Received on 27 July 2000 Accepted on 27 September 2000 Abstract The freshwater aquatic biodiversity is depleting alarmingly due to the introduction of exotic species and other anthropogenic activities. The indiscriminate transfer of exotic fishes has brought about a wide array of problems including extirpation of indigenous species. The exotics compete with the indigenous species for food, habi...

Under rapid land use change, high demand on freshwater ecosystem services, and a growing appreciation for the value of functioning ecosystems, the Appalachian Piedmont has developed a multi-million dollar stream restoration industry. A comprehensive understanding of ecosystem structure, function, and process is necessary to effectively plan, design, monitor, and adaptively manage these projects...

Lagoons are habitat islands in the coastal landscapes characterised by both among ecosystems 1 heterogeneity, due to different terrestrial-freshwater, freshwater-marine interfaces, and within ecosystem heterogeneity, due patchy spatial and temporal distribution of biotic and abiotic

• it stores and releases large quantities of heat, freshwater and soluble gases, • heat, freshwater and gas releases are sometimes substantially separated in space and time from their point of storage, due to ocean dynamics and mixing • freshwater and gas fluxes are determined partly by direct and indirect effects of ocean surface temperatures • carbon fluxes, storage and natural sequestration ...

Interrelation, competition and environmental consequences of microaerophilic, nitratereducing and phototrophic Fe(II) oxidation in freshwater and marine sediments A. KAPPLER, K. LAUFER, M. NORDHOFF, J. OTTE, F. SCHAEDLER, C. LOCKWOOD, C. SCHMIDT, S. KLEINDIENST, C. BRYCE, N. BLACKWELL, H. ROY, B. B. JORGENSEN, B. SCHINK Geomicrobiology, University of Tuebingen, Germany, Geomicrobiology, Aarhus ...

freshwater fish biodiversity is a precious natural asset in terms of economic, cultural and scientific interest. and yet, the inland freshwater ecosystem in malaysia is declining at a far greater rate than terrestrial ecosystems in the tropics. what happened, and what is being done to address the crisis? this paper extracts findings from the latest literature and explores overarching issues per...

Dissertation title: EFFECTS OF ANNUAL AND PERENNIAL COMMUNITY DYNAMICS ON TIDAL FRESHWATER MARSH ECOSYSTEM FUNCTIONING Kristine Noel Hopfensperger, Doctor of Philosophy, 2007 Dissertation directed by: Dr. Katharina A.M. Engelhardt Dr. Sujay S. Kaushal Program of Marine, Estuarine, Environmental Science Tidal freshwater marshes are complex systems with many linkages between the physical, chemica...

Deforestation is one of the world’s greatest land-use habitat alterations (Scarsbrook and Halliday, 1999). Specifically, tropical environments, where the rate of deforestation is currently increasing and changing not only the landscape, but the quality of water draining it, are the sites for the greatest freshwater biodiversity loss and system simplification (Boyero and Bailey, 2001). For examp...

The ability of an organisation to recognise the value of new external information, acquire it, assimilate it, transform, and exploit it, namely its absorptive capacity (AC), has been much researched in the context of commercial organisations and even applied to national innovation. This paper considers four key AC-related concepts and their relevance to public sector organisations with mandates...