Ramasamy Ramasubramanian

M S Swamininathan Research Foundation | MSSRF · Coastal Systems Research

Mangroves of South India and Sri Lanka, and Maldives is a regional ecosystem subgroup (level 4 unit of the IUCN Global Ecosystem Typology). It includes the marine ecoregions of Western India, South India and Sri Lanka, and Maldives. The mapped extent in 2020 was 249.2 km 2 , representing 0.2% of the global mangrove area. The environmental settings...

Manual for Mangrove Nursery

A new mangrove species is reported

Outlined the Mangrove Restoration Techniques

Godavari mangrove wetland in Andhra Pradesh is one of the important coastal wetlands providing livelihood security to the coastal community and ecological security to the coastal areas. Mangroves are potential carbon sinks contributing reduction in the impacts of climate change. Despite these benefits, mangroves are being degraded due to both manma...

Evapotranspiration denotes the transport of water vapor between an ecosystem and atmosphere comprising the biotic (transpiration) and abiotic (evaporation) components. Additionally, the water vapor transports the energy used for its vaporization, the latent heat. In the present study we compare the ecohydrological cycle of a mangrove on the Bay of...

The atmospheric methane (CH4) concentration has increased in recent years due to natural and anthropogenic causes. Hence, it is essential to quantify the potential sources of CH4 to understand the factors responsible for its fluxes on a local to regional scale through in situ observations. Coastal wetlands, particularly the mangrove ecosystems in t...

Creating an Economic Stake in Conservation: A Case of Sustainable fishery resource management from Godavari Mangrove wetlands of Andhra Pradesh. This chapter deals with fishery resources of Godavari mangrove wetland

Mangrove ecosystems play a crucial role in the global carbon cycle. However, the carbon fluxes in the mangrove ecosystems found in the Indian subcontinent are not well understood. Here, for the first time, we estimate the net ecosystem exchange (NEE) in a mangrove ecosystem at Pichavaram, southeast India, using the eddy covariance method for the pe...

Mangrove ecosystem is one of the important coastal ecosystems providing ecological security of the coastal area and livelihood security to the coastal fishermen. Besides it plays an important role in carbon sequestration as large amount of carbon is stored in the below ground biomass. The role of mangrove restoration in carbon stocking has not been...

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The genus Rhizophora belonging to the family Rhizophoraceae are known for their natural interspecific hybrids. The essential oil composition of Rhizophora apiculata, Rhizophora mucronata and Rhizophora x annamalayana were identified using GC-MS analysis. Pentadecyl ester bromoacetic acid (14.72%), eugenol (26.16 %) and n-tetratriacontane (8.43 %) w...

Development of a spectral library is a prerequisite for the higher order classification of satellite data and hyperspectral image analysis to map any ecosystem with rich diversity. In this study, sampling methodology, collection of field and laboratory spectral signatures and post-processing methodologies were investigated for developing an exclusi...

Deals with the revolving fund for the fisher women for small scale fish vending

The extent of mangroves within and outside the Coringa Marine Protected Area (MPA) is classified into dense, medium, and sparse mangroves using Normalized Difference Vegetation Index (NDVI). The result of the study indicated that there is a marginal increase in the dense and medium dense mangroves from 9989.88 ha in 1988 to 10894.13 ha in 2010. The...

Mangrove Forest Restoration in Andhra Pradesh dealing the process, methods and impacts

Deals with eco-friendly shrimp farming for the small scale aqua farmers to sustain aquaculture practices

The expansion of agriculture and aquaculture farms in the coastal areas has led to conversion of mangroves in the recent past. The extent of mangroves has also changed due to the erosion of mangroves along the coast and accretion near river mouths, leading to the formation of new mangrove areas. This study has been undertaken in the mangroves of th...

Hydrobiological studies were conducted in the coastal waters of Madras for one year from July 1988 to June 1987. Data on environmental variables such as temperature, pH dissolved O 2, biochemical O 2 demand, nitrate-nitrogen, ammonia-nitrogen, phosphate-phosphorus, silicate-silicon, heavy metals such as copper, iron, manganese and zinc and primary...

When the water was stagnant due to sand bar formation, salinity showed no marked diel variations whereas when the mouth was in open condition salinity fluctuated widely with two peaks. When the mouth was closed, dissolved oxygen was below detection limit during the night hours but fluctuated 0.1-8.82 mg.l⁻¹ during day time. Among the dissolved nutr...

Analysis of water in the storm water channel and the Ooty lake was carried out bimonthly at seven sampling stations for various physico-chemical and biological characteristics from November 1987 to October 1988. Nutrients were generally high both in the storm water channel and in the lake. Among them, ammoniacal nitrogen showed inverse relation wit...

The lake is eutrophic, supporting very rich algal blooms. Phytoplankton counts as well as organic production were high in the lake all through the year, coinciding with high nutrients and chlorophyl a. On days when primary production was high dissolved oxygen was also high. -from Authors

Small patches of mangroves comprising Avicennia mariana (dominant), Excoecaria agallocha and Sonneratia apetala were found. Average height of A. marina in the Adyar and Cooum stand was 2-3 m, whereas in the Ennore swamp it was c1.5 m. Soil properties (texture, salinity and nutrients) were more or less similar in all the three mangrove stands. Const...