- 行业: Government
- Number of terms: 30456
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NOAA Coral Reef Conservation Program, National Oceanic and Atmospheric Administration, U.S. Department of Commerce
Any species of bony fishes in the family Monacanthidae.The body of filefishes is laterally compressed and roughly diamond-shaped in profile. The filefish gets its name from its very rough skin.The first dorsal fin is essentially a single sharp spine which.
Industry:Natural environment
In statistics, a sample drawn from a population divided into tiers or strata specifically relating to the study being undertaken; a sample derived by dividing the data population into a number of nonoverlapping classes or categories from which cases are selected at random, the number of cases selected from each category being proportional to the number therein.
Industry:Natural environment
Of uncertain taxonomic position or affinities (incertae sedis).
Industry:Natural environment
The complement of a nucleic acid sequence replaces each base by its complementary base: adenine (A) by thymine (T), cytosine (C) by guanine (G), and vice versa. In RNA, adenine is paired not with thymine but with uracil (U).
Industry:Natural environment
The movement of particles from an area of higher concentration to an area of lower concentration.
Industry:Natural environment
The species that is identified as being most sensitive to a threat in a changing environment. Species are being lost from areas in which their habitats are being destroyed, fragmented or simplified. Focal species can be used to identify the appropriate spatial and functional parameters that must be present in an environment if it is to retain the biota that occurs there.
Industry:Natural environment
A deep and relatively narrow body of water (as in a river, harbor, or a strait linking two larger bodies) that allows the best passage for vessels; an open conduit either naturally or artificially created which periodically or continuously contains moving water, or which forms a connecting link between two bodies of water. River, creek, run, branch, and tributary are some of the terms used to describe natural channels. Canal and floodway are some of the terms used to describe artificial channels.
Industry:Natural environment
