| || Observation on fouling organisms collected from Indian naval ships at Bombay
Author : Gopalakrishnan, V. ;Kelkar, V.V.
Source : Defence Science Journal ; Vol:9(1) ; 1959 ; pp 23-30
Subject : 621.78.019.84 Corrosion;623.8 Naval Science
Keywords : Organisms ;Ships ;Hydroids ;Polyzoans
Abstract : Fouling organisms collected from Indian Naval Ships dry-docked at Bombay during a period of two years (July 1956-June 1958) were studied in detail. Forty six of the forms collected have been identified. The most important groups of ship-fouling Organisms in Bombay waters are Barnacles, Hydroids, Polyzoans and Tube-worms. Eleven different Fouling Communities have been found to dominate the settlements on the hulls at different occasions. Definite zonations that could be observed were restriction of green algae to the boot-top area and mussels and oysters to the pipes and gratings. An attempt has been made to find the sequence of settlement of the different major fouling groups. Some general remarks on the observations have also been included.
| || Observation on the breeding activity of the shore barnacle chthamalus malayensis pilsbry in Bombay harbor
Author : Karande, Ashok A. ;Palekar, V.C.
Source : Defence Science Journal ; Vol:13(1) ; 1963 ; pp 130-137
Subject : 623.8 Naval Science
Keywords : Chthamalus malayensis ;Breeding ;Shore barnacle ;Organisms
Abstract : A prerequisite for rearing larval stages of barnacles which form an important group amongst the fouling organisms is adequate knowledge of the breeding habits and the time and duration of their reproductive phase. Such knowledge is also useful for assessing the results of the field toxicity tests. The present paper gives an account of the breeding behaviour of the shore barnacle, Chthamalus malayensis, which is found in great abundance along the Bombay coast. If the breeding behaviour of Ch. malayensis reported in the paper represents that of other barnacles in Bombay harbor, the seasonal variations in barnacle settlement reported by other workers can be understood.