Lake Timsah, which lies almost half-way the Suez Canal, is highly populated with fouling assemblages consisting of algae, sponges, coelenterates, tube worms, bryozoans, barnacles, amphipods, molluscs and ascidians.
Tube worms (Hydroides elegans), barnacles (Balanus eburneus andB. amphitrite) and amphipod tubes represented the major fouling constituents.
Heaviest settlement occurred from May to September and during this period a panel immersed only for one month was covered with a thick layer of fouling organisms. Fouling was slight in the coldest months (December–February).
The majority of foulers appeared at short-term exposure but sponges,Styela partita and molluscs arrived after longer periods. No correlation could be established between the density of fouling and the duration of exposure.
The uppermost two metres were the most populated part of the lake and fouling nearly vanished below 5 m depth largely due to the high salinity and turbidity.
KeywordsHigh Salinity Thick Layer Suez Canal Fouling Organism Tube Worm
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