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Burrowing sesarmid crab (family: Grapsidae) and fiddler crabs (family: Ocypodidae) are among the most abundant macrofauna inhabiting the tropical and sub-tropical mangrove forests.
They construct and maintain burrow structures in mangrove sediments with a significant engineering effect on their habitats and associated organisms.
Based on current literature on the biology and ecology of these crabs, there is growing evidence that their activities have considerable impact on ecosystem functioning.
The present study revealed that burrowing grapsid (Helice formosensis and Perisesarma bidens) and fiddler (Uca vocans) crabs are active ecosystem engineers which affect biochemical activities in different ways.
Through burrow construction and maintenance, feeding and production of faeces, they alter sediment physicochemical properties, lipids and fatty acid distributions, organic matter quality and quantities and production of subtropical mangrove forests.
Islam S.S.Mchenga,PhD: Studied Marine and Environmental Science at University of the Ryukyus, Japan.
He works in various researches in the field of marine ecology and environment.
He is the Author of several articles published in international journals.
He is the founder of the Society for Environmental Research and Conservation in Zanzibar.
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