Seasonal variation of gelatinous plankton consumption by fish in the South-western Atlantic Ocean: a question of strategy

Autores
Diaz Briz, Luciana Mabel; Sanchez, Mariela Felisa; Marí, Noemí; Genzano, Gabriel Nestor
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Gelatinous plankton is an important food resource for several species of fishes in theSouthwestern Atlantic Ocean. Some fish depend heavily on these organisms and arespecialized to feed on ctenophores, salps and medusae, while others only consumegelatinous plankton occasionally. We hypothesize that consumption of gelatinous planktonby fishes represents an alternative food resource when primary prey are not available duringcold periods in the study area. To determine seasonal variations of gelatinous planktonconsumption by fishes, data samples were grouped into cold and warm periods. A total of64,567 stomachs belonging to 106 species of fish were analysed, of which 32,943 (51%)contained food items. Of those containing food items, 2719 (8.2%), from 38 fish species,contained gelatinous items. Fourteen species ingested gelatinous in warm period, nine incold period, and 15 in both periods. The proportion of stomachs with gelatinous wassignificantly greater during the cold period. Ctenophores were the most predominant prey inboth periods, followed by salps and medusae. Consumption of ctenophores, salps andmedusae was unevenly distributed within the area during the different periods. Classificationmethods (group average sorting utilizing Bray?Curtis similarity measures based on log (X + 1)identified eight areas of consumption. SIMPER (similarity percentages) analyses revealed thatnine fish species contributed most to gelatinous plankton consumption. The seasonal andspatial variation of gelatinous consumption by fish would be related to the availability offood in each period. Strategies of gelatinous consumption, including survival, feedingopportunities and prey specialization, are discussed.
Fil: Diaz Briz, Luciana Mabel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Sanchez, Mariela Felisa. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Marí, Noemí. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales; Argentina. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina
Fil: Genzano, Gabriel Nestor. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Materia
SEASONALITY
GELATINOUS PLANKTON
FISH PREDATION
STRATEGY OF CONSUMPTION
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:11336/88220
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/88220
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Seasonal variation of gelatinous plankton consumption by fish in the South-western Atlantic Ocean: a question of strategyDiaz Briz, Luciana MabelSanchez, Mariela FelisaMarí, NoemíGenzano, Gabriel NestorSEASONALITYGELATINOUS PLANKTONFISH PREDATIONSTRATEGY OF CONSUMPTIONhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Gelatinous plankton is an important food resource for several species of fishes in theSouthwestern Atlantic Ocean. Some fish depend heavily on these organisms and arespecialized to feed on ctenophores, salps and medusae, while others only consumegelatinous plankton occasionally. We hypothesize that consumption of gelatinous planktonby fishes represents an alternative food resource when primary prey are not available duringcold periods in the study area. To determine seasonal variations of gelatinous planktonconsumption by fishes, data samples were grouped into cold and warm periods. A total of64,567 stomachs belonging to 106 species of fish were analysed, of which 32,943 (51%)contained food items. Of those containing food items, 2719 (8.2%), from 38 fish species,contained gelatinous items. Fourteen species ingested gelatinous in warm period, nine incold period, and 15 in both periods. The proportion of stomachs with gelatinous wassignificantly greater during the cold period. Ctenophores were the most predominant prey inboth periods, followed by salps and medusae. Consumption of ctenophores, salps andmedusae was unevenly distributed within the area during the different periods. Classificationmethods (group average sorting utilizing Bray?Curtis similarity measures based on log (X + 1)identified eight areas of consumption. SIMPER (similarity percentages) analyses revealed thatnine fish species contributed most to gelatinous plankton consumption. The seasonal andspatial variation of gelatinous consumption by fish would be related to the availability offood in each period. Strategies of gelatinous consumption, including survival, feedingopportunities and prey specialization, are discussed.Fil: Diaz Briz, Luciana Mabel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaFil: Sanchez, Mariela Felisa. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales; ArgentinaFil: Marí, Noemí. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales; Argentina. Instituto Nacional de Investigaciones y Desarrollo Pesquero; ArgentinaFil: Genzano, Gabriel Nestor. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaTaylor & Francis As2018-08-24info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/88220Diaz Briz, Luciana Mabel; Sanchez, Mariela Felisa; Marí, Noemí; Genzano, Gabriel Nestor; Seasonal variation of gelatinous plankton consumption by fish in the South-western Atlantic Ocean: a question of strategy; Taylor & Francis As; Marine Biology Research; 14; 7; 24-8-2018; 739-7511745-10001745-1019CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/full/10.1080/17451000.2018.1508847info:eu-repo/semantics/altIdentifier/url/https://doi.org/10.1080/17451000.2018.1508847info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:53:03Zoai:ri.conicet.gov.ar:11336/88220instacron: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:34982025-09-03 09:53:04.182CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Seasonal variation of gelatinous plankton consumption by fish in the South-western Atlantic Ocean: a question of strategy
title Seasonal variation of gelatinous plankton consumption by fish in the South-western Atlantic Ocean: a question of strategy
spellingShingle Seasonal variation of gelatinous plankton consumption by fish in the South-western Atlantic Ocean: a question of strategy
Diaz Briz, Luciana Mabel
SEASONALITY
GELATINOUS PLANKTON
FISH PREDATION
STRATEGY OF CONSUMPTION
title_short Seasonal variation of gelatinous plankton consumption by fish in the South-western Atlantic Ocean: a question of strategy
title_full Seasonal variation of gelatinous plankton consumption by fish in the South-western Atlantic Ocean: a question of strategy
title_fullStr Seasonal variation of gelatinous plankton consumption by fish in the South-western Atlantic Ocean: a question of strategy
title_full_unstemmed Seasonal variation of gelatinous plankton consumption by fish in the South-western Atlantic Ocean: a question of strategy
title_sort Seasonal variation of gelatinous plankton consumption by fish in the South-western Atlantic Ocean: a question of strategy
dc.creator.none.fl_str_mv Diaz Briz, Luciana Mabel
Sanchez, Mariela Felisa
Marí, Noemí
Genzano, Gabriel Nestor
author Diaz Briz, Luciana Mabel
author_facet Diaz Briz, Luciana Mabel
Sanchez, Mariela Felisa
Marí, Noemí
Genzano, Gabriel Nestor
author_role author
author2 Sanchez, Mariela Felisa
Marí, Noemí
Genzano, Gabriel Nestor
author2_role author
author
author
dc.subject.none.fl_str_mv SEASONALITY
GELATINOUS PLANKTON
FISH PREDATION
STRATEGY OF CONSUMPTION
topic SEASONALITY
GELATINOUS PLANKTON
FISH PREDATION
STRATEGY OF CONSUMPTION
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Gelatinous plankton is an important food resource for several species of fishes in theSouthwestern Atlantic Ocean. Some fish depend heavily on these organisms and arespecialized to feed on ctenophores, salps and medusae, while others only consumegelatinous plankton occasionally. We hypothesize that consumption of gelatinous planktonby fishes represents an alternative food resource when primary prey are not available duringcold periods in the study area. To determine seasonal variations of gelatinous planktonconsumption by fishes, data samples were grouped into cold and warm periods. A total of64,567 stomachs belonging to 106 species of fish were analysed, of which 32,943 (51%)contained food items. Of those containing food items, 2719 (8.2%), from 38 fish species,contained gelatinous items. Fourteen species ingested gelatinous in warm period, nine incold period, and 15 in both periods. The proportion of stomachs with gelatinous wassignificantly greater during the cold period. Ctenophores were the most predominant prey inboth periods, followed by salps and medusae. Consumption of ctenophores, salps andmedusae was unevenly distributed within the area during the different periods. Classificationmethods (group average sorting utilizing Bray?Curtis similarity measures based on log (X + 1)identified eight areas of consumption. SIMPER (similarity percentages) analyses revealed thatnine fish species contributed most to gelatinous plankton consumption. The seasonal andspatial variation of gelatinous consumption by fish would be related to the availability offood in each period. Strategies of gelatinous consumption, including survival, feedingopportunities and prey specialization, are discussed.
Fil: Diaz Briz, Luciana Mabel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Sanchez, Mariela Felisa. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Marí, Noemí. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales; Argentina. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina
Fil: Genzano, Gabriel Nestor. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
description Gelatinous plankton is an important food resource for several species of fishes in theSouthwestern Atlantic Ocean. Some fish depend heavily on these organisms and arespecialized to feed on ctenophores, salps and medusae, while others only consumegelatinous plankton occasionally. We hypothesize that consumption of gelatinous planktonby fishes represents an alternative food resource when primary prey are not available duringcold periods in the study area. To determine seasonal variations of gelatinous planktonconsumption by fishes, data samples were grouped into cold and warm periods. A total of64,567 stomachs belonging to 106 species of fish were analysed, of which 32,943 (51%)contained food items. Of those containing food items, 2719 (8.2%), from 38 fish species,contained gelatinous items. Fourteen species ingested gelatinous in warm period, nine incold period, and 15 in both periods. The proportion of stomachs with gelatinous wassignificantly greater during the cold period. Ctenophores were the most predominant prey inboth periods, followed by salps and medusae. Consumption of ctenophores, salps andmedusae was unevenly distributed within the area during the different periods. Classificationmethods (group average sorting utilizing Bray?Curtis similarity measures based on log (X + 1)identified eight areas of consumption. SIMPER (similarity percentages) analyses revealed thatnine fish species contributed most to gelatinous plankton consumption. The seasonal andspatial variation of gelatinous consumption by fish would be related to the availability offood in each period. Strategies of gelatinous consumption, including survival, feedingopportunities and prey specialization, are discussed.
publishDate 2018
dc.date.none.fl_str_mv 2018-08-24
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/11336/88220
Diaz Briz, Luciana Mabel; Sanchez, Mariela Felisa; Marí, Noemí; Genzano, Gabriel Nestor; Seasonal variation of gelatinous plankton consumption by fish in the South-western Atlantic Ocean: a question of strategy; Taylor & Francis As; Marine Biology Research; 14; 7; 24-8-2018; 739-751
1745-1000
1745-1019
CONICET Digital
CONICET
url http://hdl.handle.net/11336/88220
identifier_str_mv Diaz Briz, Luciana Mabel; Sanchez, Mariela Felisa; Marí, Noemí; Genzano, Gabriel Nestor; Seasonal variation of gelatinous plankton consumption by fish in the South-western Atlantic Ocean: a question of strategy; Taylor & Francis As; Marine Biology Research; 14; 7; 24-8-2018; 739-751
1745-1000
1745-1019
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.tandfonline.com/doi/full/10.1080/17451000.2018.1508847
info:eu-repo/semantics/altIdentifier/url/https://doi.org/10.1080/17451000.2018.1508847
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
application/pdf
dc.publisher.none.fl_str_mv Taylor & Francis As
publisher.none.fl_str_mv Taylor & Francis As
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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score 13.13397

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