The partitioning, bioavailability, and toxicity of cypermethrin in water-sediment systems was investigated. Cypermethrin adsorbed extensively and rapidly, with an overall mean organic carbon (OC) adsorption partition coefficient (Koc) of 350,000, and approximately 99% adsorption occurred within 24 h. Bioavailability was measured via body burdens of Daphnia magna and Chironomus tentans. Mean bio...

We tested the hypothesis that ultrasound in controlling cyanobacteria and algal blooms is “environmental friendly” by exposing the non-target zooplankton grazer Daphnia magna to ultrasound produced by commercially available ultrasound transducers. In populations of 15 Daphnia (~2 mm body size) exposed in 800 mL of water to ultrasound supplied at 20 kHz, 28 kHz, 36 kHz or 44 kHz, all animals wer...

As the number of legal and illegal gold mining sites increases in Andes–Amazonia region, integrative methods to evaluate effects pollution on freshwater ecosystems are paramount importance. Here, we sampled water sediments 11 potentially affected by activities Napo province (Ecuador). The environmental impacts were evaluated using following lines evidence (LOEs): physicochemical parameters, met...

Groundwater is an indispensable resource for humankind and sustainable biomes functioning. Anthropogenic disturbance threatens groundwater ecosystems globally, but to which extent organisms respond stressors remains poorly understood. animals are rare, with small populations, difficult find breed in the lab, poses a main challenge assessment of their responses pollutants. Despite difficulties, ...

OBJECTIVE Thoracic and thoracoabdominal aortic repair are still complicated by spinal cord ischemia and paraplegia. The aim of the present article is to present the results of an anatomical study conducted by means of both postmortem injection of the vertebral artery and perfusion of the abdominal aorta. METHODS The spinal cord blood supply was investigated in 51 Caucasian cadavers: in 40 cas...

Ketersediaan air limbah rendaman kedelai yang melimpah dapat dijadikan sebagai pakan alternatif bagi D. magna. Peningkatan nutrisi dilakukan melalui penambahan probiotik EM4. Tujuan penelitian ini adalah untuk mengetahui pengaruh perbedaan konsentrasi pemberian terfermentasi dan periode waktu terhadap pertumbuhan Penelitian dilaksanakan secara eksperimental di Laboratorium Akuakultur, Fakultas ...

Abstract Background Dengue and chikungunya are two mosquito-borne viruses transmitted by the mosquito, Aedes aegypti, responsible for great public health concerns in India. The present study tested effect of Daphnia magna, a freshwater cladoceran, on growth pupation Ae. aegypti larvae. Results third instar larvae adult, D. magna , were introduced ratios 1:1, 1:2 1:3 into beakers placed an illum...

Zooplankton body size shows a strong association with temperature, competition, and predation. Global warming affects all three drivers of is thus expected to lead substantial changes in zooplankton community composition distributions. To disentangle the isolated joint effect fish predation on species biomass zooplankton, we monitored population biomasses Daphniidae that differ (Daphnia magna, ...

1 Interuniversity Center of Phlebolymphology (CIFL), International Research and Educational Program in Clinical and Experimental Biotechnology, University Magna Graecia of Catanzaro, Viale Europa, 88100 Catanzaro, Italy 2Department of Medical and Surgical Sciences, University Magna Graecia of Catanzaro, Viale Europa, 88100 Catanzaro, Italy 3CURS, Laboratoire INSERM U1088, Université de Picardie...