Uptake and depuration kinetics of dissolved silver were determined in the brown alga Lobophora variegata, using radiotracer techniques. Results indicate that this widely distributed alga could be a useful bioindicator species for surveying silver contamination in tropical environments. Indeed, results showed that the alga readily concentrates silver (algal concentration of silver was 7,000 time...

A large outbreak of viral gastroenteritis occurred in which oysters eaten raw were the vehicle of infection. Laboratory findings indicated that a small round structured virus was the infecting agent. Adults of all ages were equally susceptible to infection with the virus. Investigation cast doubt on the efficacy of depuration as a method for rendering oysters free of virus, and hence the public...

The thick-shelled river mussel (Unio crassus) is listed as 'Endangered' on the IUCN Red List of Threatened Species and it important to culture them for conservation natural stocks. Integrating mussels into freshwater aquaculture system could be an efficient method, because their filtering ability. In this study, was aimed determine bacteria filtering ability if water quality got better in ter...

2,4-dichlorophenoxyacetic acid and monosodium methanearsonate are often sold in commercial mixtures. Bioconcentration studies have been performed for each of these herbicides individually, but little information exists concerning long-term exposure to a mixture of these herbicides. The following study examined the uptake of arsenic in crawfish after long-term exposure to this mixture, and the h...

Mercury (Hg) depuration into growing feathers is a well-studied phenomenon in waterbirds. Although the kinetics of Hg excretion in relation to molt and diet has been studied extensively, the relationship between the individual nutritional condition of nestlings and dietary Hg accumulation has not been investigated. In the present study, a body-condition index (BCI) and nutritional condition ind...

Introduction: Intrauterine devices (IUDs) are widely used contraceptive methods that have a possible association with lower genital tract infections. Objective: To assess whether IUD is associated with genital tract infection and which pathogens cause it. Methods: Systematic review of studies in PubMed database, Highwire-Stanford, and Google Scholar using the following keywords: “cytology IUD,”...

The introduction of nonnative oysters (i.e., Crassostrea ariakensis) into the Chesapeake Bay has been proposed as necessary for the restoration of the oyster industry; however, nothing is known about the public health risks related to contamination of these oysters with human pathogens. Commercial market-size C. ariakensis triploids were maintained in large marine tanks with water of low (8-ppt...

corophium volutator (pallas) has been recommended by the paris commission as one of the standard species for testing chemical used in offshore oil and gas exploration/production. in the present study, gut contents of corophium volutator have been analysed by electron probe microanalysis (epma) for baso4 and other heavy metal impurities after exposure tto spiked sediments following a standard as...