Length-frequency studies on the Malabar sole, Cynoglossus semifasciatus Day at West Hill, Calicut, during the years 1959-60 to 1962-63.

Some observations were made on the age and growth along with other aspects of the biology of the Malabar sole, Cynoglassus semifasciatus Day at West Hill, Calicut during the years 1949 to 1952 (Seshappa and Bhimachar, 1951. 1954 & 1955). The length-frequency studies were found to be very useful in the assessment of age and growth in the above work and the utility of the growth-rings of the scales in the age-determination of the species was also proved. Length-frequency studies were again started on this fish at the Calicut Sub-Station of the Central Marine Fisheries Research Institute from March 1959 onwards, and the present communication incorporated the results of these observations during the period March 1959 to March 1963. This gives a comparative picture of the size and growth trends in this species after a considerable interval during which regular observations were suspended. There is no other published work on length-frequencies in this species subsequent to the above-mentioned publications