- Industrie: 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
1. The property of resistance to flow in a fluid or semi fluid. By analogy, in fisheries: the property of resistance of elements of a stock to move and mix together. As a consequence of stock "viscosity," mixing of individuals is neither complete nor instantaneous and the transfer of the local impact of fishing to the entire stock (through directional or turbulent mixing) is a function of the stock´s "viscosity. " If there is zero mixing, the viscosity is infinite. Because of lack of data on mixing rates, the term "viscosity" is often used only in a qualitative fashion.
Industry:Fishing
All waters beyond the Exclusive Economic Zone (EEZ) (>200 nautical miles) of the United States and beyond any foreign nation's EEZ.
Industry:Fishing
A population of fish grouped together for assessment purposes, which may or may not include all the fish in a stock.
Industry:Fishing
A ticket with a discounted fine that is issued to a fisherman prior to the issuance of a notice of violation and assessment (NOVA), offered only in cases where the violation is not contested. Allows violators to quickly resolve their case without incurring the expense of the legal process. Any property that was seized is forfeited by paying the penalty.
Industry:Fishing
A criterion (or indicator, or reference point) that has been formally established and is enforced by an authority.
Industry:Fishing
A situation in which the market is supplied with an unusually large amount of product, which strains the capacity of primary buyers, processors, and wholesalers and causes prices to drop to very low levels.
Industry:Fishing
A statistical criterion for the estimation of parameters in models. Maximum likelihood methods aim to maximize the likelihood (or probability) of having collected the observed data, given predictions from a model. For example, virtual population analysis (VPA) tuning often involves finding the estimates of abundance and mortality rates that maximize the likelihood for the observed standardized catch per unit effort (CPUE). Under some conditions, the methods of maximum likelihood and least squares give similar results.
Industry:Fishing
A component of a stock assessment model, made up of formulations that describe how the population changes from one time period to the next. The types of population models vary depending on the species life history and on data availability. Population models can roughly be classified as age/size structured or biomass-based, deterministic or stochastic, density-dependent or density-independent, spatially structured or spatially aggregated, equilibrium or nonequilibrium.
Industry:Fishing
A macrohabitat comprised of emergent rooted macrophytes in a soft sedimentary substrate tolerant of long periods of partial submersion along the shores of estuaries and sheltered coasts.
Industry:Fishing
