Kodaikkanal, India, suffered mercury contamination due to emissions and waste from a thermometer factory. Kodai Lake is situated to the north of the factory. The present study determined mercury in waters, sediment and fish samples and compared the values with those from two other lakes, Berijam and Kukkal. Total mercury (Hg(T)) of 356-465 ng l(-1), and 50 ng l(-1) of mercury in methyl mercury ...

A newly developed low cost system for fish-farm wastewater treatment was evaluated. The system consisted two major parts: (1) a new type of square tank design with two separate outlets, i.e. one centrally positioned high solids concentration outlet and one corner located low solids concentration primary outlet; and (2) a stationary bowed screen for solid removal from the high solids effluent. R...

Microbial populations associated with methanogenic fixed- or floating-bed bioreactors used for anaerobic digestion of lignocellulosic waste were investigated. Fluorescent in situ hybridization (FISH) was used to characterize microorganisms in samples obtained from different heights in the reactors, which were operated in a semi-continuous manner (feeding and mixing once every 2 days). The FISH ...

Under German law, federal ministries are responsible for preparing legislation, while federal states (Länder) are responsible for applying the legislation. The author describes the system, contrasting it with the situation in former East Germany, where preparation and application of legislation were controlled centrally. The author also describes the various inland water fisheries Acts and regu...

Anaerobic digestion (AD) is one of the few sustainable technologies that both produce energy and treat waste streams. Driven by a complex and diverse community of microbes, AD may be affected by different factors, many of which also influence the composition and activity of the microbial community. In this study, the biodiversity of microbial populations in innovative mesophilic/thermophilic te...

Spirulina sp. is one of the potential microalgae as a source protein because it contains 100% vegetable protein. Fisheries industry wastewater lot and fat, resulting in quite high values, nitrates ammonia. Fish waste can be used raw material for organic fertilizer that grow besides producing biomass reduce burden pollution. In this case, researchers want to know growth rate media liquid from fi...

Fish have habitats that are easily exposed to contamination from the environment such as heavy metal waste which can cause changes in structure and function of body tissues. One type enters river Lebong Regency River is gold mining processing uses mercury cyanide. Heavy metals enter organisms accumulation biomagnification occur bodies aquatic biota fish. There has been no research related fish ...

The EU last month announced its allowable quotas for various species within its waters for this coming year that fishermen will be able to land and sell. The aim behind the quotas is to limit fishing in an effort to preserve stocks at sustainable levels, but the policy is being shown increasingly to be damaging many stocks, caught by fishermen pursuing one species but catching others, which oft...

influence many biological and physical processes of the planet. Moreover, 60% of the human population lives on or near the coast. Thus, it almost goes without saying that ocean health and human health are inextricably linked. Recently, however, these linkages have become more conspicuous to scientists (e.g., Knap et al. 2002) and policy makers (e.g., Oceans and Human Health Act 2003) with the p...

The aquatic environment has always been subjected to different types of pollutants of industrial, domestic and agricultural wastes (Mance, 1987; Kalay and Canli, 2000) which severely affect the aquatic organisms. Beaumont et al., (2000) and Almeida et al., (2001) reported that rapid industrialization in India has resulted into a substantial increase in the liquid waste (spent wash or effluent),...