Download or read book Dissolved Oxygen Dynamics and Fish Community Composition in Dense Emergent Plants at Lakes Istokpoga and Kissimmee Florida written by Aaron Joseph Bunch and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Dissolved oxygen exhibited substantial spatial and temporal variability at small scales (i.e., meters and hours). Centrarchid mortality experiments revealed that mortality was higher when fish were not allowed access to the surface. Stress-tolerant fishes dominated the habitats sampled. Overall, I found higher DO concentrations, higher stress-moderate fish densities, a lower probability of hypoxia, and lower centrarchid mortality in cattail habitats when compared to other habitats sampled in this study. The differences in the factors evaluated in this study (i.e., DO, mortality, and fish metrics) were probably influenced by the structural differences and specific habitat characteristics associated with the individual plant species.
Download or read book High Frequency Detection of Dissolved Oxygen Dynamics in Lakes written by Owen C. Langman and published by . This book was released on 2008 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Structuring Role of Submerged Macrophytes in Lakes written by Erik Jeppesen and published by Springer. This book was released on 1997-12-19 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Submerged macrophytes have been the object of intensive research, and a large body of literature exists on their growth, reproduction, and physiology. Several studies have focused on the interactions between submerged macrophytes and other autotrophic components and the impact of the plants on the dynamics of nutrients, dissolved organic and inorganic carbon, oxygen, and pH. Comparatively few studies have dealt with the ability of submerged macrophytes to modulate the structure and dynamics of pelagic and benthic food webs. Recently, however, the amount of research into the structuring role of submerged macrophytes in food webs has markedly increased, and the results obtained so far suggest that sub merged macrophytes are of significant importance for the food web interactions and environmental quality of lakes, even at relatively low areal plant coverage. For example, plants affect the interactions between predacious, planktivorous, and benthivorous fish and between fish and invertebrates, including key organisms such as large zooplankton and snails. Changes in these interactions in turn may have cascading effects on the entire food web in both the pelagial and the littoral zone. To provide a forum for discussion of recent results in this growing field of research and to define future research needs, a workshop was held on 16 to 20 June, 1996, at the Freshwater Centre in Silkeborg, Denmark. The present book is a result of the workshop. It is divided into three parts.
Download or read book Dissolved Oxygen Dynamics in a Eutrophic Coastal Bay with Mariculture written by Hok-Shing Lee and published by . This book was released on 2017-01-27 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dissolved Oxygen Dynamics Sacramento San Joaquin Delta and Suisun Bay written by California. Dept. of Fish and Game and published by . This book was released on 1972 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dissolved Oxygen Dynamics and Modeling a Case Study in a Subtropical Shallow Lake written by Zhen Xu and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Long Term Changes of Hypolimnetic Dissolved Oxygen and Phytoplankton Community Composition in a Large Lake Lake Simcoe Ontario and Revisit Dissolved Oxygen Profile Models for Lakes in Central Ontario written by Jiahua Li and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Long-term changes in volume-weighted hypolimnetic dissolved oxygen (VWHDO) and phytoplankton community composition were examined as important water quality indicator in Lake Simcoe, a large freshwater lake with impacts by various drivers such as dreissenid mussel (DM) invasion, reduction in phosphorus (P) loading and climatic change and oscillations. VWHDO dynamics were examined by several multiple linear regressions which revealed that VWHDOmin was positively correlated with the invasion of DM and negatively correlated with hypolimnetic water temperature; VWHDO depletion rate (DR) was positively correlated with ammonia and total phosphorus (TP) annual loading. Hence, longer period of thermal stratification (L) may have offset improvements in VWHDOmin generated by P controls and invasive species. Redundancy analysis and variation partitioning revealed that DM acted on phytoplankton composition indirectly by changing the environmental conditions because environmental variables and DM individually explained little variance in phytoplankton composition but water chemistry variables and DM collectively explained a large portion of the variation. A series of models predicting the uppermost plane of the DO-depleted zone (Zox), spring dissolved oxygen (DOi) profile and end-of-summer dissolved oxygen (DOf) profile built by Molot et al. (1992) were re-analyzed, re-calibrated with more recent data (A lakes during 1990-2013), and validated (B lakes during 1990-2013). With the current brownification trend (increased DOC), we expected to see increased DOf at all depths; however, increased reduced N species (ammonia) in the hypolimnion would offset the brownification effect.
Download or read book Dissolved Oxygen Dynamics in Isolated Blackwater Wetlands written by Robert F. Compton and published by . This book was released on 2014 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: In wetlands, as both minimally disturbed and impacted isolated wetlands can display equally low DO levels.
Download or read book Proceedings of the Grass Carp Symposium written by and published by . This book was released on 1994 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Organic Waste Recycling written by Chongrak Polprasert and published by . This book was released on 1989 with total page 357 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Organic Waste Recycling Technology Management and Sustainability written by Chongrak Polprasert and published by IWA Publishing. This book was released on 2017-06-15 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: This fourth edition of Organic Waste Recycling is fully updated with new material to create a comprehensive and accessible textbook: - New chapter on constructed wetlands for wastewater and faecal sludge stabilization. - New sections on: waste recycling vs. climate change and water; faecal sludge and its characteristics; hydrothermal carbonization technology; up-to-date environmental criteria and legislation and environmental risk assessment. - New case studies with emphasis on practices in both developed and developing countries have been included, along with more exercises at the end of chapters to help the readers understand the technical principles and their application. - Novel concepts and strategies of waste management are presented. - Up-to-date research findings and innovative technologies of waste recycling program are provided. This textbook is intended for undergraduate and graduate students majoring in environmental sciences and engineering as well as researchers, professionals and policy makers who conduct research and practices in the related fields. It is essential reading for experts in environmental science and engineering and sustainable waste reuse and recycling in both developed and developing countries.
Download or read book Federal Water Project Recreation Act written by United States. Congress. House. Committee on Interior and Insular Affairs and published by . This book was released on 1965 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecological Dynamics of Tropical Inland Waters written by John Francis Talling and published by Cambridge University Press. This book was released on 1998-12-03 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: A synthesis of tropical freshwater systems which illustrates the basic theory of freshwater biology.
Download or read book Principles of Lake Sedimentology written by L. Hakanson and published by Springer. This book was released on 2011-12-08 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book EPA 904 9 written by and published by . This book was released on 1978-06 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wetlands written by William J. Mitsch and published by John Wiley & Sons. This book was released on 2011-08-24 with total page 675 pages. Available in PDF, EPUB and Kindle. Book excerpt: Praise for the previous editions of Wetlands: "Wetlands, the field of study, would not be what it is without Wetlands, the book." ——Bill Streever, Wetlands, 2001 "The Third Edition of this highly successful book manages to set new standards in presentation and content to confirm its place as the first point of reference for those working or studying wetlands." ——Chris Bradley, University of Birmingham, UK, Regulated Rivers: Research and Management "This book is the wetlands bible...the most wide-ranging [book] on the subject." ——Carl Folke, Royal Swedish Academy of Sciences, Land Use Policy "The single best combination text and reference book on wetland ecology." ——Joseph S. Larson, University of Massachusetts, Journal of Environmental Quality "First on my list of references to recommend to someone new to wetland policy management or science." ——Jay A. Leitch, North Dakota State University, Water Resources Bulletin For more than two decades, William Mitsch and James Gosselink's Wetlands has been the premier reference on wetlands for ecologists, land use planners, and water resource managers worldwide—a comprehensive compendium of the state of knowledge in wetland science, management, and restoration. Now Mitsch and Gosselink bring their classic book up to date with substantial new information and a streamlined text supplemented with a support web site. This new Fourth Edition maintains the authoritative quality of its predecessors while offering such revisions as: Refocused coverage on the three main parts of the book: 1. An introduction to the extent, definitions, and general features of wetlands of the world; 2. Wetland science; and 3. Wetland management. New chapter on climate change and wetlands that introduces the student to the roles that wetlands have in climate change and impact that climate change has on wetlands. Increased international coverage, including wetlands of Mexico and Central America, the Congolian Swamp and Sine Saloum Delta of Africa, the Western Siberian Lowlands, the Mesopotamian Marshland restoration in Iraq, and the wetland parks of Asia such as Xixi National Wetland Park in eastern China and Gandau Nature Park in Taipei, Taiwan. This expanded coverage is illustrated with over 50 wetland photographs from around the world. Several hundred new refer?ences for further reading, up-to-date data, and the latest research findings. Over 35 new info boxes and sidebars provide essential background information to concepts being presented and case studies of wetland restoration and treatment in practice.
Download or read book Soil Survey of Polk County Florida written by and published by . This book was released on 1990 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt:
