Experimental evidence of reduced particle resuspension within a seagrass (Posidonia oceanica L.) meadow

Jorge Terrados*, Carlos Duarte

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

121 Scopus citations

Abstract

Dried leaf fragments of the Mediterranean seagrass Posidonia oceanica were used as tracer particles to test if seagrass leaf canopies reduce particle resuspension. Half Petri dishes containing a known mass of tracer particles were deployed for 24 h, five times during the summer period inside a 15-m deep P. oceanica meadow and on an adjacent sandy bottom devoid of vegetation. The loss of tracer particles was consistently high (> 62.9% of initial particle mass) at sand stations, while both high (> 79.2% of initial particle mass) and low (< 47.7% of initial particle mass) losses were recorded at P. oceanica stations. The loss of tracer particles was lower (P < 0.01) within the P. oceanica meadow than over barren sand, which supports the hypothesis that seagrass leaf canopies are able to reduce particle resuspension.

Original languageEnglish (US)
Pages (from-to)45-53
Number of pages9
JournalJournal of Experimental Marine Biology and Ecology
Volume243
Issue number1
DOIs
StatePublished - Jan 1 2000

Keywords

  • Mediterranean Sea
  • Particle resuspension
  • Posidonia oceanica
  • Seagrasses

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Aquatic Science

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