Download or read book Factors Affecting the Distribution Abundance and Condition of an Invasive Freshwater Bivalve in a Thermal Plume written by Rowshyra Castaneda and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "The Asian clam, Corbicula fluminea, is a freshwater bivalve that has recently invaded artificially heated waters downstream of the Gentilly-2 nuclear power plant in the St. Lawrence River. C. fluminea is one of the world's most invasive molluscs, owing to its ability to rapidly establish dense populations in new areas. Its physiological requirements have apparently restricted its global distribution to waterbodies whose temperatures remain above 2oC throughout the year; however, recent invasions suggest that the clam may be adapting to lower temperatures. Using published data, I have identified patterns of the distribution and population densities of C. fluminea in artificially heated and natural (non-heated) waterbodies. Densities of C. fluminea populations do not differ between artificially heated and non-heated waters, but exhibit a positive trend with latitudinal distance such that peak densities occur in middle latitudes. The occurrence of C. fluminea in United States rivers below 40oN is positively correlated with human population density. At local scales within the St. Lawrence River, temperature, flow velocity, turbidity and depth were identified as factors that affect the distribution and density of C. fluminea. Furthermore, the clam was restricted to sites within the thermal plume of the Gentilly-2 power plant, and its body condition and reproductive status varied in time and space. The presence of C. fluminea in St. Lawrence River raises the question of whether the species can use the thermal plume to adapt to colder conditions and spread further in the river, especially as warming trends continue." --
Download or read book Factors Affecting the Distribution and Abundance of an Invasive Freshwater Mysid written by Suncica Avlijas and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "The freshwater shrimp Hemimysis anomala is a recent Ponto-Caspian invader of the Great Lakes-St. Lawrence River basin. Based on its invasion history, high predation rate and the naiveté of the ecosystems in which it has been introduced, it has the potential to exert strong impacts on native food webs. Risk assessment and effective monitoring of the spread of this invader require information about the environmental factors that limit its local abundance and distribution. A literature review suggests that H. anomala has broad environmental tolerances but may be limited by low water conductivity levels, high local flow, and low dissolved oxygen. An empirical model derived from results of a field study in the St. Lawrence River identified specific conductivity and shoreline heterogeneity as important predictors of H. anomala occurrence and abundance across sites. The relationship between conductivity and H. anomala occurrence is further supported by experimental evidence that demonstrates lower functional responses at lower conductivity levels. Distance from shore and depth were also good predictors of H. anomala abundance, which was maximal in areas close to shore and at depths above 2 m. " --
Download or read book Ecological Effects of Thermal Discharges written by T. Langford and published by Springer Science & Business Media. This book was released on 1990-11-30 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: The job of the responsible zoologist should be to assess or attempt to predict the consequences of any effluent or other environmental disturbance as objectively as possible, bearing in mind both the needs of conservation and the reasonable demands of man.
Download or read book Thermal Plumes in Lakes written by J. V. Tokar and published by . This book was released on 1971 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effects of Thermal Plumes on the Distribution of Benthic Insect Larvae written by Anthony Calandriello and published by . This book was released on 1977 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Interpopulation Variation in Thermal Responses by an Invasive Freshwater Fish written by Heather Reid and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "The dual stressors of climate change and species invasion are transforming ecosystems worldwide. Risk assessments of the joint effects of these overlapping stressors are urgently needed but are impeded by incomplete data on the thermal ecology of invasive species. A review of published thermal metrics for a subset of the world’s most invasive freshwater fishes found evidence of intraspecific variation in thermal tolerances and preferenda; however, most studies of a given species examined only a single population (66%) or did not distinguish populations (19%), suggesting major information gaps even among species deemed to pose the greatest invasion risks. Through a series of experiments, I examined population-level variation in behavioural and physiological responses to elevated temperatures in a Eurasian freshwater fish, the round goby (Neogobius melanostomus), which has a 30-year invasion history in North America. Across a range of environmentally relevant temperatures (18°C–28°C), I measured the maximum feeding rates and thermal tolerances of individuals from four populations distributed along a latitudinal gradient in the Great Lakes-St. Lawrence River basin. Southern populations had the highest observed feeding rates, and consumption decreased at elevated acclimation temperature for all populations. Thermal tolerances were higher for the southern populations than the northern ones across all acclimation temperatures. All populations increased their thermal tolerance with acclimation to rising temperatures until 26°C, after which the northern populations declined in tolerance when acclimated to 28°C, whereas the southern populations continued increasing in tolerance. The tolerance decline observed here for the northern populations has rarely been documented in thermal studies and provides evidence of crucial thermal thresholds for fishes past which acclimation can have negative effects on performance. Population-specific thermal response data could enhance risk assessments and enable better predictions of invasive species’ performance across a latitudinal range under climate warming"--
Download or read book Invasion Ecology written by Julie L. Lockwood and published by John Wiley & Sons. This book was released on 2013-04-05 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new edition of Invasion Ecology provides a comprehensive and updated introduction to all aspects of biological invasion by non-native species. Highlighting important research findings associated with each stage of invasion, the book provides an overview of the invasion process from transportation patterns and causes of establishment success to ecological impacts, invader management, and post-invasion evolution. The authors have produced new chapters on predicting and preventing invasion, managing and eradicating invasive species, and invasion dynamics in a changing climate. Modern global trade and travel have led to unprecedented movement of non-native species by humans with unforeseen, interesting, and occasionally devastating consequences. Increasing recognition of the problems associated with invasion has led to a rapid growth in research into the dynamics of non-native species and their adverse effects on native biota and human economies. This book provides a synthesis of this fast growing field of research and is an essential text for undergraduate and graduate students in ecology and conservation management. Additional resources are available at www.wiley.com/go/invasionecology
Download or read book Zebra Mussels Biology Impacts and Control written by Thomas F. Nalepa and published by CRC Press. This book was released on 1992-11-24 with total page 848 pages. Available in PDF, EPUB and Kindle. Book excerpt: The introduction and rapid spread of the zebra mussel in North American waters has caused great concern among industrial and recreational users of these waters. This bivalve mollusk is a biofouler that attaches to any firm substrate (e.g. rocks, piers, water intake pipes, boat hulls) and has already created significant problems for raw water users such as water treatment plants and power plants. Zebra Mussels: Biology, Impacts and Control provides essential information regarding the biology of the zebra mussel in North America and Europe, presents case studies of environmental and industrial impacts, and outlines control strategies. Summary articles detail its life history, origins, and morphology. The book also examines techniques used to culture and maintain this organism in the laboratory. Thirty-two color plates illustrate some of the dramatic problems created by the explosive population growth of this species. Zebra Mussels: Biology, Impacts, and Control is an important resource for ecologists, conservationists, environmental consultants, water quality engineers, regulatory officials, power utilities, and libraries.
Download or read book Climate Change Ocean Acidification and Sponges written by José Luis Carballo and published by Springer. This book was released on 2017-10-27 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: While sponges represent a very simple group of organisms, which are represented by over 8000 species, there is considerable interest in the increasing role they may play in future marine ecosystems. While we still have a comparatively limited understanding of how sponges will respond to ocean warming and acidification there is evidence that some species may have the ability to acclimate or even adapt to these stressors. This comprehensive collection of articles describes our current understanding of the impacts of ocean acidification and warming on sponges across multiple levels of biological organisation, and from the geological past to the present. With expert contributions from across the world this book represents the most up-to-date view on sponge responses to climate change. This book will be of interest to a wide audience of marine scientists and managers, who are grappling with how to manage, conserve and protect marine ecosystems.
Download or read book Oil in the Sea III written by National Research Council and published by National Academies Press. This book was released on 2003-03-14 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the early 1970s, experts have recognized that petroleum pollutants were being discharged in marine waters worldwide, from oil spills, vessel operations, and land-based sources. Public attention to oil spills has forced improvements. Still, a considerable amount of oil is discharged yearly into sensitive coastal environments. Oil in the Sea provides the best available estimate of oil pollutant discharge into marine waters, including an evaluation of the methods for assessing petroleum load and a discussion about the concerns these loads represent. Featuring close-up looks at the Exxon Valdez spill and other notable events, the book identifies important research questions and makes recommendations for better analysis ofâ€"and more effective measures againstâ€"pollutant discharge. The book discusses: Inputâ€"where the discharges come from, including the role of two-stroke engines used on recreational craft. Behavior or fateâ€"how oil is affected by processes such as evaporation as it moves through the marine environment. Effectsâ€"what we know about the effects of petroleum hydrocarbons on marine organisms and ecosystems. Providing a needed update on a problem of international importance, this book will be of interest to energy policy makers, industry officials and managers, engineers and researchers, and advocates for the marine environment.
Download or read book North American Freshwater Mussels written by Wendell R. Haag and published by Cambridge University Press. This book was released on 2012-08-27 with total page 523 pages. Available in PDF, EPUB and Kindle. Book excerpt: Synthesizes the ecology and natural history of North American freshwater mussels for scientists, natural resource professionals, students and natural history enthusiasts.
Download or read book World Atlas of Seagrasses written by Frederick T. Short and published by Univ of California Press. This book was released on 2003 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seagrasses are a vital and widespread but often overlooked coastal marine habitat. This volume provides a global survey of their distribution and conservation status.
Download or read book Guide to Best Practices for Ocean Acidification Research and Data Reporting written by and published by . This book was released on 2011 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Interactions in the Marine Benthos written by Stephen J. Hawkins and published by Cambridge University Press. This book was released on 2019-08-29 with total page 535 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive account of how abiotic and biotic interactions shape patterns of coastal marine biodiversity and ecosystem processes globally.
Download or read book Freshwater Mussel Ecology written by David L. Strayer and published by Univ of California Press. This book was released on 2008-06-10 with total page 217 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pearly mussels (Unionoidea) live in lakes, rivers, and streams around the world. These bivalves play important roles in freshwater ecosystems and were once both culturally and economically valuable as sources of food, pearls, and mother-of-pearl. Today, however, hundreds of species of these mussels are extinct or endangered. David L. Strayer provides a critical synthesis of the factors that control the distribution and abundance of pearly mussels. Using empirical analyses and models, he assesses the effects of dispersal, habitat quality, availability of fish hosts, adequate food, predators, and parasites. He also addresses conservation issues that apply to other inhabitants of fresh waters around the globe and other pressing issues in contemporary ecology.
Download or read book Oceanic Abstracts written by and published by . This book was released on 1997-10 with total page 1070 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
