SEDL / STP / STP573-EB / STP39019S

Problems in the Monitoring of Biomass

Watson, NHF
Great Lakes Biolimnology Laboratory, Fisheries and Marine Service, Environment Canada, Canada Centre for Inland Waters, Burlington, Ontario

Carpenter, GF
Industrial Biotest Laboratories Inc., Northbrook, Ill.

Munawar, M
Great Lakes Biolimnology Laboratory, Fisheries and Marine Service, Environment Canada, Canada Centre for Inland Waters, Burlington, Ontario

Pages: 9    Published: Jan 1975

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Abstract

Two general approaches for the estimation of standing crop for biomass determinates have been attempted in fresh waters. One involves identification and enumeration of organisms and subsequent extrapolation to biomass from volumetric or weight factors. Several direct methods are available for determining biomass, all of which give results affected by sample size but do not discriminate between types of organisms present. Some examples from current Great Lakes research are presented.