文章基本信息

标题：Quantifying Potential Benefits to Microcystic aeruginosa through Disentrainment by Buoyancy within an Embayment of a Freshwater River
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作者：Simon M. Mitrovic ; Lee C. Bowling ; Rodney T. Buckney 等
期刊名称：Journal of Freshwater Ecology
印刷版ISSN：0270-5060
电子版ISSN：2156-6941
出版年度：2001
卷号：16
期号：2
页码：151-157
DOI：10.1080/02705060.2001.9663800
出版社：Taylor & Francis
摘要：Vertical profiles of Mcrocystis aeruginosa and other phytoplankton were measured on several occasions within the main channel and an embayment of a freshwater tidal river. The cyanobacteria M. aeruginosa and Anabaena circinalis were able to migrate to surface waters within the embayment but not within the main channel. Using a quantitative estimate of primary productivity (over a 24 hour period), the potential benefits through disentrainment by buoyancy were determined for M. aeruginosa within the embayment and compared to the main channel. The population within the embayment had a daily integral of photosynthesis of 603.13 mmol of O 2 m -2 , nine times greater than the evenly distributed main channel population with a daily integral of 62.08 mmol of O 2 m -2 . It is likely that embayments along the tidally mixed reaches of the Hawkesbury River may be areas where M. aeruginosa can disentrain through buoyancy and enhance primary productivity rates.