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Gene flow
| Fisheries glossary |
The movement of genes from one population to the other through movement of individuals between those populations.
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Flow, английский
- Flux;débit
- Поток, течение
- Поток (в снс; учитываемая за определенный период или на определенную дату экономическая операция — по отношению к доходам, расходам, обязательствам и др.)
- 1. a movement of liquid or gas they used a tourniquet to try to stop the flow of blood. 2. the amount of liquid or gas which is moving the meter measures the flow of water through the pipe.
- N поток information ~ поток информации
- Поток
- In tidology, the rising of the tide; the opposite of ebb. also, the course or direction of running waters.
- Said of an incoming tide.
- Describes the smooth surface characteristics of the powder coating
Flow, английский
Flow, английский
Flow, английский
Flow, английский
Flow (measured), английский
Flow (stream), английский
Flow a t tenua t i on, английский
Flow agent, английский
Flow analysis, английский
Анализ потоков
Flow and return, английский
Flow area, английский
Площадь живого сечения потока
Flow au gmen ta t i on, английский
Flow augmenting, английский
Увеличение потока
Flow balancing, английский
Flow banding, английский
Flow box, английский
Flow brazing, английский
Flow breaks away on the upper surface, английский
Flow breccia, английский
Flow brightening, английский
Population, английский
- A definable set of individual units to which the findings from statistical examination of a sample subset are intended to be applied. the population will generally much outnumber the sample. in re-randomisation statistics the process of applying inference
- See stock.
- A collection of units being studied. units can be people, places, objects, epochs, drugs, procedures, or many other things. much of statistics is concerned with estimating numerical properties (parameters) of an entire population from a random sample of units from the population.
- A group or number of people living within a specified area or sharing similar characteristics (such as occupation or age).
- Население; народонаселение; генеральная совокупность (в выборочном наблюдении); популяция (биол)
- Население
- 1. the number of people living in a country or town population statistics show that the birth rate is slowing down. the government has decided to screen the whole population of the area. 2. the number of patients in hospital the hospital population in the area has fallen below 10,000.
- Популяция
- Население; популяция -
- Популяция. в клинических исследованиях совокупность субъектов, обладающих какими-либо одинаковыми признаками (пол, возраст, диагноз).
- Население; популяция
- Any group of individuals, usually of a single species, occupying a given area at the same time; groups of organisms with homologue (same) alleles. p. cycle: changes in the numbers of individuals in a population which repeatedly oscillate between periods of high and low density. p. density: allowing a mathematically precise reflection - pd. • absolute: pd = number of individuals/unit area or volume [1/m2] or [1/m3] • relative: pd allows only a simple comparison (pd <, =, >, ? etc.). p. dynamics: the variations in time and space in the sizes and densities of populations; distribution due to changing food resources - the stability of a population depends upon abiotic factors, intraspecific competition (density dependent), natality, mortality etc. p. ecology: the study of the variations in time and space in the sizes and densities of populations, and of the factors causing those variations. p. fluctuation: variations over time in the size of a population. p. growth: is zero, when the birth rate equals the death rate (see carrying capacity). nt+1 = nt + r nt, current number of individuals r = (natality + immigration) - (mortality+emigration) r, intrinsic rate of growth (see density) p. pyramid: a means of illustrating the age structure of a population diagrammatically, by placing the youngest age class at the base and stacking successive age classes above it. p. regulation : a tendency in a population for some factor to cause density to increase when it is low and to decrease nt, momentary number of individuals when it is high. n0, number of individuals at start
- Generally, a collection of individuals with common characteristics. in statistics, a potentially infinite collection of independent (->independence) units that include all units of a specified type with attention paid only to the agggregate (->aggregation) property of the collection. a sample of data drawn from this population is a subset of the units constituting this population and scientific generalizations from such samples are limited by the size of the population originally specified (->model, ->representation).
- The process of scanning content to compile and maintain an index.
- Fish of the same species inhabiting a specified geographic area.
Individual, английский
Физическое лицо
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Fecundity, английский
- The number of eggs a fish produces each reproductive cycle; the potential reproductive capacity of an organism or population. fecundity changes with the age and size of the fish.
- The ability to produce offspring. high fecundity means the ability to produce progeny rapidly and in large numbers. in the demography of human populations, fecundity is the physiological ability to reproduce, as opposed to fertility.
Maximum sustainable yield (msy), английский
- The maximum catch that can be taken from a species' stock over an indefinite period. under the assumption of logistic growth, the msy will be exactly at half the carrying capacity of a species, as this is the stage at when population growth is highest. th
- The largest average catch that can be taken continuously (sustained) from a stock under average environmental conditions.
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