Walleye
Walleye

Author: Paul J. Radomski

Publisher: U of Minnesota Press

Published: 2022-06-28

Total Pages: 369

ISBN-13: 1452967733

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Walleye, the holy grail of game fish: on catching them, understanding their biology and history, and ensuring their survival Among the more than 34,000 species of fish, few have the walleye’s following—among anglers and diners, states conferring official status on the fish, and towns battling for recognition as the Walleye Capital of the World. And among those passionate fans, few know the walleye as well as Paul J. Radomski does—a fisheries biologist, lake ecology scientist, and old fisherman. In Walleye: A Beautiful Fish of the Dark he unspools the mysteries of this fascinating fish. Radomski looks at walleye from every angle, with something to say to the curious naturalist, committed ecologist, and avid fishing enthusiast. People who view walleye as the “lion of the lakes” might be surprised to learn that rivers are their ancestral habitat. Some might wonder about the name “wall-eye,” a nod to an evolutionary adaptation to dark water environments. Others might simply ask: why walleye? What are they, where do they exist, how do they survive, and how have people come to depend on them? Radomski discusses the principles and pitfalls of managing this predator of the twilight (and the history and methods of doing so) and shares his informed perspective on when and where stocking is prudent. Finally, he explores three of the best walleye lakes: Winnebago, the largest inland walleye fishery in Wisconsin, and Mille Lacs and Red Lake in Minnesota. From the simple pleasures of fishing for walleye to the most pressing questions about how this species survives, this book is the best word on this beautiful fish of the dark.

Internal Phosphorus Loading in Lakes
Internal Phosphorus Loading in Lakes

Author: Bryan Spears

Publisher:

Published: 2020

Total Pages: 0

ISBN-13: 9781604278224

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Nutrient enrichment of lakes is a ubiquitous problem, impacting ecological and human health on a global scale by accelerating the pace of eutrophication, often resulting in algal blooms, depleted dissolved oxygen concentrations, and economic harm to surrounding communities. In many lakes, bed sediments are a major but unrecognized source of phosphorus to the water, a process known as internal phosphorus loading. Internal loading is notoriously difficult to measure and manage given the need to access processes operating on and within the lakebed. In addition, climate change threatens to promote internal loading. For example, warming of lakes can increase the release of phosphorus from sediments due to 1) longer and stronger periods of lake stratification resulting in sediment anoxia and 2) enhanced microbial decomposition of organic matter. Degraded water quality not only impairs ecological health but also can influence social pride and community morale. This is the first book dedicated to the understanding of internal phosphorus loading in lakes and examines the causes, the ecological and societal impacts, and options for managing this complex phenomenon. With contributions from leading experts, this edited volume provides a broad view of internal phosphorus loading, methods for measurement, management practices for water quality improvement, case studies from around the world, and recommendations for addressing this growing concern. It is essential reading for environmental and engineering professionals involved in lake and reservoir management, students and faculty in limnology, state and federal authorities involved in water quality regulation, and lakefront homeowners and management boards interested in maintaining lake water quality and managing algal blooms. Key Features * First-ever comprehensive volume on internal phosphorous loading that clearly details what it is and why it occurs * Identifies and explores the drivers of internal phosphorus loading * Provi

Methods for Measuring the Toxicity and Bioaccumulation of Sediment-associated Contaminants with Freshwater Invertebrates
Methods for Measuring the Toxicity and Bioaccumulation of Sediment-associated Contaminants with Freshwater Invertebrates

Author:

Publisher:

Published: 1994

Total Pages: 150

ISBN-13:

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Sediment contamination is a widespread environmental problem that can potentially pose a threat to a variety of aquatic ecosystems. The sediment test methods in this manual will be used by The United States Environmental Protection Agency (USEPA) to make decisions under a range of statutory authorities concerning such issues as: dredged material disposal, registration of pesticides and toxic substances, superfound site assessment, and assessment and cleanup of hazardous waste treatment, storage, and disposal facilities. The use of uniform sediment testing procedures by USEPA programs is expected to increase data accuracy and precision, facilitate test replication, increase the comparative value of test results, and ultimately, increase the efficiency of regulatory processes requiring sediment tests.