Iron additions revert seagrass (Posidonia oceanica) decline in carbonate sediments

Show simple item record Marbà, N. Calleja, M. Duarte, C.M. Álvarez, E. Díaz-Almela, E. Holmer, M. 2019-12-10T09:31:21Z 2019-12-10T09:31:21Z
dc.description.abstract [eng] We conducted a 2-year in situ experiment to test the capacity of iron additions to reverse the decline experienced by a Posidonia oceanica meadow colonizing carbonate, iron poor sediment. Iron additions improved the sediment conditions that support seagrass growth by decreasing the sediment sulfide concentration and sulfate reduction rates, and decreased sulfide intrusion into the plants. Iron additions for 2 years did not significantly change survivorship of shoots present at the onset of the experiment, but significantly increased shoot recruitment and survivorship of shoots recruited during the experiment. After 2 years, iron additions reversed seagrass decline and yielded positive growth rates of shoots relative to control populations where seagrass continued to decline. This research demonstrates that seagrass decline in carbonate sediments may be reversed by targeting critical processes such are sediment sulfide pools and seagrass nutritional status, controlling the functioning of the ecosystem.
dc.format application/pdf
dc.relation.isformatof Versió postprint del document publicat a:
dc.relation.ispartof Ecosystems, 2007, vol. 10, num. 5, p. 745-756
dc.subject.classification 57 - Biologia
dc.subject.classification Medi ambient
dc.subject.other 57 - Biological sciences in general
dc.subject.other Environment
dc.title Iron additions revert seagrass (Posidonia oceanica) decline in carbonate sediments
dc.type info:eu-repo/semantics/article
dc.type info:eu-repo/semantics/acceptedVersion 2019-12-10T09:31:21Z
dc.rights.accessRights info:eu-repo/semantics/openAccess

Files in this item

This item appears in the following Collection(s)

Show simple item record

Search Repository

Advanced Search


My Account