अवसाद उत्सर्जन और तटीय क्षेत्र म्रं इसका पारिस्थितिक परिणाम

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समुद्री घास पर्यावरण व्यवस्था संरक्षण और प्रबंधन की आवश्यकता

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Seagrass distribution and its vulnerability in India

The coastal vegetation is of specialized nature, which grows under different conditions with one ecosystem linked to the other including the coral reefs. The vegetation can be classified into four groups 1. Marine algae or seaweeds 2. Seagrasses, 3. Mangroves and 4. Sanddune vegetation,which grows on a sandy shore beyond the highest high tide level. Seagrasses are submerged angiospermic monocotyledon plants. They are adapted to the marine environment and complete their life cycle underwater In contrast to other submerged marine plants (e.g. seaweeds), sea grasses flower, fruit and produce seeds. They also have true roots and internal system for the transport of gases and nutrient. They generally grow in shallow coastal water from the inter-tidal zone to depths up to 10m. In turbid estuarine environment, such as the Indian coast, where there is an enormous deposition of silt into the sea by major rivers, sea grasses are rarely encountered at depths below 10m. In less turbid areas, such as the Caribbean sea and Australian coast, sea grasses can be found at depths of 50m or more

“Garbage doesn’t have to be a dirty thing”

Waste Impact Trust is a NGO founded by Ms. Gayitri Handanahal who has served for 13 years in the social sector under diverse areas such as skill development among BPL Self Help Groups, Safe drinking water with the Naandi Foundation. For the last four years she has been working in Solid Waste Management. She conceptualized and coordinated a programme namely, “Reimagine Waste” as a series of Waste Hackathons in collaboration with the Centre for Product Design and Manufacturing (CPDM) at the Indian Institute of Science (IISc). These hackathons have specific themes on waste and are supported by corporates and institutions through 4-day events and the post hackathon activities. Hackathons provide a platform for creativity to find low cost, high impact solutions for day to day problems of waste management using technology. The unique aspect of these hackathons is that the vulnerable communities are part of the hacking teams and contribute to solutions from conception to prototyping to creating business plans

RAMKY GROUP- Experts in domestic waste management

Ramky Group since inception in 1994 in Hyderabad has been focusing on developing projects that positively impact both the environment and the economy. As part of the blueprint to be an active participant in global economic progress, Ramky Group has augmented potential in key growth sectors including Water and waste water management, Transportation, Industrial Infrastructure, Commercial, Residential, Social, Institutional and Irrigation Infrastructure, Environment Management, Energy Generation, transmission and distribution. Major operations of the group are conducted through companies sucha as Ramky Infrastructure Limited (RIL), Ramky Environ Engineers Limited (REEL), Ramky Estates and Farms Limited (REFL), Ramky Life Sciences Limited (RLSL) and Ramky Life Sciences Limited(RLSL)

Solid waste management in Mangaluru

Mangaluru, the fourth largest city in Karnataka State is situated in the west coast of Southern India. It is the fast growing city in education, commerce and industry. The city with more than 5.5 lakh population faces the challenges of dealing with its solid waste. The rapid urbanization and changing lifestyles have led to the generation of huge amount of garbage and wastes in the urban areas. The initiative by Mangaluru City Corporation (MCC) could successfully collect the solid waste generated within Mangaluru City and process it at centralized processing plant at Pachanady of the City Corporation. The raw waste received at the site is pre-sorted and further sent to processing shed. The pre-sorted waste materials are being used as a raw material for windrow composting and vermin-composting. Some percentage of hotel waste and market waste is being used for bio-methanation plant. The rejects from windrow, vermin-composting and bio-methanation plant is sent to sanitary landfill site

रामेश्वरम द्वीप के तटीय अवसादों की स्थिरता और नितलस्थ जीव

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Enhalus acoroides (L.f.) Royle fruits observed in Gulf of Mannar

Seagrass are angiospermous plants adapted to grow in marine environment. Seagrass meadows are the nursery ground for many commercially important shrimps, crabs and fishes. Its root mat adds stability to the sediments of coastal zone and the leaves help filter the water of suspended particles. There are 13 genera and about 52 species of seagrass distributed throughout the world

Mariculture of Kappaphycus alvarezii in the coastal waters of Palk Bay: crisis due to climate change or carrying capacity?

Gradual expansion in the cultivation of carrageenan yielding red alga, Kappaphycus alvarezii in the Palk Bay from the year 1996 reached its peak in 2012. Large scale introduction of numerous rafts bearing propagules of this marine alga within the bay area registered tremendous decline in the production due to decay of thallus and poor growth since August 2013. At present more than 50% of the rafts were abandoned in the shore due to drastic reduction in yield and for want of sufficient seed material required for subsequent crop. Analysis of data on SST and nutrient profile of seawater from Palk Bay area demands need for urgent carrying capacity studies for optimum biomass production. It is advisable to restrict the number of rafts (3 x 3 m size) to 225 and seed quantity of 5.4 to 6.0 tonnes per hectare

Marine litter in the coastal environment of Mangalore

The continuous flow of large quantities of plastics and waste from land and sea based sources result in a gradual build up of litter in the marine and coastal environment. Plastics and other man-made objects cause serious impacts on environment, economics, safety and health. Worldwide, millions of marine mammals, birds, turtle and fish perish as a result of entanglement or ingestion of discarded debris. Marine litter spoils beaches, floats on the sea surface, drifts in the water column due to the current and is also found on the deep sea bed