The University of Southampton
University of Southampton Institutional Repository

The seasonal abundance and production of Oithona nana (Copepoda: Cyclopoida) in Southampton Water

Williams, J.A. and Muxagata, E. (2006) The seasonal abundance and production of Oithona nana (Copepoda: Cyclopoida) in Southampton Water Journal of Plankton Research, 28, (11), pp. 1055-1065. (doi:10.1093/plankt/fbl039).

Record type: Article


Recent studies indicate that Oithona spp. contribute significantly to total copepod biomass. Little is known, however, about their ecological significance, particularly in the case of the estuarine Oithona nana. A study comprising three sites within Southampton Water was conducted to evaluate the late-stage copepodite/adult (stages IV–VI) O. nana community, using 120-µm mesh nets. Although present throughout the estuary, there was a striking spatial gradient with O. nana most common in the upper estuary. A clear seasonal pattern was observed with O. nana as the most abundant copepod species from late summer until early winter. It comprised 61% of all copepods recorded, with a biomass of 757.22 mg C m–3. Production estimates of O. nana were derived from the ‘instantaneous-growth’ approach, using appropriate growth equations. The estimated production of O. nana ranged from 1.50 mg C m–3 year–1 within the lower estuary to 146.77 mg C m–3 year–1 in the upper estuary. In the upper estuary, this compares with production rates of 187.47 mg C m–3 year–1 for all Acartia congeners (excluding nauplii), the most common calanoid genus. Throughout the estuary, O. nana annual production represented 18% of total copepod production clearly indicating that, at least in the upper estuary, O. nana production may be directly comparable with calanoid production.

Full text not available from this repository.

More information

Published date: 2006


Local EPrints ID: 42345
ISSN: 0142-7873
PURE UUID: c2437b69-556f-4ad2-8f89-89511985ef9a

Catalogue record

Date deposited: 29 Nov 2006
Last modified: 17 Jul 2017 15:22

Export record



Author: J.A. Williams
Author: E. Muxagata

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton:

ePrints Soton supports OAI 2.0 with a base URL of

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.