Figure 3From: Distinct migratory and non-migratory ecotypes of an endemic New Zealand eleotrid (Gobiomorphus cotidianus) – implications for incipient speciation in island freshwater fish speciesTypical patterns of 88Sr and 137Ba counts normalised to 43Ca in otolith cross sections from the nucleus to the edge. A: non-diadromous profile (category A) in a female Gobiomorphus cotidianus (92 mm) from the Kaituna River. B: diadromous profile (category B) in a male G. cotidianus (96 mm) from the downstream Tarawera River.Back to article page