Results 11 to 20 of about 137,242 (267)

Bacterial coaggregation in aquatic systems [PDF]

open access: yesWater Research, 2021
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
openaire   +3 more sources

Ammonia in Aquatic Systems

open access: yesEDIS, 2022
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
openaire   +1 more source

Citizen Science as a Co-Creative Measure to Water Quality: Chemical Data and Local Participation in a Rural Territory

open access: yesFrontiers in Environmental Science, 2022
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

open access: yesNonlinear Analysis, 2005
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
doaj   +1 more source

Environmental fate of the anti-parasitic ivermectin in an aquatic micro-ecological system after a single oral administration [PDF]

open access: yesPeerJ, 2019
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

open access: yesFrontiers in Built Environment, 2017
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
doaj   +1 more source

Developmental and reproductive costs of osmoregulation to an aquatic insect that is a key food resource to shorebirds at salt lakes threatened by rising salinity and desiccation

open access: yesFrontiers in Ecology and Evolution, 2023
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
doaj   +1 more source

L'homme et les mammifères de France métropolitaine : évolution historique et introductions d'espèces dans les milieux humides et aquatiques

open access: yesKnowledge and Management of Aquatic Ecosystems, 1997
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.
doaj   +1 more source

Ammonia in Aquatic Systems

open access: yesEDIS, 2009
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
openaire   +8 more sources

Extreme Precipitation and Flooding Contribute to Sudden Vegetation Dieback in a Coastal Salt Marsh

open access: yesPlants, 2021
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

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