Changes in Macroalgal Communities in the Vicinity of a Mediterranean Sewage Outfall After the Setting Up of a Treatment Plant

摘要

Benthic macroalgal communities of the upper rocky sub- littoral were studied in 1995-1996 in the vicinity of the Marseille (mediterranean, Franece) sewage outfall, 8 years After the setting up of a wastewater treatment plant and Compared to a previous study carried out in 1972-1974. The number of taxa has increased, a clear stational sand Seasonal gradient of differentiation of the vegetation ap- Peared, and a turf of ephemeral species is taking place of Corallian elongata at sites close to the outfall.