- Industry: Government
- Number of terms: 30456
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NOAA Coral Reef Conservation Program, National Oceanic and Atmospheric Administration, U.S. Department of Commerce
A change in the genetic structure that can occur in any of the cells of the body except the reproductive cells, and therefore is neither inherited nor passed to offspring. Also called an 'acquired mutation'.
Industry:Natural environment
A fishing net, often miles in extent, arranged to drift with the tide or current and buoyed-up by floats or attached to a boat.
Industry:Natural environment
A marine polychaete worm in the family Serpulidae which secretes and lives in a rigid calcareous tube .
Industry:Natural environment
A procedure used in stratified sampling to allocate numbers of sample units to different strata so as to maximise some desirable quantity .
Industry:Natural environment
A state in hermaphroditic systems characterised by the development of male reproductive organs, or maturation of their gametes, before the appearance of the corresponding female product, thus insuring against self-fertilization.
Industry:Natural environment
A wave that approaches shallow water, causing the wave height to exceed the depth of the water, in effect tripping it. The wave changes from a smooth surge in the water to a cresting wave with water tumbling down the front of it; a wave breaking on the shore.
Industry:Natural environment
An instrument for measuring speed of different parts of light spectrum.
Industry:Natural environment
In taxonomy, the abbreviation for genus et species nova, meaning new genus and species.
Industry:Natural environment
Organisms taken in a fishery which are not of the species intended for harvest. For example, mammals or turtles captured in trawl or seine fishing.
Industry:Natural environment
