INTRODUCTION
Reproductive Ecology of any fish is essential for assessing commercial potentialities of its stock, life history, culture practice and actual management of its fishery (Lagler, 1956). Reproductive potential of a population is one of the basic exigencies to designate the individuals of that population in respect to their gonadal conditions. In order to make success in fish culture, it is important to assess the yearly breeding cycle of culturable fishes. Spawning of fish occurs during a particular phase of the reproductive cycle. Some of them breed once annually while others at regular intervals throughout the year. Knowledge of gonadal development and the spawning season of a species allow subsequent studies on spawning frequency of its population, which is important for its management. A thorough understanding of the early development of a fish species is also considered an important step for the fish calturists. Very little works has been done in such direction in this country. Few works deserve worth mentioning viz., Afroze and Hossain (1990), Hossain et al. (1991), Nargis and Hossain (1992) and Parween et al. (1993).
Survey of available literature reveal that works on the fecundity of different fishes have been done in this country by many researchers like Miah and Dewan (1984), Afroze end Hossain (1990)., Faruq et al. (1996), Kabir et al. (1998), Wahab et al. 2003, Kohinoor (2000), Kohinoor et al. (2003), Mazid and Kohinoor (2003). In view of economic importance and food value of this fish it is very important to collect the information of Reproductive Ecology of A. mola for better scientific management and conservation of this important fish species. Keeping this in mind the present study has been undertaken

MATERIALS AND METHODS

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