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Evidence For Adaptive Differences In The Ontogeny Of Osmoregulatory Ability Current Response And Salinity Preference Of Coho Salmon Oncorhynchus Kisutch From Coastal And Interior Populations Microform
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Book Synopsis Evidence for Adaptive Differences in the Ontogeny of Osmoregulatory Ability, Current Response and Salinity Preference of Coho Salmon, Oncorhynchus Kisutch, from Coastal and Interior Populations [microform] by : Gary J. Birch
Download or read book Evidence for Adaptive Differences in the Ontogeny of Osmoregulatory Ability, Current Response and Salinity Preference of Coho Salmon, Oncorhynchus Kisutch, from Coastal and Interior Populations [microform] written by Gary J. Birch and published by National Library of Canada. This book was released on 1987 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evidence for Adaptive Differences in the Ontogeny of Osmoregulatory Ability, Current Response and Salinity Preference of Coho Salmon, Oncorhynchus Kisutch from Coastal and Interior Populations by : Gary J. Birch
Download or read book Evidence for Adaptive Differences in the Ontogeny of Osmoregulatory Ability, Current Response and Salinity Preference of Coho Salmon, Oncorhynchus Kisutch from Coastal and Interior Populations written by Gary J. Birch and published by . This book was released on 1987 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Canadiana written by and published by . This book was released on 1989 with total page 1364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Powell, James Frederick Francis Publisher :National Library of Canada ISBN 13 :9780315202696 Total Pages :160 pages Book Rating :4.2/5 (26 download)
Book Synopsis Effects of Acid Exposure on the Ion Regulation and Seawater Adaptation of Juvenile Coho Salmon (Oncorhynchus Kisutch) [microform] by : Powell, James Frederick Francis
Download or read book Effects of Acid Exposure on the Ion Regulation and Seawater Adaptation of Juvenile Coho Salmon (Oncorhynchus Kisutch) [microform] written by Powell, James Frederick Francis and published by National Library of Canada. This book was released on 1984 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Coastal Ecological Systems of the United States by : Howard T. Odum
Download or read book Coastal Ecological Systems of the United States written by Howard T. Odum and published by Conservation Foundation. This book was released on 1974-06-01 with total page 1977 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Influence of Environmental Salinity and Growth Hormone on Coho Salmon (Oncorhynchus Kisutch (Walbaum)) Osmoregulatory Physiology by : Alexander Mitchell Espy Schreiber
Download or read book The Influence of Environmental Salinity and Growth Hormone on Coho Salmon (Oncorhynchus Kisutch (Walbaum)) Osmoregulatory Physiology written by Alexander Mitchell Espy Schreiber and published by . This book was released on 1994 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Salmon migrating from freshwater (FW) to saltwater (SW) must maintain a constant internal osmotic environment to survive their external salinity transition. Up to 40% of SW introduced coho become stunted and eventually die. With the exceptions of growth hormone (GH), hypocalcin, and possibly epinephrine, stunts maintain a hypoendocrine status. Nine hundred yearling coho salmon were raised in SW for five months; 100 salmon were reared in FW for the same duration. After five months in SW 12% of the population developed into stunts as defined morphologically by low body weight and the retention of parr marks. Early stunts hypoosmoregulated more effectively than their smelt counterparts (significantly higher gill chloride cell activity, higher mean intestinal water/ion transport, significantly lower blood osmotic pressures), but over a period of several days displayed fatal osmoregulatory failure (significantly decreased gill chloride cell activity, decreased mean intestinal water/ion transport, significantly increased blood osmotic pressures). Increased liver potassium in stunts correlated positively with blood osmotic pressure and may be a causal agent of osmoregulatory dysfunction. Elevated liver potassium was found to be a probable function of stress (possibly epinephrine mediated), but not of blood osmotic pressure. Muscle potassium concentrations appear to be a direct function of the protein to fat ratio in the muscle, with healthy smelts possessing low muscle K+ and stunts higher muscle K+. Stunt muscle K+ was not influenced by elevated blood osmotic pressure. Fish allowed to smelt in FW (after four months) appear to revert back to the physiological form of a parr. Coho which smoltified in SW, and were then reacclimated to FW for one month retained elevated intestinal water transport rates (J[subscript v]) characteristic of a SW fish, but otherwise resembled the FW reared smelts. After FW reacclimation and hormone level normalization, stunts and smelts were exposed to 67% SW for 12 hours. During this time stunts maintained lower blood osmotic pressures than the smelts; this can be attributed to a reduced stunt intestinal J[subscript v] which was lacking in the smelts. Salmon growth hormone (sGH) injected intramuscularly for three weeks increased gill chloride cell activity, reduced blood osmotic pressure, and raised mean intestinal J[subscript v] rates in stunts and smelts placed in 67% SW for 12 hours. These characteristics resemble early SW stunt physiology, and thus may help implicate naturally increased GH in SW stunts as an osmoregulatory crutch to an otherwise hypoendocrine condition. Finally, after studying the relationship of fish size to migratory behavior within several different species, it seems that stunt distributions could potentially divide certain species with moderate degrees of anadromy into separate migratory and non-migratory populations. Considering the high amount of energy required to sustain anadromous behavior, a more efficient non- migratory population could be selected for (given adequate food availability). Viewed in this way stunts might be considered a population in transition to full FW residency, rather than just fish with a hypoosmoregulatory dysfunction"--Document.
Book Synopsis Evidence for Adaptive Relationships Between Body Morphology, Body Size and Swimming Performance in British Columbia Populations of Juvenile Coho Salmon, Oncorhynchus Kisutch by : Eric Burke Taylor
Download or read book Evidence for Adaptive Relationships Between Body Morphology, Body Size and Swimming Performance in British Columbia Populations of Juvenile Coho Salmon, Oncorhynchus Kisutch written by Eric Burke Taylor and published by . This book was released on 1984 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Biology of Marine Fungi by : Stephen Thomas Moss
Download or read book The Biology of Marine Fungi written by Stephen Thomas Moss and published by CUP Archive. This book was released on 1986-10-23 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: This definitive account of the biology of both lower and higher marine and estuarine fungi reflects the recent growth of interest in these fascinating plants. The four main themes - ecology, taxonomy, physiology and industrial and applied biotechnology - are each covered by contributors of international repute.
Book Synopsis The Everglades Experiments by : Curtis Richardson
Download or read book The Everglades Experiments written by Curtis Richardson and published by Springer Science & Business Media. This book was released on 2008-03-12 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Florida Everglades ecosystem is recognised world-wide as a significant wetland whose natural processes have been altered and remain threatened. State and Federal US agencies face critical decisions about the course of conservation and restoration efforts. Synthesising nearly ten years of laboratory and field research of the Duke University Wetland Center, this book provides the long-term integrated scientific studies needed to understand the functioning of this region. Background information about the current and historical ecological conditions of the region set the context for reports of long-term research projects, while a series of gradient studies determine the effects of hydrology and nutrient changes. Subsequent sections present models for predicting responses to various conditions and analyse the studies and models, focusing on management and restoration of the Everglades.
Download or read book Section: Rock-drill written by Ezra Pound and published by . This book was released on 1956 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: The most recent portion of the long poem which has occupied him for the last twenty years.
Author :United States. Committee on Environmental Studies for Project Chariot Publisher : ISBN 13 : Total Pages :1250 pages Book Rating :4.:/5 (66 download)
Book Synopsis Environment of the Cape Thompson Region, Alaska by : United States. Committee on Environmental Studies for Project Chariot
Download or read book Environment of the Cape Thompson Region, Alaska written by United States. Committee on Environmental Studies for Project Chariot and published by . This book was released on 1966 with total page 1250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Oceanography and Marine Biology, An Annual Review, Volume 22 by : Harold Barnes
Download or read book Oceanography and Marine Biology, An Annual Review, Volume 22 written by Harold Barnes and published by CRC Press. This book was released on 1984-12-31 with total page 701 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a review covering the basics of marine research, special topics, and emerging areas in fields of oceanography and marine biology. It is intended for researchers and students in all fields of marine science.
Book Synopsis Sri Aurobindo's Concept of the Superman by : Chitta Ranjan Goswami
Download or read book Sri Aurobindo's Concept of the Superman written by Chitta Ranjan Goswami and published by Auromere Books. This book was released on 1976-01-01 with total page 259 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ocean Biogeochemical Dynamics by : Jorge L. Sarmiento
Download or read book Ocean Biogeochemical Dynamics written by Jorge L. Sarmiento and published by Princeton University Press. This book was released on 2013-07-17 with total page 527 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ocean Biogeochemical Dynamics provides a broad theoretical framework upon which graduate students and upper-level undergraduates can formulate an understanding of the processes that control the mean concentration and distribution of biologically utilized elements and compounds in the ocean. Though it is written as a textbook, it will also be of interest to more advanced scientists as a wide-ranging synthesis of our present understanding of ocean biogeochemical processes. The first two chapters of the book provide an introductory overview of biogeochemical and physical oceanography. The next four chapters concentrate on processes at the air-sea interface, the production of organic matter in the upper ocean, the remineralization of organic matter in the water column, and the processing of organic matter in the sediments. The focus of these chapters is on analyzing the cycles of organic carbon, oxygen, and nutrients. The next three chapters round out the authors' coverage of ocean biogeochemical cycles with discussions of silica, dissolved inorganic carbon and alkalinity, and CaCO3. The final chapter discusses applications of ocean biogeochemistry to our understanding of the role of the ocean carbon cycle in interannual to decadal variability, paleoclimatology, and the anthropogenic carbon budget. The problem sets included at the end of each chapter encourage students to ask critical questions in this exciting new field. While much of the approach is mathematical, the math is at a level that should be accessible to students with a year or two of college level mathematics and/or physics.
Book Synopsis Primary Productivity in Aquatic Environments by : Charles Remington Goldman
Download or read book Primary Productivity in Aquatic Environments written by Charles Remington Goldman and published by Univ of California Press. This book was released on 1966 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Morphogenesis and Pattern Formation by : Thomas G. Connelly
Download or read book Morphogenesis and Pattern Formation written by Thomas G. Connelly and published by . This book was released on 1981 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Ocean Blueprint for the 21st Century by : United States. Commission on Ocean Policy
Download or read book An Ocean Blueprint for the 21st Century written by United States. Commission on Ocean Policy and published by . This book was released on 2004 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt: Accompanying DVD contains 2 segments: the first shows the developmental process into making the report, the second shows a summary of the findings and recommendations of the report.