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NET INSITU GROWTH-RATES OF PHYTOPLANKTON IN AN OLIGOTROPHIC, TROPICAL SHELF ECOSYSTEM

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dc.contributor Australian Inst Marine Sci
dc.contributor Australian Institute Of Marine Science
dc.contributor Australian Institute Of Marine Science (aims) en
dc.contributor.author FURNAS, MJ
dc.date.accessioned 2013-02-28T06:50:19Z
dc.date.accessioned 2013-02-28T06:50:19Z
dc.date.accessioned 2017-03-21T01:17:14Z
dc.date.accessioned 2019-07-08T02:08:53Z
dc.date.available 2013-02-28T06:50:19Z
dc.date.available 2013-02-28T06:50:19Z
dc.date.available 2017-03-21T01:17:14Z
dc.date.available 2019-07-08T02:08:53Z
dc.date.issued 1991-01-01
dc.identifier 2366 en
dc.identifier.citation Furnas MJ (1991) Net in situ growth rates of phytoplankton in an oligotrophic, tropical shelf ecosystem. Limnology and Oceanography. 36: 13-29. en
dc.identifier.issn 0024-3590
dc.identifier.uri http://epubs.aims.gov.au/11068/2366
dc.description.abstract In situ growth rates of phytoplankton in tropical shelf waters of the Great Barrier Reef were measured with diffusion chambers. A broad disparity was observed between the growth responses of diatom species or assemblages (mu-max = 2-5 doublings d-1) and assemblages of microflagellates, nonmotile ultraplankton, or phototrophic picoplankton (mu-max < 2 doublings d-1). Several diatom species or groups consistently grew faster than the community Chl doubling rate (mu-max = 1.6 doublings d-1). Most dominant species and groups, regardless of taxonomic affiliation, exhibited the potential for high relative growth rates (mu/mu-max > 0.5) at ambient concentrations of dissolved inorganic N < 0.2-mu-mol liter-1 and the time-averaged diurnal irradiances in situ > 50-mu-Einst m-2 s-1. If relative constancy in phytoplankton standing crop and composition is to be maintained, grazing rates must vary widely at the species level, but be broadly similar to growth rates over time scales of days. Although the full 40-80-m water column in the central Great Barrier Reef lies the euphotic zone, phytoplankton growth rates near the bottom seem to be light limited.
dc.language English
dc.language en en
dc.relation.ispartof Null
dc.relation.ispartof Limnology and Oceanography - pages: 36: 13-29 en
dc.subject Limnology
dc.subject Dynamics
dc.subject Marine & Freshwater Biology
dc.subject Community
dc.subject Narragansett-bay
dc.subject Continental-shelf
dc.subject Oceanography
dc.subject Marine-phytoplankton
dc.subject Coral-reef
dc.subject Populations
dc.subject Division Rates
dc.subject Great Barrier-reef
dc.subject Waters
dc.title NET INSITU GROWTH-RATES OF PHYTOPLANKTON IN AN OLIGOTROPHIC, TROPICAL SHELF ECOSYSTEM
dc.type journal article en
dc.identifier.wos WOS:A1991FL67600002


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