STREAM ECOLOGY & SELF PURIFICATION: An Introduction - Chapter 10 pptx

... inorganic chemicals (4) Water-soluble nitrate and phosphate salts-inorganic plant nutrients (5) Insoluble and water-soluble oil, gasoline, plastics, pesticides, cleaning sol- vents, and many ... Publishing Company, Inc. Stream Pollutants 137 Man's actions are determined by his expediency. If it makes man's life more con- venient, less expensive or pleasanter, the strea...

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... flow, and the speed of flow changes to form a river. As it changes speed and slows, the river bot- tom changes from rock and stone to silt and clay. Plants begin to grow, stems thicken, and ... shape channels, or move signifi- cant quantities of sediment in all but sand-bed streams, which can experience change more rapidly. During extreme events, the greatest scour occurs, and the ......

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... Sediments Animal 'N' Excretion I Ammonia ++ Organic Nitrogen as Amino Acids Figure 3.3 Nitrogen cycle. the topic of stream ecology and self- purification, it is important to ... compounds. However, an important distinction between cycling of sulfur and cycling of ni- trogen and carbon is that sulfur is "already fixed." That is, plenty of sulfate an-...

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... Community ecology- the study of the structure and dynamics of animal and plant commu- nities. Population ecology provides modeling tools that can be used for predicting corn- munity structure and ... abandonment, the climax oak-hickory forest was restored. 5.6 POPULATION RESPONSE TO STRESS AND STREAM ECOLOGY It is important to understand that the dynamic balance of the stre...

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... the major determinant of stream water chem- istry locally as well. These "determinants" of stream water chemistry are actu- ally the stream& apos;s "DNA." More specifically, ... and very basic form. The intent has been to lay a foundation upon which the focus of this text, stream ecology and self- purification, can be built. Beginning with an introductio...

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... suspended or- ganisms, the plankton, such as phytoplankton (plants) and zooplankton (ani- mals), and some consumers such as insects and fish. Plankton are small organ- isms that can feed and reproduce ... species present in any one part of the stream. Such balance ensures that there is never an overabundance of one species. Nature structures the stream environment so that plant and...

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... the stream may become a lifeless body. The self- purification process discussed here relates to the purification of or- ganic matter only. In this chapter, organic stream pollution and the self- purifi- ... Company, Inc. 172 SELF- PURIFICATION OF STREAMS the stream reduces DO levels significantly and can have dramatic impact upon aquatic organisms. In order to reduce the BOD o...

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... the left and right stream banks separately. Define the "left" and "right" banks by standing at the downstream end of the study stretch and look up- stream. Each bank is evaluated ... the larger nannoplankton. Most planktonic organisms fall into the rnicroplankton or net plankton cate- gory. The sizes range from the largest nannoplankton to about 2 mm (thou- sandt...

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... EPA 841-D-9 7-0 02,1997. Barlocher, R. and Kendrick, L., "Leaf conditioning by microorganisms." Oecologia 20: 35 9-3 62, 1975. Banyman, A. A., Population Systems: A General Introduction. ... stream& apos;s flora and fauna in a balanced state. Nature balances stream life by maintaining the number and the types of species present in any one part of the stream. Na...

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... FUNCTIONS Z 1 Z 2 Z 3 Z 4 Z 5 Z 6 Z 7 Z 8 Z 9 Z 10 Z 11 Z 12 Profit 1267781197665200 100 000000000 -5 0 100 000000000 -5 0 1 1100 0000000 -5 0 00000000000 0-1 00 111111249797300 233420000000 0 100 000000000 -5 0 2100 00000000 0 3347111714111 1101 6251300 00000000000 0-1 00 12211 3100 000 -5 0 00000000000 0-1 00 2 3100 0000000 ... 0 3347111714111 1101 6251300 00000000...

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