Daily ration of Antarctic silverfish (Pleuragramma antarcticum Boulenger, 1902) in the Eastern Weddell Sea

The daily ration of Pleuragramma antarcticum in the Eastern Weddell Sea was investigated from midwater and bottom trawl samples collected in the Antarctic in the summer of 1998. Using a gastric evacuation model that takes into account Weddell Sea temperature below zero and information on the prey ty...

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Published in:Scientia Marina
Main Authors: Olaso, Ignacio, Lombarte, Antoni, Velasco, Francisco
Format: Article in Journal/Newspaper
Language:English
Published: Consejo Superior de Investigaciones Científicas 2004
Subjects:
Online Access:https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/399
https://doi.org/10.3989/scimar.2004.68n3419
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spelling ftjscientiamarin:oai:scientiamarina.revistas.csic.es:article/399 2023-05-15T13:41:51+02:00 Daily ration of Antarctic silverfish (Pleuragramma antarcticum Boulenger, 1902) in the Eastern Weddell Sea Proporción diaria de alimento del diablillo Antártico (Pleuragramma antarcticum Boulenger, 1902) en el este del mar de Weddell Olaso, Ignacio Lombarte, Antoni Velasco, Francisco 2004-09-30 application/pdf https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/399 https://doi.org/10.3989/scimar.2004.68n3419 eng eng Consejo Superior de Investigaciones Científicas https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/399/400 https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/399 doi:10.3989/scimar.2004.68n3419 Copyright (c) 2004 Consejo Superior de Investigaciones Científicas (CSIC) https://creativecommons.org/licenses/by/4.0 CC-BY Scientia Marina; Vol. 68 No. 3 (2004); 419-424 Scientia Marina; Vol. 68 Núm. 3 (2004); 419-424 1886-8134 0214-8358 10.3989/scimar.2004.68n3 daily ration evacuation rate Antarctic pelagic fish temperature proporción diaria de alimento tasa de evacuación gástrica Antártica pez pelágico temperatura info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed article Artículo revisado por pares 2004 ftjscientiamarin https://doi.org/10.3989/scimar.2004.68n3419 https://doi.org/10.3989/scimar.2004.68n3 2022-03-20T16:30:24Z The daily ration of Pleuragramma antarcticum in the Eastern Weddell Sea was investigated from midwater and bottom trawl samples collected in the Antarctic in the summer of 1998. Using a gastric evacuation model that takes into account Weddell Sea temperature below zero and information on the prey type daily ration estimates were: 1.133% BW for immature fish of 10-16 cm and 0.484% BW for mature fish of 17-24 cm. The low daily ration intake was influenced by the low temperatures that limited the rate of gastric evacuation. This model seems more realistic than results from the classic Elliot & Persson and Eggers models that are also used in this paper, since their assumptions on feeding regularity are more rigid and they do not consider data of energy density of the prey. La ración diaria de alimento de Pleuragramma antarcticum en el mar de Weddell es investigada en muestras de arrastres de fondo y pelágicas recogidas durante diferentes horas del día en el verano antártico de 1998. Utilizando un modelo de evacuación gástrica que tiene en cuenta la temperatura bajo del Mar de Weddell e información sobre el tipo de presa, las estimaciones de consumo diario fueron: 1.133% BW para peces inmaduros entre 10 -16 cm y 0.484% BW para peces maduros entre 17-24 cm. La baja ración diaria ingerida estuvo influida por las bajas temperaturas que limitan la tasa de evacuación gástrica. Este modelo parece más realista que los resultados de los modelos clásicos de Elliot & Persson and Eggers también empleados, ya que sus asunciones sobre su periodicidad de alimentación son más rígidas y no consideran datos de densidad energética de las presas. Article in Journal/Newspaper Antarc* Antarctic Antarctic silverfish Antártica Mar de Weddell Weddell Sea Scientia Marina (E-Journal) Antarctic The Antarctic Weddell Sea Baja Weddell Elliot ENVELOPE(166.533,166.533,-70.883,-70.883) Persson ENVELOPE(-58.400,-58.400,-64.200,-64.200) mar de Weddell ENVELOPE(-36.000,-36.000,-54.601,-54.601) Scientia Marina 68 3 419 424
institution Open Polar
collection Scientia Marina (E-Journal)
op_collection_id ftjscientiamarin
language English
topic daily ration
evacuation rate
Antarctic
pelagic fish
temperature
proporción diaria de alimento
tasa de evacuación gástrica
Antártica
pez pelágico
temperatura
spellingShingle daily ration
evacuation rate
Antarctic
pelagic fish
temperature
proporción diaria de alimento
tasa de evacuación gástrica
Antártica
pez pelágico
temperatura
Olaso, Ignacio
Lombarte, Antoni
Velasco, Francisco
Daily ration of Antarctic silverfish (Pleuragramma antarcticum Boulenger, 1902) in the Eastern Weddell Sea
topic_facet daily ration
evacuation rate
Antarctic
pelagic fish
temperature
proporción diaria de alimento
tasa de evacuación gástrica
Antártica
pez pelágico
temperatura
description The daily ration of Pleuragramma antarcticum in the Eastern Weddell Sea was investigated from midwater and bottom trawl samples collected in the Antarctic in the summer of 1998. Using a gastric evacuation model that takes into account Weddell Sea temperature below zero and information on the prey type daily ration estimates were: 1.133% BW for immature fish of 10-16 cm and 0.484% BW for mature fish of 17-24 cm. The low daily ration intake was influenced by the low temperatures that limited the rate of gastric evacuation. This model seems more realistic than results from the classic Elliot & Persson and Eggers models that are also used in this paper, since their assumptions on feeding regularity are more rigid and they do not consider data of energy density of the prey. La ración diaria de alimento de Pleuragramma antarcticum en el mar de Weddell es investigada en muestras de arrastres de fondo y pelágicas recogidas durante diferentes horas del día en el verano antártico de 1998. Utilizando un modelo de evacuación gástrica que tiene en cuenta la temperatura bajo del Mar de Weddell e información sobre el tipo de presa, las estimaciones de consumo diario fueron: 1.133% BW para peces inmaduros entre 10 -16 cm y 0.484% BW para peces maduros entre 17-24 cm. La baja ración diaria ingerida estuvo influida por las bajas temperaturas que limitan la tasa de evacuación gástrica. Este modelo parece más realista que los resultados de los modelos clásicos de Elliot & Persson and Eggers también empleados, ya que sus asunciones sobre su periodicidad de alimentación son más rígidas y no consideran datos de densidad energética de las presas.
format Article in Journal/Newspaper
author Olaso, Ignacio
Lombarte, Antoni
Velasco, Francisco
author_facet Olaso, Ignacio
Lombarte, Antoni
Velasco, Francisco
author_sort Olaso, Ignacio
title Daily ration of Antarctic silverfish (Pleuragramma antarcticum Boulenger, 1902) in the Eastern Weddell Sea
title_short Daily ration of Antarctic silverfish (Pleuragramma antarcticum Boulenger, 1902) in the Eastern Weddell Sea
title_full Daily ration of Antarctic silverfish (Pleuragramma antarcticum Boulenger, 1902) in the Eastern Weddell Sea
title_fullStr Daily ration of Antarctic silverfish (Pleuragramma antarcticum Boulenger, 1902) in the Eastern Weddell Sea
title_full_unstemmed Daily ration of Antarctic silverfish (Pleuragramma antarcticum Boulenger, 1902) in the Eastern Weddell Sea
title_sort daily ration of antarctic silverfish (pleuragramma antarcticum boulenger, 1902) in the eastern weddell sea
publisher Consejo Superior de Investigaciones Científicas
publishDate 2004
url https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/399
https://doi.org/10.3989/scimar.2004.68n3419
long_lat ENVELOPE(166.533,166.533,-70.883,-70.883)
ENVELOPE(-58.400,-58.400,-64.200,-64.200)
ENVELOPE(-36.000,-36.000,-54.601,-54.601)
geographic Antarctic
The Antarctic
Weddell Sea
Baja
Weddell
Elliot
Persson
mar de Weddell
geographic_facet Antarctic
The Antarctic
Weddell Sea
Baja
Weddell
Elliot
Persson
mar de Weddell
genre Antarc*
Antarctic
Antarctic silverfish
Antártica
Mar de Weddell
Weddell Sea
genre_facet Antarc*
Antarctic
Antarctic silverfish
Antártica
Mar de Weddell
Weddell Sea
op_source Scientia Marina; Vol. 68 No. 3 (2004); 419-424
Scientia Marina; Vol. 68 Núm. 3 (2004); 419-424
1886-8134
0214-8358
10.3989/scimar.2004.68n3
op_relation https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/399/400
https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/399
doi:10.3989/scimar.2004.68n3419
op_rights Copyright (c) 2004 Consejo Superior de Investigaciones Científicas (CSIC)
https://creativecommons.org/licenses/by/4.0
op_rightsnorm CC-BY
op_doi https://doi.org/10.3989/scimar.2004.68n3419
https://doi.org/10.3989/scimar.2004.68n3
container_title Scientia Marina
container_volume 68
container_issue 3
container_start_page 419
op_container_end_page 424
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