Seagrass, sediment and infauna - a comparison of Posidonia australis, Posidonia sinuosa and Amphibolis antarctica, Princess Royal Harbour, South-Western Australia I. Seagrass biomass, productivity and contribution to sediments

The above- and below-ground biomass of three seagrass species, Posidonia australis, Posidonia sinuosa and Amphibolis antarctica, were measured within Princess Royal Harbour. Three sites were used of varying water movement and eutrophication. Sediment samples (to measure grain size and composition) were taken from below seagasses and from adjacent non-vegetated areas for comparsion and productivity measurements were carried out in situ.

本研究在皇家公主港（Princess Royal Harbour）内对3种海草的地上与地下生物量进行了测定，受试物种为澳洲波喜荡草（Posidonia australis）、波叶波喜荡草（Posidonia sinuosa）及南极腋花藻（Amphibolis antarctica）。本研究选取了3个水动力条件与富营养化程度存在差异的研究位点。研究人员分别从海草床下方及邻近无植被区域采集沉积物样品以检测其粒度与组成，用于对照分析，并原位开展了生产力测定。