W. Okera

发表

Observations on some population parameters of exploited stocks of Senilia senilis (=Arca senilis) in Sierra Leone

W. Okera, 1976 .

Morphometrics,‘condition’and gonad development of the East African Sardinella gibbosa (Bleeker) and Sardinella albella (Valenciennes)*

W. Okera, 1974 .

The zooplankton of the inshore waters of Dar es Salaam (Tanzania, S. E. Africa) with observations on reactions to artificial light

W. Okera, 1974 .