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Observations on the rate of growth, sexual maturity and breeding of four sedentary organisms from the Madras harbour

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Relation http://eprints.cmfri.org.in/937/
 
Title Observations on the rate of growth, sexual maturity and breeding of four sedentary organisms from the Madras harbour
 
Creator Antony Raja, B T
 
Subject Marine Biodiversity
 
Description The destruction caused to the underwater harbour installations and ships' bottom
by the accumulation of sedentary organisms drew the attention of workers in
temperate and subtropical regions to a study of the biology and ecology of such
animals as a preliminary step in tackling' the antifouling problem. It has been
observed under tropical conditions that fouling is more pronounced due to prolonged
period of breeding activity, settlement in larger numbers and constant
organic growth (Edmondson, 1944 ; Pyefinch, 1947 ; Daniel, 1954). A fact-finding
survey to determine the members of the fouling community, their abundance
in relation to different environmental conditions, seasonal or ecological succession,
if any, their rate of growth and breeding activities will contribute much towards
an understanding of the fouling problem. In an earlier paper the author (Antony
Raja, 1959) has dealt with the distribution and succession of sedentary organisms
of the Madras harbour with a discussion on the influence of environmental factors.
Except for a preliminary survey of marine borers of the Cochin harbour (Erlanson,
1936), observations on the growth of a few sedentary organisms of the Madras
harbour (Paul, 1942) and brief records from the Vizakhapatnam harbour (Ganapati
et al., 1958), information regarding the growth rate of marine sedentary organisms
of sheltered waters is not available. Hence an attempt is made here to estimate
the rate of growth, size at sexual maturity and breeding of four sedentary organisms,
namely, Modiolus striatulus. Bowerbankia sp., Cynthia sp., and Dasychone cingulata
as a continuation of Paul's work, which has not dealt with the above forms.
 
Publisher MBAI
 
Date 1963
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/937/1/Article_10.pdf
Antony Raja, B T (1963) Observations on the rate of growth, sexual maturity and breeding of four sedentary organisms from the Madras harbour. Journal of the Marine Biological Association of India, 5 (1). pp. 113-132.