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Phytoplankton biomass, production and grazing mortality in Exmouth Gulf, a shallow embayment on the arid, tropical coast of Western Australia

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dc.contributor Australian Institute Of Marine Science (aims) en
dc.contributor Australian Inst Marine Sci
dc.contributor Australian Institute Of Marine Science
dc.contributor.author MILLER, D
dc.contributor.author AYUKAI, T
dc.date.accessioned 2017-03-21T01:16:54Z
dc.date.accessioned 2013-02-28T06:48:20Z
dc.date.accessioned 2013-02-28T06:48:20Z
dc.date.accessioned 2018-11-01T03:14:35Z
dc.date.available 2017-03-21T01:16:54Z
dc.date.available 2017-03-21T01:16:54Z
dc.date.available 2013-02-28T06:48:20Z
dc.date.available 2018-11-01T03:14:35Z
dc.date.issued 1998-07-31
dc.identifier 1351 en
dc.identifier.citation Ayukai T and Miller DL (1998) Phytoplankton biomass, production and grazing mortality in Exmouth Gulf, a shallow embayment on the arid, tropical coast of Western Australia. Journal of Experimental Marine Biology and Ecology. 225: 239-251. en
dc.identifier.issn 0022-0981
dc.identifier.uri http://epubs.aims.gov.au/11068/1351
dc.description Link to abstract/full text - http://dx.doi.org/10.1016/S0022-0981(97)00226-8 en
dc.description.abstract Phytoplankton biomass, production and grazing mortality were measured in Exmouth Gulf, a shallow embayment on the arid, tropical coast of Western Australia. In the Gulf, chlorophyll a concentrations were typically 0.2-0.3 mg m(-3) and phytoplankton production rates were mostly below 25 mg of C m(-3) d(-1). The low phytoplankton biomass and production in the Gulf are seemingly related to the aridity of the region and hence the small terrestrial runoff of nutrients. In dilution experiments, which complemented C-14 incorporation experiments, the proportion of potential primary production grazed ranged from 79 to 155% in the fluorometric analysis of chlorophyll a and from 73 to 191% in the HPLC analysis of chlorophyll a. There may be some excess phytoplankton production on the relatively well flushed, western side of the Gulf. On the eastern side of the Gulf, however, the estimated grazer biomass ranged between 4.6-8.8 mg of C m(-3), not much less than the estimated phytoplankton biomass (6-15 mg of C m(-3)), and this grazer population appeared to consume more organic matter than the phytoplankton population could produce. The disproportionally large grazer biomass and the relatively high grazing mortality of phytoplankton may be due to the supply of additional organic matter from benthic macroalgal communities and/or mangrove and salt flat systems present on the eastern side of the Gulf. (C) 1998 Elsevier Science B.V.
dc.description.uri http://dx.doi.org/10.1016/S0022-0981(97)00226-8 en
dc.language English
dc.language en en
dc.publisher Elsevier Science en
dc.relation.ispartof Null
dc.relation.ispartof Journal of Experimental Marine Biology and Ecology - pages: 225: 239-251 en
dc.subject Phytoplankton
dc.subject Marine & Freshwater Biology
dc.subject Production
dc.subject Ecology
dc.subject Communities
dc.subject Growth
dc.subject Tropical Embayment
dc.subject Grazing Mortality
dc.subject Environmental Sciences & Ecology
dc.subject Rates
dc.title Phytoplankton biomass, production and grazing mortality in Exmouth Gulf, a shallow embayment on the arid, tropical coast of Western Australia
dc.type journal article en
dc.identifier.doi 10.1016/S0022-0981(97)00226-8 en
dc.identifier.wos WOS:000074666700005


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