Download or read book Effects of the Phytosterol Stigmastanol on Early Life stages and Life cycles of Fathead Minnows Pimephales Promelas and Ceriodaphnia Dubia written by and published by . This book was released on 1999 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pulp Paper Mill Effluent Environmental Fate Effects written by Dennis L. Borton and published by DEStech Publications, Inc. This book was released on 2004 with total page 551 pages. Available in PDF, EPUB and Kindle. Book excerpt: " ... 5th International Conference on Fate and Effects of Pulp and Paper Mill Effluents which was held in Seattle, Washington, June 1-4, 2003"--Acknowledgements.
Download or read book Effects of Western Hemlock Wood Leachate on the Early Life Stage and Life Cycle of the Fathead Minnow Pimephales Promelas written by Timothy J. Hall and published by . This book was released on 2000 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Toxicology and Chemistry written by and published by . This book was released on 2008 with total page 868 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Kelthane and Pydrin on Early Life Stages of Fathead Minnows Pimephales Promelas and Amphipods Hyalella Azteca written by JH. Gibson and published by . This book was released on 1982 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: Embryonic, Larval, and early juvenile stages of fathead minnows (Pimephales promelas) and juvenile amphipods (Hyalella azteca) were exposed to Kelthane, and fathead minnows were exposed to Pydrin in a small self-contained continuous-flow diluter system for approximately 30 days. Survival of the newly hatched larvae was found to be the most sensitive measure of the effect on fathead minnows of both pesticides. Pydrin was approximately 90 times more toxic to fathead minnows than Kelthane. The lowest effect concentrations of Kelthane and Pydrin were 13 times lower than the 96-h median lethal concentration (LC50) values for fathead minnows exposed in Lake Superior water. The upper and lower chronic limits for Kelthane were 39 and 19 μg/litre for fathead minnows and 33 and 19 μg/litre for amphipods. The chronic limits for Pydrin and fathead minnows were 0.43 and 0.33 μg/litre. The mean bioconcentration factors (BCFs) for Kelthane were 3 700 with fathead minnows and 10 000 with amphipods. The mean BCF for Pydrin with fathead minnows was 3 200. Residue concentrations and BCFs for both pesticides increased with increased water concentrations.
Download or read book Endocrine Disruption of Levonogestrel in Early life Stages of Fathead Minnows Pimephales Promelas written by Matthew D. Overturf and published by . This book was released on 2013 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Acute Toxicity of Toxaphene to Fathead Minnows Channel Catfish and Bluegills written by W. Waynon Johnson and published by . This book was released on 1980 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Quantitative Structure activity Relationships Concerning the Toxicity of Heterocyclic Compounds to Early Life History Stages of the Fathead Minnow Pimephales Promelas and the Cladoceran Daphnia Pulex written by Mark David Anderson and published by . This book was released on 1985 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Acute and Chronic Toxicity of Nitrate to Fathead Minnows Pimephales Promelas Ceriodaphnia Dubia and Daphnia Magna written by George Scott and published by . This book was released on 1997 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book User s Guide for Conducting Life cycle Chronic Toxicity Tests with Fathead Minnows Pimephales Promelas written by Duane A. Benoit and published by . This book was released on 1982 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Impacts of 2 4 Dichlorophenoxyacetic Acid 2 4 D on Early Developmental Life Stages of Freshwater Fish written by Gavin Kane Dehnert and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the most common active ingredients in commercial herbicide formulations used around the world is 2,4-Dichlorophenoxyacetic acid (2,4-D). In the United States, commercial 2,4-D herbicides are commonly applied directly into aquatic environments to control invasive, nuisance aquatic species. Based on previous toxicity studies that determined no-observed-effect-concentrations (NOEC) for a variety of fish species, the Environmental Protection Agency permits 2,4-D amine applications up to 4 ppm for spot treatment and up to 2 ppm for whole-lake treatment. However, many of the original toxicity studies were acute toxicity trials (48 to 96 hours), and all of them used juvenile or adult life stages. Yet, application of commercial 2,4-D to aquatic environments typically occurs in the spring when many freshwater fish are spawning, and due to the stability of 2,4-D in the water column of lakes, many non-target species are exposed during early developmental life stages. The goal of this dissertation was to understand the subchronic and chronic impacts of ecologically relevant concentrations of 2,4-D exposure on early life stages of freshwater fish. Chapter 1 demonstrated that exposure to environmentally relevant concentrations of two commercial 2,4-D herbicides and the active ingredient 2,4-D alone negatively impacts the survival of larval fathead minnows ([Pimephales promelas]; family Cyprinidae). Chapter 2, a phylogenetically informed comparative study, demonstrated that 2,4-D exposure also impacts other freshwater fish species across more distant clades (4 other families, 2 other orders). Chapter 3, using other species, zebrafish ([Danio rerio]; family Cyrinidae) and yellow perch ([Perca flavescens]; family Percidae), demonstrated that 2,4-D exposure negatively impacts essential survival behaviors (e.g. prey capture and predator evasion) that are linked to processes in the visual system. Together, results from this dissertation found that exposure to ecologically relevant concentrations of 2,4-D negatively impacts the development and survival of multiple freshwater fish species and suggests that early life stages are more sensitive to 2,4-D exposure. Altogether, the three chapters provide information on the environmental costs of 2,4-D application on non-target organisms, which can help inform and improve risk assessment decisions.
Download or read book The Effects of Predation Risk on Phenotypic and Hatching Time Variation in Fathead Minnow i pimephales Promelas i Embryos written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Predation has long been recognized as a strong selective force influencing the behaviour, morphology and life history traits of prey species. Some prey species have the ability to alter their phenotypes in response to predation threat, to decrease their chances of being detected, caught and/or consumed by predators. It has also been demonstrated that some species have control over the timing of transition between one specific life stage and the next. This ability gives the prey control over how much time it spends in a risky stage. A particularly vulnerable stage for many prey fishes is that of the embryo, as they are a major prey item for many invertebrate and vertebrate predators. As such, strong selection pressure should exist for the development of anti-predator defenses specific for this time period. In a series of four experiments I assessed the ability of fathead minnow embryos to alter their hatching time and/or phenotype in response to various predation threats. In the first three experiments injured embryo cue was used to simulate a predation threat, as it has been shown to represent a general predation risk for many aquatic animals. In the fourth experiment predator odour was used in conjunction with injured embryo cues. Results of a power analysis conducted on the first three experiments determined with 95% confidence that fathead minnow embryos do not alter their hatch time in response to injured embryo cues. However, the embryos in the predation treatment did hatch with an altered phenotype; fry were significantly smaller (total body length) when exposed to predation cues. In the fourth experiment the embryos hatched with the same altered morphology in response to injured embryo cues combined with predator cues. Moreover, in this experiment the embryos hatched faster in the predation treatment than the control treatment. This is the first empirical evidence that fish can alter their hatching time in response to predation.
Download or read book Acute Toxicities of Organic Chemicals to Fathead Minnows Pimephales Promelas written by L. T. Brooke and published by Lake Superior Research Institute. This book was released on 1990 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Emerging Contaminants Vol 1 written by Nadia Morin-Crini and published by Springer Nature. This book was released on 2021-04-21 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Emerging contaminants are chemical and biological agents for which there is growing concern about their potential health and environmental effects. The threat lies in the fact that the sources, fate and toxicology of most of these compounds have not yet been studied. Emerging contaminants, therefore, include a large number of both recently discovered and well-known compounds such as rare earth elements, viruses, bacteria, nanomaterials, microplastics, pharmaceuticals, endocrine disruptors, hormones, personal care products, cosmetics, pesticides, surfactants and industrial chemicals. Emerging contaminants have been found in many daily products, and some of them accumulate in the food chain. Correlations have been observed between aquatic pollution by emerging contaminants and discharges from wastewater treatment plants. Most actual remediation methods are not effective at removing emerging contaminants. This first volume presents comprehensive knowledge on emerging contaminants with a focus on analysis, toxicity, antibiotic resistance and human health.
Download or read book Environmental Fate and Effects of Pulp and Paper written by Mark R. Servos and published by CRC Press. This book was released on 2020-02-03 with total page 724 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, there have been emerging concerns regarding the fate and effects of pulp and paper mill effluents on the environment. Countries throughout the world are focusing attention on the implementation of regulatory and monitoring programs. In response, industry has begun to implement a variety of process and treatment technologies designed to minimize or eliminate the potential impacts. Environmental Fate and Effects of Pulp and Paper Mill Effluents explores the most active and critical current research and experimentation from around the world. This comprehensive overview examines the identity and origin of chemicals in pulp mill effluents, environmental fate of chemicals from pulp and paper mills, bioaccumulation of substances from pulp mills to fish and wildlife, field and laboratory studies of biochemical and whole organism responses associated with pulp and paper effluents, integrated monitoring and future research, and policy directions of this rapidly evolving field. Written by prominent scientists from around the world with contributions from industry, government, and academia, this important new book provides a balanced global perspective of the recent scientific findings and the challenges being faced in the immediate future.
Download or read book Aquatic Toxicity of Pulp and Paper Mill Effluent written by D. McLeay and Associates and published by . This book was released on 1987 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: Literature review and evaluation of current knowledge, concerns and monitoring techniques associated with the aquatic toxicity of pulp and papermill effluents. Topics covered include: toxic constituents in milleffluents, receiving waters and sediments; laboratory monitoring for toxicity; toxic effects of mill effluents within receiving waters; bioaccumulation and elimination of organic constituents in mill effluents; and bioassay tests for predicting the impact of wholemill effluents in the aquatic environment. International sources are included.
Download or read book Environmental Chemistry written by Eric Lichtfouse and published by Springer Science & Business Media. This book was released on 2005 with total page 818 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes advances in this new, fast developing science, which seeks to decipher fundamental mechanisms ruling the behaviour in water, soils, atmosphere, food and living organisms of toxic metals, fossil fuels, pesticides and other organic pollutants. Sections on eco-toxicology, green chemistry, and analytical chemistry round out this thorough survey of conditions and analytical techniques in an emerging specialty.
