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ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (818 download)
Download or read book An Ecological Evaluation of Five Secondary Channel Habitats in the Lower Mississippi River written by and published by . This book was released on 1987 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (183 download)
Download or read book An Ecological Evaluation of Five Secondary Channel Habitats in the Lower Mississippi River written by and published by . This book was released on 1987 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : John A. Baker
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ISBN 13 :
Total Pages : 147 pages
Book Rating : 4.:/5 (227 download)
Download or read book Lower Mississippi River Environmental Program. Report 7. An Ecological Evaluation of Five Secondary Channel Habitats in the Lower Mississippi River written by John A. Baker and published by . This book was released on 1987 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chemical, physical, and biological attributes of the aquatic habitat of five Lower Mississippi River secondary channels were surveyed during summer (July) 1984; two of the channels were resurveyed during fall (October). Dikes at least partially restricted flow through two of the channels (Lakeport Towhead and Cottonwood Bar, river miles 470 and 528, respectively); flow through the remaining three (Wolf Island, river mile 935; Island 8, river mile 915; Profit Island, river mile 250) was not restricted. The channel at which flow was most restricted, Lakeport Towhead, showed both physical and chemical differences from the others. Electroshocking catches of fish were highest at Profit Island due to unusually large collections of catfishes. The macroinvertebrate assemblages found within the channels were similar overall, and they appeared to reflect the current speed and substrate conditions. The dike macrofauna was similar to that noted in earlier studies on the Lower Mississippi River. Dikes that block or greatly restrict flow through secondary channels produce habitats in which the macroinvertebrate and fish assemblages are quite different from undiked channels, at least when river stages are near or lower than the controlling elevation of the dikes. (fr).
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ISBN 13 :
Total Pages : 154 pages
Book Rating : 4.:/5 (359 download)
Download or read book An Ecological Evaluation of Five Secondary Channel Habitats in the Lower Mississippi River written by and published by . This book was released on 1987 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecohydrology & Hydrobiology written by and published by . This book was released on 2003 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: The international journal Ecohydrology & Hydrobiology (E&H) has been created to promote the concept of Ecohydrology, which is defined as the study of the functional interrelations between hydrology and biota at the catchment scale. Ecohydrology extends from the molecular level to catchment-scale processes and is based on three principles: • framework (hydrological principle) - quantification and integration of hydrological and ecological processes at a basin scale; • target (ecological principle) - necessity of enhancing ecosystem absorbing capacity and ecosystem services; and • management tool (ecological engineering) – the use of ecosystem properties for regulation the interplay between hydrology and biota. The journal encourages the submission of manuscripts which adopt an integrative approach to aquatic sciences, explaining ecological and hydrological processes at a river-basin scale or propose practical applications of this knowledge. It will also consider papers in other hydrobiological fields. Especially welcome are papers on regulatory mechanism within biocenosis and the resistance and resilience of freshwater and costal zones ecosystems. There is no page charge for published papers. All submitted papers, written exclusively in English, should be original works, unpublished and not under consideration for publication elsewhere. All papers are peer-reviewed. The following types of papers are considered for publication in E&H: • original research papers • invited or submitted review papers, • short communications
Author : Ian G. Cowx
Publisher : John Wiley & Sons
ISBN 13 : 0470695277
Total Pages : 458 pages
Book Rating : 4.4/5 (76 download)
Download or read book Management and Ecology of River Fisheries written by Ian G. Cowx and published by John Wiley & Sons. This book was released on 2008-04-30 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this edited work, international experts in fisheries management and ecology review and appraise the status of river fisheries, assessment methodology, constraints on development, issues and options regarding management and associated problems in both temperate and tropical countries. Recommendations are made to improve management and an attempt is made to provide guidelines for formulating policy, for planning methodology and for evaluating future activities. Assessment of fish community structure and dynamics. Factors constraining stock recruitment. Fish habitat requirements. Instream flow needs. Impact of water resource schemes. Rehabilitation of river fisheries. Enhancement of fish stocks. Exploitation of stocks. Management of migratory fish stocks. Conservation of endangered species. Integrated river management. Bioeconomic issues. Legislation. Multinational management of rivers. Case studies.
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ISBN 13 :
Total Pages : 382 pages
Book Rating : 4.:/5 (31 download)
Download or read book Environmental Inventory and Assessment of Navigation Pools 24, 25, and 26, Upper Mississippi and Lower Illinois Rivers written by and published by . This book was released on 1975 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : P. D. Close
Publisher :
ISBN 13 :
Total Pages : 222 pages
Book Rating : 4.:/5 (359 download)
Download or read book Ecological Databases of the Lower Mississippi River written by P. D. Close and published by . This book was released on 1992 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 680 pages
Book Rating : 4.3/5 (91 download)
Download or read book Fisheries Review written by and published by . This book was released on 1988 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 108 pages
Book Rating : 4.:/5 (359 download)
Download or read book An Ecological Investigation of the Baleshed Landing- Ben Lomond and Ajax Bar Dike Systems in the Lower Mississippi River Mile 481 to 494 AHP. written by and published by . This book was released on 1988 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 236 pages
Book Rating : 4.:/5 (3 download)
Download or read book Sport Fishery Abstracts written by and published by . This book was released on 1988 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Stephen P. Cobb
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (133 download)
Download or read book Aquatic Habitat Studies on the Lower Mississippi River, River Mile 480 to 530 written by Stephen P. Cobb and published by . This book was released on 1981 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: TO PROVIDE DATA FOR DESIGN OF FIELD STUDIES TO DETERMINE THE IMPACTS AND ECOLOGICAL VALUE OF THE MAN-MADE HABITATS FORMED BY DIKE AND REVETMENT STRUCTURES IN THE LOWER Mississippi River, the aquatic habitat of a 50-mile reach of the river (mile 480 to 530 Above Head of Passes, AHP) was quantitatively mapped to determine spatial relationships among and within habitat types as a function of river stage and discharge. Twelve aquatic habitat types were defined within the study reach based on hydraulic, geomorphological, and ecological criteria: main channel, natural banks, revetted banks, sandbars, dike fields, permanent and temporary secondary channels, abandoned river channels(Types I and II), oxbow lakes, borrow pits, and inundated floodplain. By use of controlled aerial photography and hydrographic survey data, aquatic habitat surface acreages were computed for three river stages (low flow = +13.2 ft, medium flow = +24.6, and high flow = +38.4 ft on the Greenville, Mississippi, gage). Results of the habitat mapping revealed a significant change in total aquatic habitat acreage with changes in river stage and discharge. At the low flow stage 18,581 acres of habitat were present. Habitat area increased to 29,020 acres at medium flow and rose to 56,902 acres for high flow--a total increase of 222 percent in area over low flow conditions.
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ISBN 13 :
Total Pages : 41 pages
Book Rating : 4.:/5 (227 download)
Download or read book Aquatic Habitat Studies on the Lower Mississippi River, River Mile 480 to 530 written by and published by . This book was released on 1981 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt: Larval fish were collected in the Lower Mississippi River from 8 March to 13 November 1978 to describe variations in diversity and abundance of larval fish among nine types of habitats for the entire spawning season, investigate diel fluctuations in diversity and abundance, and evaluate replicate sampling procedures. The abandoned channel and oxbow lake habitats had similar larval populations; these habitats showed relatively low diversity and high densities of clupeids and centrarchids. Natural banks and revetted banks had high and similar diversities and abundance of larval fish. There were considerable variations in density and diversity among the four revetted bank stations sampled. The dike field habitat was characterized by a high diversity and moderate density of larval fish. All families of larval fish collected during the entire study were represented in the dike field habitat. The diversity and density of larval fish differed greatly among the six dike field stations sampled. Three of the four main channel stations sampled showed low diversity and density of larval fish. The fourth main channel station had high diversity of larval fish and high densities were observed on two sampling dated. Density of larval fish was low but diversity of larval fish was relatively high in the temporary secondary channel habitat. Density and diversity of larval fish were low in the permanent secondary channel and the sandbar habitats. A variance component analysis demonstrated that samples taken within a 1- to 2-hr time period of a diel cycle did not constitute significant (probability
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ISBN 13 :
Total Pages : 560 pages
Book Rating : 4.3/5 (555 download)
Download or read book St. Johns Bayou and New Madrid Floodway written by and published by . This book was released on 1976 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Daniel V. Ragland
Publisher :
ISBN 13 :
Total Pages : 70 pages
Book Rating : 4.:/5 (227 download)
Download or read book Evaluation of Three Side Channels and the Main Channel Border of the Middle Mississippi River as Fish Habitat written by Daniel V. Ragland and published by . This book was released on 1974 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: The importance of side channels and main channel borders as fish habitat was evaluated in three representative areas of the Middle Mississippi River. Fish, benthos, and plankton were collected during five seasonal samples in 1972-1973. Benthic organisms generally occurred in greater numbers in the main channel border habitat. No significant differences were observed between side channels and main channel borders for combined planktonic taxa. Minnows and small fish were nearly 6.0 times more abundant in seine collections from the side channels than in main channel borders. For the more abundant fish species, electrofishing and netting captured significantly more carp, bluegill, shortnose gar, black crappie, bigmouth buffalo, white crappie, and bowfin in the side channels than in adjacent main channel borders. Largemouth bass were found only in the side channels. Significantly greater numbers of freshwater drum were observed in main channel borders. Both the side channels and main channel border areas were important as fish habitat. Adverse environmental conditions and the relatively short duration of the project prevented assessment and documentation of the complete ecological relationship of these integral parts of a large riverine ecosystem. (Modified author abstract).
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ISBN 13 :
Total Pages : 132 pages
Book Rating : 4.:/5 (319 download)
Download or read book An Ecological Investigation of Revetted and Natural Bank Habitats in the Lower Mississippi River written by and published by . This book was released on 1988 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Miles M. Smart
Publisher : Springer
ISBN 13 :
Total Pages : 176 pages
Book Rating : 4.:/5 (44 download)
Download or read book Ecological Perspectives of the Upper Mississippi River written by Miles M. Smart and published by Springer. This book was released on 1986-08-31 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: 'excellently prepared book' G. Weise in Internationale Revue der Gesammten Hydrobiologie, Vol. 73 no. 3, 1988
