In both habitats, new sensing, tracing and mapping technologies have revealed how landscape or seascape features (e.g., watershed divides, ocean fronts or circulation cells) channel, contain or concentrate organisms, energy and materials.
Bioconcentration factor (BCF) describes the behaviour of a chemical in terms of its likelihood of concentrating in organisms in the environment.
Bioconcentration factor (BCF) is a fundamental property, describing the likelihood of a chemical concentrating in organisms, when the compound is present in the environment.
The tube was centrifuged for 10 minutes at 10000 rpm in a microcentrifuge to concentrate the organisms and the pellet was resuspended in 50 μl of water.
For microscopic analysis, the controls and treated parasites were centrifuged for 10 min at 2,000 rpm to concentrate the organisms after 4 h of incubation, and the preparation was observed in light microscope (magnified ×1,000) by trypan blue dye exclusion.
When the fish of Clear Lake were also analyzed, the picture began to take form: The poison had been picked up by the smallest organisms, concentrated, and passed on to the larger ones, which concentrated it further.
He said two days of rain after the Aug. 7 spraying might have produced an initial pulse of storm runoff that washed the pesticide into the water, where it would be quickly concentrated in living organisms.
When the fish of Clear Lake were also analyzed, the picture began to take form: The poison had been picked up by the smallest organisms, concentrated, and passed on to the larger ones, which concentrated it further….
While reconstructing this network, we concentrated on three organisms where the amount of available data is sufficient to set-up a stoichiometric model of the core metabolism.
210Po was found to be highly concentrated in several marine organisms with the highest 210Po concentration found in Marica marmorata (193.5 215.6 Bq kg− 1 dry weight).
