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• Population_dynamics_of_fisheries abstract "A fishery is an area with an associated fish or aquatic population which is harvested for its commercial or recreational value. Fisheries can be wild or farmed. Population dynamics describes the ways in which a given population grows and shrinks over time, as controlled by birth, death, and migration. It is the basis for understanding changing fishery patterns and issues such as habitat destruction, predation and optimal harvesting rates. The population dynamics of fisheries is used by fisheries scientists to determine sustainable yields.The basic accounting relation for population dynamics is the BIDE (Birth, Immigration, Death, Emigration) model, shown as: N1 = N0 + B − D + I − Ewhere N1 is the number of individuals at time 1, N0 is the number of individuals at time 0, B is the number of individuals born, D the number that died, I the number that immigrated, and E the number that emigrated between time 0 and time 1. While immigration and emigration can be present in wild fisheries, they are usually not measured.A fishery population is affected by three dynamic rate functions: Birth rate or recruitment. Recruitment means reaching a certain size or reproductive stage. With fisheries, recruitment usually refers to the age a fish can be caught and counted in nets.Growth rate. This measures the growth of individuals in size and length. This is important in fisheries where the population is often measured in terms of biomass.Mortality. This includes harvest mortality and natural mortality. Natural mortality includes non-human predation, disease and old age.If these rates are measured over different time intervals, the harvestable surplus of a fishery can be determined. The harvestable surplus is the number of individuals that can be harvested from the population without affecting long term stability (average population size). The harvest within the harvestable surplus is called compensatory mortality, where the harvest deaths are substituting for the deaths that would otherwise occur naturally. Harvest beyond that is additive mortality, harvest in addition to all the animals that would have died naturally.Care is needed when applying population dynamics to real world fisheries. Over-simplistic modelling of fisheries has resulted in the collapse of key stocks.".
• Population_dynamics_of_fisheries thumbnail Moofushi_Kandu_fish.jpg?width=300.
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• Population_dynamics_of_fisheries wikiPageExternalLink Predator-prey_model.
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• Population_dynamics_of_fisheries wikiPageWikiLink Alexander_John_Nicholson.
• Population_dynamics_of_fisheries wikiPageWikiLink Alfred_J._Lotka.
• Population_dynamics_of_fisheries wikiPageWikiLink Algae.
• Population_dynamics_of_fisheries wikiPageWikiLink Allele_frequency.
• Population_dynamics_of_fisheries wikiPageWikiLink Aquatic_animal.
• Population_dynamics_of_fisheries wikiPageWikiLink Arditi–Ginzburg_equations.
• Population_dynamics_of_fisheries wikiPageWikiLink Benjamin_Gompertz.
• Population_dynamics_of_fisheries wikiPageWikiLink Beverton–Holt_model.
• Population_dynamics_of_fisheries wikiPageWikiLink Bill_Ricker.
• Population_dynamics_of_fisheries wikiPageWikiLink Biomass.
• Population_dynamics_of_fisheries wikiPageWikiLink Biomass_(ecology).
• Population_dynamics_of_fisheries wikiPageWikiLink Birth_rate.
• Population_dynamics_of_fisheries wikiPageWikiLink California.
• Population_dynamics_of_fisheries wikiPageWikiLink California_roach.
• Population_dynamics_of_fisheries wikiPageWikiLink Carrying_capacity.
• Population_dynamics_of_fisheries wikiPageWikiLink Category:Fisheries_science.
• Population_dynamics_of_fisheries wikiPageWikiLink Category:Population_ecology.
• Population_dynamics_of_fisheries wikiPageWikiLink Cohort_(statistics).
• Population_dynamics_of_fisheries wikiPageWikiLink Commercial_fishing.
• Population_dynamics_of_fisheries wikiPageWikiLink Competitive_Lotka–Volterra_equations.
• Population_dynamics_of_fisheries wikiPageWikiLink Computer_simulation.
• Population_dynamics_of_fisheries wikiPageWikiLink Conservation_biology.
• Population_dynamics_of_fisheries wikiPageWikiLink Daniel_Pauly.
• Population_dynamics_of_fisheries wikiPageWikiLink Demography.
• Population_dynamics_of_fisheries wikiPageWikiLink Depensation.
• Population_dynamics_of_fisheries wikiPageWikiLink Differential_equation.
• Population_dynamics_of_fisheries wikiPageWikiLink Ecological_niche.
• Population_dynamics_of_fisheries wikiPageWikiLink Ecology.
• Population_dynamics_of_fisheries wikiPageWikiLink Economics.
• Population_dynamics_of_fisheries wikiPageWikiLink Ecosystem_model.
• Population_dynamics_of_fisheries wikiPageWikiLink Eel_River_(California).
• Population_dynamics_of_fisheries wikiPageWikiLink Effective_population_size.
• Population_dynamics_of_fisheries wikiPageWikiLink Evolution_in_Mendelian_Populations.
• Population_dynamics_of_fisheries wikiPageWikiLink Expected_value.
• Population_dynamics_of_fisheries wikiPageWikiLink Fedor_Baranov.
• Population_dynamics_of_fisheries wikiPageWikiLink File:HCR.gif.
• Population_dynamics_of_fisheries wikiPageWikiLink Fish.
• Population_dynamics_of_fisheries wikiPageWikiLink Fish_farming.
• Population_dynamics_of_fisheries wikiPageWikiLink Fish_mortality.
• Population_dynamics_of_fisheries wikiPageWikiLink Fish_stock.
• Population_dynamics_of_fisheries wikiPageWikiLink Fisheries_science.
• Population_dynamics_of_fisheries wikiPageWikiLink Fishery.
• Population_dynamics_of_fisheries wikiPageWikiLink Food_chain.
• Population_dynamics_of_fisheries wikiPageWikiLink Forage_fish.
• Population_dynamics_of_fisheries wikiPageWikiLink Fresh_water.
• Population_dynamics_of_fisheries wikiPageWikiLink Genetic_drift.
• Population_dynamics_of_fisheries wikiPageWikiLink Genetics_(journal).
• Population_dynamics_of_fisheries wikiPageWikiLink Habitat_fragmentation.
• Population_dynamics_of_fisheries wikiPageWikiLink Herbivore.
• Population_dynamics_of_fisheries wikiPageWikiLink Huffakers_mite_experiment.
• Population_dynamics_of_fisheries wikiPageWikiLink Hunting.
• Population_dynamics_of_fisheries wikiPageWikiLink Idealised_population.
• Population_dynamics_of_fisheries wikiPageWikiLink Inbreeding.
• Population_dynamics_of_fisheries wikiPageWikiLink Insect.
• Population_dynamics_of_fisheries wikiPageWikiLink Kelp.
• Population_dynamics_of_fisheries wikiPageWikiLink Kelp_forest.
• Population_dynamics_of_fisheries wikiPageWikiLink Lake.
• Population_dynamics_of_fisheries wikiPageWikiLink Local_extinction.
• Population_dynamics_of_fisheries wikiPageWikiLink Logistic_function.
• Population_dynamics_of_fisheries wikiPageWikiLink Ludwig_von_Bertalanffy.
• Population_dynamics_of_fisheries wikiPageWikiLink Malthusian_growth_model.
• Population_dynamics_of_fisheries wikiPageWikiLink Marginalism.
• Population_dynamics_of_fisheries wikiPageWikiLink Matrix_population_models.
• Population_dynamics_of_fisheries wikiPageWikiLink Maximum_sustainable_yield.
• Population_dynamics_of_fisheries wikiPageWikiLink Mesopredator_release_hypothesis.
• Population_dynamics_of_fisheries wikiPageWikiLink Midge.
• Population_dynamics_of_fisheries wikiPageWikiLink Milner_Baily_Schaefer.
• Population_dynamics_of_fisheries wikiPageWikiLink Mortality_rate.
• Population_dynamics_of_fisheries wikiPageWikiLink Nonlinear_system.
• Population_dynamics_of_fisheries wikiPageWikiLink Normal_distribution.
• Population_dynamics_of_fisheries wikiPageWikiLink Nurgalievs_law.
• Population_dynamics_of_fisheries wikiPageWikiLink Optimum_sustainable_yield.
• Population_dynamics_of_fisheries wikiPageWikiLink Organism.
• Population_dynamics_of_fisheries wikiPageWikiLink Otolith.
• Population_dynamics_of_fisheries wikiPageWikiLink Overexploitation.
• Population_dynamics_of_fisheries wikiPageWikiLink Overfishing.
• Population_dynamics_of_fisheries wikiPageWikiLink Overpopulation.
• Population_dynamics_of_fisheries wikiPageWikiLink Pacific_Ocean.
• Population_dynamics_of_fisheries wikiPageWikiLink Peter_Turchin.
• Population_dynamics_of_fisheries wikiPageWikiLink Phytoplankton.
• Population_dynamics_of_fisheries wikiPageWikiLink Pierre_François_Verhulst.
• Population_dynamics_of_fisheries wikiPageWikiLink Piscivore.
• Population_dynamics_of_fisheries wikiPageWikiLink Population.

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