Population Dynamics of the Freshwater Mussel Lampsilis Cardium Reintroduced in Nebraska

Population Dynamics of the Freshwater Mussel Lampsilis Cardium Reintroduced in Nebraska

Author: Lindsay M. Ohlman

Publisher:

Published: 2019

Total Pages: 217

ISBN-13:

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The global decline of native freshwater mussels has accelerated conservation projects that preserve and restore populations, but the complex life histories among species challenges biologists in determining the most effective management strategies. This study details the conservation of plain pocketbook, a Tier I threatened mussel species in Nebraska that was artificially propagated and reintroduced into 13 sites from autumn 2016 to summer 2017. The objectives of this study were: 1) determine how handling influences mussels, and 2) evaluate mussel growth and survival following introductions. We conducted a laboratory experiment with age-2 plain pocketbook to assess the effects of handling on mussel growth and survival. We applied one of three handling rate treatments to experimental units for 12 weeks where mussels were handled up to 25 times. We compared end-of-study growth rates and survival among treatment and control group (i.e., no handling) mussels. Growth rates were unaffected by handling and no mortality occurred during the study, indicating plain pocketbook is tolerant of short-term repeated handling. We then conducted a mark-recapture study for introduced mussels to assess the relations of habitat, timing of introduction, and shell size to mussel growth and survival. We seasonally surveyed sites during 2017 and 2018 to collect habitat data and recapture tagged mussels. We used von Bertalanffy equations to model mussel growth among sites, introduction years, and streams. We used Cormack-Jolly-Seber models to estimate recapture and apparent survival rates of each site. We constructed cumulative daily survival curves and compared curves among sites, introduction years, and streams. We attributed growth differences to water temperatures relating to season of introduction. We determined mussels were at heightened risk for mortality during introduction and spring. We qualitatively linked these time periods to environmental stressors and used this information to identify suitable habitats for mussels and develop recommendations for further introductions. Handling is an anthropogenic stressor for mussels that can be moderated through proper research and techniques. Short-term monitoring studies can provide valuable insight on the population dynamics of introduced freshwater mussels. Implications from this study have the ability to collectively enhance the management of this imperiled taxon.


Conservation Genetics of a Near Threatened Freshwater Mussel Species (Lampsilis Cardium) and Improved Prospects for Recovery

Conservation Genetics of a Near Threatened Freshwater Mussel Species (Lampsilis Cardium) and Improved Prospects for Recovery

Author: Chad D. Ferguson

Publisher:

Published: 2009

Total Pages: 228

ISBN-13:

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Freshwater mussels (Bivalvia: Unionidae) are among the most imperiled organisms in North America. While there is an urgent need for effective conservation planning and management of these organisms, important basic biological information is lacking. This research characterizes levels of genetic diversity and population structure in the Near Threatened (IUCN) freshwater mussel Lampsilis cardium in populations from Twin Creek (southwest Ohio), Little Darby and Big Darby Creeks (central Ohio), and Little Muskingum River (eastern Ohio) and assesses the extent to which regional geological events explain population structuring. Data from the congener Lampsilis ovata from Clinch River (Tennessee) are included for comparison. To characterize these patterns, sequencing of the mtDNA gene cytochrome oxidase c subunit 1 (COI) and nuclear microsatellite genotyping over 12 loci was performed. Additionally, genotype data from both adults and individual glochidia were analyzed to examine parentage and within-population levels of relatedness across common pedigree relationships. Microsatellite data reveal weak population structuring across glaciated and unglaciated drainages and 900 total river miles. However, haplotype analysis and sequence alignment recovered deeply divergent, cryptic lineages within Lampsilis cardium consistent with ancestral introgressive hybridization with Lampsilis ovata or incomplete lineage sorting. Mito-nuclear discordance argues against ongoing hybridization, although polymorphic species are also consistent with the data, and this affirms the importance of multiple molecular markers. In addition to finding multiple paternity in single broods, a number of parent-offspring, full-sibling, and half-sibling relationships for adults and glochidia are described. Numerous instances are noted in which likely full-siblings or half-siblings were located several kilometers apart, demonstrating that DNA-based evidence can describe the spatial nature of dispersal in unionid mussels. In a first report, the likely father of three glochidia from one female's brood was identified 16.2 kilometers upstream, which suggests the possibility of long-distance transport of spermatozoa in Lampsilis cardium. Given the similarity with which Lampsilines reproduce, it is predicted that other members of this genus are also capable long-distance fertilization. If fertilization in populations of freshwater mussels is indeed not limited by the density of breeding adults, the prospects for recovery in this fauna may be better than recently imagined.


Parameter Estimation for Animal Populations

Parameter Estimation for Animal Populations

Author: Larkin Powell

Publisher: Lulu.com

Published: 2015

Total Pages: 258

ISBN-13: 1329061519

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This book is a simple introduction to the logic behind analyses and sampling design for mark-recapture and survey efforts. With a focus on the early user and beginner, the book explains the complicated formulas and statistics that can be effectively used around the world in support of conservation efforts.


The Freshwater Mussels of Tennessee

The Freshwater Mussels of Tennessee

Author: Paul Woodburn Parmalee

Publisher:

Published: 1998

Total Pages: 328

ISBN-13: 9781572330139

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"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.


North American Freshwater Mussels

North American Freshwater Mussels

Author: Wendell R. Haag

Publisher: Cambridge University Press

Published: 2012-08-27

Total Pages: 523

ISBN-13: 0521199387

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Synthesizes the ecology and natural history of North American freshwater mussels for scientists, natural resource professionals, students and natural history enthusiasts.


Ecology and Classification of North American Freshwater Invertebrates

Ecology and Classification of North American Freshwater Invertebrates

Author: James H. Thorp

Publisher: Academic Press

Published: 2010

Total Pages: 1036

ISBN-13: 0123748550

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"The third edition of Ecology and Classification of North American Freshwater Invertebrates continues the tradition of in-depth coverage of the biology, ecology, phylogeny, and identification of freshwater invertebrates from the USA and Canada. This text serves as an authoritative single source for a broad coverage of the anatomy, physiology, ecology, and phylogeny of all major groups of invertebrates in inland waters of North America, north of Mexico." --Book Jacket.


Freshwater Mussels of Texas

Freshwater Mussels of Texas

Author: Robert G. Howells

Publisher: University of Texas Press

Published: 1996-09

Total Pages: 228

ISBN-13: 9781885696106

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Species. Freshwater mussels are the most rapidly declining group of animals in North America. This guide represents a first-ofits-kind reference to assist both biologists and naturalists in the identification and study of freshwater mussels. Freshwater Mussels of Texas contains 224 pages with 226 black and white photographs, 144 color photographs and 79 line drawings covering all 52 species found in Texas waters. Introductory sections cover basic anatomy, reproduction.


Freshwater Mussel Ecology

Freshwater Mussel Ecology

Author: David L. Strayer

Publisher: Univ of California Press

Published: 2008-06-10

Total Pages: 217

ISBN-13: 0520942523

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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.