Effects of Ammonia on Freshwater Mussels in the St. Croix River
Author | : |
Publisher | : |
Total Pages | : 2 |
Release | : 2004 |
Genre | : Ammonia |
ISBN | : |
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Author | : |
Publisher | : |
Total Pages | : 2 |
Release | : 2004 |
Genre | : Ammonia |
ISBN | : |
Author | : Jerry L. Farris |
Publisher | : CRC Press |
Total Pages | : 400 |
Release | : 2006-11-16 |
Genre | : Science |
ISBN | : 1420042858 |
Responding to the growing need for an aggressive yet conservative approach to evaluating mussel populations, Freshwater Bivalve Ecotoxicology provides a collective review of the techniques and approaches for assessing contaminant impact on freshwater ecosystems. The editors incorporate coverage of research topics and management issues from a cross-section of scientists in the field. They explore current advances in general monitoring of population responses to stressors, fundamental concepts of ecotoxicology specific to burrowing bivalves, and useful insights that offer direction and priority for resolving specific problems challenging protection and conservation efforts. This book lays the groundwork with discussions of topics such as impact assessment, toxicokinetics, biomarkers, and pollution tolerance. The authors then explore fundamental concepts surrounding responses measured in freshwater bivalves as a consequence of chemical exposures or accumulated contaminants in target organs or tissues. They highlight the difficulties encountered with the laboratory culture of these organisms for toxicity testing or other controlled experiments, and examine the use of surrogate test organisms to relate sensitivities of response and reduce pressure on already impacted fauna. The book also reviews innovative field research using in situ bivalve toxicity testing, discusses effects-oriented tissue contaminant assessment, and concludes with threefour specific laboratory or combined field/laboratory ecotoxicology studies. A summary of methods from more than 75 laboratory toxicity studies conducted with freshwater mussels, the book provides an overview of a standardized method for conducting water-only acute and chronic laboratory toxicity tests with glochidia juvenile freshwater mussels. It focuses on studies that report measured contaminant treatments, had robust experimental designs, including replication of control and contaminant treatments, and were published in the peer-reviewed literature. The resulting array of viewpoints provides a framework that can be used to establish priorities in the rehabilitation and management of freshwater ecosystems.
Author | : David A. Johnson |
Publisher | : |
Total Pages | : 126 |
Release | : 2018 |
Genre | : Ammonia |
ISBN | : |
Freshwater mussel populations and distributions have declined over the past several decades in the Buffalo River, Arkansas. Among many possible causes, this study tested the hypothesisthat ammonia concentrations in parafluvial flows through gravel bars might be high enough to impair the survival and growth of juvenile mussels. Ammonia, pH, temperature, and dissolved oxygen were measured in interstitial and water column samples from gravel bars to test for possible longitudinal gradients. Samples were taken along 3 large bars at locations within the Buffalo National River, at approximate bi-weekly intervals between June and September of 2010. Water sample ammonia concentrations were compared with revised US Environmental Protection Agency water quality criteria for the protection of aquatic life. In addition, juvenile mussels were caged immediately upstream and downstream at each of the monitoring sites to test for site and location differences in growth and survival. Interstitial DO, temperature, and pH decreased, and ammonia concentrations increased, as water traveled downstream through the gravel bars. During drought periods when the river was at its lowest flow, ammonia concentrations at some sites exceeded levels that have negative effects on mussels in laboratory tests. However, growth of caged mussels was generally strong at both upstream and downstream locations. Growth rate rose as the river warmed during May and June, peaked at 26-27°C in July, and was lower when temperatures exceeded 28-30°C in both May and August-September. Results indicate that while ammonia concentrations increase in parafluvial flows along bars, these concentrations are diluted rapidly in surface waters and may not have significant impacts on local mussel populations.
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Publisher | : |
Total Pages | : 2068 |
Release | : 2004 |
Genre | : Medicine |
ISBN | : |
Vols. for 1963- include as pt. 2 of the Jan. issue: Medical subject headings.
Author | : |
Publisher | : |
Total Pages | : 834 |
Release | : 2007 |
Genre | : Environmental chemistry |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : 68 |
Release | : 2001 |
Genre | : Hydrology |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : 70 |
Release | : 2001 |
Genre | : Benthic animals |
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Author | : James H. Thorp |
Publisher | : Elsevier |
Total Pages | : 1073 |
Release | : 2001-05-11 |
Genre | : Science |
ISBN | : 0080530672 |
The First Edition of Ecology and Classification of North American Freshwater Invertebrates has been immensely popular with students and researchers interested in freshwater biology and ecology, limnology, environmental science, invertebrate zoology, and related fields. The First Edition has been widely used as a textbook and this Second Edition should continue to serve students in advanced classes. The Second Edition features expanded and updated chapters, especially with respect to the cited references and the classification of North American freshwater invertebrates. New chapters or substantially revised chapters include those on freshwater ecosystems, snails, aquatic spiders, aquatic insects, and crustaceans. Most up-to-date and informative text of its kind Written by experts in the ecology of various invertebrate groups, coverage emphasizes ecological information within a current taxonomic framework Each chapter contains both morphological and taxonomic information, including keys to North American taxa (usually to the generic level) as well as bibliographic information and a list of further readings The text is geared toward researchers and advanced undergraduate and graduate students
Author | : Michael L. Machesky |
Publisher | : |
Total Pages | : 158 |
Release | : 2004 |
Genre | : Lake sediments |
ISBN | : |
Author | : Megan Conlon Tyrrell |
Publisher | : |
Total Pages | : 60 |
Release | : 1994 |
Genre | : Freshwater mussels |
ISBN | : |