- 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
The opening of a choanocyte chamber of a sponge into an excurrent canal.
Industry:Natural environment
The study of the chemical elements, their isotopes, and related processes with respect to the abundance and distribution of materials within the Earth's waters, crust, and atmosphere.
Industry:Natural environment
A branch of economics that considers the relationships of social factors and the market place. For example, coral reef management decisions should identify how these essentially ecological decisions effect the coral reef dependent community.
Industry:Natural environment
A DNA sequencing technique in which a large number of small fragments of a long DNA strand are generated at random, sequenced, and computationally reassembled to form a sequence of the original strand; also known as "shotgun cloning" .
Industry:Natural environment
A linear transect protocol where a tape is secured at each end of the transect with the tape draped over the reef in between. Observations are collected on each species and substrate component at specified points along the line.
Industry:Natural environment
A polychaete worm (Palola viridis) that burrows in the coral reefs of some Pacific Islands. Just before the last quarter of the moon in October and November, they swarm and breed in vast numbers at the sea surface. They are gathered and highly esteemed as food by the islanders. An allied species inhabits the tropical Atlantic and swarms in June or July.
Industry:Natural environment
A specialized non-feeding bryozoan zooid. Heterozooids include forms specialized for producing and brooding eggs, or, more rarely, spermatozoa. Others are specialized to protect the colony, or have a cleaning function, or strengthen and support the colony.
Industry:Natural environment
A type of speciation in which a formerly contiguous population is split by the rise of some geographical barrier, e.g., a mountain range.
Industry:Natural environment
An identification system involving various methods (fin clipping, coloring, biotelemetry, radioactive markers, tattooing, branding, tagging, etc.), used for individual identification and for studies on movement, growth and other biological activities; also called "marking".
Industry:Natural environment
