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
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/75579
Acceder
id CONICETDig_292b791af5f39297dbd58124dfc76345
oai_identifier_str oai:ri.conicet.gov.ar:11336/75579
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling 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 Técnicas2025-10-22T11:54:02Zoai: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:34982025-10-22 11:54:02.326CONICET 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
_version_ 1846782237555556352
score 12.982451

Publicaciones similares