Preliminary assessment of the biogeography of fishes in South African estuaries

摘要: The biogeography of the fishes 42 South African estuaries was investigated using an extensive synoptic dataset collected over period 1993–99. Fish species richness low on west (Atlantic Ocean) coast and high in east (Indian coast. Endemic dominated systems south coasts, whereas tropical origin Multivariate analyses indicated that those south-west were distinct from remaining systems, which showed a gradation to north-east An analysis similarities three biogeographic regions could be delineated. A cool-temperate region extended Orange River, down along Cape Agulhas; warm-temperate zone stretched Agulhas just Port St Johns; subtropical up approximately Johns.