- Industry: Government
- Number of terms: 30456
- Number of blossaries: 0
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NOAA Coral Reef Conservation Program, National Oceanic and Atmospheric Administration, U.S. Department of Commerce
Location defines a geographically or ecologically distinct area in which a single event (e.g. pollution) will soon affect all individuals of the taxon present. A location usually, but not always, contains all or part of a subpopulation of the taxon, and is typically a small proportion of the taxon's total distribution.
Industry:Fishing
The practice of removing fins and discarding the carcass, usually pertaining to sharks.
Industry:Fishing
Of or belonging to the pinnipedia, a suborder of carnivorous aquatic mammals that includes the seals, walruses, and similar animals having finlike flippers used for locomotion.
Industry:Fishing
Form of selective sorting of fish in which higher value, more marketable fish are retained and fish that could be legally retained, but are less marketable, are discarded.
Industry:Fishing
Invertebrates with a soft, unsegmented body, a muscular foot, and, with some exceptions, a calcareous shell. Includes the oyster, clam, mussel, snail, conch, scallop, squid, and octopus.
Industry:Fishing
From research vessel surveys, for separate species of fish, each average catch per tow, determined from a series of tows, in each geographic stratum of a region is multiplied by that area (square nautical miles) of the stratum in which the tows are made. All of the individual products are added together and the total is divided by the sum of the entire area of the region. The final result is stratified mean catch per tow; this is used as an index of relative abundance. For example, a scientist wishes to calculate the stratified mean catch per tow of cod in a region (perhaps Georges Bank) that measures 100 square nautical miles. The region has been divided into 5 strata on the basis of depth. In each stratum, 5 tows are made and the average catch of cod is calculated.
Industry:Fishing
The proportion of a population at the beginning of a given time period that is caught during that time period (usually expressed on a yearly basis). For example, if 720,000 fish were caught during the year from a population of 1 million fish alive at the beginning of the year, the annual exploitation rate would be 0. 72.
Industry:Fishing
The distribution of fishing mortality over the age composition of the fish population, determined by the type of fishing gear, area and seasonal distribution of fishing, and the growth and migration of the fish. The pattern can be changed by modifications to fishing gear; for example, increasing mesh or hook size, or by changing the ratio of harvest by gears exploiting the fish (e.g. gillnet, trawl, hook and line, etc. ).
Industry:Fishing
Mathematical formulae that simulate the interaction between biological behavior of fish stocks and human behavior of users of the resource as it is shaped by economic factors.
Industry:Fishing
The plant and animal life characteristic of a specific region or biosphere, or given time period.
Industry:Fishing
