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Article: Nutrients increase epiphyte loads: Broad-scale observations and an experimental assessment

TitleNutrients increase epiphyte loads: Broad-scale observations and an experimental assessment
Authors
Issue Date2005
Citation
Marine Biology, 2005, v. 147, n. 2, p. 551-558 How to Cite?
AbstractThere is a global trend towards elevated nutrients in coastal waters, especially on human-dominated coasts. We assessed local- to regional-scale relationships between the abundance of epiphytic algae on kelp (Ecklonia radiata) and nutrient concentrations across much of the temperate coast of Australia, thus assessing the spatial scales over which nutrients may affect benthic assemblages. We tested the hypotheses that (1) percentage cover of epiphytic algae would be greater in areas with higher water nutrient concentrations, and (2) that an experimental enhancement of nutrient concentrations on an oligotrophic coast, to match more eutrophic coasts, would cause an increase in percentage cover of epiphytic algae to match those in more nutrient rich waters. Percentage cover of epiphytes was most extensive around the coast of Sydney, the study location with the greatest concentration of coastal chlorophyll a (a proxy for water nutrient concentration). Elevation of nitrate concentrations at a South Australian location caused an increase in percentage cover of epiphytes that was comparable to percentage covers observed around Sydney's coastline. This result was achieved despite our inability to match nutrient concentrations observed around Sydney (<5% of Sydney concentrations), suggesting that increases to nutrient concentrations may have disproportionately larger effects in oligotrophic waters. © Springer-Verlag 2005.
Persistent Identifierhttp://hdl.handle.net/10722/212813
ISSN
2015 Impact Factor: 2.375
2015 SCImago Journal Rankings: 1.302

 

DC FieldValueLanguage
dc.contributor.authorRussell, Bayden D.-
dc.contributor.authorElsdon, Travis S.-
dc.contributor.authorGillanders, Bronwyn M.-
dc.contributor.authorConnell, Sean D.-
dc.date.accessioned2015-07-28T04:05:06Z-
dc.date.available2015-07-28T04:05:06Z-
dc.date.issued2005-
dc.identifier.citationMarine Biology, 2005, v. 147, n. 2, p. 551-558-
dc.identifier.issn0025-3162-
dc.identifier.urihttp://hdl.handle.net/10722/212813-
dc.description.abstractThere is a global trend towards elevated nutrients in coastal waters, especially on human-dominated coasts. We assessed local- to regional-scale relationships between the abundance of epiphytic algae on kelp (Ecklonia radiata) and nutrient concentrations across much of the temperate coast of Australia, thus assessing the spatial scales over which nutrients may affect benthic assemblages. We tested the hypotheses that (1) percentage cover of epiphytic algae would be greater in areas with higher water nutrient concentrations, and (2) that an experimental enhancement of nutrient concentrations on an oligotrophic coast, to match more eutrophic coasts, would cause an increase in percentage cover of epiphytic algae to match those in more nutrient rich waters. Percentage cover of epiphytes was most extensive around the coast of Sydney, the study location with the greatest concentration of coastal chlorophyll a (a proxy for water nutrient concentration). Elevation of nitrate concentrations at a South Australian location caused an increase in percentage cover of epiphytes that was comparable to percentage covers observed around Sydney's coastline. This result was achieved despite our inability to match nutrient concentrations observed around Sydney (<5% of Sydney concentrations), suggesting that increases to nutrient concentrations may have disproportionately larger effects in oligotrophic waters. © Springer-Verlag 2005.-
dc.languageeng-
dc.relation.ispartofMarine Biology-
dc.titleNutrients increase epiphyte loads: Broad-scale observations and an experimental assessment-
dc.typeArticle-
dc.description.natureLink_to_subscribed_fulltext-
dc.identifier.doi10.1007/s00227-005-1571-3-
dc.identifier.scopuseid_2-s2.0-20944443633-
dc.identifier.volume147-
dc.identifier.issue2-
dc.identifier.spage551-
dc.identifier.epage558-

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