Fish of Two Dike Pools in the Lower Mississippi River PDF Download
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Author: Robert W. Nailon
Publisher:
ISBN:
Category : Aquatic ecology
Languages : en
Pages : 82
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Book Description
Dike structures, designed and installed by the U.S. Army Corps of Engineers in the Lower Mississippi River, can modify river geomorphology, discharge rates, and sediment movements within the river. These changes in the river's characteristics, plus the presence of the dikes themselves, result in shifts in types, sizes, and variety of aquatic habitats on a yearly basis. At low water river stages, isolated dike pools bordered by bars are formed, creating distinct aquatic habitats which are quite variable in size and depth. Fish and water samples collected in two such dike pools as well as from the adjacent river border wee used to determine the importance of dike pool habitats to fish communities during a low water period of 1980. Hydrological results indicate that overall differences in water quality were easily distinguishable once stratification began. Surface readings of dissolved oxygen, temperature, and pH were generally higher in the pool habitats than in the main channel. As depth increased, the opposite was true for dissolved oxygen, temperature, and pH. Conductivity at the bottom in the pools during isolation was much higher than in the main channel.
Author: Robert W. Nailon
Publisher:
ISBN:
Category : Aquatic ecology
Languages : en
Pages : 82
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Book Description
Dike structures, designed and installed by the U.S. Army Corps of Engineers in the Lower Mississippi River, can modify river geomorphology, discharge rates, and sediment movements within the river. These changes in the river's characteristics, plus the presence of the dikes themselves, result in shifts in types, sizes, and variety of aquatic habitats on a yearly basis. At low water river stages, isolated dike pools bordered by bars are formed, creating distinct aquatic habitats which are quite variable in size and depth. Fish and water samples collected in two such dike pools as well as from the adjacent river border wee used to determine the importance of dike pool habitats to fish communities during a low water period of 1980. Hydrological results indicate that overall differences in water quality were easily distinguishable once stratification began. Surface readings of dissolved oxygen, temperature, and pH were generally higher in the pool habitats than in the main channel. As depth increased, the opposite was true for dissolved oxygen, temperature, and pH. Conductivity at the bottom in the pools during isolation was much higher than in the main channel.
Author: Wade H. Shafer
Publisher: Springer Science & Business Media
ISBN: 1468449192
Category : Science
Languages : en
Pages : 314
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Book Description
Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) * at Purdue University in 1 957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all con cerned if the printing and distribution of the volumes were handled by an interna tional publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Cor poration of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 28 (thesis year 1 983) a total of 10,661 theses titles from 26 Canadian and 197 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this important annual reference work. While Volume 28 reports theses submitted in-1983, on occasion, certain univer sities do report theses submitted in previous years but not reported at the time.
Author: Mark B. Sandheinrich
Publisher:
ISBN:
Category : Dikes (Engineering)
Languages : en
Pages : 60
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Book Description
A review of pertinent research, suggests that dikes and revetments have short-term and long-term effects on major riverine ecosystems. Short-term effects may be beneficial and include increases in aquatic habitat diversity physical stability which, in turn, results in high densities and diversities of fish and macroinvertebrates within the main stem of the river. Dike fields are intermediate physically, chemically, and biologically to the main channel and backwaters of rivers. Dike fields often support the most diverse fish and macroinvertebrate community of any habitat within the river. But community composition is less stable than backwaters and is dependent upon river stage and water velocity. Moderate and slow-water areas within dike fields provide important spawning and nursery areas for many lotic species of fish within the modified river. Revetments of broken rock stabilize banks and provide additional hard substrate for colonization by dense populations of invertebrates. Interstitial spaces between rocks may provide areas of moderate flow for juvenile and forage fish. Long-term effects of river training structures may be detrimental to the biotic integrity of the river.
Author: Mississippi Academy of Sciences
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 436
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Book Description
Author: David C. Beckett
Publisher:
ISBN:
Category : Aquatic invertebrates
Languages : en
Pages : 146
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Author:
Publisher:
ISBN:
Category : Aplodinotus
Languages : en
Pages : 50
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Book Description
Author: Dennis D. Anderson
Publisher:
ISBN:
Category : Mississippi River
Languages : en
Pages : 384
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Author:
Publisher:
ISBN:
Category : Environmental engineering
Languages : en
Pages : 8
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Author: Carey W. Burch
Publisher:
ISBN:
Category : Aquatic biology
Languages : en
Pages : 246
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Book Description
Author:
Publisher:
ISBN:
Category : Hydrology
Languages : en
Pages : 956
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Book Description
