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Map of the risk of current fish habitat degradation of inland streams of the Central Midwest States.
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The Lahontan Cutthroat Trout (Oncorhynchus clarki henshawi) is native to the Lahontan basin of northern Nevada, northeastern California, and southeastern Oregon. Like other native trout species, the Lahontan Cutthroat Trout is found in a wide variety of cold-water habitats including large terminal alkaline lakes, alpine lakes, slow meandering rivers, montane rivers, and small headwater tributary streams. They currently occupy only about 10 percent of their historic range primarily due to habitat fragmentation from dams and water diversions, changes in water flow patterns, loss of riparian and aquatic habitat quality, severe drought conditions, and the introduction of non-native trout species. One population in Walker...
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The agricultural areas of the Mountain States have created a substantial drain on the water resources of this region. Northern Montana stands out as an area of very high risk for fish habitat degradation on the few streams and rivers in the area. This threatened area is principally comprised of row crops, such as wheat, barley, and alfalfa production, and cattle farms. Other areas of high risk of habitat degradation, such as southern Idaho and northeastern Colorado, correspond to areas with a high density of row crops, typically corn and wheat, cattle farms, alfalfa and potato (particularly in Idaho) production, and rangeland. Farms and ranches dependent on irrigation require large amounts of water diverted from...
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The Sonoran Desert is the only place in the world where Saguaro cacti grow. It can take up to 100 years for a Saguaro cactus to grow an arm in areas of low precipitation. The Sonoran Desert receives more rainfall than any other desert, which is approximately 10 inches (25 centimeters) a year on average. In the 1800s, many people used the Gila River as a trail across Arizona. This trail became known as the Gila Trail. Arizona is large enough to fit all of New England plus the State of Pennsylvania inside of it. Arizona is the only State besides Hawai'i that does not observe Daylight Savings time. Santa Fe, New Mexico, is the highest capital city in the United States at almost 7,200 feet (2,286 meters) above sea level....
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There are three designated megaregions in the Pacific Coast States: Southern California, with a population of 22.4 million; Northern California, with a population of 14.6 million; and Cascadia (from Vancouver, British Columbia to Eugene, Oregon), with a population of 8.4 million. These areas have enormous effects on both the inland and coastal aquatic habitats. Continual development increases areas of impervious surfaces (completely altering natural water flows and hydrology) and the amount of sewage discharge, sediments, and other pollutants associated with urbanization. Ever increasing urban water needs can be far reaching and affect systems and fish habitat far away from the urban areas. Los Angeles, which is...
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Michigan, Wisconsin, and Minnesota border four of the five Great Lakes (lakes Michigan, Superior, Huron, and Erie) and have over 150,000 miles of rivers and streams and 50,000 inland lakes within their boundaries. The upper Mississippi River flows through the Upper Midwest states, from its headwaters in Minnesota along the boundary between Minnesota and Wisconsin. Much of the region has deep glacial deposits which has a tremendous influence over the habitat types and water flow (hydrology), providing for some of the most stable river flows in the United States. An exception to the glaciated region is a unique region of deeply carved unglaciated river valleys known as “The Driftless Area” which located in southwestern...
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A. Pervasive disturbances: The most common disturbances based on total stream length in a given region. Top five overall most pervasive disturbances to all stream reaches, regardless of stream size and across all spatial scales (ranked highest first): Crop land use Low intensity urban land use Pasture and hay land use Impervious surface cover Population density Top three most pervasive disturbances to creeks (watersheds <100 km 2 in area) across all spatial scales: Crop land use Low intensity urban land use Pasture and hay land use Top three most pervasive disturbances to rivers (watersheds >100 km 2 in area) across all spatial scales : Crop land use Impervious surface cover Pasture and hay land use Top...
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Most of Alaska has an abundance of unaltered clean fresh water habitat that maintain remarkable self-sustaining fish populations requiring water flows in the proper amount at the right time. These habitats face an increasing number of demands. New hydroelectric projects, such as the recently proposed Susitna-Watana Hydroelectric Project, and the expansion of existing projects can, if not very carefully sited and designed, increase barriers to fish migration and create adverse hydrologic and sediment effects on streams that provide critical spawning and rearing habitat for self-sustaining salmon populations. These potential barriers are not just an issue for fish but the entire ecosystem as everything from trees...
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Major cities, such as Detroit, Milwaukee, Minneapolis/St. Paul, and numerous smaller lakefront cities support a population of over 21 million people in the Upper Midwest area. Converting land to urban areas has reduced fish habitat through the filling of wetlands, altered rivers and streams to convey artificially-caused high-flow events through these areas, decreased the streams ability to meander, and has converted natural lake shorelines to bulkheads and seawalls. Many parcels of private land in the forested portions of this region: are being sold for development of subdivided vacation communities; have impoundments developed on free flowing streams to create “new” lakefront properties; and are seeing a rapid...
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While fish habitat was found to be generally to be at very low or low risk of degradation in this mostly arid western region of the United States, water availability (hydrology – a key fish habitat process and driver of fish habitat) could only be partly examined using the available datasets in this Assessment. The lack of information on the status of water flow in many basins has led them being overestimated in fish habitat quality, even if streams in these basins are actually dry most of year. Additionally, data availability for grazing intensity, another key landscape use, is also unavailable, and has also created situations where the Assessment overestimates habitat quality. Despite such absences, impairment...
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Forty-three percent of the surface area of Alaska is wetlands. On a state-wide basis, less than 2 percent of all wetlands have been developed. However, in many developing areas and communities, wetlands may be the only land type available for development. In urbanized and developed areas of Alaska, such as the Anchorage Bowl, it is estimated that over half of the wetlands have been lost to transportation corridor construction, utility installation, buildings, and other development projects. Wetland loss fragments habitat and disrupts migration of fish that use wetlands as resting places on their lengthy migrations, and it is also critical rearing habitat for young salmon. Wetland loss is also linked to altered native...
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Partnerships - Atlantic Coastal Fish Habitat Partnership, Reservoir Fish Habitat Partnership, and Southeast Aquatic Resources Partnership Almost 10,000 ft (over 15,000 plantings) of native mangrove and salt marsh plants, as well as oyster shells were put in the Atlantic-side estuaries of Florida. These plantings helped to stabilize sediment and shoreline, improve water clarity, provide nesting areas for birds such as the Roseate Spoonbill, and provide habitat for species such as Red Drum, Tarpon, Mangrove Snapper, and snook. In addition, five acres of invasive Brazilian pepper trees were removed to allow for native plantings. Fish Habitat Partnerships provided funding for: the creation of 750 acres of wetland,...
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Urban areas significantly and negatively affect aquatic habitat quality in the Mountain States. This was particularly apparent in the rapidly growing Denver/Ft. Collins, Boise, Salt Lake City, Great Falls, and Billings areas. Highway corridors along Interstates 25 and 90 in Wyoming and 76 in Colorado were implicated to be causing high to very high risk factors. In 2015, the highly urbanized I-25 corridor between Cheyenne, WY and Pueblo, CO had a population of 4.49 million people. In these cities and their surrounding suburbs, large areas of impervious surfaces (i.e. buildings, parking lots, and roads) replace natural streamside habitat, increase pollution and sedimentation, alter hydrology, and increase the demand...
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A greater percentage of Alaskan residents fish (53 percent in 2011) than residents of any other State. Alaska’s largest private sector employer is commercial fishing with total annual landings of fish products of 79 billion pounds (36 million metric tons). Nearly all of these fish are from self-sustaining populations. In 1867, the United States Secretary of State William H. Seward offered Russia $7,200,000, or two cents per acre, for Alaska. The State of Rhode Island could fit into Alaska 425 times. Most of America's salmon, crab, halibut, and herring come from Alaska. The State's coastline extends more than 6,600 miles. Alaska is the largest State in the United States and is more than twice the size of Texas.
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A major hub for manufacturing and transportation, the Great Lakes and their tributaries were once an easy dump site for their waste products that included organic toxins, mercury, PCBs, and dioxins. As a result of the Federal Clean Water Act (1972) most of the direct pollution discharges from known point sources have stopped, but the legacy pollutants remain because many are trapped in lake and stream sediments. Other dissolved pollutants have long residence times because less than one percent of the water in the Great Lakes exits the lake system annually. Discharge from sewage treatment systems remains a problem, particularly where stormwater and sewage systems are combined in large urban areas. The inland fish...
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A significant number of dams are located in Iowa (> 4,000), Illinois (> 1,759), Indiana (> 1,088) and Ohio (> 2,600). Dams in the Central Midwest were built to provide mechanical power for mills, hydropower, recreation, water supplies, and water retention for urban and agricultural use. Nearly all of these dams impede fish movements in the region and particularly in the Mississippi River drainage and in the watershed of lakes Erie and Michigan. Some communities are removing dams to deal with obsolete infrastructure issues and to improve water quality, flow, and stream connectivity. For example, the removal of Black Berry Creek Dam near Aurora, Illinois in 2013 opened up 32 miles of the Fox River for fish spawning...
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The saltwater triggerfish, humuhumunukunukuapua'a, is Hawaii's State fish and is well known for its long name. Hawaii is the only State in the United States with a tropical rain forest. Hawaii is the most isolated population center on the face of the earth. Hawaii is 2,390 miles (3,846 kilometers) from California; 3,850 miles (6,196 kilometers) from Japan; 4,900 miles (7,886 kilometers) from China; and 5,280 miles (8,497 kilometers) from the Philippines. The Waialua River is one of five navigable rivers in Hawaii. It drains off Waialeale Mountain, which averages 488 inches (1,240 centimeters) of rain per year and is considered the wettest spot on earth. Honolulu is the largest city in the world (it has the longest...
map background search result map search result map Central Midwest States - Risk of Current Fish Habitat Degradation Map Description of Urban Land Use as a Human Activity Affecting Fish Habitat in Pacific Coast States Description of Urban Land Use as a Human Activity Affecting Fish Habitat in Mountain States Habitat Trouble for Lahontan Cutthroat Trout in Southwestern States Description of Pollution as a Human Activity Affecting Fish Habitat in Upper Midwest States Summary of Scientific Findings for Upper Midwest States Central Mississippi River States - Risk of Current Fish Habitat Degradation Map Most Pervasive and Severe Disturbances for the Central Midwest States Description of Competing Freshwater Demands as a Human Activity Affecting Fish Habitat in Alaska Hawaii - Risk of Current Fish Habitat Degradation Map Summary of Scientific Findings for Mountain States Description of Urban Land Use as a Human Activity Affecting Fish Habitat in Alaska Facts About Hawai'i Facts About Alaska Description of Dams and Other Barriers as a Human Activity Affecting Fish Habitat in Central Midwest States Description of Urban Land Use as a Human Activity Affecting Fish Habitat in Upper Midwest States Southeast Atlantic States - Risk of Current Fish Habitat Degradation Map Description of Agriculture as a Human Activity Affecting Fish Habitat in Mountain States Facts About Southwestern States Fish Habitat Partnership Activities for the Eastern Gulf of Mexico States Southeast Atlantic States - Risk of Current Fish Habitat Degradation Map Central Midwest States - Risk of Current Fish Habitat Degradation Map Description of Dams and Other Barriers as a Human Activity Affecting Fish Habitat in Central Midwest States Central Mississippi River States - Risk of Current Fish Habitat Degradation Map Description of Pollution as a Human Activity Affecting Fish Habitat in Upper Midwest States Summary of Scientific Findings for Upper Midwest States Description of Urban Land Use as a Human Activity Affecting Fish Habitat in Upper Midwest States Fish Habitat Partnership Activities for the Eastern Gulf of Mexico States Description of Urban Land Use as a Human Activity Affecting Fish Habitat in Pacific Coast States Habitat Trouble for Lahontan Cutthroat Trout in Southwestern States Facts About Southwestern States Description of Urban Land Use as a Human Activity Affecting Fish Habitat in Mountain States Summary of Scientific Findings for Mountain States Description of Agriculture as a Human Activity Affecting Fish Habitat in Mountain States Hawaii - Risk of Current Fish Habitat Degradation Map Facts About Hawai'i Description of Competing Freshwater Demands as a Human Activity Affecting Fish Habitat in Alaska Description of Urban Land Use as a Human Activity Affecting Fish Habitat in Alaska Facts About Alaska