Download or read book Environmental Geologic and Antrhopogenic Determinants of Freshwater Mussel Bivalvis Unionidae Distribution in an Agricultural Watershed in Southeastern Michigan written by Sarah Elisabeth Kopplin and published by . This book was released on 2002 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Habitat Rating System for Non wadeable Rivers of Michigan written by Jennifer G. Opdyke Wilhelm and published by . This book was released on 2002 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Incorporating Habitat Characteristics and Fish Hosts to Predict Freshwater Mussel Bivalvia Unionidae Distributions in the Lake Erie Drainage Southeastern Michigan written by Renee Sherman Mulcrone and published by . This book was released on 2004 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book What Makes a Healthy Environment for Native Freshwater Mussels written by and published by . This book was released on 2000 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Population Genetic Structure of Quadrula Aurea Bivalvia Unionidae A Threatened Freshwater Mussel in Central Texas written by Jeffrey A. Mabe and published by . This book was released on 2018 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: The anthropogenic alteration of riverine ecosystems has led to declines in the abundance and diversity of freshwater mussels (Bivalvia: Unionoida) worldwide. Central Texas is home to a diverse freshwater mussel fauna including three candidates for federal listing under the Endangered Species Act. Surveys conducted over the last few decades suggest many of the endemic freshwater mussel species in Texas exist in small isolated populations that may be vulnerable to the deleterious effects of genetic diversity loss. Microsatellite primers from two closely related species were used to identify a set of genetic markers that functioned in the Golden Orb (Quadrula aurea). Microsatellite markers were then applied to document the population genetic structure of Q. aurea within and among three connected river drainages in southeastern Texas. Gene flow within existing Q. aurea populations appears high indicating little potential for genetic issues stemming from isolation and inbreeding. Two weakly divergent admixed populations were identified occupying the San Antonio and Guadalupe/San Marcos rivers. Population genetic structure was related to river basin affiliation, but results for environmental factors were unresolved. Current effective population size estimates are large for the Guadalupe/San Marcos drainage and moderately large for the San Antonio drainage and there is no clear genetic evidence of contemporary population declines. Transport in the glochidial phase by a highly mobile host fish, the channel catfish (Ictalurus punctatus), may provide a mechanism for maintaining connectivity among spatially discrete mussel beds and deserves further study. Information on the occurrence and habitat associations of Q. aurea and two other threatened freshwater mussel species was documented. Quantification of the population genetic structure for Q. aurea provides important information needed for the management of this species, a baseline for understanding future changes, and insight into the factors that shape the population genetic structure of other threatened unionids in Texas.
Download or read book The Influence of Physical Factors on the Distribution and Abundance of Freshwater Mussels bivalvia Unionidae in the Lower Tennessee River written by Carl M. Way and published by . This book was released on 1989 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Assessment of the Freshwater Mussel Community of the Upper Mahoning River Watershed and Factors Influencing Diversity and Abundance in Small Streams written by Matthew T. Begley and published by . This book was released on 2015 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Freshwater mussel communities have experienced drastic declines in diversity and abundance in many streams throughout North America. Among the reasons for these declines is the human-driven alteration of the landscape, as urban and agricultural use impart many known stressors to aquatic systems. Impairments include increased sedimentation, increased pollutants, increased flood frequency and intensity, and decreased diversity and abundance of many organisms, including fish, macroinvertebrates, and mussels. Attempts to explain the abundance and diversity of mussel communities using small-scale factors such as substrate type and flow velocity provided little to no predictive power. Instead, reach-scale variables, such as stream morphology and riparian vegetation, and catchment-scale variables, such as land use, performed better as predictors of mussel diversity and abundance. In this study, surveys of mussel communities were performed in Eagle Creek in 2013 and throughout the entire upper Mahoning River watershed in 2014. Stream morphology was assessed at the sites surveyed in 2014. No published surveys exist for the mussel community of the upper Mahoning River watershed, which is a headwater system in the upper reaches of the Ohio River watershed. The Eagle Creek watershed had the highest proportion of forested land in the upper Mahoning River watershed and supported the largest and most diverse mussel community, although evidence for recruitment was limited in this stream. Across the region, abundance and species richness were strongly correlated with drainage area. Abundance and species richness decreased with increased shear stress, electrical conductivity, and agricultural and urban land use. Conductivity was also correlated with agricultural land use, and no live mussels were found where conductivity exceeded 0.9mS. Overall, the upper Mahoning River watershed had a low diversity and abundance of freshwater mussels, likely due to the intensive anthropogenic land use. Even where conditions appeared better, historic land use may have obscured the relationship between in stream conditions and mussel abundance and diversity, as some populations may have experienced greater stressors in the past than today.
Download or read book North American Freshwater Mussels written by Wendell R. Haag and published by Cambridge University Press. This book was released on 2012-08-27 with total page 523 pages. Available in PDF, EPUB and Kindle. Book excerpt: Synthesizes the ecology and natural history of North American freshwater mussels for scientists, natural resource professionals, students and natural history enthusiasts.
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:
Download or read book Freshwater Mussel Ecology written by David L. Strayer and published by Univ of California Press. This book was released on 2008-06-10 with total page 217 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pearly mussels (Unionoidea) live in lakes, rivers, and streams around the world. These bivalves play important roles in freshwater ecosystems and were once both culturally and economically valuable as sources of food, pearls, and mother-of-pearl. Today, however, hundreds of species of these mussels are extinct or endangered. David L. Strayer provides a critical synthesis of the factors that control the distribution and abundance of pearly mussels. Using empirical analyses and models, he assesses the effects of dispersal, habitat quality, availability of fish hosts, adequate food, predators, and parasites. He also addresses conservation issues that apply to other inhabitants of fresh waters around the globe and other pressing issues in contemporary ecology.
Download or read book The Freshwater Mussels of Tennessee written by Paul Woodburn Parmalee and published by . This book was released on 1998 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The Freshwater Mussels of Tennessee . . . is indispensable to anyone, anywhere, working on this group. Parmalee and Bogan have written a work that sets the standard for future regional guides."--G. Thomas Watters, Ohio Biological Survey "The Freshwater Mussels of Tennessee documents a tremendously diverse and unique mussel fauna that is rapidly being destroyed by modern development. Parmalee and Bogan set a new standard for state mussel surveys in their authoritative, thorough, and and highly readable account. The book will be of interest to biologists and conservationists worldwide and will appeal to anyone who cares about the preservation of natural resources in the southeastern United States."--Robert E. Warren, Illinois State Museum With more than 150 species and subspecies recorded in the state, Tennessee has one of the most diverse freshwater mussel faunas in North America. Valuable as indicators of water quality, these mollusks have themselves become threatened as development encroaches on habitat--twenty-three are currently listed as endangered species and at least twelve have become extinct. This is the first book for Tennessee to deal with this biologically and commercially significant group of mollusks. Its authors have been studying and writing about the mussels of Tennessee for more than twenty years and have undertaken a systematic organization of a large and complex body of information to bring order to a difficult field. The book traces the long history of human exploitation of mussels, from aboriginal food gathering to the growth of the cultured pearl industry. It provides an interpretive context for its exhaustive species accounts with background material on biology, distribution, economic utilization, taxonomy, and conservation issues. The authors also review the life cycle of the mussel and describe its many remarkable traits, such as its shell formation and the strategies it employs during the larval stage in parasitizing fish. The species accounts comprise 128 members of Family Unionidae--from pigtoes and pocketbooks to lilliputs and spikes--plus four additional species. The authors cover classification and synonymy, range and distribution, life history and ecology, and survival status. Particular attention is paid to shell description and structure to assist the reader in identification. Each species account includes a distribution map and color photos of two specimens. The Freshwater Mussels of Tennessee is a major reference that encompasses historical and modern mussel collections and draws on conservation studies that span two centuries. It will stand as an authoritative guide to understanding Tennessee mollusks and as a benchmark in the study of these species worldwide. The Authors: Paul W. Parmalee is professor emeritus of zooarchaeology and director emeritus of the McClung Museum at the University of Tennessee, Knoxville. Arthur E. Bogan is curator of aquatic invertebrates at the North Carolina State Museum of Natural Sciences, Raleigh.
Download or read book Population Genetic Structure of the Freshwater Mussel Lampsilis Siliquoidea bivalvia Unionidae in the Darby Creek Watershed Central Ohio written by Marnin D. Wolfe and published by . This book was released on 2006 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Phylogeography and Genetic Structure of Two Freshwater Mussel Species Bivalvia Unionidae Along Hypothesized Post glacial Dispersal Routes Into the Laurentian Great Lakes written by Trevor L. Hewitt and published by . This book was released on 2015 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Landscape Influences on the Distribution and Growth of Freshwater Mussels Bivalvia microform Unionidae in Southern Ontario written by Todd James Morris and published by National Library of Canada = Bibliothèque nationale du Canada. This book was released on 1996 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Influence of Hydrological Variability on the Spatial Distribution and Orientation of Freshwater Mussels Bivalvia microform Unionidae written by Joanne Di Maio and published by National Library of Canada = Bibliothèque nationale du Canada. This book was released on 1995 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Distribution and Habitat of Freshwater Mussels Mollusca Bivalvia Unionidae in Colorado written by James R. Cordeiro and published by . This book was released on 1997 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modeling Freshwater Mussel Distribution in Relation to Biotic and Abiotic Habitat Variables in the Middle Fork John Day River Oregon written by Ericka E. Hegeman and published by . This book was released on 2012 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt: PUBLIC ABSTRACT: Freshwater mussels are the most threatened taxonomic group in North America with extinction rates that exceed those of many species found in both terrestrial and freshwater ecosystems including fish, birds, and amphibians. Part of the reason that mussels are so threatened is because their larvae are parasitic on fish, making the completion of their life cycle dependent upon healthy fish populations. The imperilment of freshwater mussels is a cause for concern because of the benefits that mussels provide to freshwater ecosystems including habitat enhancement, substratum stabilization, nutrient cycling, and water clarification. Restoration and conservation efforts targeting western freshwater mussels have been constrained by a lack of information about habitat requirements. As a result, I was interested in investigating how mussel density and distribution varied with respect to both biotic and abiotic factors at multiple spatial scales. I used a modeling approach to determine which habitat parameters were associated with mussel distribution and density throughout a 55-kilometer (km) of the Middle Fork John Day River, Oregon. Parameters included physical stream habitat characteristics, host fish presence, water quality measures, and mussel food quantity and quality. Results of this analysis indicated that mussels responded to the hierarchical arrangement of physical habitat from the valley segment to the channel unit and that higher densities of mussels were found in parts of the river that were more stable at high flows. I found that the distribution of host fish was not limiting to mussels in this river system and that the overall physical habitat characteristics such as gravel size, silt cover, and woody debris were most important to explaining mussel density and distribution. These results will assist mussel restoration efforts by providing specific guidance about the types of habitat conditions that are suitable for mussels at multiple spatial scales.
