File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: The relative importance of herbivore-induced effects on productivity of crustose coralline algae: Sea urchin grazing and nitrogen excretion

TitleThe relative importance of herbivore-induced effects on productivity of crustose coralline algae: Sea urchin grazing and nitrogen excretion
Authors
KeywordsAnthocidaris crassispina
Area-specific productivity
Disturbance
Nitrogen excretion
Non-geniculate coralline algae
Rock pools
Issue Date2005
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jembe
Citation
Journal Of Experimental Marine Biology And Ecology, 2005, v. 324 n. 2, p. 141-156 How to Cite?
AbstractIn Hong Kong, the sea urchin, Anthocidaris crassispina (A. Agassiz, 1863), is an important grazer in low-shore rock pools, which are dominated by crustose coralline algae (CCA > 70% cover). The pools are emersed for an average of ∼ 6 h during daytime low tides, at which time the pool water becomes nitrogen enriched, primarily due to urchin excretion. This nitrogen enhancement potentially provides an episodic, additional, nitrogen source for the CCA. Factorial laboratory experiments were conducted to examine whether this nitrogen source contributed to CCA primary productivity and the relative importance of sea urchin induced effects (grazing vs. nitrogen regeneration). Urchin grazing significantly stimulated area-specific CCA productivity, although the CCA showed no response to nitrogen excretion, suggesting these algae were not nitrogen limited. This grazing enhanced CCA productivity apparently facilitates CCA to quickly occupy newly released, small, patches (cm) of bare surface and suggests that top-down (grazing) effects are more important then bottom-up (nitrogen) effects in controlling the dominance of CCA in low-shore, tropical, rock pools. © 2005 Elsevier B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/73100
ISSN
2015 Impact Factor: 1.796
2015 SCImago Journal Rankings: 1.029
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorWai, TCen_HK
dc.contributor.authorWilliams, GAen_HK
dc.date.accessioned2010-09-06T06:48:09Z-
dc.date.available2010-09-06T06:48:09Z-
dc.date.issued2005en_HK
dc.identifier.citationJournal Of Experimental Marine Biology And Ecology, 2005, v. 324 n. 2, p. 141-156en_HK
dc.identifier.issn0022-0981en_HK
dc.identifier.urihttp://hdl.handle.net/10722/73100-
dc.description.abstractIn Hong Kong, the sea urchin, Anthocidaris crassispina (A. Agassiz, 1863), is an important grazer in low-shore rock pools, which are dominated by crustose coralline algae (CCA > 70% cover). The pools are emersed for an average of ∼ 6 h during daytime low tides, at which time the pool water becomes nitrogen enriched, primarily due to urchin excretion. This nitrogen enhancement potentially provides an episodic, additional, nitrogen source for the CCA. Factorial laboratory experiments were conducted to examine whether this nitrogen source contributed to CCA primary productivity and the relative importance of sea urchin induced effects (grazing vs. nitrogen regeneration). Urchin grazing significantly stimulated area-specific CCA productivity, although the CCA showed no response to nitrogen excretion, suggesting these algae were not nitrogen limited. This grazing enhanced CCA productivity apparently facilitates CCA to quickly occupy newly released, small, patches (cm) of bare surface and suggests that top-down (grazing) effects are more important then bottom-up (nitrogen) effects in controlling the dominance of CCA in low-shore, tropical, rock pools. © 2005 Elsevier B.V. All rights reserved.en_HK
dc.languageengen_HK
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jembeen_HK
dc.relation.ispartofJournal of Experimental Marine Biology and Ecologyen_HK
dc.rightsJournal of Experimental Marine Biology and Ecology. Copyright © Elsevier BV.en_HK
dc.subjectAnthocidaris crassispinaen_HK
dc.subjectArea-specific productivityen_HK
dc.subjectDisturbanceen_HK
dc.subjectNitrogen excretionen_HK
dc.subjectNon-geniculate coralline algaeen_HK
dc.subjectRock poolsen_HK
dc.titleThe relative importance of herbivore-induced effects on productivity of crustose coralline algae: Sea urchin grazing and nitrogen excretionen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0022-0981&volume=324&spage=141&epage=156&date=2005&atitle=The+relative+importance+of+herbivore-induced+effects+on+productivity+of+crustose+coralline+algae:+Sea+urchin+grazing+and+nitrogen+excretionen_HK
dc.identifier.emailWai, TC: waitc@hkucc.hku.hken_HK
dc.identifier.emailWilliams, GA: hrsbwga@hkucc.hku.hken_HK
dc.identifier.authorityWai, TC=rp00797en_HK
dc.identifier.authorityWilliams, GA=rp00804en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.jembe.2005.04.010en_HK
dc.identifier.scopuseid_2-s2.0-27644521296en_HK
dc.identifier.hkuros110800en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-27644521296&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume324en_HK
dc.identifier.issue2en_HK
dc.identifier.spage141en_HK
dc.identifier.epage156en_HK
dc.identifier.isiWOS:000233320600005-
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridWai, TC=15039017100en_HK
dc.identifier.scopusauthoridWilliams, GA=7406082821en_HK
dc.identifier.citeulike9447381-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats