sample
In ichthyology, a collection of fishes made from a particular locality or specified area.
Used in 8 profiles
Results for “sample”
Ichthyological terms, not general ones.
biomass
The total mass of living matter present in a given individual, habitat, population, or sample.
electrofishing
Method of collecting fishes that uses electricity to stun them, commonly used for sampling populations during scientific surveys. Causes no permanent harm to fishes when carried out properly.
Used in 1 profile
general hardness
Measure of the overall concentration of calcium, magnesium and other ions in a water sample with values usually quoted in units of degrees (dGH), of which 1 dGH corresponds to 17.848 ppm. Also referred to as total or permanent hardness.
Used in 59 profiles
species richness
The number of species present in a given sample, habitat, or otherwise specified geographical region.