Catchment-scale conservation units identified for the threatened Yarra pygmy perch (Nannoperca obscura) in highly modified river systems.
Habitat fragmentation caused by human activities alters metapopulation dynamics and decreases biological connectivity through reduced migration and gene flow, leading to lowered levels of population genetic diversity M Bags and to local extinctions.The threatened Yarra pygmy perch, Nannoperca obscura, is a poor disperser found in small, isolated po