TUNPOP: A simulation of the dynamics and structure of the yellowfin tuna stock and surface fishery of the Eastern Pacific Ocean

Francis, Robert C. (1977) TUNPOP: A simulation of the dynamics and structure of the yellowfin tuna stock and surface fishery of the Eastern Pacific Ocean. Inter-American Tropical Tuna Commission Bulletin, 17(4), pp. 213-269.

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Abstract

ENGLISH: Three distinct versions of TUNP0P, an age-structured computer simulation model of the eastern Pacific yellowfin tuna, Thunnus albacores, stock and surface tuna fishery, are used to reveal mechanisms which appear to have a significant effect on the fishery dynamics. Real data on this fishery are used to make deductions on the distribution of the fish and to show how that distribution might influence events in the fishery. The most important result of the paper is that the concept of the eastern Pacific yellowfin tuna stock as a homogeneous unit is inadequate to represent the recent history of the fishery. Inferences are made on the size and distribution of the underlying stock as well as its potential yield to the surface fishery as a result of alterations in the level and distribution of the effort. SPANISH: Se han empleado tres versiones diferentes de TUNP0P, un modelo de simulación de la computadora (basado en la estructura de la edad) de la población y la pesca epipelágica del atún aleta amarilla, Tbunnus albacares, del Pacífico oriental, para revelar los mecanismos que parecen tener un efecto importante en la dinámica pesquera. Se emplean los datos verdaderos de esta pesca para hacer deducciones sobre la distribución de los peces y para mostrar cómo puede influir esta distribución en los eventos de pesca. La conclusión más importante de este estudio es que el concepto de que la población del aleta amarilla del Pacífico oriental es una unidad homogénea, es inadecuado para representar la historia reciente de pesca. Se teoriza sobre la talla y distribución de la población subyacente como también sobre su producción potencial en la pesca epipelágica al cambiar el nivel y distribución del esfuerzo.

Item Type: Article
Title: TUNPOP: A simulation of the dynamics and structure of the yellowfin tuna stock and surface fishery of the Eastern Pacific Ocean
Personal Creator/Author:
CreatorsEmail
Francis, Robert C.
Journal or Publication Title: Inter-American Tropical Tuna Commission Bulletin
Volume: 17
Number: 4
Page Range: pp. 213-269
Date: 1977
Issuing Agency: Inter-American Tropical Tuna Commission
Additional Information: This article is bilingual and contains both English and Spanish translations.
Uncontrolled Keywords: TUNPOP simulation; dynamics; structure; yellowfin tuna; Eastern Pacific Ocean; TUNP0P simulación; dinámica; estructura; atún aleta amarilla; Océano Pacifico Oriental
Subjects: Fisheries
Item ID: 3363
Depositing User: Joan Parker
Date Deposited: 13 May 2010 11:30
Last Modified: 29 Sep 2011 17:31
URI: http://aquaticcommons.org/id/eprint/3363

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