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Environmental And Coastal Hydraulics : Protecting The Aquatic Environment: The 27th Congress Of The International Association For Hydraulic Research

RRP $434.99

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This proceedings, "Environmental and Coastal Hydraulics: Protecting the Aquatic Environment", contains papers presented at the 27th Congress of the International Association of Hydraulic Research (IAHR) entitled "Water for a Changing Global Community." These two volumes cover topics ranging from basic research in fluid flow, mixing, sediment transport, turbulence, and interactions among flow, sediment, vegetation, and structures to applications in contaminant transport, coastal zone management, stream habitat restoration, water quality, waterway rehabilitation, and wetlands. In addition, research and engineering methodologies such as instrumentation, measurement, physical modeling, field monitoring, and computational modeling are discussed.


Physical Effects Of Wet Weather Flows On Aquatic Habitats

RRP $24.99

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This study explores the current state of knowledge with respect to the effects of wet weather flows from urban areas on the physical character of aquatic habitat. It identifies knowledge gaps with respect to our ability to define the cause-effect relationships, examines the comprehensiveness of the data used in support of the published literature in the subject area, and makes a qualitative determination of the usefulness of those data for further analysis to increase our knowledge in the subject area. Finally, it recommends further research studies that will increase our knowledge in the subject area, with emphasis on pilot-scale projects that can be used to develop practical protocols for preventing or mitigating the effects. Major findings and conclusions are: 1) we lack a solid conceptual framework for predicting the impact of large-scale watershed modifications and wet weather flows on ecological processes that influence stream communities; 2) there is a need for longer-term monitoring; 3) there is no widely accepted system for quantifying geomorphic instability and degradation of physical habitat; 4) there is a need for process-based stream classification; 5) specific links between urbanization characteristics and stream degradation are lacking; 6) there is a need for urban best management practice (BMP) assessment standards; and 7) developing a multi-scale understanding of habitat potential in human-dominated watersheds is needed. The report recommends a research program that first and foremost, includes comprehensive, long-term monitoring augmented with mathematical modeling of the linkages between development style/drainage system design, flow regime, and multi-scale changes in physical habitat and biotic response. Improved diagnosis and predictive understanding of future change require multifaceted, multiscale, and multidisciplinary studies based on a firm understanding of the history and processes operating in a drainage basin. Detailed long-term analyses of the influence of hydrologic regime and channel morphology on differences between communities in recruitment, immigration/emigration, mortality, and age structure are also needed. Finally, future research should directly examine tradeoffs between: 1) flood mitigation versus channel roughness, habitat heterogeneity, debris inputs, and riparian protection; 2) chemical water quality improvement through extended detention versus geomorphically-based flow regime controls; and, 3) rehabilitation of aquatic habitat using static features versus allowing the potential for dynamic adjustments in channel form and habitat structure. It is extremely important that the research be pragmatic, and focus on developing pilot/demonstration studies that will lead to design guidance that municipalities can use to design new systems, or improve existing systems, that will protect not only the safety and welfare of the citizenry that it serves, but also the aquatic ecosystems in the streams that receive the wet weather discharges from these urbanized sites.


Nano-aquarium

RRP $15.99

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A nano-aquariumA a¬athat is, a small-volume aquariumA a¬arequires special attention because decline in water quality and increased fish stress levels change in inverse proportion as tank sizes become smaller. Two aquarium experts tell hobbyists everything they need to know about setting up a miniature aquarium. All titles in BarronA a¬a s profusely-illustrated " Complete Pet OwnerA a¬a s Manuals " introduce inexperienced and prospective pet owners to the pleasures and duties of pet care. They also make ideal guides for older children having their first experiences as animal caretakers. Attractively illustrated and filled with helpful information, " BarronA a¬a s Complete Pet OwnerA a¬a s Manuals " advise on purchasing, housing, feeding, health careA a¬aand where applicable, grooming and training pets. Each book is individually written by an expertA a¬aa trainer, breeder, veterinarian, or other animal specialist. These manuals cover every popular dog and cat breed, as well as bird varieties, hamsters and other small caged animals, fish varieties for aquarium hobbyists, terrarium pets, and even exotics, such as reptiles, amphibians, and scorpions. All books have 70 or more color photos, and most also have instructive line illustrations.



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Aqua Zero Articles

Bottled Water Drink Water Water H2O
Aqua Water Park Diving Underwater
Ocean Cave Diving Waterproof Water Park
Swimming Pool Softened Water Water Air Harvesting Water

Aqua Zero Books

Bottled Water Drink Water Water H2O
Aqua Water Park Diving Underwater
Ocean Cave Diving Waterproof Water Park
Swimming Pool Softened Water Water Air Harvesting Water

Aqua Zero