- 行业: Government
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NOAA Coral Reef Conservation Program, National Oceanic and Atmospheric Administration, U.S. Department of Commerce
Sonar signals arriving at a target, or the towfish, from a single source but along different paths. The multibeam sonar system consist of a transducer, motion sensor, gyrocompass, and navigation system. When collected in slightly overlapping swaths (fanlike coverages from sonar scans), multibeam sonars can produce a sonar data set that represents nearly 100 percent acoustic coverage of the seafloor.
Industry:Natural environment
The division of the cytoplasm of a cell during cell division.
Industry:Natural environment
The poison in clupeotoxic fishes. It is a neurotoxin, palytoxin, found in marine dinoflagellates and presumably ingested by the fish.
Industry:Natural environment
The thin region surrounding the Earth that is capable of supporting life.
Industry:Natural environment
The Lacey Act, passed in 1900, and amended several times, makes it unlawful to import, export, transport, sell, buy, or possess fish, wildlife, or plants taken, possessed, transported, or sold in violation of any federal, state, foreign, or Native American tribal law, treaty, or regulation.
Industry:Natural environment
The amount of time and fishing power used to harvest fish. Fishing power includes gear size, boat size, and horsepower.
Industry:Natural environment
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
