- Industrie: Government
- Number of terms: 30456
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NOAA Coral Reef Conservation Program, National Oceanic and Atmospheric Administration, U.S. Department of Commerce
Coded-wire tags are small pieces of stainless steel wire that are injected into the snouts of juvenile salmon and steelhead. Each tag is etched with a binary code that identifies its release group.
Industry:Fishing
1. The total weight of all fish (both males and females) in the population that contribute to reproduction. Often conventionally defined as the biomass of all individuals beyond "age at first maturity" or "size at first maturity," i.e. beyond the age or size class in which 50 percent of the individuals are mature; 2. The total biomass of fish of reproductive age during the breeding season of a stock.
Industry:Fishing
An appraisal of exploitation is given for each stock using the terms unknown, protected, not exploited, underexploited, moderately exploited, fully exploited, and overexploited. These terms describe the effect of current fishing effort on each stock, and are based on current data and the knowledge of the stocks over time.
Industry:Fishing
Aggregation of fish that move together as a group. It is usually considered that schooling reduces the impact of predation. Schools can be themselves aggregated in concentrations.
Industry:Fishing
Estimates of discards can be made in a variety of ways, including samples from observers and logbook records.
Industry:Fishing
A stock driven by fishing to very low level of abundance compared to historical levels, with dramatically reduced spawning biomass and reproductive capacity. It requires particularly energetic rebuilding strategies and its recovery time will depend on the present condition, the level of protection, and the environmental conditions.
Industry:Fishing
An adolescent salmon which has metamorphosed and which is found on its way downstream toward the sea.
Industry:Fishing
A value that quantifies how much a population can grow between successive time periods. The intrinsic growth rate is often estimated with production models and plays an important role in evaluating the sustainability of different harvest levels and the capacity to recover after depletion.
Industry:Fishing
A "constant" or numerical description of some property of a population (which may be real or imaginary).
Industry:Fishing
