- المجال: Government
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NOAA Coral Reef Conservation Program, National Oceanic and Atmospheric Administration, U.S. Department of Commerce
In fishes, interradial pigment is pigment on the membrane between the fin rays .
Industry:Natural environment
Maas are a family of compounds which act as nature’s sunscreen in the marine environment. Shallow-water environments of tropical coral reefs are characterized by high levels of ultraviolet-A and ultraviolet-B radiation. Corals have developed an efficient defence against the potential damage of long-term solar irradiation, which often includes the production of natural "sunscreen"-type UV-absorbing compounds and related antioxidants. These compounds in shallow-water corals were identified to be a group of mycosporine-like amino acids (maas) having absorption maxima in the range 310-360 nm. Maas are assumed to be produced by the zooxanthellae in coral tissues, since their biosynthesis involves a biochemical pathway not found in invertebrates. The major distribution of maas, however, resides within the coral tissues, suggesting that the algal partner of the mutualistic relationship provides UV protection to the whole of the relationship via MAA translocation. Maas have been identified in a number of taxonomically diverse organisms such as fungi, marine heterotrophic bacteria, cyanobacteria, eukaryotic algae, marine invertebrates, fishes,and a wide variety of other marine organisms.
Industry:Natural environment
The area behind the head of a fish, extending from the back of the skull to the origin of the dorsal fin .
Industry:Natural environment
The irregular reflection, refraction, or diffraction of a sound in many directions.
Industry:Natural environment
The removal of introns and joining of exons to form a continuous coding sequence in RNA.
Industry:Natural environment
Two belts or regions of subtropical high-pressure areas, located between 30-35 degrees north and south, in which the wind is light and varied and weather is hot and dry.
Industry:Natural environment
A group of species that are morphologically similar and therefore difficult to identify.
Industry:Natural environment
A mutation involving a long segment of DNA. These mutations can involve deletions, insertions, or inversions of sections of DNA. In some cases, deleted sections may attach to other chromosomes, disrupting both the chromosomes that loses the DNA and the one that gains it; any type of change in the chromosome structure or number.
Industry:Natural environment
