Show simple item record

dc.contributor.authorAdame, Maria Fernanda
dc.contributor.authorWright, Sara F.
dc.contributor.authorGrinham, Alistair
dc.contributor.authorLobb, Kellie
dc.contributor.authorReymond, Claire E.
dc.contributor.authorLovelock, Catherine E.
dc.date.accessioned2018-01-23T01:01:05Z
dc.date.available2018-01-23T01:01:05Z
dc.date.issued2012
dc.identifier.issn1939-5590
dc.identifier.doi10.4319/lo.2012.57.5.1492
dc.identifier.urihttp://hdl.handle.net/10072/142304
dc.description.abstractGlomalin, an arbuscular mycorrhizal protein component of soil, can be used as an indicator of terrigenous-derived carbon. We measured glomalin in sediments using the terrestrial end-member as a reference in four coastal settings: (1) intertidal seagrass meadows distributed over a rainfall gradient, (2) sediments inshore and offshore from the mouth of a river, (3) coastal coral reefs at various distances from the shore, and (4) intertidal wetlands with varying levels of groundwater influence. Across the rainfall gradient, glomalin in seagrass meadow sediments increased at sites with high mean annual rainfall during the wet season (r2 = 0.27; F1,29 = 5.75; p = 0.029). Glomalin decreased in inshore river sediments (terrestrial) to offshore (marine) sediments (r2 = 0.81; F1,17 = 71.7; p ≤ 0.0001). Furthermore, glomalin in reef sediments decreased with distance from the shore. The high intertidal was rich in glomalin where groundwater flowed directly into the wetland compared with those with little groundwater influences. Our data indicate that rivers and groundwater transport terrestrial material, and that mangroves, salt marsh, seagrass meadows, and coral reefs accumulate it, but the connections vary among sites, within sites, and seasonally. Variations in glomalin concentrations are indicative of links between the terrestrial and marine environment that reflect proximity, filtration services, and the level of subsidies that marine ecosystems derive from terrestrial sources. Assessment of glomalin contributes to evaluating terrestrial–marine connectivity, and thus provides knowledge to improve catchment management for the protection of marine ecosystems.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherAmerican Society of Limnology and Oceanography
dc.relation.ispartofpagefrom1492
dc.relation.ispartofpageto1502
dc.relation.ispartofissue5
dc.relation.ispartofjournalLimnology and Oceanography
dc.relation.ispartofvolume57
dc.subject.fieldofresearchEcosystem Function
dc.subject.fieldofresearchEarth Sciences
dc.subject.fieldofresearchEnvironmental Sciences
dc.subject.fieldofresearchBiological Sciences
dc.subject.fieldofresearchcode050102
dc.subject.fieldofresearchcode04
dc.subject.fieldofresearchcode05
dc.subject.fieldofresearchcode06
dc.titleTerrestrial-marine connectivity: Patterns of terrestrial soil carbon deposition in coastal sediments determined by analysis of glomalin related soil protein
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.hasfulltextNo Full Text
gro.griffith.authorAdame Vivanco, Fernanda


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

  • Journal articles
    Contains articles published by Griffith authors in scholarly journals.

Show simple item record