Cannibalism on planktonic eggs by a non-filter feeding fish, Micropogonias furnieri (Sciaenidae)
- Autores
- Acha, Eduardo Marcelo; Bremec, Claudia Silvia; Lasta, Carlos Angel
- Año de publicación
- 2002
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Cannibalism by fishes on planktonic eggs is typical of filter-feeding marine planktivores, i.e. fishes that have the ability for filtering large volumes of water and concentrate small food particles. We report an unusual case of cannibalism on planktonic eggs by adults of the non-filter feeding fish Micropogonias furnieri, which are opportunistic bottom-feeding carnivores that prey mainly on polychaetes, molluscs and crustaceans. Spawning of M. furnieri takes place in the innermost part of the Río de la Plata estuary, near the upstream edge of a salinity wedge. Strong haloclines retain planktonic eggs in a bottom salty layer, thin enough to generate spatial coexistence of the planktonic eggs and the bottom associated adults. Moreover, eggs remain sufficiently concentrated as to be sucked in by fish lacking filtering apparatus. It has been stated that cannibalism appears to be genetically based but controlled or induced by different environmental cues. Our case, however, shows that environmental influence on cannibalism is not restricted to a signal that triggers the cannibalistic behavior: oceanographic processes may also act generating specific scenarios that promote and perhaps regulate the occurrence of cannibalism.
Fil: Acha, Eduardo Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Subsede Instituto Nacional de Investigación y Desarrollo Pesquero; Argentina
Fil: Bremec, Claudia Silvia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Subsede Instituto Nacional de Investigación y Desarrollo Pesquero; Argentina
Fil: Lasta, Carlos Angel. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina - Materia
-
Croaker
Environmental Conditions
Estuaries
Sciaenidae
Southwest Atlantic - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/75579
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Cannibalism on planktonic eggs by a non-filter feeding fish, Micropogonias furnieri (Sciaenidae)Acha, Eduardo MarceloBremec, Claudia SilviaLasta, Carlos AngelCroakerEnvironmental ConditionsEstuariesSciaenidaeSouthwest Atlantichttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Cannibalism by fishes on planktonic eggs is typical of filter-feeding marine planktivores, i.e. fishes that have the ability for filtering large volumes of water and concentrate small food particles. We report an unusual case of cannibalism on planktonic eggs by adults of the non-filter feeding fish Micropogonias furnieri, which are opportunistic bottom-feeding carnivores that prey mainly on polychaetes, molluscs and crustaceans. Spawning of M. furnieri takes place in the innermost part of the Río de la Plata estuary, near the upstream edge of a salinity wedge. Strong haloclines retain planktonic eggs in a bottom salty layer, thin enough to generate spatial coexistence of the planktonic eggs and the bottom associated adults. Moreover, eggs remain sufficiently concentrated as to be sucked in by fish lacking filtering apparatus. It has been stated that cannibalism appears to be genetically based but controlled or induced by different environmental cues. Our case, however, shows that environmental influence on cannibalism is not restricted to a signal that triggers the cannibalistic behavior: oceanographic processes may also act generating specific scenarios that promote and perhaps regulate the occurrence of cannibalism.Fil: Acha, Eduardo Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Subsede Instituto Nacional de Investigación y Desarrollo Pesquero; ArgentinaFil: Bremec, Claudia Silvia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Subsede Instituto Nacional de Investigación y Desarrollo Pesquero; ArgentinaFil: Lasta, Carlos Angel. Instituto Nacional de Investigaciones y Desarrollo Pesquero; ArgentinaElsevier Science2002-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/75579Acha, Eduardo Marcelo; Bremec, Claudia Silvia; Lasta, Carlos Angel; Cannibalism on planktonic eggs by a non-filter feeding fish, Micropogonias furnieri (Sciaenidae); Elsevier Science; Fisheries Research; 56; 3; 12-2002; 321-3260165-7836CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0165783601003265info:eu-repo/semantics/altIdentifier/doi/10.1016/S0165-7836(01)00326-5info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:21:18Zoai:ri.conicet.gov.ar:11336/75579instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:21:18.274CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Cannibalism on planktonic eggs by a non-filter feeding fish, Micropogonias furnieri (Sciaenidae) |
title |
Cannibalism on planktonic eggs by a non-filter feeding fish, Micropogonias furnieri (Sciaenidae) |
spellingShingle |
Cannibalism on planktonic eggs by a non-filter feeding fish, Micropogonias furnieri (Sciaenidae) Acha, Eduardo Marcelo Croaker Environmental Conditions Estuaries Sciaenidae Southwest Atlantic |
title_short |
Cannibalism on planktonic eggs by a non-filter feeding fish, Micropogonias furnieri (Sciaenidae) |
title_full |
Cannibalism on planktonic eggs by a non-filter feeding fish, Micropogonias furnieri (Sciaenidae) |
title_fullStr |
Cannibalism on planktonic eggs by a non-filter feeding fish, Micropogonias furnieri (Sciaenidae) |
title_full_unstemmed |
Cannibalism on planktonic eggs by a non-filter feeding fish, Micropogonias furnieri (Sciaenidae) |
title_sort |
Cannibalism on planktonic eggs by a non-filter feeding fish, Micropogonias furnieri (Sciaenidae) |
dc.creator.none.fl_str_mv |
Acha, Eduardo Marcelo Bremec, Claudia Silvia Lasta, Carlos Angel |
author |
Acha, Eduardo Marcelo |
author_facet |
Acha, Eduardo Marcelo Bremec, Claudia Silvia Lasta, Carlos Angel |
author_role |
author |
author2 |
Bremec, Claudia Silvia Lasta, Carlos Angel |
author2_role |
author author |
dc.subject.none.fl_str_mv |
Croaker Environmental Conditions Estuaries Sciaenidae Southwest Atlantic |
topic |
Croaker Environmental Conditions Estuaries Sciaenidae Southwest Atlantic |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Cannibalism by fishes on planktonic eggs is typical of filter-feeding marine planktivores, i.e. fishes that have the ability for filtering large volumes of water and concentrate small food particles. We report an unusual case of cannibalism on planktonic eggs by adults of the non-filter feeding fish Micropogonias furnieri, which are opportunistic bottom-feeding carnivores that prey mainly on polychaetes, molluscs and crustaceans. Spawning of M. furnieri takes place in the innermost part of the Río de la Plata estuary, near the upstream edge of a salinity wedge. Strong haloclines retain planktonic eggs in a bottom salty layer, thin enough to generate spatial coexistence of the planktonic eggs and the bottom associated adults. Moreover, eggs remain sufficiently concentrated as to be sucked in by fish lacking filtering apparatus. It has been stated that cannibalism appears to be genetically based but controlled or induced by different environmental cues. Our case, however, shows that environmental influence on cannibalism is not restricted to a signal that triggers the cannibalistic behavior: oceanographic processes may also act generating specific scenarios that promote and perhaps regulate the occurrence of cannibalism. Fil: Acha, Eduardo Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Subsede Instituto Nacional de Investigación y Desarrollo Pesquero; Argentina Fil: Bremec, Claudia Silvia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Subsede Instituto Nacional de Investigación y Desarrollo Pesquero; Argentina Fil: Lasta, Carlos Angel. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina |
description |
Cannibalism by fishes on planktonic eggs is typical of filter-feeding marine planktivores, i.e. fishes that have the ability for filtering large volumes of water and concentrate small food particles. We report an unusual case of cannibalism on planktonic eggs by adults of the non-filter feeding fish Micropogonias furnieri, which are opportunistic bottom-feeding carnivores that prey mainly on polychaetes, molluscs and crustaceans. Spawning of M. furnieri takes place in the innermost part of the Río de la Plata estuary, near the upstream edge of a salinity wedge. Strong haloclines retain planktonic eggs in a bottom salty layer, thin enough to generate spatial coexistence of the planktonic eggs and the bottom associated adults. Moreover, eggs remain sufficiently concentrated as to be sucked in by fish lacking filtering apparatus. It has been stated that cannibalism appears to be genetically based but controlled or induced by different environmental cues. Our case, however, shows that environmental influence on cannibalism is not restricted to a signal that triggers the cannibalistic behavior: oceanographic processes may also act generating specific scenarios that promote and perhaps regulate the occurrence of cannibalism. |
publishDate |
2002 |
dc.date.none.fl_str_mv |
2002-12 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 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://hdl.handle.net/11336/75579 Acha, Eduardo Marcelo; Bremec, Claudia Silvia; Lasta, Carlos Angel; Cannibalism on planktonic eggs by a non-filter feeding fish, Micropogonias furnieri (Sciaenidae); Elsevier Science; Fisheries Research; 56; 3; 12-2002; 321-326 0165-7836 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/75579 |
identifier_str_mv |
Acha, Eduardo Marcelo; Bremec, Claudia Silvia; Lasta, Carlos Angel; Cannibalism on planktonic eggs by a non-filter feeding fish, Micropogonias furnieri (Sciaenidae); Elsevier Science; Fisheries Research; 56; 3; 12-2002; 321-326 0165-7836 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0165783601003265 info:eu-repo/semantics/altIdentifier/doi/10.1016/S0165-7836(01)00326-5 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier Science |
publisher.none.fl_str_mv |
Elsevier Science |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1844614200805031936 |
score |
13.070432 |