Genetic and morphological study of the Black-stripe minnow, Galaxiella nigrostriata (Salmoniformes: Galaxiidae), including a disjunct population near Perth, Western AustraliaWA Museum Records and Supplements | Updated 3 years agoABSTRACT – This study was undertaken to measure the relatedness of an outlying population of Black-stripe minnow, Galaxiella nigrostriata (Shipway), from Melaleuca Park, 25 km northeast of Perth, to the main populations situated some 350 km to the south between Augusta and Albany. AlIozyme electrophoresis was used to assess genetic divergence between populations. Univariate statistical tests were employed to compare the morphology of fish from the different locations. Reproductive isolation of G. nigrostriata at EPP 173 has resulted in inbreeding and reduced heterozygosity as well as differences in morphology. Galaxiella nigrostriata throughout its range shows unusually low levels of genetic polymorphism. One polymorphic locus was identified from the 27 loci sampled. Polymorphic individuals were restricted to the southern sites; specimens from EPP 173 were entirely monomorphic. Fish from EPP 173 had longer head lengths and shorter caudal peduncles than those in the south. Author(s) Kimberly D. Smith, Luke J. Pen and Brenton Knott Volume Records 21 : Part 3 Article Published 2002 Page Number 285 DOI 10.18195/issn.0312-3162.21(3).2002.285-290 Genetic and morphological study of the Black-stripe minnow, Galaxiella nigrostriata (Salmoniformes: Galaxiidae), including a dis Download 1.22 MB To request an accessible version of this pdf please email firstname.lastname@example.org View the discussion thread.