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Book Analysis of Freshwater Mussels  Unionidae   Big Sunflower River Maintenance Project

Download or read book Analysis of Freshwater Mussels Unionidae Big Sunflower River Maintenance Project written by Andrew C. Miller and published by . This book was released on 1995 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Statewide Assessment of Freshwater Mussels  Bivalvia  Unionidae  in Iowa Streams

Download or read book Statewide Assessment of Freshwater Mussels Bivalvia Unionidae in Iowa Streams written by Kelly Elizabeth Arbuckle and published by . This book was released on 2000 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study examined freshwater mussel communities, population densities and recent impacts in Iowa, USA. Data collected from streams previously surveyed (1984-85) and from field surveys in this study (1998-99) were used to examine presence, absence, abundance and recent changes in presence/absence of mussel species at different spatial scales. Results indicate an association between mussel impacts and agricultural land use in separate analyses examining habitat characteristics at different spatial scales. Analysis of mussel species richness at 118 sites showed sharp declines in species richness over the past decade. Species richness declined most dramatically at sites having 50% riparian woodland along the stream length surveyed. At the watershed scale, species richness declined in watersheds where agricultural land use accounted for 25% of the total land area. Over 38 watersheds, we found that watershed mean mussel density and species richness were best correlated with average watershed slope (topographic relief) and presence of alluvial deposits. An analysis of the influence of riparian and instream characteristics on mussel species richness and population density at 200 sites surveyed in 1998-99 showed that stream shading (an effect of riparian woodland) had a significant positive effect on mussel density and mussel species richness. Mussel species richness was negatively correlated with agricultural nutrients, total nitrogen (TN) and total phosphorus (TP). The influence of landscape features on mussel communities is clear in each analysis: degradation of lands adjacent to freshwater ecosystems adversely impacts mussel habitat and the associated mussel communities. These results have important implications in the context of restoration and conservation efforts.

Book An Analysis of Freshwater Mussels  Unionidae  in the Upper Ohio River Near Huntington  West Virginia  1998 Studies

Download or read book An Analysis of Freshwater Mussels Unionidae in the Upper Ohio River Near Huntington West Virginia 1998 Studies written by Andrew C. Miller and published by . This book was released on 2000 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book The Proceedings of the Iowa Academy of Science

Download or read book The Proceedings of the Iowa Academy of Science written by Iowa Academy of Science and published by . This book was released on 1984 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: List of members in each volume.

Book Ecology and Evolution of the Freshwater Mussels Unionoida

Download or read book Ecology and Evolution of the Freshwater Mussels Unionoida written by G. Bauer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: All those who think that bivalves are boring are in the best company. Karl von Frisch is reported to have turned the pages more quickly in texts where bivalves were treated because, according to him, they literally lack any behaviour. The fact that they can filtrate huge amounts of water, burrow into the sedi ment, actively swim, drill holes into rocks and boats or detect shadows with the aid of pretty blue eyes located on the rim of their mantle obviously left v. Frisch unimpressed. Why, then, a book on the large freshwater mussels (Naiads or Unionoida), which on first sight are much less spectacular than the marine ones? The main reason is that they are keepers of secrets which they reveal only on close and careful inspection. This is not only true for the pearls some species produce and which over centuries have contributed to the treasures of bishops and kings, but particularly for their ecology: their life cycles are linked with those of fishes, some can occur in incredible densities and some can live for more than 100 years. Thus, the presence or absence of naiads in a lake or stream has manifold implications.

Book Masters Theses in the Pure and Applied Sciences

Download or read book Masters Theses in the Pure and Applied Sciences written by W. H. Shafer and published by Springer. This book was released on 1982-02-01 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, and dis seminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) * at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the ac tivity 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 concerned if the printing and distribution of the volume were handled by an international 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 Corporation 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 25 (thesis year 1980) a total of 10,308 theses titles from 27 Canadian and 214 United States universities. We are sure that this broader base for theses titles reported will greatly enhance the value of this important annual reference work. While Volume 25 reports theses submitted in 1980, on occasion, certain universities do report theses submitted in previous years but not reported at the time.

Book A Survey of the Freshwater Mussels  bivalvia  Unionidae  of the Green River Basin  Illinois

Download or read book A Survey of the Freshwater Mussels bivalvia Unionidae of the Green River Basin Illinois written by Robert W. Schanzle and published by . This book was released on 1993 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This study was undertaken to determine the species of freshwater mussels currently inhabiting the Green River and its tributaries, not only to secure information concerning the health and distribution of existing mussel populations within the basin, but also to serve as a basis for comparing the Green River with other stream systems in Illinois and the Midwest" -- page 3.

Book An Analysis of Freshwater Mussels  Unionidae  in the Quiver River and Bogue Phalia  Mississippi  1994 95

Download or read book An Analysis of Freshwater Mussels Unionidae in the Quiver River and Bogue Phalia Mississippi 1994 95 written by and published by . This book was released on 1997 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A survey to assess community characteristics, density, population demography of dominant species, and the presence of rare or endangered species of mussels (Family: Unionidae) was conducted in selected reaches of the Quiver River and Bogue Phalia, Mississippi, in 1994 and 1995 for the U.S. Army Engineer District, Vicksburg. Results are being used to assess the economic value of mussels in the project area and to determine the environmental effects of proposed maintenance dredging. The project area included a section of the Quiver River between its confluence with the Big Sunflower River immediately north of Highway 82 in Sunflower County to the Leflore-Tallahatchie county line. In the Bogue Phalia, the study area consisted of a reach between Highway 82 and Rosedale, west-central Bolivar County. Twenty-two species of native freshwater mussels were collected in the Quiver River; 26 sites were sampled using qualitative methods, and a total of 2,238 mussels were collected. The dominant mussel was Amblema p. plicata, which comprised over 67 percent of the mussel fauna. Plectomerus dombeyanus comprised 20 percent of the mussels. Overall species diversity (0.67 to 0.90) was low, mainly because of the dominance of A. p. plicata. Evidence of recent recruitment was low; approximately 7 percent of the species and 0.15 percent of the individuals collected were less than 30 mm total shell length. Overall mean density ranged from less than 8.6 individuals/square meter at River Mile (RM) 6.4 to 92.3 individuals/square meter at RM 19.7.

Book The Role of Fluvial Geomorphology in the Distribution of Freshwater Mussels  Bivalvia  Unionidae  in the Kiamichi River  Oklahoma

Download or read book The Role of Fluvial Geomorphology in the Distribution of Freshwater Mussels Bivalvia Unionidae in the Kiamichi River Oklahoma written by Sabrina G. Negus and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Species Richness  Distribtuion and Relative Abundance of Freshwater Mussels  unionidae  of the Strawberry River Arkansas

Download or read book Species Richness Distribtuion and Relative Abundance of Freshwater Mussels unionidae of the Strawberry River Arkansas written by Sujata Poudel and published by . This book was released on 2012 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: