Synopsis of Biological Data on the Grass Carp, Ctenopharyngodon Idella (Cuvier and Valenciennes, 1844) PDF Download

Author: J. V. Shireman
Publisher: Food & Agriculture Org.
ISBN: 9789251013595
Category : Pets
Languages : en
Pages : 96

View

Book Description

Author: Reuben P. Keller
Publisher: University of Chicago Press
ISBN: 022616618X
Category : Nature
Languages : en
Pages : 427

View

Book Description
Global trade and the spread of human populations have increasingly moved thousands of native animal and plant species across the natural barriers that have kept them ecologically separated for millions of years. Because some of them thrive in their new regions and harm the environment, the economy, and human health, the prevention and management of such invasive species has become a major local, national, and international policy initiative. Yet even though ecologists have been studying the negative (and sometimes positive) environmental impacts of invasive species and trying to curb their proliferation, and even though their work has in some cases stimulated public conversation and policy, politicians have generally ignored their recommendations. As a result, ecologists have achieved limited success in slowing the spread of invasives. They ve been realizing that in order to fully characterize the impacts of these species, they need to engage with other relevant disciplines across the social and legal sciences as well as the humanities. Drawing together a wide variety of ecologists, historians, economists, legal scholars, policymakers, and communication scholars, Invasive Species in a Globalized World aims to facilitate a dialogue among these various disciplines in order to fully understand invasives and stop their spread. Addressing the numerous challenges associated with reducing invasive impacts, the contributors provide direct policy recommendations, strategies for communicating the risks of invasive species, and insight into how public discourse drives our response to these risks."

Author: C. J. J. Richter
Publisher: Bernan Press(PA)
ISBN:
Category : Science
Languages : en
Pages : 278

View

Book Description
Werkdocumenten en presentatieposters van een symposium over de fysiologie van de voortplanting bij vissen. Hoofdstukken over: gonadotrophinen (stoffen die de ontwikkeling van de gonaden - de organen die zaadcellen en eicellen leveren - bevorderen), de verhouding tussen hypofyse en hypothalamus (organen die voortplantingshormonen leveren), kunstmatige beinvloeding van het geslacht, feromonen, bewaring van eicellen en zaadcellen, groei en rijping van gonaden en de invloed van milieufaktoren.

Author: Andrew Reeves
Publisher: ECW Press
ISBN: 1773053353
Category : Science
Languages : en
Pages : 272

View

Book Description
Intelligent investigative writing meets experiential journalism in this important look at one of North America’s most voraciously invasive species Politicians, ecologists, and government wildlife officials are fighting a desperate rearguard action to halt the onward reach of Asian Carp, four troublesome fish now within a handful of miles from entering Lake Michigan. From aquaculture farms in Arkansas to the bayous of Louisiana; from marshlands in Indiana to labs in Minnesota; and from the Illinois River to the streets of Chicago where the last line of defense has been laid to keep Asian carp from reaching the Great Lakes, Overrun takes us on a firsthand journey into the heart of a crisis. Along the way, environmental journalist Andrew Reeves discovers that saving the Great Lakes is only half the challenge. The other is a radical scientific and political shift to rethink how we can bring back our degraded and ignored rivers and waterways and reconsider how we create equilibrium in a shrinking world. With writing that is both urgent and wildly entertaining, Andrew Reeves traces the carp’s explosive spread throughout North America from an unknown import meant to tackle invasive water weeds to a continental scourge that bulldozes through everything in its path.

Author:
Publisher:
ISBN:
Category : Aquatic weeds
Languages : en
Pages : 460

View

Book Description

Author: Ray Dinges
Publisher: Van Nostrand Reinhold Company
ISBN: 9780442201661
Category : Technology & Engineering
Languages : en
Pages : 280

View

Book Description

Author: M. H. Julien
Publisher: Oxford University Press, USA
ISBN:
Category : Gardening
Languages : en
Pages : 244

View

Book Description
Each entry details the target weed, control agent, year of first release, country of origin of agent, status and degree of control, research organisation involved, and key references. The catalogue format has been modified slightly from earlier editions to improve ease of use. The book provides an invaluable means of keeping track of the world situation, and is a handy reference for professionals, research workers and students interested in the biological control of weeds.

Author: Walter R. Courtenay
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 456

View

Book Description
Involvement of the American Fisheries Society with exotic species; Colonization theory relative to introduced populations; International transfers of inland fish species; Distribution of exotic fishes in the continental United States; Introduction to exotic fishes into Canada; Distribution and known impacts of exotic fishes in Mexico; Exotic fishes in Hawaii and other islands of Oceania; Exotic fishes in Puerto Rico; Introductions of exotic fishes in Australia; Exotic fishes: the New Zealand experience; Bacteria, parasites, and viruses of aquarium fish and their shipping waters; Some parasites of exotic fishes; Exotic fishes in warmwater aquaculture; Control of aquatic weeds with exotic fishes; Exotic fishes and sport fishing; Known impacts of exotic fishes in the continental United States; Toward the development of an environmental ethic for exotic fishes; A suggested protocol for evaluating proposed exotic fish introductions in the United States.

Author: William A. Dill
Publisher:
ISBN: 9789251029992
Category : Fisheries
Languages : en
Pages : 492

View

Book Description

Author: Andrew C. Miller
Publisher:
ISBN:
Category : Aquatic biology
Languages : en
Pages : 142

View

Book Description