نتایج جستجو برای: pond
تعداد نتایج: 6961 فیلتر نتایج به سال:
Complex microbial communities inhabit vertebrate digestive systems but thorough understanding of the ecological dynamics and functions of host-associated microbiota within natural habitats is limited. We investigate the role of environmental conditions in shaping gut and skin microbiota under natural conditions by performing a field survey and reciprocal transfer experiments with salamander lar...
The bacterial infection is an important economic and limiting factor in intensive fish production. The present study focuses on investigation of the bacterial population associated with farmed common carp fingerlings, its environment and limnological quality of pond, during winter and summer season. It was found that the bacterial count in the pond sediment (6.40 cfu x 10(4)) was about 10 times...
7 Pond, C. M. (1996) Proc. Nutr. SOC. 55, 111-126 8 Pond, C. M. (1987) in Techniques in the Behavioral and Neural Sciences: vol. 1 Feeding and Drinking (Toates, F. M. and Rowland, N. E., eds.), pp. 499-529, Elsevier Science, Amsterdam 9 Pond, C. M. (1994) in Obesity in Europe '93, Proceedings of the 5th European Congress of Obesity (Ditschuneit, H., Cries, F. A., Hauner, H., Schusdziarra, V. an...
The design of stabilization ponds for the treatment of wastewater is traditionally based on empirical guidelines. Even more the hydraulic design is normally over simplify. However, the performance of a pond will highly depend on the proper hydraulic design. This paper present an approach that combines the traditional empirical design with the use of modelling tools to predict the performance of...
The copepod Diaptomus sanguineus begins diapause in permanent ponds in late March as an adaptation to avoid summer fish predation. During a study of copepod populations in two Rhode Island ponds, a severe drought dried one pond killing all fish. The second (control) pond did not dry, and no fish were killed. Before the drought copepods in the two ponds entered diapause on nearly the same date. ...
This study used particle size analysis to investigate the initial accumulation and trap efficiency of radiocesium ((137)Cs) in four irrigation ponds, ~4-5 months after the Fukushima Dai-ichi nuclear power plant (DNPP) accident. Trap efficiency, represented by the inventory of (137)Cs in pond sediment to the inventory of radiocesium in soil surrounding the pond (i.e., total (137)Cs inventory), w...
Two clinical isolates and an environmental isolate of Edwardsiella tarda biogroup 1 (ETB1), recovered from liver pus, the stool specimen and from the pond water of the village of the patient, diagnosed to have liver abscess, were found to be identical by protein fingerprinting and ribotyping. It can be construed that the pond water served as the source of infection. The epidemiological triad of...
The study evaluated the status of fish pond projects initiated in the 1980s on resource-poor farms in Guatemala and Panama. In both places, the host country and the United States Agency for International Development (USAID) provided financial assistance and Auburn University provided technical support to the respective governments. The study examined the impact of aquaculture technology, extens...
The impact of mosquito control on nontarget organisms using Abate-4-E was investigated in terms of immediate mortality and residual activity. Three 10 year old, man-made ponds having similar community structures and population densities were studied. The residual activity, determined by bioassays with 4th instar Aedes communis, was significantly longer in a relatively cooler pond. Populations o...
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