- Industry: 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
When fertilisation of an egg does not occur immediately following introduction of spermatozoa into the female reproductive tract, but may be delayed for weeks or months.
Industry:Natural environment
A body of rock built up by or composed mainly of sedentary organisms, e.g., hard corals, calcareous algae or mollusks, and enclosed or surrounded by rock of different origin.
Industry:Natural environment
A distribution in which a variable is distributed like the sum of the the squares of any given independent random variable, each of which has a normal distribution with a mean of zero and a variance of one.
Industry:Natural environment
A line drawn on a map or chart joining points that receive the same amount of precipitation.
Industry:Natural environment
A pinacocyte that adheres a sponge to a substrate by the external secretion of a collagenous matrix.
Industry:Natural environment
A software programme that is used to contact and obtain data from a server software programme on another computer, often across a great distance. Each client programme is designed to work with one or more specific kinds of server programs, and each server requires a specific kind of Client. A web browser is a specific kind of client.
Industry:Natural environment
An evolutionary line of coelomates that include mollusks, annelids, and arthropods. They develop their embryo by spiral cleavage, and the blastopore of the gastrula develops into the mouth. The group exhibits bilateral symmetry.
Industry:Natural environment
Any species of tropical bony fishes in the family Scaridae. Parrotfishes are abundant and common inhabitants of coral reef communities. Their teeth are fused into a sharp "parrot-like" beak strong enough to bite off pieces of stony corals. Some parrotfishes produce an enveloping mucous envelope that surrounds and presumably protects the body at night.
Industry:Natural environment
One of a series of knob- or comb-like projections on the front edge of the gill arch. Gill rakers aid in the fish's feeding. Their shape and number are a good indication of the diet of the fish. Fishes which eat large prey, such as other fishes, have short, widely spaced gill rakers that prevent the prey item from escaping between the gills. Fishes which eat smaller prey have longer, thinner and more numerous gill rakers. Species which feed on plankton have the longest, thinnest and most numerous gill rakers. Gill rakers also protect and clean the gill fillaments. Counts of gill rakers are used as taxonomic characters.
Industry:Natural environment
