Structure and production in a detritus rich estuarine mangrove swamp

A.G. Untawale, T. Balasubramanian, M.V.M. Wafar


Productivity studies in a detritus rich mangrove swamp showed that the aquatic component of this ecosystem is heterotrophic (P/R = 0.77). 14C assimilation ranged from 1.92 to 7.49 mgC m-3 hr-1. Chlorophyll a values ranged from 0.08 to 1.76 mg m-3. In contrast to this the mangrove flora are abundant in this region, contributing to large amount of detritus. These observations add evidence to the concept of a 'detritus food chain' than a 'grazing food chain' between autotrophs and heterotrophs in these waters


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