stock biomass

stock biomass
total weight of fish in a stock

Dictionary of ichthyology. 2009.

Игры ⚽ Поможем сделать НИР

Look at other dictionaries:

  • spawning stock biomass per recruit — the spawning stock biomass divided by the number of recruits to the stock. It is the expected lifetime contribution to the spawning stock biomass for a recruit of a specific age, e.g. per age 2 individual. Abbreviated as SSB/R …   Dictionary of ichthyology

  • spawning stock biomass pe pecruit — (SSB/R) The expected lifetime contribution to the spawning stock biomass for a recruit of a specific age (e.g., per age 2 individual). For a given exploitation pattern, rate of growth, and natural mortality, an expected equilibrium value of SSB/R …   Fisheries — dictionary

  • spawning stock biomass per recruit — (SSB/R) The expected lifetime contribution to the spawning stock biomass for a recruit of a specific age (e.g., per age 2 individual). For a given exploitation pattern, rate of growth, and natural mortality, an expected equilibrium value of SSB/R …   Fisheries — dictionary

  • spawning stock biomass — the total weight of the fish in a stock that are old enough to spawn; the biomass of all fish beyond the age or size class in which 50% of the individuals are mature. Generally used for females only. May be used instead of measuring egg… …   Dictionary of ichthyology

  • biomass-weighted F — an estimate of fishing mortality in which F estimates for each age group are weighted by corresponding stock biomass at age. Used to make average F estimates from age structured assessments comparable to those obtained from surplus production… …   Dictionary of ichthyology

  • Biomass — refers to living and recently dead biological material that can be used as fuel or for industrial production. Most commonly, biomass refers to plant matter grown to generate electricity or produce biofuel, but it also includes plant or animal… …   Wikipedia

  • spawning stock biomass — The total weight of all mature fish in a population …   Fisheries — dictionary

  • spawning stock biomass per recruit — (SSB/R) The effective spawning output produced by a recruit throughout its life. Each recruit must be able to replace itself to ensure sustainability, and analyses using the SSB/R approach attempt to determine critical levels of fishing effort… …   Fisheries — dictionary

  • spawning stock biomass — (SSB) The total weight of all sexually mature fish in the population. This quantity depends on year class abundance, the exploitation pattern, the rate of growth, fishing and natural mortality rates, the onset of sexual maturity and environmental …   Fisheries — dictionary

  • spawning stock biomass — (SSB) The total weight of all sexually mature fish in the population. This quantity depends on year class abundance, the exploitation pattern, the rate of growth, fishing and natural mortality rates, the onset of sexual maturity and environmental …   Fisheries — dictionary

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”