Alimentación del pejerrey (<i>Basilichthys bonariensis bonariensis</i>, Atherinidae) en laguna Chascomús (Buenos Aires, Argentina) : Relaciones ecológicas de complementación y efic...

Autores
Ringuelet, Raúl Adolfo; Iriart, Néstor Rubén; Escalante, Alicia H.
Año de publicación
1980
Idioma
español castellano
Tipo de recurso
artículo
Estado
versión publicada
Descripción
This paper refers about the alimentary relations of the argentine silverside. We examined its digestive tract, and described tbe trophic spectrum of very juvenile specimens and adults. This fish is normally planktophagous, but it retains, by means of a selective filtration, mostly microcrustaceans: firstly Calanoids, secondly Cyclopids and lastly Cladocerans. The proportion of plankters in Chascomús pond is enterely different from that retained in the digestive tract of the “pejerrey”. We analysed this phenomenon and calculated the retention and loss coefficients. The wet weight of the microcrustaceans retained in 5.485 liters of water is equivalent to 1 gram fish; in other words, the relationship is 1 gram fish = 0,87 g of effective zooplankton.
Contribución científica Nº 133 del Instituto de Limnología (ILPLA).
Facultad de Ciencias Naturales y Museo
Materia
Ciencias Naturales
Buenos Aires (Argentina)
Peces
Alimentación Animal
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/67243
Acceder
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network_name_str SEDICI (UNLP)
spelling Alimentación del pejerrey (<i>Basilichthys bonariensis bonariensis</i>, Atherinidae) en laguna Chascomús (Buenos Aires, Argentina) : Relaciones ecológicas de complementación y eficiencia trófica del planctonFeeding of the "pejerrey” (<i>Basilichthys bonariensis bonariensis</i>, Atherinidae) in Chascomús pond (Buenos Aires, Argentina). Complementary ecological relations and trophic efficiency of planktonRinguelet, Raúl AdolfoIriart, Néstor RubénEscalante, Alicia H.Ciencias NaturalesBuenos Aires (Argentina)PecesAlimentación AnimalThis paper refers about the alimentary relations of the argentine silverside. We examined its digestive tract, and described tbe trophic spectrum of very juvenile specimens and adults. This fish is normally planktophagous, but it retains, by means of a selective filtration, mostly microcrustaceans: firstly Calanoids, secondly Cyclopids and lastly Cladocerans. The proportion of plankters in Chascomús pond is enterely different from that retained in the digestive tract of the “pejerrey”. We analysed this phenomenon and calculated the retention and loss coefficients. The wet weight of the microcrustaceans retained in 5.485 liters of water is equivalent to 1 gram fish; in other words, the relationship is 1 gram fish = 0,87 g of effective zooplankton.Contribución científica Nº 133 del Instituto de Limnología (ILPLA).Facultad de Ciencias Naturales y Museo1980info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf447-460http://sedici.unlp.edu.ar/handle/10915/67243spainfo:eu-repo/semantics/altIdentifier/issn/0325-7592info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc/4.0/Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-22T16:51:09Zoai:sedici.unlp.edu.ar:10915/67243Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-22 16:51:09.969SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Alimentación del pejerrey (<i>Basilichthys bonariensis bonariensis</i>, Atherinidae) en laguna Chascomús (Buenos Aires, Argentina) : Relaciones ecológicas de complementación y eficiencia trófica del plancton
Feeding of the "pejerrey” (<i>Basilichthys bonariensis bonariensis</i>, Atherinidae) in Chascomús pond (Buenos Aires, Argentina). Complementary ecological relations and trophic efficiency of plankton
title Alimentación del pejerrey (<i>Basilichthys bonariensis bonariensis</i>, Atherinidae) en laguna Chascomús (Buenos Aires, Argentina) : Relaciones ecológicas de complementación y eficiencia trófica del plancton
spellingShingle Alimentación del pejerrey (<i>Basilichthys bonariensis bonariensis</i>, Atherinidae) en laguna Chascomús (Buenos Aires, Argentina) : Relaciones ecológicas de complementación y eficiencia trófica del plancton
Ringuelet, Raúl Adolfo
Ciencias Naturales
Buenos Aires (Argentina)
Peces
Alimentación Animal
title_short Alimentación del pejerrey (<i>Basilichthys bonariensis bonariensis</i>, Atherinidae) en laguna Chascomús (Buenos Aires, Argentina) : Relaciones ecológicas de complementación y eficiencia trófica del plancton
title_full Alimentación del pejerrey (<i>Basilichthys bonariensis bonariensis</i>, Atherinidae) en laguna Chascomús (Buenos Aires, Argentina) : Relaciones ecológicas de complementación y eficiencia trófica del plancton
title_fullStr Alimentación del pejerrey (<i>Basilichthys bonariensis bonariensis</i>, Atherinidae) en laguna Chascomús (Buenos Aires, Argentina) : Relaciones ecológicas de complementación y eficiencia trófica del plancton
title_full_unstemmed Alimentación del pejerrey (<i>Basilichthys bonariensis bonariensis</i>, Atherinidae) en laguna Chascomús (Buenos Aires, Argentina) : Relaciones ecológicas de complementación y eficiencia trófica del plancton
title_sort Alimentación del pejerrey (<i>Basilichthys bonariensis bonariensis</i>, Atherinidae) en laguna Chascomús (Buenos Aires, Argentina) : Relaciones ecológicas de complementación y eficiencia trófica del plancton
dc.creator.none.fl_str_mv Ringuelet, Raúl Adolfo
Iriart, Néstor Rubén
Escalante, Alicia H.
author Ringuelet, Raúl Adolfo
author_facet Ringuelet, Raúl Adolfo
Iriart, Néstor Rubén
Escalante, Alicia H.
author_role author
author2 Iriart, Néstor Rubén
Escalante, Alicia H.
author2_role author
author
dc.subject.none.fl_str_mv Ciencias Naturales
Buenos Aires (Argentina)
Peces
Alimentación Animal
topic Ciencias Naturales
Buenos Aires (Argentina)
Peces
Alimentación Animal
dc.description.none.fl_txt_mv This paper refers about the alimentary relations of the argentine silverside. We examined its digestive tract, and described tbe trophic spectrum of very juvenile specimens and adults. This fish is normally planktophagous, but it retains, by means of a selective filtration, mostly microcrustaceans: firstly Calanoids, secondly Cyclopids and lastly Cladocerans. The proportion of plankters in Chascomús pond is enterely different from that retained in the digestive tract of the “pejerrey”. We analysed this phenomenon and calculated the retention and loss coefficients. The wet weight of the microcrustaceans retained in 5.485 liters of water is equivalent to 1 gram fish; in other words, the relationship is 1 gram fish = 0,87 g of effective zooplankton.
Contribución científica Nº 133 del Instituto de Limnología (ILPLA).
Facultad de Ciencias Naturales y Museo
description This paper refers about the alimentary relations of the argentine silverside. We examined its digestive tract, and described tbe trophic spectrum of very juvenile specimens and adults. This fish is normally planktophagous, but it retains, by means of a selective filtration, mostly microcrustaceans: firstly Calanoids, secondly Cyclopids and lastly Cladocerans. The proportion of plankters in Chascomús pond is enterely different from that retained in the digestive tract of the “pejerrey”. We analysed this phenomenon and calculated the retention and loss coefficients. The wet weight of the microcrustaceans retained in 5.485 liters of water is equivalent to 1 gram fish; in other words, the relationship is 1 gram fish = 0,87 g of effective zooplankton.
publishDate 1980
dc.date.none.fl_str_mv 1980
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/67243
url http://sedici.unlp.edu.ar/handle/10915/67243
dc.language.none.fl_str_mv spa
language spa
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0325-7592
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc/4.0/
Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc/4.0/
Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
dc.format.none.fl_str_mv application/pdf
447-460
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 12.982451

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