Learning Path Construction Based on Ant Colony Optimization and Genetic Algorithm

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Not AvailableEver increasing human population, habitat destruction and pollution along the Mumbai coast are some of the major threats to molluscan fauna. Molluscs form a major group of organisms that makes-up an integral part of mangrove ecosystems. A study, carried out in 8 mangrove areas of Mumbai, west coast ofIndia,fromAugust2015toMay2016,revealedadistributionof61molluscanspecies,representedby 46 gastropods, 14 bivalves and 1 polyplacophora. The number of species reported from the study is the secondhighestforthemangroveecosystemsofIndia,afterAndamanandNicobarIslandsmangroves.The study also reports 2 new distributional records for gastropods, namely Salinator fragilis and Auriculastra subula.ThemolluscandiversitywasthehighestinthemangrovesofVersova,north-westernMumbai.The molluscanspeciesdiversityfrommangroveecosystemalongtheMumbaicoasthasbeendocumentedin detailinordertoprovideusefulbaselinedataforsupportingconservationmanagement.Not Availabl

Vegetativestructureandspeciescompositionofmangrovesalongthe Mumbaicoast,Maharashtra,India

Not AvailableThemangrovesofMumbaicoasthavewitnessedsignificantdegradationinrecenttimes.Althoughstudies on mangrove floristics of Mumbai coast started in 1905, no comprehensive efforts have been made to assess the vegetative structure and regeneration pattern. Considering these facts, field surveys were carriedoutin8selectedsitesinMumbaicoastduringAugust2015toMay2016,usingquadratmethod.A total of 10 species belonging to 5 families and 8 genera were recorded. The average tree density was recorded to be 635 individuals ha−1 varying from 325 to 708, whereas basal area of mangroves was found to be 11.16 m2 ha−1, varying between 5.60 and 28.26 m2 ha−1. Avicennia marina constituted 50% of the Important Value Index, 78% of tree density, 71% of basal area and 75.63% of the total juvenile density, indicating the dominance of this species in the mangroves of Mumbai coast. The low values of diversity indices (H’ =0.90) and complexity index (Ic=3.77) indicate the low species diversity and poor structuraldevelopmentofmangrovesalongtheMumbaicoast.Itindicatesthatimmediateconservation andmanagementmeasuresshouldbetakentopreservethemangrovespeciesdiversityofMumbaicoastNot Availabl