THE BIOLOQY OF WOOD-BORING TEREDINID MOLLUSCS
46 1
h v y Salvador and Prudon (1930). Poblete (1916) found that piles
driven near the discharge outlet of a gas plant in Valparaiso Bay
remained unattacked while Nicholson (1925) and Wedekind (1950)
record that oil pollution can keep teredo out of untreated timbers.
When the pollution abated attack was resumed. That pollution of
harbour waters is unfavourable for shipworm activity is also evident
from the studies of Roch (1926) and Nair (1962). Nair (1962) observed
that the activity of mat-forming fouling organisms over timber structures in areas with sewage pollution, such as the Bergen harbour, is
beneficial since these organisms form a protective cover against the
h a . 48. Four wooden test panels showing the nature of marine fouling organisms
chiefly ascidians and polyzoans. (From Nitir, 1962.)
46 1
h v y Salvador and Prudon (1930). Poblete (1916) found that piles
driven near the discharge outlet of a gas plant in Valparaiso Bay
remained unattacked while Nicholson (1925) and Wedekind (1950)
record that oil pollution can keep teredo out of untreated timbers.
When the pollution abated attack was resumed. That pollution of
harbour waters is unfavourable for shipworm activity is also evident
from the studies of Roch (1926) and Nair (1962). Nair (1962) observed
that the activity of mat-forming fouling organisms over timber structures in areas with sewage pollution, such as the Bergen harbour, is
beneficial since these organisms form a protective cover against the
h a . 48. Four wooden test panels showing the nature of marine fouling organisms
chiefly ascidians and polyzoans. (From Nitir, 1962.)