biomagnify


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biomagnify

(bī-ō-mag'ni-fī),
Propensity for accumulated environmental chemicals to increase in relative concentrations at each level in the food chain (that is, eagles are likely to ingest toxins consumed by fish, their primary foodstuff).
Farlex Partner Medical Dictionary © Farlex 2012
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Remote camera observations revealed that the nestlings died shortly after consuming sand lance (Ammodytes hexapterus), a fish species known to biomagnify saxitoxin.
[46] have shown that mayflies Centroptilum triangulifer (Ephemeroptera) feeding on periphyton organisms are able to biomagnify Se.
Large number of experiments proved that PBDEs including BDE-209 persist in the environment for long time (de Wit 2002), and bioaccumulate and biomagnify as they move through the food chain (Law et al.
Numerous of these chemical contaminants are persistent polyhalogenated aromatic hydrocarbons known to bioaccumulate and biomagnify as they move through the aquatic food web, affecting species associated with aquatic systems, including humans (GIESY et al., 1994; PEREIRA, 2004).
The succeeding lower bio concentration factor, in higher trophic animals, indicates that thorium will not biomagnify in the aquatic environment.
Although it can persist in sediments and accumulate in sediment-dwelling organisms, it does not biomagnify through the food chain.
The only known metals to biomagnify in aquatic organism are methylmercury and possibly selenium (PARAMETRIX, 1995 apud ICMM, 2007).
Therefore, copper does not bioaccumulate or biomagnify in aquatic or terrestrial food chains." He is quick to point out, though, that point source emissions should be avoided and thus containment and handling of waste from vessel dry-dockings or pleasure craft maintenance is important.
These compounds have great affinity for fatty molecules what makes it easier to be accumulated in the fat tissue of organisms; as a consequence they can be biomagnify along the food chain, where its degradation products are more toxic or permanent than the original compound (Henao et al.
Many contaminants biomagnify up food webs to reach significant concentrations in top predator species.
Any form of Hg can be converted to methylmercury by natural means and then bioaccumulate and biomagnify as it progresses through aquatic food webs.