Aquaculture is nothing new. It arose multiple times in indigenous societies where coastal population densities of “seafood eating peoples” increased beyond the carrying capacities of natural, aquatic ecosystems to provide for them. There have been many “blue revolutions” throughout history! Aquaculture has a long, fascinating pre-history with well documented “blue revolutions” occurring through...

Aim Spatial dynamics and habitat connectivity affect community composition and diversity in many ecosystems. For many decades, diversity patterns in riverine ecosystems were thought to be related to local environmental conditions. Recent theoretical work, however, suggests that diversity in rivers is strongly affected by dispersal along the dendritic landscape structure and that environmental c...

This paper describes the priority parameters for water quality monitoring currently used by a wide range of government, educational and private agencies in a variety of aquatic systems. Water quality monitoring has become a global priority to ensure that the economic, ecological and recreational value of natural and man-made waterways are sustained. Priority parameters will differ depending on ...

This article presents a review of the analytical relevance of trace metal speciation analysis, which must be considered in environmental and biophysicochemical systems for reliable and efficient assessment and monitoring of trace metals. Examples are given of methodological approaches used for speciation analysis. An overview of speciation analysis in sediments, aquatic ecosystems and agrosyste...

Animals are important and conspicuous elements inPacifi c Island ecosystems. They are crucial to the fl ow of energy and nutrients within ecosystems and they strongly infl uence, and in some cases control, the species composition and population structure of communities. Determining which animal species are present in an area and what they do is crucial to understanding how ecosystems function a...

Triclosan (TCS) has been widely used as an antibacterial and antifungal agent in household cleaning and personal care products. The widespread use of TCS in the cleaning products poses a potential risk to the ecological system and human health due to its release into sediments, wastewater and ground water resources causing chronic toxicity to aquatic organisms. Therefore, it is necessary to dev...

River health monitoring traditionally has made use of structural measurements (water quality or taxonomic composition of aquatic organisms). We argue that a more complete assessment of river health should include functional metrics, such as rates of organic matter decomposition and ecosystem metabolism. Leaf breakdown links the characteristics of riparian vegetation with the activity of both aq...

The textile dyeing units of Pallipalayam area of Namakkal District play a vital role in polluting the river Cauvery directly and spoiling the underground water levels indirectly by letting off their dyeing effluents. This leads to serious environmental hazards of aquatic organisms. In the present study, the textile dyeing effluents of six major textile dyeing units (ST1, ST2, ST3, ST4, ST5 and ...