1. Anon . (1982 ). Fisheries Research Annual Report, 1980 & 1981. Port Moresby: Department of Primary Industry, p.75 .
2. R. M. Chapau (1983 ). The plankton and hydrology of the Ysabel Passage . Port Moresby: Department of Primary Industry, Fisheries Research & Surveys Branch. Res. Rep. 83-06, p.46 .