Sedimentary iron inputs stimulate seagrass (Posidonia oceanica) population growth in carbonate sediments

Show simple item record Marbà, N. Duarte, Carlos M. Holmer, Marianne Calleja, Maria Ll. Álvarez, Elvira Díaz-Almela, Elena Garcias-Bonet, Neus 2019-12-10T09:12:38Z
dc.description.abstract [eng] The relationship between sedimentary Fe inputs and net seagrass population growth across a range of Posidonia oceanica meadows growing in carbonate Mediterranean sediments (Balearic Islands, Spain; SE Iberian Peninsula, Spain; Limassol, Cyprus; Sounion, Greece) was examined using comparative analysis. Sedimentary Fe inputs were measured using benthic sediment traps and the net population growth of P. oceanica meadows was assessed using direct census of tagged plants. The meadows examined ranged from meadows undergoing a severe decline to expanding meadows (specific net population growth, from −0.14 yr−1 to 0.05 yr−1). Similarly, Fe inputs to the meadows ranged almost an order of magnitude across meadows (8.6-69.1 mg Fe m−2 d−1). There was a significant, positive relationship between sedimentary iron inputs and seagrass net population growth, accounting for 36% of the variability in population growth across meadows. The relationship obtained suggested that seagrass meadows receiving Fe inputs below 43 mg Fe m−2 d−1 are vulnerable and in risk of decline, confirming the pivotal role of Fe in the control of growth and the stability of seagrass meadows in carbonate sediments.
dc.format application/pdf
dc.relation.isformatof Versió postprint del document publicat a:
dc.relation.ispartof Estuarine Coastal and Shelf Science, 2008, vol. 76, num. 3, p. 710-713
dc.subject.classification 57 - Biologia
dc.subject.classification Geologia
dc.subject.classification Medi ambient
dc.subject.other 57 - Biological sciences in general
dc.subject.other Geology
dc.subject.other Environment
dc.title Sedimentary iron inputs stimulate seagrass (Posidonia oceanica) population growth in carbonate sediments
dc.type info:eu-repo/semantics/article
dc.type info:eu-repo/semantics/acceptedVersion 2019-12-10T09:12:39Z info:eu-repo/date/embargoEnd/2026-12-31
dc.embargo 2026-12-31
dc.rights.accessRights info:eu-repo/semantics/embargoedAccess

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