absolute abundance
the total number of a kind of fish in the population. Usually estimated from relative abundance as it is rarely known

Dictionary of ichthyology. 2009.

Look at other dictionaries:

  • abundance index — data obtained from samples or observations and used as a measure of the weight or number of fish which make up a stock, a segment of a stock such as spawners or in a given area. Most indices are relative units (as opposed to measuring absolute… …   Dictionary of ichthyology

  • abundance — degree of plentifulness. The total number of fish in a population, stock, other group or on a fishing ground. Can be measured in absolute or relative terms and may be number per area or per unit fishing effort …   Dictionary of ichthyology

  • relative abundance — An estimate of actual or absolute abundance; usually stated as some kind of index; for example, as bottom trawl survey stratified mean catch per tow …   Fisheries — dictionary

  • relative abundance — An estimate of actual or absolute abundance; usually stated as some kind of index; for example, as bottom trawl survey stratified mean catch per tow …   Fisheries — dictionary

  • Occupancy-abundance relationship — In macroecology, the occupancy abundance (O A) relationship is the relationship between the abundance of species and the size of their ranges within a region. This relationship is perhaps one of the most well documented relationships in… …   Wikipedia

  • Nucleic acid methods — For protein methods, see Protein methods. Nucleic acid methods are the techniques used to study nucleic acids (DNA and RNA). Purification Phenol chloroform extraction minicolumn purification RNA extraction Quantification Abundance in weight:… …   Wikipedia

  • Fisheries glossary — This is a glossary of terms used in fisheries, fisheries management and fisheries science. A * Abundance is a measure of how many fish are in a population or a fishing ground. See relative abundance and absolute abundance.* Acoustic survey a… …   Wikipedia

  • Transcription (genetics) — Transcription is the process of creating a complementary RNA copy of a sequence of DNA.[1] Both RNA and DNA are nucleic acids, which use base pairs of nucleotides as a complementary language that can be converted back and forth from DNA to RNA by …   Wikipedia

  • Isotopes of oxygen — Late in a massive star s life, 16O concentrates in the O shell, 17O in the H shell and 18O in the He shell There are three stable isotopes of oxygen that lead to oxygen (O) having a standard atomic mass of 15.9994(3) u. 17 radioactive isotopes… …   Wikipedia

  • Müllerian mimicry — The Heliconius butterflies from the tropics of the Western Hemisphere are classic Müllerian mimics.[1] Müllerian mimicry is a natural phenomenon when two or more harmful species, that may or may not be closely related and share one or more common …   Wikipedia

Share the article and excerpts

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