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

[EN] 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 pr...

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Published in:Scientia Marina
Main Authors: Olaso, Ignacio, Lombarte, Antoni, Velasco, Francisco
Format: Article in Journal/Newspaper
Language:English
Published: CSIC - Instituto de Ciencias del Mar (ICM) 2004
Subjects:
Online Access:http://hdl.handle.net/10261/5524
https://doi.org/10.3989/scimar.2004.68n3419
id ftcsic:oai:digital.csic.es:10261/5524
record_format openpolar
spelling ftcsic:oai:digital.csic.es:10261/5524 2024-02-11T09:58:51+01:00 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 118636 bytes application/pdf http://hdl.handle.net/10261/5524 https://doi.org/10.3989/scimar.2004.68n3419 en eng CSIC - Instituto de Ciencias del Mar (ICM) https://doi.org/10.3989/scimar.2004.68n3419 Scientia Marina 68(3): 419-424 (2004) 0214-8358 http://hdl.handle.net/10261/5524 doi:10.3989/scimar.2004.68n3419 1886-8134 open Daily ration Evacuation rate Antarctic Pelagic fish Temperatures Proporción diaria de alimento Tasa de evacuación gástrica Antártica Pez pelágico Temperatura artículo http://purl.org/coar/resource_type/c_6501 2004 ftcsic https://doi.org/10.3989/scimar.2004.68n3419 2024-01-16T09:19:55Z [EN] 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 [ES] 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 This work was conducted under the SCAR EASIZ programme, and was supported by the Alfred Wegener Institute and the Spanish Antarctic Programme Peer reviewed Article in Journal/Newspaper Antarc* Antarctic Antarctic silverfish Antártica Mar de Weddell Weddell Sea Digital.CSIC (Spanish National Research Council) 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 Digital.CSIC (Spanish National Research Council)
op_collection_id ftcsic
language English
topic Daily ration
Evacuation rate
Antarctic
Pelagic fish
Temperatures
Proporción diaria de alimento
Tasa de evacuación gástrica
Antártica
Pez pelágico
Temperatura
spellingShingle Daily ration
Evacuation rate
Antarctic
Pelagic fish
Temperatures
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
Temperatures
Proporción diaria de alimento
Tasa de evacuación gástrica
Antártica
Pez pelágico
Temperatura
description [EN] 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 [ES] 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 This work was conducted under the SCAR EASIZ programme, and was supported by the Alfred Wegener Institute and the Spanish Antarctic Programme Peer reviewed
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 CSIC - Instituto de Ciencias del Mar (ICM)
publishDate 2004
url http://hdl.handle.net/10261/5524
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_relation https://doi.org/10.3989/scimar.2004.68n3419
Scientia Marina 68(3): 419-424 (2004)
0214-8358
http://hdl.handle.net/10261/5524
doi:10.3989/scimar.2004.68n3419
1886-8134
op_rights open
op_doi https://doi.org/10.3989/scimar.2004.68n3419
container_title Scientia Marina
container_volume 68
container_issue 3
container_start_page 419
op_container_end_page 424
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