TY - BOOK AU - Ward,G.S AU - Parrish,P.R. ED - Food and Agriculture Organization of the United Nations. ED - United Nations Environment Programme TI - Manual of methods in aquatic environment research SN - 9251011788 U1 - 639.2 PY - 1982/// CY - Rome PB - FAO KW - Aquatic ecology KW - Research KW - Aquatic biology KW - Ecology KW - Aquatic habitats KW - Fish culture KW - Fishery policy KW - Fishery research KW - Fishery management N1 - This manual was prepaired as part of a cooperative project of the UNEP entitled "Effects of pollution on living Aquatic Resources and Scientific basis for monitoring"; Includes bibliographical reference: p. 22-23 ER -