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Journal of the Marine Biological Association of India
Timber vulnerability to teredenid (Mollusca: Bivalvia) infestations at Mangalore.
Five species of timber commonly used in marine environs along the Dakshin Kannada Coast viz.. Teak ( Tectona grandis), Jack (Artocarpus integrifolia), Aini (Pterocarpus hirsuta), Sampige (Michaelia champaka) and Neralu (Eugenia sp.) have been evaluated for their vulnerability to teredenid infestations, when submerged for 360 days in the sea at Hoige Basar fish landing jetty, Mangalore. The timber Species were graded in respect of their susceptibility to shipworm attack, in the order Teak (least susceptible) Jack, Sampige, Aini and Neralu (most susceptible). Intensity of infestation on the exposed panel surfaces were found to be more along the bottom followed by the top and the side. Submergence of timber for certain duration in sea water was found to be necessary for the onset of teredenid settlements.
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The Marine Biological Association of India C/o Mandapam Regional Centre of CMFRI Marine Fisheries P. O, Mandapam Camp, Ramanathapuram District, Tamil Nadu- 623 520