Simulation stochastique des structures démographiques. Application aux populations d'albacores, Thunnus albacares

Fonténeau, A. (1974) Simulation stochastique des structures démographiques. Application aux populations d'albacores, Thunnus albacares. Documents Scientifiques, Centre de Recherches Océanographiques, Abidjan, 5(3-4), pp. 53-62.

[img]
Preview
PDF (The document's language is French .) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
Download (395Kb) | Preview

Abstract

A computer program has been written in order to generate a population of fishes following a Von Bertalanffy growth curve with a random Gaussian variability for birth dates and growth parameters K and L ∞. Standard deviations for these 3 parameters are chosen separately for each run. Fishing and natural mortalities are applied to this population. Using as an input parameters usually taken for yellowfin in the eastern Atlantic, the simulation suggests a standard deviation between 1 and 2 months for the birth dates in this population. It also indicates that increasing levels of fishing mortalities must produce a better agreement between age and length for the larger fish.

Item Type: Article
Title: Simulation stochastique des structures démographiques. Application aux populations d'albacores, Thunnus albacares
Personal Creator/Author:
CreatorsEmail
Fonténeau, A.
Journal or Publication Title: Documents Scientifiques, Centre de Recherches Océanographiques, Abidjan
Volume: 5
Number: 3-4
Page Range: pp. 53-62
Date: December 1974
Issuing Agency: Centre de Recherches Océanographiques, Côte d'Ivoire
Uncontrolled Keywords: Côte d'Ivoire; Thunnus albacares; yellow fin tuna; stock assessment; stochastic simulation; population dynamics
Subjects: Ecology
Fisheries
Management
Item ID: 8011
Depositing User: Ms Maria Kalentsits
Date Deposited: 08 Mar 2012 12:42
Last Modified: 08 Mar 2012 12:42
URI: http://aquaticcommons.org/id/eprint/8011

Actions (login required)

View Item View Item

Document Downloads

More statistics for this item...