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Reactive oxygen species (ROS) are increasingly appreciated as down-stream effectors of cellular damage and dysfunction under natural and anthropogenic stress scenarios in aquatic systems. This comprehensive volume describes oxidative stress phenomena in different climatic zones and groups of organisms, taking into account specific habitat conditions and how they affect susceptibility to ROS damage. A comprehensive and detailed methods section is included which supplies complete protocols for analyzing ROS production, oxidative damage, and antioxidant systems. Methods are also evaluated with respect to applicability and constraints for different types of research. The authors are all internationally recognized experts in particular fields of oxidative stress research. This comprehensive reference volume is essential for students, researchers, and technicians in the field of ROS research, and also contains information useful for veterinarians, environmental health professionals, and decision makers.

Includes articles on agriculture, ecology, forests, wetlands, and environment, as well as organisms

This report focuses on those chemicals that persist in the Canadian environment and that are accumulated by aquatic organisms. It summarizes scientific information collected previously, with emphasis on Canadian research findings published in the last decade. The first part of the report introduces the general features of aquatic ecosystems and provides basic information on the fate and effects of chemical contaminants. The second part reviews contaminant related issues for the following geographic areas: Atlantic marine ecosystems including the St. Lawrence, Bay of Fundy, and general north-west Atlantic; freshwater ecosystems including the Great Lakes and inland waters; the Arctic marine ecosystem; and Pacific aquatic ecosystems including the British Columbia coastal ecosystem, the open coast, and some of the major rivers. All chapters discuss the major contaminant issues, important oceanographic or limnological features, biological resources, and sources of contaminants as well as contaminant trends, distribution, and effects. Current and emerging chemical contaminant issues and associated research topics are summarized at the end of each chapter. The third part is an overall assessment of current knowledge of chemical contaminants and their effects on fish and fish habitat, and identifies major current and emerging contaminant issues confronting Canada's fish and fish habitat.

Hardbound. This new volume from the SETAC (Society of Environmental Toxicology and Chemistry) Special Publications Series examines the phenomenon of persistent pollutants in the seas and oceans. Unlike the highly visible and obvious effects caused by oil, certain chemicals have unseen but long-term and far-reaching effects on the marine ecosystem. They often have long half-lives, are carried great distances and pass easily through the food chain from prey to predator. The behaviour and effects of these persistent pollutants on each type of marine animal (invertebrates, vertebrates, fish, mammals and fish-eating birds) are described. A final overview draws the observations and conclusions together presenting a work that provides a foundation for understanding the behaviour of persistent pollutants in the marine environment.

Beginning with vol. 9, only new and continuing but modified projects are listed. Vols. 8- should be kept as a record of continuing but unchanged projects.

This new book is unusual in approaching the subject from a chemist's and toxicologist's point of view, providing a toxicity-based solution to controlling waste discharges.

Biology and ecophysiology of fishes of the Amazon. Ecophysiological aspects of Amazonian blackwater litterbank fish communities. Electric signalling and communication in weakly electric fishes (Gymnotiformes) of South America. Reproductive biology of piranhas (Teleostei, Characiformes). Larval development in the tambaqui (Colossoma macropomum) and the curimatã-pacú (Prochilodus marggravii). Physiological responses to hypoxia and pH changes. Surviving low oxygen levels: Lessons from fishes of the Amazon. Hemoglobin adaptations in Amazonian and temperature fish with special reference to hypoxia, allosteric effectors and functional heterogeneity. Acid excretion in Amazonian fish. The interaction between O2 and CO2 exchange in the obligate air breather, Arapaima gigas, and the facultative air breather, Lipossarcus pardalis. Ion regulation in ion poor waters of low pH. Ammonia excretion in fish adapted to an ion-poor environment. The hemoglobins of two species of the genus Hypophthalmus (Siluriformes, Hypophthalmidae). Control of ventilation in air-breathing fish. Cardiorespiratory function and aquatic surface respiration in Colossoma macropomum exposed to graded and acute hypoxia. Morpho-functional adaptations of gills in tropical fish. Ventilatory flow relative to intrabuccal and intraopercular volumes in two ecologically distinct erythrinids (Hoplias malabaricus and Hoplias lacerdae) exposed to normoxia and graded hypoxia. Aquatic respiration during hypoxia of the facultative air-breathing Holerythrinus unitaeniatus. A comparison with the water-breathing Hoplias malabaricus. Cardiovascular physiology in lungfishes. Oxygen sensing and metablic regulation: short, intermediate, and long term roles. Respiration in fishes of the Amazon: metabolic adjustments to chronic hypoxia. Cardiac energy metabolism in teleosts and marine elasmobranchs: Where do freshwater elasmobranchs fit?. Antioxidant defenses in fishes of the Amazon...

The Encyclopedia of Ecology contains contributions from international experts on a diverse array of topics related to ecology. It provides current and comprehensive information on many themes, including behavioral ecology, ecological processes, ecological modeling, ecological engineering, ecological indicators, ecological informatics, ecosystems, ecotoxicology, evolutionary ecology, general ecology, global ecology, human ecology, and systems ecology. The online version includes extensive internal cross-referencing and dynamic linking to journal articles and abstract databases.

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