Report on the biology and ecology of the introduced tilapia Oreochromis mossambicus (Peters) (Pisces:Cichlidae) in the Sepik River, Papua New Guinea, and the social and economic impact of its introduction

Redding, A. T.

Report on the biology and ecology of the introduced tilapia Oreochromis mossambicus (Peters) (Pisces:Cichlidae) in the Sepik River, Papua New Guinea, and the social and economic impact of its introduction

Autores

Redding, A. T.

Editor

FAO ;

Descripción

The actual landmass of New Guinea and the smaller islands lie between the two major plates, the stable continental plate of Australia to the south and the deeper Pacific basin to the north . The collision and subsequent northward movement of the former and the westward movement of the latter plate has created uplifted sections in the centre of the island thus forming the central highlands. These mountain ranges effectively create two different zoogeographic zones in the northern and southern reg ions of New Guinea. Freshwater fish fauna in the two regions are distinct, the southern species shown a resemblance to the fauna of northern Australian whereas those in the north show a high degree of endemism