20 research outputs found

    Reptiles

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    List of commonly observed reptiles in mangroves are give

    Zooplankton fauna

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    The zooplankton population consists of minute animals living freely in water with limited powers of locomotion and is more or less drifted passively by water currents. Almost every major group of animals, either as adults, larvae or as both has its representatives in planktonic existence. Many of the commercially important prawns, mussels, other shellfishes and finfishes start their life as plankters. The communities of zooplankton form the vital intermediary link in the food chain of the sea both as consumers of the primary producers and as contributors to the higher trophic level. Many species are proven indicators of pollution, water mass, cold, warm, surface or deep waters, upwelling characteristics and of the coastal or estuarine environment depending on the time of their occurrence and the ambient ecological parameters

    Crustacea (Crab)

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    Brachyuran crabs, a bioenergetically significant group constitute one of the most dominant macrobenthic faunal components in all the mangrove ecosystems of the world. Several species of commercially important crabs like - Scylla serrata occur in mangroves. Brachyuran crabs play significant role to maintain the steady state condition of mangrove ecosystems several ways. The feedig activities of detritivore crabs such as - Uca, Macrophthalmus, Dotilla, Sesarma etc. help in the degradation of organic matter, especially mangrove litters and decaying woods. They also influence the functioning of mangrove ecosystems as burrowers since their repeated burrowing and reburrowing activities enhance the soil aeration, mixing of different soil profiles, nutrient cycling, maintaining of fluidity etc. (Montague, 1980, 1982 ; Bertness, 1985). Furthermore, crabs create a wide variety of bioturbation structures which are very significant for trapping sediments and mangrove seeds (Choudhury and Choudhury, 1994). In India several taxonomic works on estuarine and mangrove brachyuran crabs have been done (Chakraborty et al.,1986; Mandal and Nandi, 1989; Chakraborty and Choudhury, 1992; Dev Roy and Das, 2000 etc.). A total of 55 species of brachyuran crabs under 31 genera have been reported earlier from the mangrove habitats of India (Dev Roy and Das, 2000). Eighteen species of brachyuran crabs under 9 genera and 4 families were identified from Sundarbans Mangrove Ecosystems (Chakraborty and Choudhury, 1992)

    Ichthyofauna of the Mangrove Ecosystem

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    The mangroves are breeding, nursery, feeding and hiding grounds for a certain group of finfish, crustacea and shellfish among the aquatic fauna and include those which enter from the sea as well as those which migrate down from the upstream stretches of rivers. An inventory of the ichthyofauna of the mangrove ecosystems has been prepared as part of a NATP project to assess the biodiversity

    Micro algae

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    The present work pertains to the micro flora of selected mangroves of India. The littoral diatoms are found to occur in the sediment as well as attached to the decaying leaves of mangrove plants. Few of them are true plankton, which are brought to the mangroves during high tide. Altogether 48 genera and 2 general of blue green have been described under which 80 species have been found in the Indian mangroves

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    Not AvailableThe present work pertains to the micro flora of selected mangroves of India. The littoral diatoms are found to occur in the sediment as well as attached to the decaying leaves of mangrove plants. Few of them are true plankton, which are brought to the mangroves during high tide. Altogether 48 genera and 2 general of blue green have been described under which 80 species have been found in the Indian mangroves.Not Availabl

    Not Available

    No full text
    Not AvailableThe present work pertains to the micro flora of selected mangroves of India. The littoral diatoms are found to occur in the sediment as well as attached to the decaying leaves of mangrove plants. Few of them are true plankton, which are brought to the mangroves during high tide. Altogether 48 genera and 2 general of blue green have been described under which 80 species have been found in the Indian mangroves.Not Availabl

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    Not AvailableList of commonly observed reptiles in mangroves are givenNot Availabl

    Not Available

    No full text
    Not AvailableList of commonly observed reptiles in mangroves are givenNot Availabl

    Not Available

    No full text
    Not AvailableThe zooplankton population consists of minute animals living freely in water with limited powers of locomotion and is more or less drifted passively by water currents. Almost every major group of animals, either as adults, larvae or as both has its representatives in planktonic existence. Many of the commercially important prawns, mussels, other shellfishes and finfishes start their life as plankters. The communities of zooplankton form the vital intermediary link in the food chain of the sea both as consumers of the primary producers and as contributors to the higher trophic level. Many species are proven indicators of pollution, water mass, cold, warm, surface or deep waters, upwelling characteristics and of the coastal or estuarine environment depending on the time of their occurrence and the ambient ecological parameters.Not Availabl
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