Strategy for assessing impacts in ephemeral tropical seagrasses

Renae Hovey, John Statton, Matt Fraser, Leonardo Ruiz-Montoya, Andrea Zavala Perez, M. Rees, James Stoddart, Gary Kendrick

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)
327 Downloads (Pure)


© 2015 Elsevier Ltd. We investigated the phenology and spatial patterns in Halophila decipiens by assessing biomass, reproduction and seed density in ~. 400 grab samples collected across nine sites (8 to 14. m water depth) between June 2011 and December 2012. Phenology correlated with light climate which is governed by the summer monsoon (wet period). During the wet period, sedimentary seed banks prevailed, varying spatially at both broad and fine scales, presenting a source of propagules for re-colonisation following the unfavourable growing conditions of the monsoon. Spatial patterns in H. decipiens biomass following monsoon conditions were highly variable within a landscape that largely comprised potential seagrass habitat. Management strategies for H. decipiens and similar transient species must recognise the high temporal and spatial variability of these populations and be underpinned by a framework that emphasises vulnerability assessments of different life stages instead of relying solely on thresholds for standing stock at fixed reference sites.
Original languageEnglish
Pages (from-to)594-599
Number of pages6
JournalMarine Pollution Bulletin
Issue number2
Early online date2 Nov 2015
Publication statusPublished - 30 Dec 2015


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