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Book Analysis of Freshwater Mussels Unionidae at Specific Sites in Pool 5 and Lake Pepin Upper Mississippi River 1994

Download or read book Analysis of Freshwater Mussels Unionidae at Specific Sites in Pool 5 and Lake Pepin Upper Mississippi River 1994 written by Andrew C. Miller and published by . This book was released on 1996 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 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 Our Living Resources

Download or read book Our Living Resources written by and published by . This book was released on 1995 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt: Report provides information on distribution, abundance, and health of birds, mammals, reptiles and amphibians, fishes, invertebrates, plants, terrestrial ecosystems, aquatic ecosystems, coastal and marine ecosystems, riparian ecosystems, the Great Plains, Interior West, Alaska, and Hawaii. It also discusses special issues: global climate change, human influences, non-native species, and habitat assessments.

Book An Analysis of Freshwater Mussels Unionidae Along Luxapalila Creek Mississippi 1999 Studies

Download or read book An Analysis of Freshwater Mussels Unionidae Along Luxapalila Creek Mississippi 1999 Studies written by and published by . This book was released on 2001 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: In October 1999, 14 sites along Luxapalila Creek between Steens, Mississippi, and Waterworks Road Bridge (River Mile 6.2), were searched for freshwater mussels (Family: Unionidae). All collecting was done by hand and without divers. The purpose was to obtain information that could be used to assess the effectiveness of reasonable and prudent measures and their terms and conditions to reduce impacts to mussels caused by downstream channelization that took place in 1994 to 1996. In addition, results would be used to determine the likelihood of future losses (or incidental take) of federally listed mussel species in the project area. Fifteen species of freshwater mussels, in addition to Corbicula fluminea (Asian clam), were collected. Live specimens of the endemc, federally listed threatened Pleurobema decisum (southern clubshell) was collected at one site. The most abundant living species were Quadrula asperata (Alabama orb) and Lampsilis sframinea claiboniensis (southern fatmucket) which comprised 31.2 and 19.5 percent of the fauna. The third and fourth most abundant species, Tritogonia vemicosa (pistolgrip) and Lampsilis omata (southern pocketbook), comprised 18.7 and 10.9 percent of the collection. The remaining 11 species each comprised less than 4 percent of the fauna. Mussel abundance has changed little in this stream, based upon results of a survey conducted in 1992 and studies conducted in 1997 and 1998.

Book Effects of Increased Commercial Navigation Traffic on Freshwater Mussels in the Upper Mississippi River 1989 Studies

Download or read book Effects of Increased Commercial Navigation Traffic on Freshwater Mussels in the Upper Mississippi River 1989 Studies written by and published by . This book was released on 1991 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1988, the US Army Engineer District, St. Louis (CELMS) initiated a program to analyze the effects of commercial navigation traffic on freshwater mussels (Mollusca: Unionidae), especially the endangered Lampsilis higginsi in the upper Mississippi River (UMR). In 1989 mussels were collected using qualitative and quantitative methods (0.25 - sq - m total substrate samples) at dense and diverse beds in pool 24 (river mile (RM) 299), pool 14 (RM 505), and pool 10 (RM 635) of the UMR. Water velocity and suspended solids concentrations were measured immediately following vessel passage at beds in pools 10 and 14. An assessment of commercial navigation traffic effects will be based on a comparison of baseline data (1988 - 94) with information collected with less intensive sampling from 1994 to 2040. The UMR mussel fauna was dominated by Amblema plicata, which comprised 27.7 percent of the qualitative collection, and was found in 87.1 percent of the samples. Total numbers of the endangered L. higginsi were variable; this species comprised slightly less than 0.5 percent of the bivalve assemblage and ranked 22nd out of 26 species collected using qualitative methods. Total bivalve density ranged from 31.2 + or - 25.7 + or - SD) individuals/ sq m to 184.8 + or- 33.3 individuals/sq m at 24 sites on three mussel beds.