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Bacterial coaggregation in aquatic systems [PDF]
The establishment of a sessile community is believed to occur in a sequence of steps where genetically distinct bacteria can become attached to partner cells via specific molecules, in a process known as coaggregation. The presence of bacteria with the ability to autoaggregate and coaggregate has been described for diverse aquatic systems, particularly
Ana C. Afonso +5 more
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Management of ammonia, the primary waste product of fish, is critical to fish health, especially in intensive systems. At low concentrations, ammonia causes stress and damages gills and other tissues. Fish exposed to low levels of ammonia over time are more susceptible to bacterial infections, have poor growth, and do not tolerate routine handling well.
Ruth Francis-Floyd +3 more
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It is becoming increasingly clear that the threat to the use of natural landscapes and persistent droughts are affecting the water quality of rural communities.
Mariela A. Yevenes +2 more
doaj +1 more source
Chaos to Order: Role of Toxin Producing Phytoplankton in Aquatic Systems
Toxin producing phytoplankton (TPP) plays an important role in aquatic systems. To observe the role of TPP, we consider a three species food chain model consisting of TPP-zooplankton-fish population. The similar type of model considered by Upadhyay et al.
R. K. Upadhyay, J. Chattopadhyay
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Environmental fate of the anti-parasitic ivermectin in an aquatic micro-ecological system after a single oral administration [PDF]
Background Ivermectin (IVM) has been widely used in the aquaculture industry since its efficacy against parasites. However, the degradation of IVM was very slow in aquatic environments and the environmental fate of IVM in a complete aquatic system was ...
Di Wang +5 more
doaj +2 more sources
Spatial–Temporal Analysis of the Heat and Electricity Demand of the Swiss Building Stock
In 2015, space heating and domestic hot water production accounted for around 40% of the Swiss final energy consumption. Reaching the goals of the 2050 energy strategy will require significantly reducing this share despite the growing building stock ...
Stefan Schneider +5 more
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Saline lakes worldwide are undergoing drying, and as lake levels fall and areas contract, salinities increase. There is a critical need for data on salinity impacts to guide conservation for recovery of the aquatic productivity that supports migratory ...
David B. Herbst, David B. Herbst
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De par ses activités diversifiées, l'homme a modifié en permanence la faune mammalienne de France métropolitaine. Responsable de certaines extinctions, il est également à l'origine de réintroductions d'espèces autochtones et d'introductions d'espèces ...
MAURIN H., GAVAZZI E.
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Revised! FA-16, a 5-page illustrated fact sheet by Ruth Francis-Floyd, Craig Watson, Denise Petty, and Deborah B. Pouder, informs aquarists, aquaculturists, and hobbyists about this important water quality parameter, its effect on fish health, the nitrogen cycle that eliminates ammonia from water, how to test for ammonia, and how to manage an ammonia ...
Ruth Francis-Floyd +3 more
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Extreme Precipitation and Flooding Contribute to Sudden Vegetation Dieback in a Coastal Salt Marsh
Climate extremes are becoming more frequent with global climate change and have the potential to cause major ecological regime shifts. Along the northern Gulf of Mexico, a coastal wetland in Texas suffered sudden vegetation dieback following an extreme ...
Camille LaFosse Stagg +7 more
doaj +1 more source

