The Freshwater Mussels of Tennessee


Book Description

"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.










A Study of the Abundance, Diversity, and Recruitment Status of Freshwater Mussels in the Marais Des Cygnes River, Kansas


Book Description

This study examines the status of a freshwater mussel assemblage located on the Marais des Cygnes River at the Marais des Cygnes National Wildlife Refuge in Kansas. Four mussel beds were selected and parameters including density, diversity, area, recruitment status, and habitat selection by mussels were examined at each site. Density within the mussel beds at the four sites ranged from 3.0 mussels/ m2 to 8.9 mussels/ m2. Amblema plicata was the most abundant species at all four sites with densities ranging from 1.3 mussels/ m2 to 4.5 mussels/ m2. The mussel bed at Site 1 had the highest value of species evenness and higher numbers of recent recruits in four aged species. In addition, there was evidence of regular annual recruitment in three tachytictic species at Site 1 in recent years (Amblema plicata, Obliquaria reflexa, and Quadrula pustulosa). In contrast, Ellipsaria lineolata, a bradytictic species experienced higher recruitment success in years where mean monthly discharge in June through August was low. Discriminant models developed at each site based on depth and several substrate variables were accurate (76%-87%) at predicting mussel absence in "unfavorable" habitats (deeper areas with lower ratios of medium and coarse gravel to other particle sizes) but limited in their ability to predict mussel presence in "favorable habitats" (57%-77%). Other factors including stability of the gravel substrate during high flow events, food availability, and temperature may be influencing the micro-scale distribution pattern of mussels at the sites on the Marias des Cygnes River.