Oligotrophic lake — An oligotrophic lake is a lake with low primary productivity, the result of low nutrient content. These lakes have low algal production, and consequently, often have very clear waters, with high drinking water quality. The bottom waters of such… … Wikipedia
oligotrophic — adjective Etymology: International Scientific Vocabulary Date: 1928 having a deficiency of plant nutrients that is usually accompanied by an abundance of dissolved oxygen < clear oligotrophic lakes > … New Collegiate Dictionary
oligotrophic — /ɒləgoʊˈtrɒfɪk/ (say oluhgoh trofik), / troʊfɪk/ (say trohfik) adjective (of rivers or lakes) deficient in plant nutrients. Compare eutrophic, mesotrophic (def. 1). {oligo + trophic} …
Trophic state index — The quantities of nitrogen, phosphorus, and other biologically useful nutrients are the primary determinants of a body of water s trophic state index (TSI). Nutrients such as nitrogen and phosphorus tend to be limiting resources in standing water … Wikipedia
Eutrophic lake — A eutrophic lake (Eu meaning good/well and trophic meaning food/nutrients) is a lake with high primary productivity, the result of high nutrient content. These lakes are subject to excessive algal blooms, resulting in poor water quality. The… … Wikipedia
inland water ecosystem — ▪ biology Introduction complex of living organisms in free water on continental landmasses. Inland waters represent parts of the biosphere within which marked biological diversity, complex biogeochemical pathways, and an array of… … Universalium
Cross-boundary subsidy — Alaskan boreal forest in Yukon National Wildlife Refuge Cross boundary subsidies are caused by organisms or materials that cross or traverse habitat patch boundaries, subsidizing the resident populations. The transferred organisms and materials… … Wikipedia
Mysis diluviana — Scientific classification Kingdom: Animalia Phylum … Wikipedia
Cross-boundary subsidies — are caused by organisms or materials that cross or traverse habitat patch boundaries, subsidizing the resident populations. The transferred organisms and materials may provide additional predators, prey, or nutrients to resident species, which… … Wikipedia
Mysis relicta — Scientific classification Kingdom: Animalia Phylum … Wikipedia
