- 行业: Government
- Number of terms: 30456
- Number of blossaries: 0
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NOAA Coral Reef Conservation Program, National Oceanic and Atmospheric Administration, U.S. Department of Commerce
A change in the genetic composition of one species (or infraspecific group) in response to a genetic change in another, i.e. Two or more species evolving, each in response to the other.
Industry:Natural environment
A fishing net used to encircle surface schooling fish. During retrieval the bottom of the net is closed or pursed by drawing a purse line through a series of rings to prevent the fish from escaping. The catch is deposited on the fishing boat. The purse seine is operated by two boats, a large boat that surrounds the catch with the net and a smaller boat which anchors the net. Purse seines may be of up to 1 km length and 300 m depth.
Industry:Natural environment
A marine polychaete worm in the family Sabellidae which lives in flexible tubes constructed of sand grains embedded in mucus.
Industry:Natural environment
A private network inside an organization that uses the same kinds of software found on the public internet, but which is only for internal use.
Industry:Natural environment
A state in hermaphroditic systems characterized by the development of female reproductive organs, or maturation of their gametes, before the appearance of the corresponding male product, thus insuring against self-fertilization.
Industry:Natural environment
In taxonomy, power of the International Commission on Zoological Nomenclature to suspend articles of the Code to settle particular cases.
Industry:Natural environment
