The University of Southampton
University of Southampton Institutional Repository

Effect of phytoplankton growth on air bubble residence time in seawater

Kuhnhenn-Dauben, V., Purdie, D.A., Knispel, U., Voss, H. and Horstmann, U. (2008) Effect of phytoplankton growth on air bubble residence time in seawater Journal of Geophysical Research, 113, C06009-[17pp]. (doi:10.1029/2007JC004232).

Record type: Article


Laboratory experiments were carried out in a seawater mesocosm tank to investigate the influence of marine phytoplankton growth on air bubble residence time (BRT). Air bubbles of 10–1000 ?m in diameter were injected by flushing a water jet into the top of the tank and BRT was determined acoustically. The tank was filled with seawater containing a natural phytoplankton population and growth stimulated by irradiating with artificial fluorescent light. A second experiment was conducted using a monoculture of the diatom Cylindrotheca closterium. BRT and several phytoplankton growth-related parameters (chlorophyll concentration, dissolved inorganic nutrients, dissolved organic carbon (DOC), oxygen saturation and bacteria numbers) as well as the water viscosity were monitored over periods of up to 24 days. BRT showed a statistically significant covariation with oxygen saturation (r = 0.69, ? = 0.01 for natural phytoplankton; r = 0.93, ? = 0.01 for the Cylindrotheca closterium) and chlorophyll concentration (r = 0.69, ? = 0.05 natural phytoplankton; r = 0.76, ? = 0.01 Cylindrotheca closterium) during phytoplankton growth periods. Increases in BRT of a factor >2 were found during the chlorophyll maximum, when the water was sufficiently supersaturated with oxygen (?>110%). No clear relationship was evident between BRT and measurements of DOC or water viscosity. Model experiments with highly oxygen-supersaturated water and artificial polysaccharide compounds indicated that oxygen supersaturation alone is not the main factor causing increased BRT during phytoplankton growth, but it is most likely a combination of the degree of gas saturation and the composition of the organic exudates derived from the microalgal population.

Full text not available from this repository.

More information

Published date: 2008
Keywords: Phytoplankton, bubbles, residence time


Local EPrints ID: 52065
ISSN: 0148-0227
PURE UUID: 4f81ec74-b6ee-4924-9c42-9b1ef4d98c16

Catalogue record

Date deposited: 13 Jun 2008
Last modified: 17 Jul 2017 14:45

Export record



Author: V. Kuhnhenn-Dauben
Author: D.A. Purdie
Author: U. Knispel
Author: H. Voss
Author: U. Horstmann

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.