A simulation experiment was used to understand the importance of riparian vegetation density, channel orientation and flow velocity for stream energy budgets and river temperature dynamics. Water temperature and meteorological observations were obtained in addition to hemispherical photographs along a ∼1 km reach of the Girnock Burn, a tributary of the Aberdeenshire Dee, Scotland. Data from nine hemispherical images (representing different uniform canopy density scenarios) were used to parameterise a deterministic net radiation model and simulate radiative fluxes.

Wetlands seem to be more vulnerable to invasions compared to terrestrial ecosystems. The alien invasive weed, Ludwigia peruviana, invading the wetlands of the Dhansiri catchment and eastern part of Kopili in Assam has threatened the resident biodiversity and has also posed possibilities of spreading to other wetlands of North East India. The present study was conducted to measure the impact of the weed on the biodiversity of this region, to find out the causes for increasing invasiveness and to suggest a suitable management strategy.

“What else is a lake,” asked the NGT bench headed by Justice Swatanter Kumar.

The present paper deals with relation between zooplankton and physico-chemical parameters.

Biomass studies are fundamental to understand the dynamics of ecological systems and its distribution. It helps in determining the distribution and flow of materials in the ecosystems. The primary productivity of different vegetation types is of great importance for man as he is so much dependent upon plant products.

This new FAO report provides an overview of the global aquaculture status and development trends resulting from a series of regional reviews; Asia-Pacific, Europe, Latin America and the Caribbean, Near East and North Africa, North America and Sub-Saharan Africa, conducted by FAO in 2010.

The Western Ghats is one of the world’s most heavily populated biodiversity hotspots providing for and supporting 400 million people. However, these diverse freshwater ecosystems face many threats because of untrammelled economic development.

Floating gardening, a form of hydroponics using aquatic plants as the medium, is a traditional cultivation system in southern Bangladesh practiced for year-rouund seedling and vegetable production. The livelihoods of marginalized people of the wetlands in North-eastern Bangladesh are often constrained by 7-8 months water stagnation due to floods. A pioneering attempt at scaling up floating gardening in this haor region coincided with repeated, devastated floods in 2007.

Heavy metals are one of the prominent sources of pollution in industrial wastewater and excessive presence of these metals is causing severe health and environmental problems.

The congress, to be held from December 27 to 31, focusses on including biodiversity in policy-making
In danger: Some of the exotic plants to be displayed at the Indian
THIRUVANANTHAPURAM: The Malabar Botanical Garden Society, a grant-in-aid institution under the State government, will exhibit an assorted and rare collection of 32 aquatic plant species, most of them facing extinction, at the firs

Pages