Powered by OpenAIRE graph
Found an issue? Give us feedback
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ Recolector de Cienci...arrow_drop_down
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
DIGITAL.CSIC
Article . 2023
Data sources: DIGITAL.CSIC
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
versions View all 5 versions
addClaim

Dieta de la merluza Merluccius gayi (Guichenot, 1848) del norte de Chile

Authors: Vidal, R.; Acuña, E.; Rey-Méndez, M. (Manuel);

Dieta de la merluza Merluccius gayi (Guichenot, 1848) del norte de Chile

Abstract

Se determina la composición de la dieta de la merluza Merluccius gayi (Guichenot, 1848) en la zona norte de Chile, en el periodo de abril de 1993 a marzo de 1994, mediante muestreos mensuales. Al analizar 1576 estómagos se identificaron 22 taxa-presa y determinaron tres grupos tróficos. El mayor aporte a la dieta estuvo representado por los crustáceos bentónicos, como el camarón de profundidad Heterocarpus reedi (Bahamonde, 1955) y una presa pelágica: Euphausia mucronata (Sars, 1883). A pesar de la significativa ocurrencia de H. reedi en todos los tamaños analizados, las tallas medias de este macrocrustáceo no tienden a aumentar con el tamaño del predador. Se destaca el carácter oportunista de esta especie y la predación selectiva sobre ejemplares de H. reedi que se han concentrado en el área de pesca, comparando estos resultados con los obtenidos en anteriores investigaciones en términos del comportamiento trófico de la merluza.

The diet composition of Merluccius gayi (Guichenot, 1848) off northern Chile was studied between April 1993 and March 1994 with monthly sampling. Twenty-two prey taxa, comprising three trophic groups, were identified in the stomach contents of 1576 fishes. The highest contribution to the diet was constituted by benthic crustaceans, such as the deep-sea shrimp Heterocarpus reedi (Bahamonde, 1955) and the pelagic prey Euphausia mucronata (Sars, 1883). Although the ocurrence of H. reedi was significant in all size ranges analyzed, the mean size of these macrocrustaceans did not increase with predator size. The opportunistic characteristic of this species, and its selective predation on H. reedi individuals that concentrated in the fishing area, is highlighted, comparing the present results with those obtained in previous studies on the trophic behaviour of hake.

Instituto Español de Oceanografía

Country
Spain
Keywords

Pacífico suroriental, Dieta, Pesquerías, Chile, Merluccius gayi

  • BIP!
    Impact byBIP!
    selected citations
    These citations are derived from selected sources.
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    0
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
    OpenAIRE UsageCounts
    Usage byUsageCounts
    visibility views 25
    download downloads 44
  • 25
    views
    44
    downloads
    Powered byOpenAIRE UsageCounts
Powered by OpenAIRE graph
Found an issue? Give us feedback
visibility
download
selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
views
OpenAIRE UsageCountsViews provided by UsageCounts
downloads
OpenAIRE UsageCountsDownloads provided by UsageCounts
0
Average
Average
Average
25
44
Green
Related to Research communities