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Author: Great Lakes Fishery Commission
Publisher:
ISBN:
Category : Fish culture
Languages : en
Pages : 94
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Book Description
Author: Great Lakes Fishery Commission
Publisher:
ISBN:
Category : Fish culture
Languages : en
Pages : 94
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Book Description
Author: Margaret F. Docker
Publisher: Springer
ISBN: 9402416846
Category : Science
Languages : en
Pages : 590
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Book Description
This book, published in two volumes, provides the most comprehensive review of lamprey biology since Hardisty and Potter’s “The Biology of Lampreys” published more than 30 years ago. This second volume offers a synthesis of topics related to the lamprey gonad (e.g., lamprey sex ratios, sex determination and sex differentiation, sexual maturation, and sex steroids), the artifical propagation of lampreys, post-metamorphic feeding and the evolution of alternative feeding and migratory types, the history and status of sea lamprey control in the Laurentian Great Lakes and Lake Champlain, and an overview of contributions of lamprey developmental studies for understanding vertebrate evolution.
Author: Herb Childress
Publisher: University of Chicago Press
ISBN: 022649683X
Category : Education
Languages : en
Pages : 224
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Book Description
Class ends. Students pack up and head back to their dorms. The professor, meanwhile, goes to her car . . . to catch a little sleep, and then eat a cheeseburger in her lap before driving across the city to a different university to teach another, wholly different class. All for a paycheck that, once prep and grading are factored in, barely reaches minimum wage. Welcome to the life of the mind in the gig economy. Over the past few decades, the job of college professor has been utterly transformed—for the worse. America’s colleges and universities were designed to serve students and create knowledge through the teaching, research, and stability that come with the longevity of tenured faculty, but higher education today is dominated by adjuncts. In 1975, only thirty percent of faculty held temporary or part-time positions. By 2011, as universities faced both a decrease in public support and ballooning administrative costs, that number topped fifty percent. Now, some surveys suggest that as many as seventy percent of American professors are working course-to-course, with few benefits, little to no security, and extremely low pay. In The Adjunct Underclass, Herb Childress draws on his own firsthand experience and that of other adjuncts to tell the story of how higher education reached this sorry state. Pinpointing numerous forces within and beyond higher ed that have driven this shift, he shows us the damage wrought by contingency, not only on the adjunct faculty themselves, but also on students, the permanent faculty and administration, and the nation. How can we say that we value higher education when we treat educators like desperate day laborers? Measured but passionate, rooted in facts but sure to shock, The Adjunct Underclass reveals the conflicting values, strangled resources, and competing goals that have fundamentally changed our idea of what college should be. This book is a call to arms for anyone who believes that strong colleges are vital to society.
Author: Candice Goucher
Publisher: Wayne State University Press
ISBN: 0814351557
Category : History
Languages : en
Pages : 259
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Book Description
Journey to the edges of the Great Lakes in this engaging history of picnicking, wilderness, and foodways. This stunning venture into the American picnic explores how innovation, exploitation, and the changing wilderness of Michigan's Upper Peninsula have shaped the experience of eating outdoors. From a photo of her grandmother picnicking in 1911, to the outdoor lunches of miners and loggers, to the picnics of vacationing celebrities like Henry Ford and Ernest Hemingway, author Candice Goucher opens an aperture into historic memories of picnics past to consider what the picnic sparks in our senses and to bring the borderlands of humans and nature into view. Through pictures, postcards, paintings, and recipes, Goucher traces the creation of a modern notion of wilderness as it emerged in the North American imagination and popular culture to navigate an entangled environmental and culinary history of the Upper Peninsula. Drawing on themes from Indigenous knowledge and the African American experience to labor activism and women's history, this tantalizing chronicle offers a taste of Americana, seasoned by the changing global forces of industrialization, transportation, immigration, tourism, war, and climate.
Author:
Publisher:
ISBN:
Category : Animals
Languages : en
Pages : 1064
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Book Description
Author: Walter Koelz
Publisher:
ISBN:
Category : Fishes
Languages : en
Pages : 382
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Book Description
Author: United States. Congress. Senate. Committee on Foreign Relations
Publisher:
ISBN:
Category : Fisheries
Languages : en
Pages : 88
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Book Description
Considers Great Lakes Fisheries Convention for Joint U.S.-Canadian Fisheries research and sea lamprey control.
Author:
Publisher:
ISBN:
Category : Fish habitat improvement
Languages : en
Pages : 342
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Book Description
Author: Cory Brant
Publisher: University of Michigan Press
ISBN: 0472126032
Category : Nature
Languages : en
Pages : 215
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Book Description
The stuff of nightmares in both their looks and the wounds inflicted on their victims, sea lampreys (Petromyzon marinus) are perhaps the deadliest invasive species to ever enter the Great Lakes. At the invasion’s apex in the mid-20th century, harvests of lake trout (Salvelinus namaycush), the lampreys’ preferred host fish in the Great Lakes, plummeted from peak annual catches of 15 million pounds to just a few hundred thousand pounds per year—a drop of 98% in only a few decades. Threatening the complete collapse of the fishery, the sea lamprey invasion triggered an environmental awakening in the region and prompted an international treaty that secured unprecedented cooperation across political boundaries to protect the Great Lakes. Fueled by a pioneering scientific spirit, the war on Great Lakes sea lampreys led to discoveries that are the backbone of the program that eventually brought the creature under control and still protects the largest freshwater ecosystem in the world to this day. Great Lakes Sea Lamprey draws on extensive interviews with individuals who experienced the invasion firsthand as well as a trove of unexplored archival materials to tell the incredible story of sea lamprey in the Great Lakes—what started the invasion, how it was halted, and what this history can teach us about the response to biological invaders in the present and future. Richly illustrated with color and black & white photographs, the book will interest readers concerned with the health of the Great Lakes, the history of the conservation movement, and the ongoing threat of invasive species.
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309082951
Category : Science
Languages : en
Pages : 449
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Book Description
The Clean Water Act (CWA) requires that wetlands be protected from degradation because of their important ecological functions including maintenance of high water quality and provision of fish and wildlife habitat. However, this protection generally does not encompass riparian areasâ€"the lands bordering rivers and lakesâ€"even though they often provide the same functions as wetlands. Growing recognition of the similarities in wetland and riparian area functioning and the differences in their legal protection led the NRC in 1999 to undertake a study of riparian areas, which has culminated in Riparian Areas: Functioning and Strategies for Management. The report is intended to heighten awareness of riparian areas commensurate with their ecological and societal values. The primary conclusion is that, because riparian areas perform a disproportionate number of biological and physical functions on a unit area basis, restoration of riparian functions along America's waterbodies should be a national goal.
