Below: Installation of the Fouling Plates by Chris Blondeau and Pearson College Diving Students in July, 2005. This video shows the installation process for the research project carried out to determine which surfaces discouraged growth in the waters at Race Rocks.
In the spring of 2005, a set of plates made up of 5 different materials and coatings was deployed in the centre of the main channel, straight out from the docks at Race Rocks. This is the result on Nov 2005 results- (qualitative)
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- This is one of the replicates, removed for scraped samples on Nov. 9,2005. Plate numbers are on linked enlargement. The make up of the coatings will be supplied separately.
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- Plate1
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- Plate1
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- Filamentous algae and grazed diatoms on plate 1. microscopic images were taken at 100X
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- Plate2
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- Plate2
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- A mix of diatoms and red algae on Plate 2. The small black dot is a baby chiton which is one of many small invertebrates that graze diatoms
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- Plate3
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- Plate 3
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- Plate 4
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- Plate 4
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- Plate5
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- Plate 5
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- Red filamentous algae growing among diatoms on plate 5.
ONE YEAR LATER June 09, 2006
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- This is one set of the replicates, removed one year later on June 09, 2006..
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- Red filamentous algae growing on the aluminum surface at the base of the stand.
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- Severe pitting and build up of white crusty mounds of Aluminum oxide on the stand.
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- Early succession of Lithothamnion and other algaes
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- Plastic bolts
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- Stainles steel bolts
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- Plate 1 Stainless Steel, After the year of submersion, both this stainless plate and the titanium plate have minimum fouling.
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- Stainless Steel. Grazing by small snails and chitons is evident by tracks on the plates.
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- Plate 2 Titanium
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- Plate 4 Titanium
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- Plate 3: a plastic coating
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- Plate 3 Plastic
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- Plate 3-Plastic
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- Plate 4 ICI Coating
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- Plate4 ICI
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- Plate5 Interguard coating
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- Si Coat on the white side
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- Plate 5 Interguard coating: Showing 1cm barnacle growing on base after coating is eroded. Interguard coating.
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- Plate 5 Interguard