- 行业: Government
- Number of terms: 30456
- Number of blossaries: 0
- Company Profile:
NOAA Coral Reef Conservation Program, National Oceanic and Atmospheric Administration, U.S. Department of Commerce
A well-defined group or school of several kinds of fishes.
Industry:Natural environment
Having benefit for one member of a two-species association but neither positive nor negative effect on the other.
Industry:Natural environment
In taxonomy, the correct name for a given taxon, which may have several available names, one of which (usually the oldest) is chosen as the valid name. The valid name is always an available name, but an available name is not always a valid name.
Industry:Natural environment
Organisms with swimming abilities that allow them to move actively through the water column and to move against currents.
Industry:Natural environment
Soviet biologist, Aleksandr Ivanovich Oparin, in 1924, put forward a theory of life on Earth developing in the oceans through gradual chemical evolution of carbon-based molecules in a rich organic broth or "primeval soup." He hypothesized that the early oceans were rich in organic compounds .
Industry:Natural environment
The early mitotic cellular divisions of the fertilized egg (zygote).
Industry:Natural environment
The populous region of most bank/barrier reefs seaward of the lower palmata zone. It begins at a depth of 6-8 m.
Industry:Natural environment
The time immediately before sunrise and after sunset when the sky remains illuminated.
Industry:Natural environment
