نتایج جستجو برای: depuration
تعداد نتایج: 456 فیلتر نتایج به سال:
Crassostrea ariakensis oysters are under review for introduction into the Chesapeake Bay. However, the human health implications of the introduction have not been fully addressed. This study evaluated rates of bioaccumulation, retention, and depuration of viruses by Crassostrea virginica and C. ariakensis when the two oyster species were maintained in separate tanks containing synthetic seawate...
Manila clam stock from Arcachon Bay, France, is declining, as is commercial harvest. To understand the role of environmental biotic interactions in this decrease, effects of a toxic dinoflagellate, Alexandrium ostenfeldii, which blooms regularly in Arcachon bay, and the interaction with perkinsosis on clam physiology were investigated. Manila clams from Arcachon Bay, with variable natural level...
Although methylated mercury (MeHg) is known to have neurological, immunological, reproductive, and endocrine effects on vertebrates at low environmental exposure levels, effects on survival of exposed birds have not been demonstrated in the wild. Here, we report on survival of the same group of White Ibises (Eudocimus albus) during exposure to 4 levels of dietary MeHg in captivity and later as ...
The redclaw crayfish, Cherax quadricarinatus , was introduced to Martinique Island for aquaculture purposes at the beginning of 21st century, in an attempt revitalize freshwater crustacean sector. Mainly due its high economical value, it intentionally released wild and caught sold by fishermen. Martinican rivers are polluted chlordecone, considered as one worst Persistant Organic Pollutants (PO...
Rotavirus virus-like particles (VLPs) and MS2 bacteriophages were bioaccumulated in bivalve mollusks to evaluate viral persistence in shellfish during depuration and relaying under natural conditions. Using this nonpathogenic surrogate virus, we were able to demonstrate that about 1 log10 of VLPs was depurated after 1 week in warm seawater (22 degrees C). Phage MS2 was depurated more rapidly (a...
This study compared the uptake and depuration of four commonly used pharmaceuticals (carbamazepine, diclofenac, fluoxetine and orlistat) in two earthworm species (Lumbricus terrestris and Eisenia fetida). L. terrestris are a larger species and often found in deep burrows whereas E. fetida prefer to reside near the soil surface. Species burrowing habits and sizes may alter uptake by earthworms. ...
This research aims to define a chemical, mineralogical and strontium isotope database for clayey materials collected along the Nile River banks (White Nile, Blue Atbara Main Rivers) in Sudan, be use prehistoric historic pottery provenance studies. The approach here adopted consists using tout court, without any pre-treatment, such as depuration from sand- silt-sized fractions, order maintain un...
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