The University of Southampton
University of Southampton Institutional Repository

Seasonality and selectivity in the feeding ecology and reproductive biology of deep-sea bathyal holothurians

Record type: Article

Chlorophyll and carotenoid pigments were determined from the gut sediments of five species of bathyal holothurian in the NE Atlantic, sampled shortly after the spring/summer phytoplankton bloom in 2001 and prior to the spring bloom in 2002. Three species, Laetmogone violacea, Paroriza pallens and Bathyplotes natans, sampled within a similar depth range (900–1100 m) in the summer of 2001 showed significant differences in their chlorophyll and carotenoid pigment concentrations. This suggests they may select for slightly different components from the available food resource. Four species sampled in early spring 2002, Laetmogone violacea, Paroriza pallens, Benthogone rosea and Benthothuria funebris, also had significant differences in their pigment concentrations. These species were sampled over a wider depth range (1000–3100 m) showing a bathymetric trend in pigment concentrations. There was a distinct seasonal change in the composition and concentration of the pigments, linked to a reduction in the availability of fresh organic material during autumn and winter periods.
Ovarian tissue was also examined. The carotenoid pigments found in the ovary also occurred in the OM ingested by the holothurians. The dominant gonadal carotenoid pigments were beta-carotene, echinenone and zeaxanthin. The potential for using these carotenoids to gain a competitive advantage through selectivity of chlorophyll and carotenoid pigment biomarkers are discussed in relation to competition for food resources by deposit-feeders. The results were also compared with selectivity in abyssal species.

Full text not available from this repository.

Citation

Hudson, I.R., Wigham, B.D., Billett, D.S.M. and Tyler, P.A. (2003) Seasonality and selectivity in the feeding ecology and reproductive biology of deep-sea bathyal holothurians Progress in Oceanography, 59, (4), pp. 381-407. (doi:10.1016/j.pocean.2003.11.002).

More information

Published date: 2003

Identifiers

Local EPrints ID: 11185
URI: http://eprints.soton.ac.uk/id/eprint/11185
ISSN: 0079-6611
PURE UUID: 8aea0ec7-e717-4f71-954a-bf776aac8afb

Catalogue record

Date deposited: 28 Oct 2004
Last modified: 17 Jul 2017 17:04

Export record

Altmetrics


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.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

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.

×