By Richard T. Di Giulio, David E. Hinton

ISBN-10: 041524868X

ISBN-13: 9780415248686

Received this e-book for my brother whos doing his PhD in fish toxicology, He turns out pleased with it.

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3). Other chemicals might have the appropriate size and electrochemical properties to be taken up via specific biochemical exchange sites on the epithelial tissue surface (arrow 2 and rectangular S). A significant site for ion loss in freshwater fish can be via junctions between epithelial cells. 3 but might also be important for the uptake of chemicals that are not effectively absorbed via other routes. The bound chemical might also be directly absorbed via one or more of the same routes as the free chemical, although probably at a different rate (arrow 3); however, the bound chemical can also affect uptake in other ways.

This is in contrast to particulate organic carbon (POC), which refers to the carbon present in the complex mixture of particulate material suspended in water, including resuspended sediment and detritis, soil particles, leaf litter, bacteria, phytoplankton, and zooplankton. 45 µm). ‡ The acid dissociation constant (Ka) is the equilibrium constant for the dissociation of an acid into hydrogen ion and its conjugate base. pKa = –log10(Ka) and is equal to the pH at which half of the chemical is ionized.

The rate of digestion and efficiency of nutrient uptake depend in turn on factors such as temperature, feeding frequency, meal size, and food digestibility. The processes that control chemical flux between gut contents and the general circulation are not as well understood as those occurring at the gills. In general, compounds for which dietary uptake is an important route of uptake tend to remain associated with components of the meal until these components are taken up by the fish. Mixed micelles resulting from the digestion of dietary lipid sequester lipophilic organic compounds.

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The Toxicology of Fishes by Richard T. Di Giulio, David E. Hinton

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