Measures of population density and concentration of fishing effort for yellowfin and skipjack tuna in the eastern Tropical Pacific Ocean 1951-1959

ENGLISH: In a previous Bulletin of this Commission, Griffiths (1960) discussed two indices of population density and an index of concentration of fishing effort of bait boats for yellowfin tuna in the Eastern Tropical Pacific for the 1951-1956 period. Yellowfin and skipjack tuna occur in the same general fishing areas and many of the commercial catches are composed of a mixture of the two species. It is desirable, therefore, to extend the investigation to skipjack and to the two species combined.SPANISH:En un Boletín anterior de esta Comisión, Griffiths (1960) se refiere a dos índices de la densidad de la población y a un índice de la concentración del esfuerzo de pesca de los barcos de carnada sobre el atún aleta amarilla en el Pacífico Oriental Tropical, correspondientes al período 1951-1956. Los atunes aleta amarilla y barrilete se encuentran en las mismas áreas generales de pesca y muchas de las pescas comerciales están compuestas de una mezcla de las dos especies. Es deseable, por lo tanto, ampliar la investigación en lo que se refiere al barrilete y a las dos especies combinadas.

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Bibliographic Details
Main Author: Calkins, Thomas P.
Format: article biblioteca
Language:English
Published: 1961
Subjects:Fisheries, density, fishing effort, yellowfin tuna, Neothunnus macropterus, skipjack tuna, Katsuwonus pelamis, eastern Tropical Pacific Ocean, densidad, esfuerzo de pesca, atunes aleta amarilla, barrilete, Océano Pacífico Oriental Tropical,
Online Access:http://hdl.handle.net/1834/20378
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spelling dig-aquadocs-1834-203782021-06-25T03:12:58Z Measures of population density and concentration of fishing effort for yellowfin and skipjack tuna in the eastern Tropical Pacific Ocean 1951-1959 Medidas de la densidad de las poblaciones de los atunes aleta amarilla y barrilete del Océano Pacífico Oriental Tropical y de la concentración del esfuerzo de pesca sobre estas especies, 1951-1959 Calkins, Thomas P. Fisheries density fishing effort yellowfin tuna Neothunnus macropterus skipjack tuna Katsuwonus pelamis eastern Tropical Pacific Ocean densidad esfuerzo de pesca atunes aleta amarilla barrilete Océano Pacífico Oriental Tropical ENGLISH: In a previous Bulletin of this Commission, Griffiths (1960) discussed two indices of population density and an index of concentration of fishing effort of bait boats for yellowfin tuna in the Eastern Tropical Pacific for the 1951-1956 period. Yellowfin and skipjack tuna occur in the same general fishing areas and many of the commercial catches are composed of a mixture of the two species. It is desirable, therefore, to extend the investigation to skipjack and to the two species combined.SPANISH:En un Boletín anterior de esta Comisión, Griffiths (1960) se refiere a dos índices de la densidad de la población y a un índice de la concentración del esfuerzo de pesca de los barcos de carnada sobre el atún aleta amarilla en el Pacífico Oriental Tropical, correspondientes al período 1951-1956. Los atunes aleta amarilla y barrilete se encuentran en las mismas áreas generales de pesca y muchas de las pescas comerciales están compuestas de una mezcla de las dos especies. Es deseable, por lo tanto, ampliar la investigación en lo que se refiere al barrilete y a las dos especies combinadas. This article is bilingual and contains both Spanish and English translations. 2021-06-24T15:23:39Z 2021-06-24T15:23:39Z 1961 article http://hdl.handle.net/1834/20378 en application/pdf application/pdf 69-152 http://aquaticcommons.org/id/eprint/2580 8 2011-09-29 18:55:18 2580 Inter-American Tropical Tuna Commission
institution UNESCO
collection DSpace
country Francia
countrycode FR
component Bibliográfico
access En linea
databasecode dig-aquadocs
tag biblioteca
region Europa del Oeste
libraryname Repositorio AQUADOCS
language English
topic Fisheries
density
fishing effort
yellowfin tuna
Neothunnus macropterus
skipjack tuna
Katsuwonus pelamis
eastern Tropical Pacific Ocean
densidad
esfuerzo de pesca
atunes aleta amarilla
barrilete
Océano Pacífico Oriental Tropical
Fisheries
density
fishing effort
yellowfin tuna
Neothunnus macropterus
skipjack tuna
Katsuwonus pelamis
eastern Tropical Pacific Ocean
densidad
esfuerzo de pesca
atunes aleta amarilla
barrilete
Océano Pacífico Oriental Tropical
spellingShingle Fisheries
density
fishing effort
yellowfin tuna
Neothunnus macropterus
skipjack tuna
Katsuwonus pelamis
eastern Tropical Pacific Ocean
densidad
esfuerzo de pesca
atunes aleta amarilla
barrilete
Océano Pacífico Oriental Tropical
Fisheries
density
fishing effort
yellowfin tuna
Neothunnus macropterus
skipjack tuna
Katsuwonus pelamis
eastern Tropical Pacific Ocean
densidad
esfuerzo de pesca
atunes aleta amarilla
barrilete
Océano Pacífico Oriental Tropical
Calkins, Thomas P.
Measures of population density and concentration of fishing effort for yellowfin and skipjack tuna in the eastern Tropical Pacific Ocean 1951-1959
description ENGLISH: In a previous Bulletin of this Commission, Griffiths (1960) discussed two indices of population density and an index of concentration of fishing effort of bait boats for yellowfin tuna in the Eastern Tropical Pacific for the 1951-1956 period. Yellowfin and skipjack tuna occur in the same general fishing areas and many of the commercial catches are composed of a mixture of the two species. It is desirable, therefore, to extend the investigation to skipjack and to the two species combined.SPANISH:En un Boletín anterior de esta Comisión, Griffiths (1960) se refiere a dos índices de la densidad de la población y a un índice de la concentración del esfuerzo de pesca de los barcos de carnada sobre el atún aleta amarilla en el Pacífico Oriental Tropical, correspondientes al período 1951-1956. Los atunes aleta amarilla y barrilete se encuentran en las mismas áreas generales de pesca y muchas de las pescas comerciales están compuestas de una mezcla de las dos especies. Es deseable, por lo tanto, ampliar la investigación en lo que se refiere al barrilete y a las dos especies combinadas.
format article
topic_facet Fisheries
density
fishing effort
yellowfin tuna
Neothunnus macropterus
skipjack tuna
Katsuwonus pelamis
eastern Tropical Pacific Ocean
densidad
esfuerzo de pesca
atunes aleta amarilla
barrilete
Océano Pacífico Oriental Tropical
author Calkins, Thomas P.
author_facet Calkins, Thomas P.
author_sort Calkins, Thomas P.
title Measures of population density and concentration of fishing effort for yellowfin and skipjack tuna in the eastern Tropical Pacific Ocean 1951-1959
title_short Measures of population density and concentration of fishing effort for yellowfin and skipjack tuna in the eastern Tropical Pacific Ocean 1951-1959
title_full Measures of population density and concentration of fishing effort for yellowfin and skipjack tuna in the eastern Tropical Pacific Ocean 1951-1959
title_fullStr Measures of population density and concentration of fishing effort for yellowfin and skipjack tuna in the eastern Tropical Pacific Ocean 1951-1959
title_full_unstemmed Measures of population density and concentration of fishing effort for yellowfin and skipjack tuna in the eastern Tropical Pacific Ocean 1951-1959
title_sort measures of population density and concentration of fishing effort for yellowfin and skipjack tuna in the eastern tropical pacific ocean 1951-1959
publishDate 1961
url http://hdl.handle.net/1834/20378
work_keys_str_mv AT calkinsthomasp measuresofpopulationdensityandconcentrationoffishingeffortforyellowfinandskipjacktunaintheeasterntropicalpacificocean19511959
AT calkinsthomasp medidasdeladensidaddelaspoblacionesdelosatunesaletaamarillaybarriletedeloceanopacificoorientaltropicalydelaconcentraciondelesfuerzodepescasobreestasespecies19511959
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