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Author : United States. Congress. House. Committee on Merchant Marine and Fisheries
Publisher : Unknown
Page : 50 pages
File Size : 50,9 Mb
Release : 1951
Category : Fishes
ISBN : STANFORD:36105110643223
Author : United States. Congress. House. Committee on Merchant Marine and Fisheries. Subcommittee on Fisheries and Wildlife Conservation
Publisher : Unknown
Page : 90 pages
File Size : 52,7 Mb
Release : 1952
Category : Fishes
ISBN : STANFORD:36105110643215
Author : United States. Congress. House. Committee on Merchant Marine and Fisheries
Publisher : Unknown
Page : 44 pages
File Size : 40,8 Mb
Release : 1951
Category : Fishes
ISBN : LCCN:51060763
Author : Cory Brant
Publisher : University of Michigan Regional
Page : 215 pages
File Size : 52,7 Mb
Release : 2019
Category : History
ISBN : 9780472131563
A captivating look at an ecological terror and the cooperative effort that brought the Great Lakes back from the brink
Author : Leo F. Erkkila,Bernard R. Smith,Alberton L. McLain
Publisher : Unknown
Page : 38 pages
File Size : 41,7 Mb
Release : 1956
Category : Electricity
ISBN : UOM:39015086537308
Author : United States. Congress. House. Committee on Merchant Marine and Fisheries. Subcommittee on Oceanography, Great Lakes, and the Outer Continental Shelf
Publisher : Unknown
Page : 132 pages
File Size : 40,5 Mb
Release : 1991
Category : Nature
ISBN : LOC:00183655267
Author : Jeremy B.C. Jackson,Karen E. Alexander,Enric Sala
Publisher : Island Press
Page : 312 pages
File Size : 41,9 Mb
Release : 2012-06-22
Category : Nature
ISBN : 9781610910293
Shifting Baselines explores the real-world implications of a groundbreaking idea: we must understand the oceans of the past to protect the oceans of the future. In 1995, acclaimed marine biologist Daniel Pauly coined the term "shifting baselines" to describe a phenomenon of lowered expectations, in which each generation regards a progressively poorer natural world as normal. This seminal volume expands on Pauly's work, showing how skewed visions of the past have led to disastrous marine policies and why historical perspective is critical to revitalize fisheries and ecosystems. Edited by marine ecologists Jeremy Jackson and Enric Sala, and historian Karen Alexander, the book brings together knowledge from disparate disciplines to paint a more realistic picture of past fisheries. The authors use case studies on the cod fishery and the connection between sardine and anchovy populations, among others, to explain various methods for studying historic trends and the intricate relationships between species. Subsequent chapters offer recommendations about both specific research methods and effective management. This practical information is framed by inspiring essays by Carl Safina and Randy Olson on a personal experience of shifting baselines and the importance of human stories in describing this phenomenon to a broad public. While each contributor brings a different expertise to bear, all agree on the importance of historical perspective for effective fisheries management. Readers, from students to professionals, will benefit enormously from this informed hindsight.
Author : Dan Egan
Publisher : W. W. Norton & Company
Page : 384 pages
File Size : 41,6 Mb
Release : 2017-03-07
Category : Science
ISBN : 9780393246445
New York Times Bestseller Winner of the Los Angeles Times Book Prize Winner of the J. Anthony Lukas Award "Nimbly splices together history, science, reporting and personal experiences into a taut and cautiously hopeful narrative.… Egan’s book is bursting with life (and yes, death)." —Robert Moor, New York Times Book Review The Great Lakes—Erie, Huron, Michigan, Ontario, and Superior—hold 20 percent of the world’s supply of surface fresh water and provide sustenance, work, and recreation for tens of millions of Americans. But they are under threat as never before, and their problems are spreading across the continent. The Death and Life of the Great Lakes is prize-winning reporter Dan Egan’s compulsively readable portrait of an ecological catastrophe happening right before our eyes, blending the epic story of the lakes with an examination of the perils they face and the ways we can restore and preserve them for generations to come.
Author : Margaret F. Docker
Publisher : Springer
Page : 577 pages
File Size : 42,8 Mb
Release : 2019-06-03
Category : Science
ISBN : 9789402416848
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 : United States. Congress. Senate. Appropriations Committee
Publisher : Unknown
Page : 1514 pages
File Size : 42,7 Mb
Release : 1951
Category : Electronic
ISBN : STANFORD:36105045116535
Author : M. W. Hardisty,I. C. Potter
Publisher : Unknown
Page : 492 pages
File Size : 49,8 Mb
Release : 1971
Category : Agnatha
ISBN : UOM:39076006434216
Author : United States. Congress. Senate. Committee on Appropriations
Publisher : Unknown
Page : 1472 pages
File Size : 40,9 Mb
Release : 1951
Category : United States
ISBN : LOC:00187002904
Author : Shari Lea Dann,Brandon C. Schroeder
Publisher : Unknown
Page : 64 pages
File Size : 41,8 Mb
Release : 2003
Category : Technology & Engineering
ISBN : UOM:39015071185600
Author : U.S. Fish and Wildlife Service
Publisher : Unknown
Page : 88 pages
File Size : 55,9 Mb
Release : 2024-06-23
Category : Electronic
ISBN : STANFORD:36105127859879
Author : Mark P. Ebener,Everett Louis King,Thomas A. Edsall
Publisher : Unknown
Page : 36 pages
File Size : 43,7 Mb
Release : 2006
Category : Fishery management
ISBN : CORNELL:31924104016716
This document augments the dichotomous key crated by Ebener et al. (2003) with photographs taken during the 2002 and 2003 workshops, and it is intended to help fishery agencies implement the King and Edsall (1979) protocol for classifying sea lamprey marks. Their illustrations represented the "idealized" types and stages of sea lamprey marks in comparison with the more complicated marks often observed in the field. We combined the original King and Edsall (1979) photographic illustrations with photographs made at the five workshops to create this sequel to the 1979 field guide.