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Short-term nutrient pulses as tools to assess responses of coral reef macroalgae to enhanced nutrient availability

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dc.contributor Australian Institute Of Marine Science
dc.contributor James Cook Univ N Queensland
dc.contributor Cooperat Res Ctr
dc.contributor James Cook University
dc.contributor Australian Inst Marine Sci
dc.contributor Australian Institute Of Marine Science (aims) en SCHAFFELKE, B 2017-03-21T00:52:00Z 2017-03-21T00:52:00Z 2013-02-28T06:46:06Z 2019-05-09T01:04:03Z 2013-02-28T06:46:06Z 2017-03-21T00:52:00Z 2017-03-21T00:52:00Z 2019-05-09T01:04:03Z 1999-01-01
dc.identifier 8370 en
dc.identifier.citation Schaffelke B (1999) Short-term nutrient pulses as tools to assess responses of coral reef macroalgae to enhanced nutrient availability. Marine Ecology Progress Series. 182: 305-310. en
dc.identifier.issn 0171-8630
dc.description Link to abstract/full text - en
dc.description.abstract Inshore coral reefs of the Great Barrier Reef, Australia, are subjected to episodic nutrient inputs, mainly by rain and riverine run-off during the summer wet season. Increased nutrient availability, potentially caused by human activity, is assumed to enhance the production of primary producers. To simulate increased nutrient inputs, 6 species of coral reef macroalgae were treated with short-term (24 h) nutrient pulses of 10 mu M ammonium and/or 1 mu M phosphate. Sargassum baccularia, an inshore perennial algae, had a similar to 50% higher net photosynthetic rate and similar to 40% higher tissue nutrients after nutrient addition. The net photosynthetic rates of the inshore, ephemeral species Chnoospora implexa, Hydroclathrus clathratus, and Padina tenuis increased by similar to 30 to 50% and the tissue nutrient levels by 10 to 20 % after a single nutrient pulse. Two perennial species, Chlorodesmis fastigiata and Turbinaria ornata, which occur inshore as well as on reefs further offshore, did not respond to nutrient addition with higher production, however, accumulated 15 to 20% more tissue nutrients than untreated thalli. The different responses to nutrient pulses of macroalgal species with different Life cycles and distributional ranges provide important information for the prediction of the response of whole inshore reef communities.
dc.description.uri en
dc.language English
dc.language en en
dc.relation.ispartof Null
dc.relation.ispartof Marine Ecology Progress Series - pages: 182: 305-310 en
dc.relation.uri en
dc.subject Great-barrier-reef
dc.subject Ecology
dc.subject Sargassum-baccularia
dc.subject Growth
dc.subject Photosynthesis
dc.subject Tissue Nutrients
dc.subject Australia
dc.subject Eutrophication
dc.subject Environmental Sciences & Ecology
dc.subject Limited Productivity
dc.subject Nitrogen
dc.subject Coral Reef-macroalgae
dc.subject Marine & Freshwater Biology
dc.subject Communities
dc.subject Oceanography
dc.subject Queensland
dc.subject Nutrient Pulse
dc.subject Phase-shifts
dc.title Short-term nutrient pulses as tools to assess responses of coral reef macroalgae to enhanced nutrient availability
dc.type journal article en
dc.identifier.doi 10.3354/meps182305 en
dc.identifier.wos WOS:000081336200027

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