Author: U.S. Fish and Wildlife ServicePublisher:
ISBN:
Category : Fish culture
Languages : en
Pages : 904
Book Description
The Progressive Fish Culturist
Author: U.S. Fish and Wildlife ServicePublisher:
ISBN:
Category : Fish culture
Languages : en
Pages : 904
Book Description
The Progressive Fish-culturist
Author: The National Union Catalogs, 1963-
Author: Commercial Fisheries Review
Author: Lampreys: Biology, Conservation and Control
Author: Margaret F. DockerPublisher: Springer
ISBN: 9402416846
Category : Science
Languages : en
Pages : 590
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.
Sea Lamprey Control on the Great Lakes, 1953 and 1954
Author: Leo F. ErkkilaPublisher:
ISBN:
Category : Electricity
Languages : en
Pages : 38
Book Description
Great Lakes Sea Lamprey
Author: Cory BrantPublisher: University of Michigan Press
ISBN: 0472126032
Category : Nature
Languages : en
Pages : 215
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.
The Life of Isle Royale
Author: Napier SheltonPublisher:
ISBN:
Category : Government publications
Languages : en
Pages : 156
Book Description
Ecology
Author: Charles J. KrebsPublisher: Benjamin-Cummings Publishing Company
ISBN: 9780321068798
Category : Science
Languages : en
Pages : 695
Book Description
This best-selling majors ecology book continues to present ecology as a series of problems for readers to critically analyze. No other text presents analytical, quantitative, and statistical ecological information in an equally accessible style. Reflecting the way ecologists actually practice, the book emphasizes the role of experiments in testing ecological ideas and discusses many contemporary and controversial problems related to distribution and abundance. Throughout the book, Krebs thoroughly explains the application of mathematical concepts in ecology while reinforcing these concepts with research references, examples, and interesting end-of-chapter review questions. Thoroughly updated with new examples and references, the book now features a new full-color design and is accompanied by an art CD-ROM for instructors. The field package also includes The Ecology Action Guide, a guide that encourages readers to be environmentally responsible citizens, and a subscription to The Ecology Place (www.ecologyplace.com), a web site and CD-ROM that enables users to become virtual field ecologists by performing experiments such as estimating the number of mice on an imaginary island or restoring prairie land in Iowa. For college instructors and students.
Sea Lamprey Spawning
Author: Howard A. LoebPublisher:
ISBN:
Category : Petromyzon marinus
Languages : en
Pages : 42
Book Description