Free Content Effect of a newly set up wastewater-treatment plant on a marine phanerogam seagrass bed — a medium-term monitoring program

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Abstract:

Although the impact of declining environmental conditions on marine phanerogam seagrass beds has been well documented, the reverse phenomenon, notably the natural recolonization of seagrass beds following an improvement in water quality, has received very little attention. In light of this, and following the establishment, in 1987, of a wastewater-treatment plant in the city of Marseilles (Mediterranean, France), the bottom cover and vitality of a Posidonia oceanica seagrass bed was followed closely. The objectives of this study were to understand the development of these plants, which are true indications of water quality, by monitoring a number of parameters (e.g., location of the seagrass bed, density, leaf biometry). The results reveal that there has been an overall improvement in the vitality of the P. oceanica seagrass beds since 1987. Thus, natural recolonization phenomena are occurring and would seem to indicate that the seagrass beds are able to respond positively, in the medium term, to reductions in anthropogenic impacts.

Document Type: Research Article

Publication date: November 1, 2002

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  • The Bulletin of Marine Science is dedicated to the dissemination of high quality research from the world's oceans. All aspects of marine science are treated by the Bulletin of Marine Science, including papers in marine biology, biological oceanography, fisheries, marine affairs, applied marine physics, marine geology and geophysics, marine and atmospheric chemistry, and meteorology and physical oceanography.
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