The Dry Valleys harbor the only permanently ice-covered lakes on Earth. The permanent ice covers greatly reduce wind-driven mixing, gas exchange between the atmosphere and the water column, light penetration, and the deposition of sediments.
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Provides instructions for establishing ponds and marshes in order to attract wild ducks to farmlands. Discusses the recreational benefits of watching and hunting ducks.
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Discusses the benefits of biological balance on ranches and farms. Describes ways to allow wildlife to flourish for the purposes of hunting, trapping, fishing and other recreation.
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Library Holdings.
Limitations from reduced light and increasing water depth on Nelumbo lutea seedlings were determined in tank experiments. Survival was high in all tested light levels. Total biomass increased significantly with increasing light. Biomass allocation shifted significantly to root production between 3 and 6 weeks in the 10 and 24% levels. Survival decreased with increasing planting depth, and biomass of survivors reduced significantly between 0.5, 1.0, and 1.5 m depths. Nelumbo lutea and Myriophyllum spicatum populations were monitored for one season in a 0.7 ha pond to track changes in species dominance. Myriophyllum spicatum dominated early, and N. lutea dominated from July through October, suppressing M. spicatum at all depths. Competitive interactions between N. lutea and M. spicatum were investigated for two seasons in a container experiment situated within a pond. Where established, N. lutea dominated in the presence of M. spicatum. However, N. lutea could not be established in depths greater than 1 meter.
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Documents and fact sheets on farm safety.
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Aquaplant was developed and designed to help pond owners and their advisors with identification and management of aquatic vegetation.
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Limnology is a discipline that concerns the study of in-land waters (both saline and fresh), specifically lakes, ponds and rivers (both natural and manmade), including their biological, physical, chemical, and hydrological aspects!
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IAHR, the International Association of Hydraulic Engineering and Research, particularly promotes the advancement and exchange of knowledge through working groups, specialty symposia, congresses, and publications on water resources, river and coastal hydraulics, risk analysis, energy, environment, disaster prevention, industrial processes.
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The International Association for Great Lakes Research (IAGLR) is a scientific organization made up of researchers studying the Laurentian Great Lakes, other large lakes of the world, and their watersheds, as well as those with an interest in such research. IAGLR members encompass all scientific disciplines with a common interest in the management of large lake ecosystems on many levels.
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The Freshwater Biological Association (FBA) is a thriving membership association, independent scientific organisation and a registered charity. Founded in 1929, we promote freshwater science through innovative research, maintained specialist scientific facilities, a programme of scientific meetings, production of publications, and by providing sound independent scientific opinion.
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