Seasonal limnetic feeding regime of the “robalo” Eleginops maclovinus (Valenciennes 1830), in the Valdivia river, Chile Regimen estacional de alimentación limnética en el “robalo” Eleginops maclovinus (Valenciennes 1830), en el río Valdivia, Chile
The “robalo” Eleginops maclovinus (Valenciennes 1830) is a common fsh in the littoral, estuaries and rivers (under tidal effects zone) of southern South América, including the Falkland islands. The feeding habits of this species is known mainly in the two frst mentioned habitats, where it consumes m...
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ftdoajarticles:oai:doaj.org/article:686c011990c540d0a8a24c7d73a4d3ec 2023-05-15T13:34:19+02:00 Seasonal limnetic feeding regime of the “robalo” Eleginops maclovinus (Valenciennes 1830), in the Valdivia river, Chile Regimen estacional de alimentación limnética en el “robalo” Eleginops maclovinus (Valenciennes 1830), en el río Valdivia, Chile Germán Pequeño Héctor Pavés Carlos Bertrán Luis Vargas-Chacoff 2010-01-01T00:00:00Z https://doaj.org/article/686c011990c540d0a8a24c7d73a4d3ec EN ES eng spa Universidad de Concepción http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382010000100008 https://doaj.org/toc/0717-652X https://doaj.org/toc/0717-6538 0717-652X 0717-6538 https://doaj.org/article/686c011990c540d0a8a24c7d73a4d3ec Gayana, Vol 74, Iss 1, Pp 47-56 (2010) Feeding seasonality Eleginopsidae physiological versatility Chile Alimentación estacionalidad versatilidad fisiológica Oceanography GC1-1581 Zoology QL1-991 article 2010 ftdoajarticles 2022-12-31T12:49:59Z The “robalo” Eleginops maclovinus (Valenciennes 1830) is a common fsh in the littoral, estuaries and rivers (under tidal effects zone) of southern South América, including the Falkland islands. The feeding habits of this species is known mainly in the two frst mentioned habitats, where it consumes mostly animals from marine and estuarine origin. However, little is known about its seasonal feeding habits in limnetic environments. It is only assumed that it has to eat preys from freshwater origin. In the present study, 127 specimens of E. maclovinus were analysed, 119 of which had stomach contents. The zoophagic tendency of the species is corroborated, but also animáis from low salinities and limnetic salinities were found to be consumed inthe freshwater environment. Consequently, E. maclovinus appears as an extraordinarily versatile species, in relation to its feeding capacities, with physiologic characteristics allowing a wide osmoregulatory spectrum at the digestive level, probably one of the most variable within the suborder Notothenioidei, which has strong Antarctic links. Article in Journal/Newspaper Antarc* Antarctic Directory of Open Access Journals: DOAJ Articles Antarctic |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English Spanish |
topic |
Feeding seasonality Eleginopsidae physiological versatility Chile Alimentación estacionalidad versatilidad fisiológica Oceanography GC1-1581 Zoology QL1-991 |
spellingShingle |
Feeding seasonality Eleginopsidae physiological versatility Chile Alimentación estacionalidad versatilidad fisiológica Oceanography GC1-1581 Zoology QL1-991 Germán Pequeño Héctor Pavés Carlos Bertrán Luis Vargas-Chacoff Seasonal limnetic feeding regime of the “robalo” Eleginops maclovinus (Valenciennes 1830), in the Valdivia river, Chile Regimen estacional de alimentación limnética en el “robalo” Eleginops maclovinus (Valenciennes 1830), en el río Valdivia, Chile |
topic_facet |
Feeding seasonality Eleginopsidae physiological versatility Chile Alimentación estacionalidad versatilidad fisiológica Oceanography GC1-1581 Zoology QL1-991 |
description |
The “robalo” Eleginops maclovinus (Valenciennes 1830) is a common fsh in the littoral, estuaries and rivers (under tidal effects zone) of southern South América, including the Falkland islands. The feeding habits of this species is known mainly in the two frst mentioned habitats, where it consumes mostly animals from marine and estuarine origin. However, little is known about its seasonal feeding habits in limnetic environments. It is only assumed that it has to eat preys from freshwater origin. In the present study, 127 specimens of E. maclovinus were analysed, 119 of which had stomach contents. The zoophagic tendency of the species is corroborated, but also animáis from low salinities and limnetic salinities were found to be consumed inthe freshwater environment. Consequently, E. maclovinus appears as an extraordinarily versatile species, in relation to its feeding capacities, with physiologic characteristics allowing a wide osmoregulatory spectrum at the digestive level, probably one of the most variable within the suborder Notothenioidei, which has strong Antarctic links. |
format |
Article in Journal/Newspaper |
author |
Germán Pequeño Héctor Pavés Carlos Bertrán Luis Vargas-Chacoff |
author_facet |
Germán Pequeño Héctor Pavés Carlos Bertrán Luis Vargas-Chacoff |
author_sort |
Germán Pequeño |
title |
Seasonal limnetic feeding regime of the “robalo” Eleginops maclovinus (Valenciennes 1830), in the Valdivia river, Chile Regimen estacional de alimentación limnética en el “robalo” Eleginops maclovinus (Valenciennes 1830), en el río Valdivia, Chile |
title_short |
Seasonal limnetic feeding regime of the “robalo” Eleginops maclovinus (Valenciennes 1830), in the Valdivia river, Chile Regimen estacional de alimentación limnética en el “robalo” Eleginops maclovinus (Valenciennes 1830), en el río Valdivia, Chile |
title_full |
Seasonal limnetic feeding regime of the “robalo” Eleginops maclovinus (Valenciennes 1830), in the Valdivia river, Chile Regimen estacional de alimentación limnética en el “robalo” Eleginops maclovinus (Valenciennes 1830), en el río Valdivia, Chile |
title_fullStr |
Seasonal limnetic feeding regime of the “robalo” Eleginops maclovinus (Valenciennes 1830), in the Valdivia river, Chile Regimen estacional de alimentación limnética en el “robalo” Eleginops maclovinus (Valenciennes 1830), en el río Valdivia, Chile |
title_full_unstemmed |
Seasonal limnetic feeding regime of the “robalo” Eleginops maclovinus (Valenciennes 1830), in the Valdivia river, Chile Regimen estacional de alimentación limnética en el “robalo” Eleginops maclovinus (Valenciennes 1830), en el río Valdivia, Chile |
title_sort |
seasonal limnetic feeding regime of the “robalo” eleginops maclovinus (valenciennes 1830), in the valdivia river, chile regimen estacional de alimentación limnética en el “robalo” eleginops maclovinus (valenciennes 1830), en el río valdivia, chile |
publisher |
Universidad de Concepción |
publishDate |
2010 |
url |
https://doaj.org/article/686c011990c540d0a8a24c7d73a4d3ec |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Gayana, Vol 74, Iss 1, Pp 47-56 (2010) |
op_relation |
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382010000100008 https://doaj.org/toc/0717-652X https://doaj.org/toc/0717-6538 0717-652X 0717-6538 https://doaj.org/article/686c011990c540d0a8a24c7d73a4d3ec |
_version_ |
1766051587869900800 |