the current AOO 23 km Area of occupancy (AOO) was also determined as per IUCN (2014).
If the AOO is decreasing declining; is it continuing Yes No Is the continuing decline observed; Continuing decline is estimated based on projected climate change estimated; inferred or projected Give models for the region details.
As climate change models project a further drying in the region; more sites may be lost as suitable habitat for the species.
Include on whole species or threat to the abiotic and biotic causes; specific conservation of the human related e.g. exploitation; subpopulations) species) and biological characteristics of the species e.g. low genetic diversity) Climate change increased air The entire south High (drying to occur The Southwestern Province of Australia has Since the 1970 s until present and water temperatures; western region has even under low experienced climatic drying since the 1970’s; time.
Projections of climate change for the region indicate a further reduction (up to 20 ) in mean annual rainfall and further warming (0.5 to 1.3 C) by 2030.
Living on burrowed time aestivating fishes face extinction due to climate change.
Swan Coastal of wetlands on the Swan various land use practices; including agriculture; Plain) Coastal Plain urbanisation; road construction and maintenance; forestry; dams and other related infrastructure; Currently; isolated pools or Low (on a species scale); High and mineral and quartzite sand mining. sections of pools bordering (on a local scale) Loss of long strips of roadway. individual sites causing Excessive anthropogenic groundwater extraction. potential isolation of other Altered fire regimes. pools Increased salinity due to agricultural practices historical land clearing.
Future projections based on decreased rainfall; increased undergone drying and emissions scenarios) with the total rainfall declining by 10 to 50 mm a timeframe of 2030. evaporation; lowering warming; and per decade ( 16 overall reduction) causing groundwater table furthermore is annual stream flows to decline by 50 .Mean projected to continue annual air temperature has also increased to be impacted into between 0.10 and 0.30 C per decade over that the future. period; resulting in higher rates of evaporation from surface waters.