Download or read book Daphnia Magna Food Study Test written by Diana Mauller and published by . This book was released on 1986 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Test No 211 Daphnia magna Reproduction Test written by OECD and published by OECD Publishing. This book was released on 2008-10-16 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: The test method described in this Test Guideline assesses the effect of chemicals on the reproductive output of Daphnia magna Straus. To this end, young female Daphnia are exposed to the test substance added to water at a range of concentrations (at ...

Download or read book Aquatics Toxicology and Hazard Assessment written by and published by ASTM International. This book was released on with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Aquatic Toxicology and Hazard Assessment written by J. G. Pearson and published by ASTM International. This book was released on 1982 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Ecology and Evolution of Inducible Defenses written by Ralph Tollrian and published by Princeton University Press. This book was released on 1999-01-17 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inducible defenses--those often dramatic phenotypic shifts in prey activated by biological agents ranging from predators to pathogens--are widespread in the natural world. Yet research on the inducible defenses used by vertebrates, invertebrates, and plants in terrestrial, marine, and freshwater habitats has largely developed along independent lines. Tollrian and Harvell bring together leading researchers from all fields to review common themes and explore emerging ideas. Contributors examine organisms as different as unicellular algae and higher vertebrates, and consider defenses ranging from immune systems to protective changes in morphology, behavior, chemistry, and life history.

Download or read book Lipids in Aquatic Ecosystems written by Michael T. Arts and published by Springer Science & Business Media. This book was released on 2009-06-12 with total page 395 pages. Available in PDF, EPUB and Kindle. Book excerpt: Evidence now suggests that the roles of essential fatty acids as growth promoters and as indices of health and nutrition are fundamentally similar in freshwater and marine ecosystems. Lipids in Aquatic Ecosystems integrates this divergent literature into a coordinated, digestible form. Chapters are organized so as to discuss and synthesize the flow of lipids from lower to higher trophic levels, up to and including humans. Linkages between the production, distribution and pathways of these essential compounds within the various levels of the aquatic food webs, and their ultimate uptake by humans and other terrestrial organisms, are highlighted throughout the book. This book will be of interest to researchers and resource managers working with aquatic ecosystems.

Download or read book Methods for Measuring the Acute Toxicity of Effluents and Receiving Waters to Freshwater and Marine Organisms written by and published by DIANE Publishing. This book was released on 2002 with total page 275 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Predation written by W. Charles Kerfoot and published by . This book was released on 1987 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: Twenty-four essays from a symposium sponsored by the Ecological Society of America, Fort Collins, CO, 1984. The focus is on a single theme: that the mere presence of a predator can influence interactions between two or more competing species in many important ways, all of which have previously been included under the nebulous term effects. Annotation copyrighted by Book News, Inc., Portland, OR

Download or read book Zooplankton written by Petra. H. Lenz and published by Routledge. This book was released on 2021-09-11 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: Zooplankton is a major work of reference for researchers in plankton biology, physiology and behavior, which combines behavioral and psychological approaches to the study of plankton on present and interdisciplinary investigation of sensory processes in pelagic environments. The breadth of perspective thus achieved provides valuable insights into the larger scale ecological processes of biological productivity, community structure and population dynamics. Technological advances in almost all aspects of biological research have opened up opportunities for a re-examination of the sensory ecology of planktonic organisms. In this wide-ranging collection, leading researchers in planktonic behavior and physiology address the rapidly developing interface between these two major areas. The studies presented range from the laboratory to the field and from the cell to the whole organism, but share the common goal of understanding the special sensory world of organisms that live in pelagic environments and how their behavior and physiology relate to it.

Download or read book Aquatic Toxicology and Hazard Assessment written by Rita Comotto Bahner and published by ASTM International. This book was released on 1985 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Procedures and Recommendations for the Culture and Use of Daphnia in Bioassay Studies written by RM. Comotto and published by . This book was released on 1982 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: Despite the widespread use of Daphnia magna as a test organism in bioassay studies, little attention has been devoted to conditions necessary for culturing healthy animals in the laboratory or to the quality and quantity of foods required during chronic life-cycle bioassays. Growth, reproduction, and survival in daphnids are very dependent upon the quality and quantity of their food. Different algal species and artificial diets have been recommended as foods for Daphnia but the impact of these foods on the health and reproduction of test organisms has not been carefully analyzed. We used the appearance of individuals (including the presence of lipid reserves), growth, reproduction, and mortality as criteria for evaluating the suitability of three different food types and food concentrations for chronic life-cycle tests and for determining the maximal duration for chronic life-cycle tests that will consistently yield reliable results. The three foods used were (a) a 1:1 mixture of two algal species, Ankistrodesmus falcatus and Chlamydomonas reinhardtii; (b) Selenastrum capricornutum, a green alga often used in bioassay tests; and (c) trout chow (PR-11) and baker's yeast, an artificial food diet.

Download or read book Biological Test Method written by and published by . This book was released on 1990 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Aquatic Toxicology and Hazard Sixth Symposium written by and published by ASTM International. This book was released on with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Aquatic Toxicology and Hazard Assessment Sixth Symposium written by W. E. Bishop and published by ASTM International. This book was released on 1983 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Progress in Standardization of Aquatic Toxicity Tests written by Amadeu Soares and published by CRC Press. This book was released on 1993-06-16 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: Progress in Standardization of Aquatic Toxicity Tests provides a critical evaluation of the level of standardization achieved by freshwater and marine ecotoxicity tests used to evaluate potential risk of new chemicals and wastewater effluents. Tests at the sub-cellular, individual, laboratory microcosm, and ecosystem levels are presented and critically evaluated. The influence of environmental and genetic heterogeneity on test standardization is also discussed. The book will be an excellent reference for industry professionals, consultants, regulatory officials, and students working in the ecotoxicology field.

Download or read book Small scale Freshwater Toxicity Investigations written by Christian Blaise and published by Springer Science & Business Media. This book was released on 2005-09-22 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt: This broad review is the first to gather comprehensive information on the complete contemporary range of toxicity testing procedures and hazard assessment procedures, which is normally scattered and difficult to find. The two-volume set provides a consistent, template-based approach, linking relevant information on background, theory and practice to each bioassay. Volume 1 covers small-scale toxicity test methods. Includes extensive glossary.

Download or read book Toxicological Evaluation of Certain Veterinary Drug Residues in Food written by Joint FAO/WHO Expert Committee on Food Additives. Meeting and published by World Health Organization. This book was released on 2009 with total page 249 pages. Available in PDF, EPUB and Kindle. Book excerpt: "IPCS--International Programme on Chemical Safety."