Biology of freshwater pollution. par Mason, C. F.

Biology of freshwater pollution par Mason, C. F.

Biology of freshwater pollution. par Mason, C. F.

Table of contents only

State of the art lakes and reservoirs research. par Philippine Council for Agriculture and Resources Research. Fisheries Research Division

Population dynamics and production of Daphnia ambigua in a fish pond, Kansas par Lei, Chi-hsiang

Agrochemical residue-biota interactions in soil and aquatic ecosystems proceedings and report of a combined advisory group meeting and research co-ordination meeting on agrochemica...

Polyculture of Nile tilapia (tilapia nilotica), common carp (Cyprinus carpio) and freshwater clam (Cristaria ipicata) in ponds with supplemental feeding par Recometa, Renato D.

Freshwater fishes of New York State par Werner, Robert G.

Rice field ecology in Northeastern Thailand the effect of wet and dry seasons on a cultivated aquatic ecosystem par Heckman, Charles W.

A quantitative survey of freshwater snails of Jaro, Leyte par Avila, Agerico A.

Table of contents only