Feeding and egg production of Oithona spp. in tropical waters of North Queensland, Australia

Feeding and egg production of Oithona spp. in tropical waters of North Queensland, Australia

13 pages, 3 figures, 4 tables

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Bibliographic Details
Main Authors: Zamora, Sara, Mckinnon, A. David, Saiz, Enric
Format: artículo biblioteca
Language:English
Published: Oxford University Press 2014-07
Subjects:Oithona, Feeding, Egg production, Tropical waters, Australia, Small copepod, Cyclopoid,
Online Access:http://hdl.handle.net/10261/101580
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spelling dig-icm-es-10261-1015802020-11-26T18:30:47Z Feeding and egg production of Oithona spp. in tropical waters of North Queensland, Australia Zamora, Sara Mckinnon, A. David Saiz, Enric Oithona Feeding Egg production Tropical waters Australia Small copepod Cyclopoid 13 pages, 3 figures, 4 tables Despite the acknowledged importance of small copepods of the genus Oithona in marine pelagic ecosystems, there is little information about their ecological role, potential food resources and egg production rates (EPR) in tropical environments. In the present study, feeding and EPR of adult females of two species of Oithona were determined in two different tropical marine food webs in North Queensland, Australia, during the 2011 austral autumn. Oithona attenuata was studied in the waters of the Great Barrier Reef lagoon, and Oithona dissimilis was studied in a mangrove area. Oithona spp. ingested dinoflagellates and ciliates preferentially to other prey items of the nano- and microplankton assemblage. Oithona spp. clearance rates on dinoflagellates and ciliates ranged from 3.7 to 10.4 mL female−1 day−1, and from 4.3 to 18.1 mL female−1 day−1, respectively. The daily body carbon ingested per female was <1% when feeding on dinoflagellates, and varied from 1 to 10% when feeding on ciliates. Our results suggest that Oithona spp. feed on small flagellates (5–20 µm), although the contribution of carbon to the diet was low (2.5–3.2% body carbon). Egg production and weight-specific EPR ranged from 0.22 to 3.34 eggs female−1 day−1, and 0.2–4.5% day−1 respectively. The ingestion rates measured in all the feeding experiments were too low to sustain metabolic and egg production costs, indicating that other food resources, not considered in this study, might contribute significantly to the diet of Oithona spp. in tropical environments This work was funded by the Spanish Ministry of Economy and Competitiveness through a Ph.D. fellowship to S.Z.-T. (BES-2008-004231), and the project CTM2007-60052 to E.S. Peer reviewed 2014-09-02T12:28:07Z 2014-09-02T12:28:07Z 2014-07 artículo http://purl.org/coar/resource_type/c_6501 Journal of Plankton Research 36(4): 1047-1059 (2014) 0142-7873 http://hdl.handle.net/10261/101580 10.1093/plankt/fbu039 1464-3774 en https://doi.org/10.1093/plankt/fbu039 Sí none Oxford University Press
institution ICM ES
collection DSpace
country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-icm-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del ICM España
language English
topic Oithona
Feeding
Egg production
Tropical waters
Australia
Small copepod
Cyclopoid
Oithona
Feeding
Egg production
Tropical waters
Australia
Small copepod
Cyclopoid
spellingShingle Oithona
Feeding
Egg production
Tropical waters
Australia
Small copepod
Cyclopoid
Oithona
Feeding
Egg production
Tropical waters
Australia
Small copepod
Cyclopoid
Zamora, Sara
Mckinnon, A. David
Saiz, Enric
Feeding and egg production of Oithona spp. in tropical waters of North Queensland, Australia
description 13 pages, 3 figures, 4 tables
format artículo
topic_facet Oithona
Feeding
Egg production
Tropical waters
Australia
Small copepod
Cyclopoid
author Zamora, Sara
Mckinnon, A. David
Saiz, Enric
author_facet Zamora, Sara
Mckinnon, A. David
Saiz, Enric
author_sort Zamora, Sara
title Feeding and egg production of Oithona spp. in tropical waters of North Queensland, Australia
title_short Feeding and egg production of Oithona spp. in tropical waters of North Queensland, Australia
title_full Feeding and egg production of Oithona spp. in tropical waters of North Queensland, Australia
title_fullStr Feeding and egg production of Oithona spp. in tropical waters of North Queensland, Australia
title_full_unstemmed Feeding and egg production of Oithona spp. in tropical waters of North Queensland, Australia
title_sort feeding and egg production of oithona spp. in tropical waters of north queensland, australia
publisher Oxford University Press
publishDate 2014-07
url http://hdl.handle.net/10261/101580
work_keys_str_mv AT zamorasara feedingandeggproductionofoithonasppintropicalwatersofnorthqueenslandaustralia
AT mckinnonadavid feedingandeggproductionofoithonasppintropicalwatersofnorthqueenslandaustralia
AT saizenric feedingandeggproductionofoithonasppintropicalwatersofnorthqueenslandaustralia
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