bioaccumulation


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Related to bioaccumulation: Bioaccumulation Factor

bioaccumulation

(bī′ō-ə-kyo͞om′yə-lā′shən)
n.
The accumulation of a substance, such as a toxic chemical, in various tissues of a living organism: the bioaccumulation of mercury in fish.

bi′o·ac·cu′mu·la′tive adj.

bioaccumulation

The accumulation of chemicals or nutrients in a living organism against an inorganic background (e.g., the external environment), which is due to a high partition coefficient and resistance to degradation by the bioaccumulating organism.

bioaccumulation

the process of concentration of chemical contaminents in animal tissues as they move higher up the food chain e.g. pesticides and heavy metals stored in fatty tissues are passed on from one predator to a higher predator, the resulting concentrations being increasingly harmful and most so to the top predators.

bioaccumulation

process producing an increase in the concentration of chemicals (usually toxins) in the tissues of organisms with each increase in the trophic level in the food chain. Examples include chlorinated hydrocarbons which reach their greatest concentrations in predatory birds and pelicans, and ciguatera in which the toxins are concentrated in large predatory fish such as gropers, barracudas and mackerel.
References in periodicals archive ?
Few studies have been conducted to assess bioaccumulation of metals beyond the threshold limits (Javed and Usmani, 2013).
Thus, the organ level order of metal bioaccumulation in the two fish species was in the order of Gills>Liver>Muscle, which is the same as the report of Osakwe et al.
Chromium (VI) bioaccumulation capacities of adapted mixed cultures isolated from industrial saline wastewaters.
Biotransfer, bioaccumulation and effects of herbivore dietary Co, Cu, Ni, and Zn on growth and development of the insect predator Podisus maculiventris (Say).
The result is expected as the liver has higher tendency for heavy metal bioaccumulation due to the presence of metallothioneins binding proteins and free protein-thiol group content that forms strong fixation with heavy metals, [7].
Several multimedia bioaccumulation models have been developed to link chemical emissions and environmental distribution with accumulation in human food chains.
Thus, this study revealed that the bioaccumulation of As(III) was increased with respect to period of consumption of As(III) contaminated drinking water by poultry birds.
He details the toxicity testing of water; the determination of metals, organic compounds, organometallic compounds in fish, crustacea, and other non-fish creatures; the toxic effects of these compounds; toxicity of pollutants in phytoplankton and algae; and bioaccumulation.
A scientist with Environment and Climate Change Canada, Letcher's work has seen him clambering over rocks to collect herring gull eggs, which are then analyzed to assess the persistence, bioaccumulation and degradation of a wide variety of compounds.
Objective: For this reason, this work presents the study of the bioaccumulation process in the active ingredient of Buprofezin in a crop of cape gooseberries, with the aim of observe the remnants of this compound in the Physalis peruviana and its fruit after two and a half months of being attacked by the Trialeurodes Vaporariorum.
was tested with different concentration of heavy metals under varying exposure time to examine acute toxicity effect on their survival rate and bioaccumulation in fish tissues.