Download or read book Feeding Ecology of the Walleye in Western Lake Erie and Its Potential Consequences written by Ellen K. Pikitch and published by . This book was released on 1983 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Ecology and Management of the Walleye in Western Lake Erie written by Henry A. Regier and published by . This book was released on 1969 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effect of Ecosystem Change on the Feeding Ecology of Eastern Lake Erie Rainbow Smelt Osmerus Mordax written by Sandra Lee Parker and published by . This book was released on 2001 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Walleye written by Wallace Niemuth and published by . This book was released on 1966 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Legacies of Early life Experiences on Individual Cohort and Population Performance of Lake Erie Walleye written by Leah Zoe Almeida and published by . This book was released on 2021 with total page 279 pages. Available in PDF, EPUB and Kindle. Book excerpt: The experiences an individual has during early development may have life-long effects (“experiential legacies”) which can also have population-level consequences. However, since experiential legacies are difficult to measure in populations, how experiential legacies of individuals affect cohort- and population-level outcomes (i.e., buffering or amplifying population responses) remains difficult to discern. The objective of my dissertation research is to evaluate the extent to which experiential legacies affect individual performance and alter population dynamics. By exploring the importance of individual life events to populations, we can better understand the interconnectedness of life stages and better anticipate how environmental change may alter population and community dynamics. Specifically, I examined individual experiential legacies across a range of animal species with the goal of identifying generalizable patterns in response to early-life nutritional stress (Chapter 2), and then I focused on experiential legacies within individuals (Chapter 3), cohorts of individuals (Chapter 4), and a population consisting of multiple cohorts (Chapter 5) in Lake Erie Walleye (Sander vitreus). Lake Erie Walleye present a population for which understanding the long-term impacts of early-life experiences may be particularly valuable due to current human-induced environmental changes within its ecosystem. Since experiential legacies can produce unanticipated changes in the kinds as well as proportions of subsequent (i.e., later in life) phenotypes, examining patterns across multiple species may expose underlying trends. Patterns in experiential legacies across 81 studies of 65 animal species demonstrated generally consistent negative or neutral impacts of early nutritional stress on later-life phenotypes, indicative of energy depletion as a mechanism for the long-term consequences of early-life conditions (Chapter 2). Yet, overall, my results emphasize the existence of complicated interactions among a suite of phenotypic responses in determining individual performance. Within Lake Erie Walleye, I found evidence of experiential legacies from early-life experiences using laboratory experiments, but I also observed indications of the strong influence of maternal legacies and of carryover effects from more recent experiences using long-term data on cohorts. Nutritional quality of food during early life (a 10-d period starting when Walleye could first feed) was positively correlated with Walleye juvenile sizes and this correlation with size continued even after all treatments were fed on a high-quality standardized diet for an additional 27-d (Chapter 3). Beyond the period examined in my laboratory experiments, though, in an analysis of field data, I found that maternal effects were more influential than sizes or densities achieved during the first few months of life to annual growth in Walleye cohorts at ages 3-5 (Chapter 4). Thus, early-life experiences can produce experiential legacies in Lake Erie Walleye, but those experiences may be overwhelmed by the lingering influence of other factors such as maternal effects. Additionally, at the cohort-level, growth in the previous year negatively affected recent growth at ages 3-5, which may be indicative of compensatory growth in Walleye and could reduce variation among cohorts in size-at-age over a longer period of time. At the population-level, I modeled how specific experiential legacies may be more or less beneficial under different environmental conditions for Lake Erie Walleye, which demonstrates characteristics of a periodic life history (i.e., high fecundity, low early-life survival, old age at maturity), as well as for populations representing equilibrium (low fecundity, low early-life survival, old age at maturity) and opportunistic (high fecundity, low early-life survival, young age at maturity) life histories (Chapter 5). Across experiential legacies and these three life history strategies, early-life environments were primarily responsible for differences in simulated population growth rates and demography, with more frequent “good” early-life environments increasing population growth rates, increasing variation in population growth rates, and decreasing the proportion of older ages in the populations. However, when early-life environments were likely to be good and later-life environments were likely to be poor, experiential legacies that create lifetime trajectories (i.e., early-life conditions establish phenotypes that persist throughout life) were beneficial to population growth for all life histories. While other modeled experiential legacies did not demonstrate any specific benefit to Walleye, experiential legacies that create environmental specialization (i.e., later-life phenotypes perform best when early-life and later-life environments are similar) and later stressor resilience (i.e., poor early-life environments allow later-life phenotypes to perform well in poor environments) were beneficial for the equilibrium population when early-life environments were frequently poor, potentially due to the importance of adult survival for the equilibrium population. Overall, these simulations indicated that variation in experiential legacies across populations could be due to combinations of life history characteristics and frequencies of specific environmental conditions in early and later life. My results at the individual, cohort, and population level demonstrate how exploring experiential legacies can provide a deeper understanding of population patterns. Across species, experiential legacies may be related to how energy is allocated in early life (Chapter 2). Within Lake Erie Walleye, I observed that early-life nutritional conditions continued to affect juvenile Walleye sizes after nutritional conditions became standardized, supporting the idea of early-life energy allocation driving later performance (Chapter 3). Despite these results in young Walleye, the early-life growth environment did not appear to be the most important factor driving later cohort-based Walleye growth, potentially due to compensatory growth maintaining stable size-at-age and maternal provisioning legacies (Chapter 4). Regardless of the experiential legacy that Lake Erie Walleye or other species experience, the early-life environment appears to be extremely influential in driving population growth; however, certain experiential legacies may be more common in specific environmental scenarios for species with specific life histories due to the potential advantages those experiential legacies provide (Chapter 5). While many questions remain, my research has improved our understanding of patterns and implications of experiential legacies in general, as well as the degree to which legacies of early life influence the response of Lake Erie Walleye to its environment.

Download or read book Canadian Journal of Fisheries and Aquatic Sciences written by and published by . This book was released on 2011-05 with total page 804 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Comprehensive Dissertation Index written by and published by . This book was released on 1989 with total page 752 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dissertation Abstracts International written by and published by . This book was released on 1991 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book American Doctoral Dissertations written by and published by . This book was released on 1983 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ecology of Fresh Waters written by Brian R. Moss and published by John Wiley & Sons. This book was released on 2009-07-15 with total page 579 pages. Available in PDF, EPUB and Kindle. Book excerpt: This established textbook continues to provide a comprehensive andstimulating introduction to rivers, lakes and wetlands, and waswritten as the basis for a complete course on freshwater ecology.Designed for undergraduate and early postgraduate students who wishto gain an overall view of this vast subject area, this accessibleguide to freshwater ecosystems and man's activities will also beinvaluable to anyone interested in the integrated management offreshwaters. The author maintains the tradition of clarity andconciseness set by previous editions, and the text is extensivelyillustrated with photographs and diagrams. Examples are drawn fromthe author's experience in many parts of the world. In this edition, the scientific content of the text has beenfully revised and updated. Emphasis has been placed on humanimpacts, and a completely new chapter has been added on the futureof freshwaters. Balanced and stimulating introduction to limnology. Successfully combines fundamental and applied aspects ofintegrated management of freshwaters, with strong emphasis on humanlinks. Completely revised and rewritten with a threefold increase inthe number of illustrations. New chapter on the future of freshwaters. Of interest to undergraduates, beginning postgraduates and anylimnologically interested reader.

Download or read book Identification of Larval Fishes of the Great Lakes Basin with Emphasis on the Lake Michigan Drainage written by Great Lakes Fishery Commission and published by . This book was released on 1982 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt: This manual for the identification of larval fishes of the Great Lakes basin with emphasis on the Lake Michigan drainage treats 24 families and 148 species. In addition to a key to the families, keys were constructed for selected species within some families. Species accounts include descriptions of adult ecology, reproductive biology, diagnostic characters and meristics. A description of the egg is given, as are morphometric, morphological and pigmentation characteristics of yolk-sac larvae, larvae and juveniles. Illustrations of yolk-sac larvae, larvae and juveniles have been included wherever possible and informative.

Download or read book Special Publication written by and published by . This book was released on 1995 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Zooplankton of the Great Lakes written by Mary D. Balcer and published by Univ of Wisconsin Press. This book was released on 1984 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: Researchers, instructors, and students will appreciate this compilation of detailed information on the crustacean zooplankton of the Great Lakes. The authors have gathered data from more than three hundred sources and organized into a useful laboratory manual. The taxonomic keys are easy to use, suitable for both classroom and laboratory identifications. Detailed line drawings are provided to help confirm the identification of the major species. Zoologists, limnologists, hydrobiologists, fish ecologists, and those who study or monitor water quality will welcome this dependable new identification tool. A concise summary of pertinent information on the ecology of these zooplankton is provided in the main body of the text. A check-list of all species reported from each of the Great Lakes and notes on the distribution and abundance of more than a hundred species were compiled from an extensive search of existing literature. In addition, the authors collected samples from several locations on Lake Superior, in order to provide information on the abundance and life histories of the major crustacean species.

Download or read book Biology and Ecology of Fishes written by James S. Diana and published by John Wiley & Sons. This book was released on 2023-06-08 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biology and Ecology of Fishes Immerse yourself in the world of fish ecology with the newest edition of this essential introduction The study of fish ecology has traditionally proceeded along two tracks: the first is more basic, concerned with the anatomy, physiology and theoretical ecology of fish, and the second is more practical, concerning itself with fish populations, management, and habitats. Many fish researchers have come to view this distinction as artificial, and to develop a new study of fish that combines both tracks in a single holistic approach. It has never been more critical for introductory textbooks to represent this combined study in order to prepare the next generation of fish biologists and fishery scientists. Biology and Ecology of Fishes meets this need with a textbook that incorporates both biology and population management. Beginning with a general introduction to aquatic life and ecosystems, this book covers anatomical, environmental, and ethological topics to give a thoroughly rounded view of its subject, promising to serve as the fundamental introduction to multidisciplinary fish studies. Readers of the third edition of Biology and Ecology of Fishes will also find: Detailed coverage of subjects including growth and bioenergetics, feeding and predation, mortality and recruitment and more Increased attention to stressors of fish populations and communities New and revised chapters that introduce quantitative methods and present emerging issues facing fish populations and communities Biology and Ecology of Fishes is a useful overview for advanced undergraduate and graduate students studying fish ecology or fishery biology, as well as a reference for researchers and professionals in fish ecology, fish population management, and related fields.

Download or read book Invasive Aquatic Species of Europe Distribution Impacts and Management written by Erkki Leppäkoski and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt: The global scale of alien species invasions is becoming more and more evident in the beginning ofthe new millennium. Though the problem ofbiological invasions became a rapidly growing research area, there are large gaps still, both geographically and the matically, to be filled in the near future. This book is the first attempt to provide an overall picture of aquatic species invasions in Europe. Its geographical scope stretches from Irish waters in the west to Volga River and the Caspian Sea in the east, and from Mediterranean in the south up to the Arctic coast of Europe. Not all parts of the continent could be equally covered, as in some countries species invasions are not studied yet. The book tends to represent the array of all major European aquatic systems on the broadest geographical and ecological scope possible from fully saline seas, semi-enclosed brackish water bodies and coastallagoons to freshwater lakes, major river systems and waterways. The key objectives include the present status and impacts caused by non-native aquatic species in European waters. Please note that lengthy species lists submitted for publication and additional informa tion were put on the Internet, as the electronical version of these tables benefits from computer assisted search for data (http://www. ku. lt/nemo/EuroAquaInvaders. htm). Altogether more than 100 scientists from 24 countries have joined to synthesize the available information on bioinvasions. However, the book does not claim to be fully comprehensive.

Download or read book Ecology and Animal Health written by Jeffrey M. Levengood and published by Baltic University Press. This book was released on 2012-10-28 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biology Management and Culture of Walleye and Sauger written by Bruce A. Barton and published by . This book was released on 2011-01-01 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: