A A Karande
Articles written in Proceedings – Animal Sciences
Volume 88 Issue 1 February 1979 pp 73-83
Six naupliar stages of
Volume 97 Issue 2 March 1988 pp 141-149
The overgrowth interactions and spatial relationships amongst 7 interacting bryozoan species in the coastal waters of Bombay were studied. All interspecific encounters involved overgrowth, there being a total absence of ties. On the other hand, in intraspecific encounters, occurrence of ties was quite high. It was observed that a superior overgrowth of any species did not determine its relative abundance. None of the 7 species studied won in all its overgrowth interactions with the others. It was further observed that the success of cheilostome species to dominate over the others did not depend on their ability to grow over through any one particular encounter angle. Ranking of competitive overgrowth abilities amongst the 7 species studied did not form a simple hierarchial sequence but instead formed a competitive network.
Volume 98 Issue 1 January 1989 pp 65-76
The dreissenid mussel
Volume 98 Issue 4 July 1989 pp 223-231
Compressive and adhesive strengths of 7 barnacles endemic to Bombay shore were ascertained by using Instron universal testing machine. The adhesive strengths of balanid species settled on man-made materials like bakelite, asbestos, perspex, rubber, glass and teflon were determined. The adhesion on teflon was found to be the poorest. Comments are made on the compressive strengths of barnacles and their shell macrostructures. A need for the adoption of uniform method of the preparation of shell samples as well as of instrumental technique has been suggested for computing fresh data for the representative species.
Volume 99 Issue 2 March 1990 pp 163-173
Field and laboratory studies were carried out to analyse the development of biofilms generated on various metallic and non-metallic coupons immersed in coastal waters of Bombay. It is observed that the nature of the biofilm formed not only varies from substratum to substratum but is also influenced by the quality of water, flow conditions and the biotic status of the seawater. The biofilms depending upon the degree of entrapment of the inorganic detritus have varying weights. The biofilms formed on metallic surfaces when compared with perspex surface, are both qualitatively and quantitatively richer. Cupro-nickel, despite its toxicity, supports denser film than the one developed on inert perspex surface. The metallic coupons, both inert and toxic, support thicker films in polluted waters than in clean waters.