Estimations, from tagging experiments, of mortality rates and other parameters respecting yellowfin and skipjack tuna

Fink, Bernard (1965) Estimations, from tagging experiments, of mortality rates and other parameters respecting yellowfin and skipjack tuna. Inter-American Tropical Tuna Commission Bulletin, 10(1), pp. 1-81.

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Abstract

ENGLISH: In this paper, a method of analysis described by Gulland (1963) has been used to estimate the fishing mortality rates of tagged yellowfin and skipjack tuna for specific areas and years. Fishing mortality rates obtained for tagged tunas will also represent those for the entire population from which the tagged fishes were drawn, provided the assumptions used and corrections made for these analyses are valid. Total mortality rates of tagged fishes have also been computed. These are not assumed to be directly equivalent to the total mortality rates of the untagged populations,since tagged fishes are subject to additional types of attrition. These additional sources of mortality are also examined in this study. SPANISH: En el presente trabajo se ha usado un método de análisis descrito por Gulland (1963), para estimar las tasas de mortalidad de pesca de los atunes aleta amarilla y barrilete marcados en áreas y años específicos. Las tasas de mortalidad de pesca obtenidas en atunes marcados representarán también las de toda la población, de la cual fueron extraídos, previendo que las suposiciones usadas y las correcciones hechas para estos análisis sean válidas. Las tasas de mortalidad total de los peces marcados también han sido computadas. No se supone que éstas sean directamente equivalentes a las tasas de mortalidad total de las poblaciones no marcadas, ya que los peces marcados están sujetos también a otros tipos de pérdida. Estas otras causas de mortalidad son examinadas también en el presente estudio.

Item Type: Article
Title: Estimations, from tagging experiments, of mortality rates and other parameters respecting yellowfin and skipjack tuna
Personal Creator/Author:
CreatorsEmail
Fink, BernardD.
Journal or Publication Title: Inter-American Tropical Tuna Commission Bulletin
Volume: 10
Number: 1
Page Range: pp. 1-81
Date: 1965
Issuing Agency: Inter-American Tropical Tuna Commission
Additional Information: This article is bilingual and contains both English and Spanish translations.
Uncontrolled Keywords: tuna, tagging, fishery, mortality rate, atún, marcación, pesquería, tasas de mortalidad
Subjects: Fisheries
Item ID: 2016
Depositing User: Joan Parker
Date Deposited: 16 Apr 2009 13:10
Last Modified: 29 Sep 2011 19:49
URI: http://aquaticcommons.org/id/eprint/2016

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