Tài liệu Lipids in Aquatic Ecosystems docx

[...]... These lipids maintain specific membrane functions providing the matrix for a very wide variety of metabolic processes and participate directly in membrane fusion events In addition to a structural function, some polar lipids may act as key intermediates (or precursors of intermediates) in cell signalling pathways (e.g inositol lipids, sphingolipids, oxidative products) and play a role in responding to... understanding of fish production, cold tolerance, and fitness in both marine and freshwater ecosystems • Nutritionists – It is now well recognized that EFAs play a critical role in the health and well-being of all vertebrates including humans What is less clear, given global declines in fish stocks, is how we can maintain sustainable EFA production at the base of the food chain for ultimate incorporation into... understanding the consequences of many of these threats because lipids are sensitive, and both specific and broad, indicators of stress and change The study of lipids in aquatic ecosystems also provides an effective vehicle for bringing different disciplines together This is important because, in order to better define the consequences of global threats to ecosystem sustainability, we need integrative interdisciplinary... effects in aquatic organisms They also reveal that aquatic organisms are capable of avoidance behaviors, detoxification, and other adaptive strategies to either avoid or deal with exposure to toxic lipids “Integrating Lipids and Contaminants in Aquatic Ecology and Ecotoxicology” (Chap 5) is a relatively new area being pioneered by Martin Kainz and Aaron Fisk They show that the uptake of contaminants,... eventually in humans Thus, environmental managers, working in consultation with health professionals, have a strong xx Introduction interest in providing environmental management solutions that minimize contaminant loads while simultaneously maximizing EFA availability in fish • Environmental chemists – Environmental chemists will gain a deeper understanding of the more holistic, ecological effects that lipids. .. tobias.vrede@emg.umu.se Susan B Watson Aquatic Ecosystems Management Research Division, National Water Research Institute – Environment Canada, P.O Box 5050, 867 Lakeshore Road, Burlington, ON, Canada L7R 4A6 sue.watson@ec.gc.ca Lipids in Aquatic Ecosystems Michael T Arts, Michael T Brett, and Martin J Kainz Introduction Life began as a process of self-organization within a lifeless environment For single and, subsequently,... that specific fatty acids play in maintaining the health and condition of teleost cell membranes especially in terms of temperature adaptation and on the close association between EFAs and healthy immune system function Global warming is currently a center stage issue in science In Chap 11, Lipids in Marine Copepods: Latitudinal Characteristics and Perspective to Global Warming,” Gerhard Kattner and Wilhelm... “establish a general reference and review book for those interested in aquatic lipids and to “demystify lipid research.” Its focus was mainly on freshwater ecosystems Since these two publications in the late 1990s, the field has advanced considerably, most notably in such areas as: • • • • • • • • • Refining the understanding of the essentiality of specific lipids Biochemical pathways and controls on PUFA... increasing almost exponentially As more detailed and informative experiments and observations are made, it is becoming clear that some lipids (e.g., the long chain, polyunsaturated, omega-3 fatty acid “docosahexaenoic acid” or “DHA” for short, 22:6n-3) have a critical role to play in maintaining the health and functional integrity of both aquatic and terrestrial organisms Thus, the more general interest in. .. the more general interest in lipids as structural components and as purveyors of energy is increasingly being coupled with this deeper understanding resulting in a parallel increase in publications dealing specifically with individual lipid molecules such as DHA The chapters in this book are broadly organized so as to elaborate and synthesize concepts related to the role of lipids from lower to higher . class="bi x0 y0 w1 h1" alt="" Lipids in Aquatic Ecosystems Michael T. Arts • Michael T. Brett Martin J. Kainz Editors Lipids in Aquatic Ecosystems ISBN: 978-0-387-88607-7. energy is increasingly being coupled with this deeper understanding resulting in a parallel increase in pub- lications dealing specifically with individual