Productividad y flujo de carbón en los ecosistemas marinos de la Reserva Marina de Galápagos basado en abundancia de cetáceos e índices tróficos
The role of cetaceans in marine ecosystems and food webs is scarcely known in the southeastern Pacific. Estimates of secondary and tertiary (carbon) production and daily food intake were deduced for five species of representative cetaceans for different marine habitats of the Galapagos by using asso...
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Format: | Article in Journal/Newspaper |
Language: | English |
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Universidad de Valparaiso: Facultad de Ciencias del Mar
2009
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Online Access: | https://dialnet.unirioja.es/servlet/oaiart?codigo=2969977 |
id |
ftdialnet:oai:dialnet.unirioja.es:ART0000288487 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Dialnet - Portada de revistas (Universidad de La Rioja) |
op_collection_id |
ftdialnet |
language |
English |
topic |
Baleen whales sperm whale bottlenose dolphin killer whale primary and tertiary production trophic level Ballenas de barbas (rorcuales) cachalote delfín nariz de botella orca producción primaria y terciaria nivel trófico |
spellingShingle |
Baleen whales sperm whale bottlenose dolphin killer whale primary and tertiary production trophic level Ballenas de barbas (rorcuales) cachalote delfín nariz de botella orca producción primaria y terciaria nivel trófico Alava, Juan José Productividad y flujo de carbón en los ecosistemas marinos de la Reserva Marina de Galápagos basado en abundancia de cetáceos e índices tróficos |
topic_facet |
Baleen whales sperm whale bottlenose dolphin killer whale primary and tertiary production trophic level Ballenas de barbas (rorcuales) cachalote delfín nariz de botella orca producción primaria y terciaria nivel trófico |
description |
The role of cetaceans in marine ecosystems and food webs is scarcely known in the southeastern Pacific. Estimates of secondary and tertiary (carbon) production and daily food intake were deduced for five species of representative cetaceans for different marine habitats of the Galapagos by using associated calculations of annual primary production and carbon flux, as well as estimations of relative abundance, biomass, absolute density and trophic levels (TL) reported elsewhere. Under these premises, sperm (Physeter macrocephalus) and carnivore-generalist killer whales (Orcinus orca) for open ocean (i.e. no upwelling regions) had the lowest values of tertiary production at the top predator level (0.01-1.01 gC m-2 yr-1), while Bryde�s (Balaenoptera edeni) and blue (B. musculus) whales from upwelling zone located at southwest Galapagos Island yielded the highest cetacean production (13.7 and 35.4 gC m-2 yr-1, respectively). Significant positive correlations at a 15% of efficiency transfer were found between the estimated annual primary production and tertiary production of baleen whales, and between annual primary production and tertiary production of toothed cetaceans. When both groups of cetaceans were combined a no significant correlation was observed between cetacean production and annual primary productivity. This outcome was influenced by their different trophic positions in the food chain and different scenarios values of annual primary productivity of the marine ecosystems selected. More research is needed to determine abundance, prey selection, feeding rates, and fecal matter sinking rates from marine mammals in Galapagos waters, as well as their function in the vertical carbon flux. El rol de los cetáceos en la productividad y flujo de energía en los ecosistemas marinos es escasamente conocido en el Pacifico sureste. Este estudio propone estimar la producción secundaria y terciaria de cinco especies de cetáceos representativos de diferentes ecosistemas marinos de las Galápagos usando cálculos asociados ... |
format |
Article in Journal/Newspaper |
author |
Alava, Juan José |
author_facet |
Alava, Juan José |
author_sort |
Alava, Juan José |
title |
Productividad y flujo de carbón en los ecosistemas marinos de la Reserva Marina de Galápagos basado en abundancia de cetáceos e índices tróficos |
title_short |
Productividad y flujo de carbón en los ecosistemas marinos de la Reserva Marina de Galápagos basado en abundancia de cetáceos e índices tróficos |
title_full |
Productividad y flujo de carbón en los ecosistemas marinos de la Reserva Marina de Galápagos basado en abundancia de cetáceos e índices tróficos |
title_fullStr |
Productividad y flujo de carbón en los ecosistemas marinos de la Reserva Marina de Galápagos basado en abundancia de cetáceos e índices tróficos |
title_full_unstemmed |
Productividad y flujo de carbón en los ecosistemas marinos de la Reserva Marina de Galápagos basado en abundancia de cetáceos e índices tróficos |
title_sort |
productividad y flujo de carbón en los ecosistemas marinos de la reserva marina de galápagos basado en abundancia de cetáceos e índices tróficos |
publisher |
Universidad de Valparaiso: Facultad de Ciencias del Mar |
publishDate |
2009 |
url |
https://dialnet.unirioja.es/servlet/oaiart?codigo=2969977 |
long_lat |
ENVELOPE(-45.800,-45.800,-60.817,-60.817) ENVELOPE(-64.167,-64.167,-65.183,-65.183) ENVELOPE(-60.783,-60.783,-62.450,-62.450) ENVELOPE(-63.033,-63.033,-64.867,-64.867) |
geographic |
Galapagos Pacific Cachalote Ballenas Delfín Bryde |
geographic_facet |
Galapagos Pacific Cachalote Ballenas Delfín Bryde |
genre |
baleen whales cachalote Killer Whale Orca Orcinus orca Physeter macrocephalus Sperm whale Killer whale |
genre_facet |
baleen whales cachalote Killer Whale Orca Orcinus orca Physeter macrocephalus Sperm whale Killer whale |
op_source |
Revista de biología marina y oceanografía, ISSN 0717-3326, Vol. 44, Nº. 1, 2009, pags. 109-122 |
op_relation |
https://dialnet.unirioja.es/servlet/oaiart?codigo=2969977 (Revista) ISSN 0717-3326 |
op_rights |
LICENCIA DE USO: Los documentos a texto completo incluidos en Dialnet son de acceso libre y propiedad de sus autores y/o editores. Por tanto, cualquier acto de reproducción, distribución, comunicación pública y/o transformación total o parcial requiere el consentimiento expreso y escrito de aquéllos. Cualquier enlace al texto completo de estos documentos deberá hacerse a través de la URL oficial de éstos en Dialnet. Más información: https://dialnet.unirioja.es/info/derechosOAI | INTELLECTUAL PROPERTY RIGHTS STATEMENT: Full text documents hosted by Dialnet are protected by copyright and/or related rights. This digital object is accessible without charge, but its use is subject to the licensing conditions set by its authors or editors. Unless expressly stated otherwise in the licensing conditions, you are free to linking, browsing, printing and making a copy for your own personal purposes. All other acts of reproduction and communication to the public are subject to the licensing conditions expressed by editors and authors and require consent from them. Any link to this document should be made using its official URL in Dialnet. More info: https://dialnet.unirioja.es/info/derechosOAI |
_version_ |
1766367600199073792 |
spelling |
ftdialnet:oai:dialnet.unirioja.es:ART0000288487 2023-05-15T15:37:08+02:00 Productividad y flujo de carbón en los ecosistemas marinos de la Reserva Marina de Galápagos basado en abundancia de cetáceos e índices tróficos Alava, Juan José 2009 application/pdf https://dialnet.unirioja.es/servlet/oaiart?codigo=2969977 eng eng Universidad de Valparaiso: Facultad de Ciencias del Mar https://dialnet.unirioja.es/servlet/oaiart?codigo=2969977 (Revista) ISSN 0717-3326 LICENCIA DE USO: Los documentos a texto completo incluidos en Dialnet son de acceso libre y propiedad de sus autores y/o editores. Por tanto, cualquier acto de reproducción, distribución, comunicación pública y/o transformación total o parcial requiere el consentimiento expreso y escrito de aquéllos. Cualquier enlace al texto completo de estos documentos deberá hacerse a través de la URL oficial de éstos en Dialnet. Más información: https://dialnet.unirioja.es/info/derechosOAI | INTELLECTUAL PROPERTY RIGHTS STATEMENT: Full text documents hosted by Dialnet are protected by copyright and/or related rights. This digital object is accessible without charge, but its use is subject to the licensing conditions set by its authors or editors. Unless expressly stated otherwise in the licensing conditions, you are free to linking, browsing, printing and making a copy for your own personal purposes. All other acts of reproduction and communication to the public are subject to the licensing conditions expressed by editors and authors and require consent from them. Any link to this document should be made using its official URL in Dialnet. More info: https://dialnet.unirioja.es/info/derechosOAI Revista de biología marina y oceanografía, ISSN 0717-3326, Vol. 44, Nº. 1, 2009, pags. 109-122 Baleen whales sperm whale bottlenose dolphin killer whale primary and tertiary production trophic level Ballenas de barbas (rorcuales) cachalote delfín nariz de botella orca producción primaria y terciaria nivel trófico text (article) 2009 ftdialnet 2019-08-29T08:52:23Z The role of cetaceans in marine ecosystems and food webs is scarcely known in the southeastern Pacific. Estimates of secondary and tertiary (carbon) production and daily food intake were deduced for five species of representative cetaceans for different marine habitats of the Galapagos by using associated calculations of annual primary production and carbon flux, as well as estimations of relative abundance, biomass, absolute density and trophic levels (TL) reported elsewhere. Under these premises, sperm (Physeter macrocephalus) and carnivore-generalist killer whales (Orcinus orca) for open ocean (i.e. no upwelling regions) had the lowest values of tertiary production at the top predator level (0.01-1.01 gC m-2 yr-1), while Bryde�s (Balaenoptera edeni) and blue (B. musculus) whales from upwelling zone located at southwest Galapagos Island yielded the highest cetacean production (13.7 and 35.4 gC m-2 yr-1, respectively). Significant positive correlations at a 15% of efficiency transfer were found between the estimated annual primary production and tertiary production of baleen whales, and between annual primary production and tertiary production of toothed cetaceans. When both groups of cetaceans were combined a no significant correlation was observed between cetacean production and annual primary productivity. This outcome was influenced by their different trophic positions in the food chain and different scenarios values of annual primary productivity of the marine ecosystems selected. More research is needed to determine abundance, prey selection, feeding rates, and fecal matter sinking rates from marine mammals in Galapagos waters, as well as their function in the vertical carbon flux. El rol de los cetáceos en la productividad y flujo de energía en los ecosistemas marinos es escasamente conocido en el Pacifico sureste. Este estudio propone estimar la producción secundaria y terciaria de cinco especies de cetáceos representativos de diferentes ecosistemas marinos de las Galápagos usando cálculos asociados ... Article in Journal/Newspaper baleen whales cachalote Killer Whale Orca Orcinus orca Physeter macrocephalus Sperm whale Killer whale Dialnet - Portada de revistas (Universidad de La Rioja) Galapagos Pacific Cachalote ENVELOPE(-45.800,-45.800,-60.817,-60.817) Ballenas ENVELOPE(-64.167,-64.167,-65.183,-65.183) Delfín ENVELOPE(-60.783,-60.783,-62.450,-62.450) Bryde ENVELOPE(-63.033,-63.033,-64.867,-64.867) |