recruitment overfishing — The rate of fishing above which the recruitment to the exploitable stock becomes significantly reduced. This is characterized by a greatly reduced spawning stock, a decreasing proportion of older fish in the catch, and generally very low… … Fisheries — dictionary
recruitment overfishing — The rate of fishing above which the recruitment to the exploitable stock becomes significantly reduced. This is characterized by a greatly reduced spawning stock, a decreasing proportion of older fish in the catch, and generally very low… … Fisheries — dictionary
recruitment overfishing — Occurs in circumstances where an increase in fishing effort from current levels will cause a decline in recruitment to the fishery … Fisheries — dictionary
overfishing — 1) a level of fishing effort or fishing mortality such that a reduction of this level would, in the medium term, lead to an increase in the total catch. For long lived species, overfishing starts well before the stock becomes overfished. See also … Dictionary of ichthyology
overfishing — Current fishing levels may not be sustainable, and yields may be higher in the long term if the fishing level is reduced in the short term. This may be due either to growth overfishing or recruitment overfishing. Classification of a stock as… … Fisheries — dictionary
growth overfishing — the rate of fishing, as indicated by an equilibrium yield per recruit curve, greater than which the losses in weight from total mortality exceed the gain in weight due to growth. This point is defined as Fmax. It means that individual fish are… … Dictionary of ichthyology
biological overfishing — fishing levels higher than those required for extracting the maximum sustainable yield of a resource and when recruitment starts to decrease statistically. Spawning potential and stock biomass is below safe levels … Dictionary of ichthyology
biological reference points — Indicators or signposts against which the status of a stock can be judged. Two types are often used: based on fishing mortality and based on the sustainability of recruitment. Reference points can be either desirable targets (target reference… … Fisheries — dictionary
biological reference point — a fishing mortality rate or biomass that may provide acceptable protection against growth overfishing and/or recruitment overfishing for a particular stock. It is usually calculated from equilibrium yield per recruit curves, spawning stock… … Dictionary of ichthyology
Murray cod — Conservation status Critically Endangered … Wikipedia
