| across the southern alps by river capture? freshwater fish phylogeography in south island, new zealand. | we used dna analysis of galaxiid fish to test a hypothesis of localized headwater capture in south island, new zealand. the restricted western, but widespread eastern, distributions of three nonmigratory freshwater fish species suggest that part of the east-flowing waiau river has been captured by the west-flowing buller river. however, mitochondrial control region (kimura 2-parameter distance = 4.1-5.4%) and microsatellite flanking sequences do not support a relationship between waiau (n = 4 fi ... | 2000 | 11050552 |