نتایج جستجو برای: hg ecotoxicology
تعداد نتایج: 31722 فیلتر نتایج به سال:
In ecotoxicology, the state of the art for effect assessment of chemical mixtures is through multiple dose-response analysis of single compounds and their combinations. Investigating whether such data deviate from the reference models of concentration addition and/or independent action to identify overall synergism or antagonism is becoming routine. However, recent data show that more complex d...
Mercury (Hg) biomonitoring of pinnipeds increasingly utilizes nonlethally collected tissues such as hair and blood. The relationship between total Hg concentrations ([THg]) in these tissues is not well understood for marine mammals, but it can be important for interpretation of tissue concentrations with respect to ecotoxicology and biomonitoring. We examined [THg] in blood and hair in multiple...
Mercury is a hazardous pollutant in the Bohai marine environments due to its high toxicity to the marine organisms and subsequent ecological risk. Manila clam Ruditapes philippinarum is one of important sentinel organisms in 'Mussel Watch Program' launched in China and therefore used as a bioindicator in marine and coastal ecotoxicology. There are dominantly distributed three pedigrees of clam ...
Abstract. Aquatic and terrestrial mesocosms have been used successfully to examine ecological and ecotoxicological questions with amphibians. Mesocosms represent a bridge between the laboratory and the natural world, and allow for experimental research on factors that influence amphibian populations and communities. In this manuscript, we review the current literature utilizing mesocosms for ec...
Volume seven of the Australasian Journal of Ecotoxicology is a special volume devoted to the new Australian and New Zealand Guidelines for Fresh and Marine Water Quality (ANZECC and ARMCANZ, 2000) (hereafter, referred to as the WQGs) and in particular, to the important advances in the water quality guidelines for protection of aquatic ecosystems. The devotion of an entire volume is appropriate ...
Electrophoretic analyses of population genetic structure, both in the laboratory and in the field, have documented significant shifts in allozyme genotype frequencies in a variety of aquatic taxa as a result of environmental impacts. Studies are documented which indicate that contaminants may select for individuals with tolerant allozyme genotypes, causing the potential loss of individuals with...
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