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Author : Anonim
Publisher : Unknown
Page : 14 pages
File Size : 54,5 Mb
Release : 2003
Category : Electronic
ISBN : MINN:31951D022344883
Author : Parks Canada
Publisher : Parks Canada
Page : 1 pages
File Size : 40,7 Mb
Release : 2002-01-01
Category : Fishery law and legislation
ISBN : 0662317904
Author : Anonim
Publisher : Unknown
Page : 2 pages
File Size : 54,5 Mb
Release : 2001
Category : Fishing
ISBN : MINN:31951D019897023
Author : Anonim
Publisher : Unknown
Page : 0 pages
File Size : 43,9 Mb
Release : 1988
Category : Fishing
ISBN : OCLC:793858801
Author : United States. National Park Service
Publisher : Unknown
Page : 1 pages
File Size : 44,8 Mb
Release : 1978
Category : Fishery law and legislation
ISBN : OCLC:698371720
Author : National Park Service
Publisher : Createspace Independent Publishing Platform
Page : 26 pages
File Size : 51,5 Mb
Release : 2016-01-21
Category : Electronic
ISBN : 1523454423
Angling for native fish is an important part of the park's cultural history. Fishing regulations in Yellowstone National Park are structured to strongly support native fish conservation goals. Cutthroat trout are the sole, native trout of the park and were the dominant fish species here prior to Euroamerican settlement. Cutthroat trout, Arctic grayling, mountain whitefish, and other native fishes are important to the ecology of Yellowstone. Introduced nonnative fish cause loss of native fish The number of waters where native fish are found and the abundance of native fish have been substantially reduced, mostly because of impacts by introduced nonnative fish, including brook, brown, lake, and rainbow trout. These nonnative species continue to contribute to the decline in the park's native fish population by competing for food and habitat, preying on native fish, and degrading the genetic integrity of native fish by mating with them and creating hybrids. Loss of native fish impacts park ecosystems Because cutthroat trout and Arctic grayling inhabit relatively shallow waters, many animals depend on them as a food source, especially during spring when the fish spawn in small lake inlets and tributary streams. In many cases, nonnative trout cannot serve as a substitute for cutthroat trout or Arctic grayling because they occupy different habitats. For example, nonnative lake trout live deep in Yellowstone Lake, do not spawn in streams, and are generally inaccessible to many of the park's native fish-eating animals such as bears, otters, and ospreys. A plan to preserve and restore native fish Yellowstone is making a substantial, on-the-ground effort to conserve native fish in several areas. These actions, which are currently focused in the Lamar and Grayling Creek drainages and Yellowstone Lake, are described in the park's native fish conservation plan. Goals of the plan are to reduce the risk of extinction, restore and maintain the ecological role, and create sustainable angling and viewing opportunities for native fish. Anglers assist with native species conservation The Native Trout Conservation Area (see pages 3 and 4) is a large region within the park where native cutthroat trout are actively being harmed by introduced nonnative fish. Angling is one way that the nonnative fish can be selectively removed from an area without damaging the native fishery. Within this area, anglers are strongly encouraged, and in some cases required, to harvest nonnative fish. Along with actions being taken by federal and state biologists and their partners, this harvest will help to save the native fish and the natural ecosystems they support.
Author : Anonim
Publisher : Unknown
Page : 684 pages
File Size : 51,6 Mb
Release : 1997
Category : Administrative law
ISBN : COLUMBIA:CU14245990
Author : Anonim
Publisher : Unknown
Page : 178 pages
File Size : 43,7 Mb
Release : 2024-05-27
Category : Administrative law
ISBN : STANFORD:36105110701120
Author : Anonim
Publisher : Unknown
Page : 128 pages
File Size : 46,9 Mb
Release : 2021
Category : Electronic
ISBN : OCLC:1295744319
Author : Anonim
Publisher : Unknown
Page : 1004 pages
File Size : 40,7 Mb
Release : 1994
Category : Game and game-birds
ISBN : WISC:89058822073
Author : Anonim
Publisher : Unknown
Page : 524 pages
File Size : 50,8 Mb
Release : 1939
Category : Game and game-birds
ISBN : UIUC:30112041704575
Author : Chuck Robbins
Publisher : Wilderness Adventures Press
Page : 474 pages
File Size : 52,9 Mb
Release : 2003-10
Category : Sports & Recreation
ISBN : 1932098011
The On The Fly Guide to the Northern Rockies distills a lifetime of exploration and experience into a guide that will help you successfully plan a trip to the prime waters of Idaho, Montana and Wyoming. Chuck Robbins has picked his favorite rivers and lakes; shares his wealth of insider information on how to fish these premier waters and the best time to fish them; his favorite fly for each water; along with his personal recommendations for great food and interesting places to stay; and many other tips. Book jacket.
Author : Robert B. Smith,Lee J. Siegel
Publisher : Oxford University Press
Page : 255 pages
File Size : 43,9 Mb
Release : 2000-05-25
Category : Science
ISBN : 9780195355604
Millions of years ago, the North American continent was dragged over the world's largest continental hotspot, a huge column of hot and molten rock rising from the Earth's interior that traced a 50-mile wide, 500-mile-long path northeastward across Idaho. Generating cataclysmic volcanic eruptions and large earthquakes, the hotspot helped lift the Yellowstone Plateau to more than 7,000 feet and pushed the northern Rockies to new heights, forming unusually large glaciers to carve the landscape. It also created the jewel of the U.S. national park system: Yellowstone. Meanwhile, forces stretching apart the western U.S. created the mountainous glory of Grand Teton National Park. These two parks, with their majestic mountains, dazzling geysers, and picturesque hot springs, are windows into the Earth's interior, revealing the violent power of the dynamic processes within. Smith and Siegel offer expert guidance through this awe-inspiring terrain, bringing to life the grandeur of these geologic phenomena as they reveal the forces that have shaped--and continue to shape--the greater Yellowstone-Teton region. Over seventy illustrations--including fifty-two in full color--illuminate the breathtaking beauty of the landscape, while two final chapters provide driving tours of the parks to help visitors enjoy and understand the regions wonders. Fascinating and informative, this book affords us a striking new perspective on Earth's creative forces.
Author : Margaret Mary Meagher
Publisher : Unknown
Page : 370 pages
File Size : 54,8 Mb
Release : 1970*
Category : American bison
ISBN : UCAL:C2788466
Author : Frank Tweedy
Publisher : Unknown
Page : 86 pages
File Size : 46,6 Mb
Release : 1886
Category : Botany
ISBN : COLUMBIA:CU64305856