The importance of macroalgae and associated amphipods in the selective benthic feeding of sister rockcod species Notothenia rossii and N. coriiceps (Nototheniidae) in West Antarctica
Studies on feeding selectivity in Antarctic fish with comparison between diet organisms and those available in the wild are scarce. We explored this issue in Notothenia rossii (NOR) and N. coriiceps (NOC) at Potter Cove in summer 2016 to test: (1) their preference among different benthic groups, pri...
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ftconicet:oai:ri.conicet.gov.ar:11336/124634 2023-10-09T21:47:06+02:00 The importance of macroalgae and associated amphipods in the selective benthic feeding of sister rockcod species Notothenia rossii and N. coriiceps (Nototheniidae) in West Antarctica Barrera Oro, Esteban Moreira, María Eugenia Seefeldt, Meike Anna Valli Francione, Mariano Quartino, Maria Liliana application/pdf http://hdl.handle.net/11336/124634 eng eng Springer info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs00300-018-2424-0 info:eu-repo/semantics/altIdentifier/doi/10.1007/s00300-018-2424-0 http://hdl.handle.net/11336/124634 Barrera Oro, Esteban; Moreira, María Eugenia; Seefeldt, Meike Anna; Valli Francione, Mariano; Quartino, Maria Liliana; The importance of macroalgae and associated amphipods in the selective benthic feeding of sister rockcod species Notothenia rossii and N. coriiceps (Nototheniidae) in West Antarctica; Springer; Polar Biology; 42; 2; 2-2019; 317-334 0722-4060 CONICET Digital CONICET info:eu-repo/semantics/restrictedAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ ANTARCTIC FISH DIET MARINE ECOLOGY POTTER COVE SOUTH SHETLAND ISLANDS https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.1007/s00300-018-2424-0 2023-09-24T19:41:03Z Studies on feeding selectivity in Antarctic fish with comparison between diet organisms and those available in the wild are scarce. We explored this issue in Notothenia rossii (NOR) and N. coriiceps (NOC) at Potter Cove in summer 2016 to test: (1) their preference among different benthic groups, primarily species of algae and amphipods and (2) differences between these nototheniids given their distinct morphology but their known similar general ecology in the fjords. The methodology included a comparative analysis of benthic organisms identified in the stomachs and those collected on macroalgal beds (Ivlev Index). Benthic amphipods, mainly Gondogeneia antarctica and Cheirimedon femoratus, followed by macroalgae, mainly Palmaria decipiens and Desmarestia spp., were the most important and frequent dietary items (IRI%) for both nototheniids. However, NOC was more herbivorous and fed more intensively on a wider diversity of benthic organisms such as certain algal-associated groups like gastropods and bivalves, whereas NOR fed on a greater proportion of epibenthic amphipods and other epibenthic prey. Although in the last three decades the physiognomy of the inner cove has been changed due to the retreat of the Fourcade Glacier, at our sampling site in the outer cove the abundance and vertical distribution of macroalgae did not show substantial changes compared with those reported in the literature in 1994–1996. Temporal differences in the feeding selectivity of NOC on amphipod species, between contemporary and historical samples, may be explained by variations in the assemblage of the algal-associated epifauna. We suggest factors that may have produced these changes. Fil: Barrera Oro, Esteban. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; ... Article in Journal/Newspaper Antarc* Antarctic Antarctica Dirección Nacional del Antártico Instituto Antártico Argentino Notothenia rossii Polar Biology South Shetland Islands West Antarctica CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Antarctic West Antarctica South Shetland Islands Potter Cove Argentino Argentina Fourcade ENVELOPE(-62.490,-62.490,-64.612,-64.612) Fourcade Glacier ENVELOPE(-58.666,-58.666,-62.216,-62.216) Outer Cove ENVELOPE(-56.515,-56.515,50.233,50.233) Ivlev ENVELOPE(156.303,156.303,52.975,52.975) Polar Biology 42 2 317 334 |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
ANTARCTIC FISH DIET MARINE ECOLOGY POTTER COVE SOUTH SHETLAND ISLANDS https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
spellingShingle |
ANTARCTIC FISH DIET MARINE ECOLOGY POTTER COVE SOUTH SHETLAND ISLANDS https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 Barrera Oro, Esteban Moreira, María Eugenia Seefeldt, Meike Anna Valli Francione, Mariano Quartino, Maria Liliana The importance of macroalgae and associated amphipods in the selective benthic feeding of sister rockcod species Notothenia rossii and N. coriiceps (Nototheniidae) in West Antarctica |
topic_facet |
ANTARCTIC FISH DIET MARINE ECOLOGY POTTER COVE SOUTH SHETLAND ISLANDS https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
description |
Studies on feeding selectivity in Antarctic fish with comparison between diet organisms and those available in the wild are scarce. We explored this issue in Notothenia rossii (NOR) and N. coriiceps (NOC) at Potter Cove in summer 2016 to test: (1) their preference among different benthic groups, primarily species of algae and amphipods and (2) differences between these nototheniids given their distinct morphology but their known similar general ecology in the fjords. The methodology included a comparative analysis of benthic organisms identified in the stomachs and those collected on macroalgal beds (Ivlev Index). Benthic amphipods, mainly Gondogeneia antarctica and Cheirimedon femoratus, followed by macroalgae, mainly Palmaria decipiens and Desmarestia spp., were the most important and frequent dietary items (IRI%) for both nototheniids. However, NOC was more herbivorous and fed more intensively on a wider diversity of benthic organisms such as certain algal-associated groups like gastropods and bivalves, whereas NOR fed on a greater proportion of epibenthic amphipods and other epibenthic prey. Although in the last three decades the physiognomy of the inner cove has been changed due to the retreat of the Fourcade Glacier, at our sampling site in the outer cove the abundance and vertical distribution of macroalgae did not show substantial changes compared with those reported in the literature in 1994–1996. Temporal differences in the feeding selectivity of NOC on amphipod species, between contemporary and historical samples, may be explained by variations in the assemblage of the algal-associated epifauna. We suggest factors that may have produced these changes. Fil: Barrera Oro, Esteban. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; ... |
format |
Article in Journal/Newspaper |
author |
Barrera Oro, Esteban Moreira, María Eugenia Seefeldt, Meike Anna Valli Francione, Mariano Quartino, Maria Liliana |
author_facet |
Barrera Oro, Esteban Moreira, María Eugenia Seefeldt, Meike Anna Valli Francione, Mariano Quartino, Maria Liliana |
author_sort |
Barrera Oro, Esteban |
title |
The importance of macroalgae and associated amphipods in the selective benthic feeding of sister rockcod species Notothenia rossii and N. coriiceps (Nototheniidae) in West Antarctica |
title_short |
The importance of macroalgae and associated amphipods in the selective benthic feeding of sister rockcod species Notothenia rossii and N. coriiceps (Nototheniidae) in West Antarctica |
title_full |
The importance of macroalgae and associated amphipods in the selective benthic feeding of sister rockcod species Notothenia rossii and N. coriiceps (Nototheniidae) in West Antarctica |
title_fullStr |
The importance of macroalgae and associated amphipods in the selective benthic feeding of sister rockcod species Notothenia rossii and N. coriiceps (Nototheniidae) in West Antarctica |
title_full_unstemmed |
The importance of macroalgae and associated amphipods in the selective benthic feeding of sister rockcod species Notothenia rossii and N. coriiceps (Nototheniidae) in West Antarctica |
title_sort |
importance of macroalgae and associated amphipods in the selective benthic feeding of sister rockcod species notothenia rossii and n. coriiceps (nototheniidae) in west antarctica |
publisher |
Springer |
url |
http://hdl.handle.net/11336/124634 |
long_lat |
ENVELOPE(-62.490,-62.490,-64.612,-64.612) ENVELOPE(-58.666,-58.666,-62.216,-62.216) ENVELOPE(-56.515,-56.515,50.233,50.233) ENVELOPE(156.303,156.303,52.975,52.975) |
geographic |
Antarctic West Antarctica South Shetland Islands Potter Cove Argentino Argentina Fourcade Fourcade Glacier Outer Cove Ivlev |
geographic_facet |
Antarctic West Antarctica South Shetland Islands Potter Cove Argentino Argentina Fourcade Fourcade Glacier Outer Cove Ivlev |
genre |
Antarc* Antarctic Antarctica Dirección Nacional del Antártico Instituto Antártico Argentino Notothenia rossii Polar Biology South Shetland Islands West Antarctica |
genre_facet |
Antarc* Antarctic Antarctica Dirección Nacional del Antártico Instituto Antártico Argentino Notothenia rossii Polar Biology South Shetland Islands West Antarctica |
op_relation |
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs00300-018-2424-0 info:eu-repo/semantics/altIdentifier/doi/10.1007/s00300-018-2424-0 http://hdl.handle.net/11336/124634 Barrera Oro, Esteban; Moreira, María Eugenia; Seefeldt, Meike Anna; Valli Francione, Mariano; Quartino, Maria Liliana; The importance of macroalgae and associated amphipods in the selective benthic feeding of sister rockcod species Notothenia rossii and N. coriiceps (Nototheniidae) in West Antarctica; Springer; Polar Biology; 42; 2; 2-2019; 317-334 0722-4060 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/restrictedAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
op_doi |
https://doi.org/10.1007/s00300-018-2424-0 |
container_title |
Polar Biology |
container_volume |
42 |
container_issue |
2 |
container_start_page |
317 |
op_container_end_page |
334 |
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1779309867616436224 |