It is one of only two deep, cold, and oligotrophic lakes in the Clyde River system, the other being nearby Lake Seymour.
12.
It consists of a small oligotrophic lake for amphibians, as well as reconstituted habitats for insects and small mammals with dead trees and alpine fellfields.
13.
Horn Pond is classified as " Potentially Non-supporting " under the New Hampshire Department of Environmental Services'revised water quality standards for oligotrophic lakes.
14.
Oligotrophic lakes generally host very little or no aquatic vegetation and are relatively clear, while eutrophic lakes tend to host large quantities of organisms, including algal blooms.
15.
Lake Superior has fewer dissolved nutrients relative to its water volume than the other Great Lakes and so is less productive in terms of fish populations and is an oligotrophic lake.
16.
Higgins Lake is considered a morphometrically oligotrophic lake, meaning that its large size causes it to appear and function as a nutrient-poor lake although it receives a fair amount of nutrients.
17.
Prior to the introduction of aquaculture, Alligator Lake was considered as an oligotrophic lake, having low nutrient content and low algal production, resulting in very clear water with high drinking-water quality.
18.
It is the only British fine-leaved pondweed likely to be encountered in oligotrophic lakes, where it generally grows in deeper water with " Isoetes " and " Nitella " spp.
19.
However, it is a protected feature of several fenland nature reserves in Britain, both in its own right and as a characteristic species of fenland habitat and the Habitats Directive habitats " Hard oligotrophic lakes with " Chara " " and " Natural eutrophic lakes with " Magnopotamion " ".
20.
Despite its relatively small size, Otter Lake holds a large volume of water and is quite deep, up to 36 m at its deepest location and generally exhibits the characteristics of a mesotrophic lake although the deep bathymetry of the central and southern areas of the lake is more typical of an oligotrophic lake.