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The Osborne submersed aquatic plant sampler was designed to obtain biomass samples from the water column and sediment of lakes and streams. The sampler, which is operated by winch and cable from a apontoon boat, is easily operated to obtain a sufficient number of samples within a limited time frame (one day) for applying statistical methods. Mean biomass estimates (kilograms per metre squared), percent frequency of occurrence, seasonal biomass trends, and seasonal or annual mean biomass distribution of submersed aquatic vegetation can be calculated from data collected with the sampler. The sampler has been used in aquatic plant studies to determine the distribution, ecology, and effect of control methodologies for submersed plant species. Several study lakes may be visited per sampling day because of the ease of transporting the sampler.
samplers, biomass, aquatic plants, submersed
Professor, University of Central Florida, Orlando, FL