A modelling approach to evaluate potential management actions designed to increase growth of white perch in a high-density population

Autor:	Gene R. Wilde, Kevin L. Pope, Christopher J. Chizinski
Rok vydání:	2010
Předmět:	Biomass (ecology) education.field_of_study Perch Ecology biology Population Aquatic Science biology.organism_classification Population density Fishery Population model Morone americana Population growth Growth rate education Demography
Zdroj:	Fisheries Management and Ecology. 17:262-271
ISSN:	1365-2400 0969-997X
DOI:	10.1111/j.1365-2400.2009.00723.x
Popis:	A deterministic, age-structured population model was developed to simulate potential management scenarios designed to increase growth of individuals (quantified by maximum length) in a hypothetical population of white perch, Morone americana (Gmelin). Four scenarios were developed that included non-selective mortality of adult white perch, increased mortality of age groups most influential on population growth, increased age-0 mortality and inhibiting recruitment after spawning. The greatest increase in maximum length occurred with non-selective adult mortality when population biomass was reduced by 97%; lesser increases in maximum length were achieved with the other management scenarios. Populations returned to their original state after control efforts ceased for each scenario.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::84477c9faa7c7745e1d841ea9f9e2031 https://doi.org/10.1111/j.1365-2400.2009.00723.x Zobrazit plný text záznamu Plný text ve formátu PDF