parental biomass

parental biomass
the weight of the adult spawning population of a species. Also called spawning stock biomass

Dictionary of ichthyology. 2009.

Игры ⚽ Нужна курсовая?

Look at other dictionaries:

  • parental biomass — The weight of the adult population of a species; e.g. the weight of all southern bluefin tuna 8 years and older …   Fisheries — dictionary

  • stock-recruitment relationship — The relationship between the level of parental biomass and subsequent recruitment. Determination of this relationship is difficult and usually involves the study of population size age composition, growth and mortality rates …   Fisheries — dictionary

  • survival ratio — ratio of recruits to spawners or parental biomass in a stock recruitment analysis. Changes in survival ratios indicate that the productivity of a stock is changing …   Dictionary of ichthyology

  • SRR — stock recruitment relationship (the relationship between the level of parental biomass, e.g. spawning stock size, and subsequent recruitment level. Difficult to determine accurately) …   Dictionary of ichthyology

  • Ecology — For other uses, see Ecology (disambiguation). Ecology …   Wikipedia

  • Spawn (biology) — The spawn (eggs) of a clownfish. The black spots are the eyes developing. Spawn refers to the eggs and sperm released or deposited, usually into water, by aquatic animals. As a verb, spawn refers to the process of releasing the eggs and sperm,… …   Wikipedia

  • Evolution — This article is about evolution in biology. For other uses, see Evolution (disambiguation). For a generally accessible and less technical introduction to the topic, see Introduction to evolution. Part of a series on …   Wikipedia

  • Life Sciences — ▪ 2009 Introduction Zoology       In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… …   Universalium

  • Common Yellowthroat — Male Fe …   Wikipedia

  • Centipede — For other uses, see Centipede (disambiguation). Centipedes Temporal range: 418–0 Ma …   Wikipedia

Share the article and excerpts

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