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Miami, Tampa, Orlando, and Jacksonville rank in the top 50 largest cities in the nation by area. Atlanta and New Orleans are the only other top 50 cities in the Eastern Gulf States region. These four Florida urban centers anchor what is known as the Florida Megaregion, one of eleven recognized in the United States. New Orleans and Baton Rouge are part of the Gulf Coast Megaregion. The growing urban sprawl throughout the Gulf States leads to increasing areas of impervious surface, which results in altered water flows and more urban runoff that transports high levels of nutrients and pollution to aquatic resources. For example in central Mississippi, pathogens, litter/trash, nutrients, and pesticides from increasing...
The U.S. Geological Survey (USGS) Geology, Geophysics and Geochemistry Science Center (GGGSC) collaborated with the USGS Science Analytics and Synthesis (SAS) team to preserve and release a subset of magnetotelluric data from the San Andreas Fault in Loma Prieta, California. The San Andreas Fault data were collected by the Branch of Geophysics, a precursor to the now GGGSC, between 1989 and 1994. The magnetotelluric data selected for this preservation project were collected in 1989 and 1990 using USGS portable truck mounted systems that measure the distribution of electrical conductivity beneath the surface of the earth. Truck mounted systems of this era output data to 3.5” discs, from which data were recovered...
The U.S. Geological Survey (USGS) Geology, Geophysics and Geochemistry Science Center (GGGSC) collaborated with the USGS Science Analytics and Synthesis (SAS) team to preserve and release a subset of magnetotelluric data from the San Andreas Fault in Loma Prieta, California. The San Andreas Fault data were collected by the Branch of Geophysics, a precursor to the now GGGSC, between 1989 and 1994. The magnetotelluric data selected for this preservation project were collected in 1989 and 1990 using USGS portable truck mounted systems that measure the distribution of electrical conductivity beneath the surface of the earth. Truck mounted systems of this era output data to 3.5” discs, from which data were recovered...
Table displays native stream taxa included in the 2015 assessment.
Partnerships - Driftless Area Restoration Effort, Great Lakes Basin Fish Habitat Partnership, Ohio River Basin Fish Habitat Partnership, Reservoir Fisheries Habitat Partnership, and Fishers and Farmers Partnership Restored 738 acres of wetland and over 400 feet of stream habitat in Ohio. Removed 1 barrier in Iowa that reconnected 69 miles of stream habitat for Smallmouth Bass and many coolwater species. Restored 1750 feet of shoreline and added 100 feet of structure to lake shorelines in Illinois. Augmented three mussel populations on four Indiana rivers, giving two federally-endangered species a new foothold in the basin. Launched a basin-wide mussel initiative to identify and address stressors in quality streams...
The Delta Smelt (Crystallaria asprella) is only found in the Sacramento - San Joaquin River Delta in California and requires estuaries for juvenile and adult habitat along with the ability to migrate into tributary rivers to spawn in the spring. Declines of Delta Smelt can largely be attributed to the changes and fluctuations in flow of the estuarine ecosystem. Reduced flows resulting from water projects have resulted in saltwater intrusion into the Delta, which has reduced the amount of preferred habitat for spawning and nursery areas. When increased amounts of water are released by the water projects, larvae and adults become entrained and die, and both the fish themselves and the food they depend on are washed...
The Bull Trout (Salvelinus confluentus) is widely distributed within the region and occupies a variety of large lakes, small headwater streams and larger river systems. Of all the native salmonids in the Pacific Northwest, the Bull Trout generally has the most specific habitat requirements, which are often referred to as “the four Cs”: cold, clean, complex, and connected habitat. In November 1999, the U.S. Fish and Wildlife Service listed all Bull Trout populations within the lower 48 States of the United States as threatened pursuant to the Endangered Species Act. The U.S. Fish and Wildlife Service’s 2015 Bull Trout Recovery Plan lists historical habitat loss and fragmentation; interactions with nonnative species...
Partnerships - Eastern Brook Trout Joint Venture, Great Lakes Basin Fish Habitat Partnership and Atlantic Coastal Fish Habitat Partnership Almost 32 miles of streams and 260 acres of riparian habitat were rehabilitated to improve Eastern Brook Trout habitat. Nearly 800 feet of riverine bottom in Maine was restored to improve spawning habitat for diadromous fish. Two acres of oysters were installed in the Great Bay Estuary (310,000 spat) to stabilize sediments, improve water quality, and provide habitat for species such as river herring, Atlantic Tomcod, Winter Founder, and Striped Bass. Partners removed or improved 46 barriers, which allowed inland and diadromous fish to access an additional 108 miles of riverine...
The Greater Redhorse (Moxostoma valenciennesi) is sensitive to habitat changes, particularly excessive siltation, and pollution. Other threats include river channelization, alterations to flow regimes, dam construction, and removal of riverside vegetation. Barriers are especially problematic as this is a wide-ranging species that has different flow and habitat requirements for different stages of development.
The Chesapeake Logperch is native to Maryland and Pennsylvania; populations in Virginia have been extirpated. It requires rocky habitat in larger rivers and is listed as imperiled. This species has suffered from water quality and habitat degradation in the larger rivers in Mid-Atlantic States with mining, agriculture, and wastewater discharges, which causes elevated metal concentrations, suspended solids, nutrient loading, pH, and high oxygen demand in river waters.
The Columbia River is the fourth largest river by volume in North America, draining an area the size of France (670,000 square kilometers). There are 14 dams on the main stem of the Columbia River and more than 450 dams throughout the entire Columbia Basin. The dams on the Columbia River and its tributaries produce half of the electricity used in the Pacific Northwest. These dams have completely altered river habitat and significantly changed the river’s flow, water quality, and Pacific salmon spawning runs along with the survival of out-migrating smolts. By discharge, the Sacramento River is the second largest river on the west coast of the contiguous United States, after only the Columbia River, which has almost...
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Tags: 2015,
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Five National Fish Habitat Partnerships are working to protect intact and improve altered fish habitat in Alaska including: 1) Southeast Alaska Fish Habitat Partnership; 2) Matanuska-Susitna Basin Salmon Habitat Partnership; 3) Kenai Peninsula Fish Habitat Partnership; 4) Southwest Alaska Salmon Habitat Partnership; and 5) Western Native Trout Initiative. The results of some of their work includes: Removed 17 fish passage barriers on high priority salmon streams in the Anchorage area, opening 54 miles of upstream habitat and access to 604 acres of lakes, all critical rearing areas for Pacific salmon and other salmonids. Worked with partners and private landowners to voluntarily protect nearly 8,000 acres of...
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OGC WMS Service;
Tags: 2015,
Alaska,
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While this assessment has found that many of the inland streams were at a low or very low risk of degradation, some fish habitat disturbances, including water diversions, timber harvest practices, and intensity of livestock grazing in watersheds, could not be directly included in this assessment because national datasets of these disturbances and their component variables are unavailable. These disturbances are known to have major, negative effects on fish habitats in this region. Their absence from this assessment, along with absences of other disturbances, has likely produced an overestimation of habitat condition (quality) for some water bodies. These gaps need to be kept in mind while examining the results....
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OGC WMS Service;
Tags: 2015,
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RegionalSummary
The Guadalupe Bass (Micropterus treculii) is endemic to the spring-fed central Texas rivers and streams. This species is threatened by a number of factors that have contributed to its overall decline including decreased stream flows, habitat loss and degradation, and hybridization with non-native Smallmouth Bass.
The Central Mississippi River states contain the confluences of the Upper Mississippi River with the Ohio, Missouri, and Arkansas rivers. Alteration of these large rivers for transportation and flood control has substantially altered their ecological characteristics, eliminating natural floodplains, sandbars, and meanders, and impeding fish migration routes. Other major tributary rivers include the Tennessee, Cumberland, Kentucky, and Osage, all very large rivers in their own right. Large reservoirs are common in the landscape of this region and have increased recreational opportunities for sportfish as well as many other activities, but typically suffer from dissolved oxygen issues in both the reservoirs and in...
Partnerships - Driftless Area Restoration Effort, Great Lakes Basin Fish Habitat Partnership, Great Plains Fish Habitat Partnership, Midwest Glacial Lakes Partnership, Fishes and Farmers Partnership, and Reservoir Fisheries Habitat Partnership Partners removed: one barrier in Minnesota that increased fish passage to over 3 miles of streams; 12 barriers in Wisconsin that increased fish passage by 12 miles and reconnected 15 acres of wetlands to streams; and 13 barriers in Michigan that reconnected over 147 miles of streams. In Wisconsin, enhanced 13.0 stream miles for Brook Trout including tributary spawning habitat, 20.5 miles of mixed Brook/Brown Trout water, and 13.2 miles of stream for Brown Trout. Improved...
The Prairie Chub (Macrhybopsis australis) requires streams with gravel and rock bottoms and can live with high levels of dissolved salts that occur in intermittent streams in the upper Red River Basin, Texas. This Texas-listed species of special concern is potentially threatened by large-scale chloride removal planned for the upper Red River Basin that could drastically change the stream chemistry required by this unique fish species.
Runoff and other land-based pollution from large riverside cities such as Philadelphia, Pittsburgh, Wilmington, and Washington, DC, New York City, and surrounding suburban sprawl adversely affect fish habitats in the Delaware, Susquehanna, Ohio, Hudson,and Potomac River basins, as well as many smaller streams. A concentration of human population and impervious surfaces extends from northeastern New Jersey to southeastern Virginia and to the coastal areas of the Mid-Atlantic. For example, the 2015 assessment determined high degradation risk in streams along the I-95, I-81, and I-79 corridors. Urban development continues to spread, as rural land in the states of this region declined by 5.9 million acres from 1982...
Arctic Grayling (Thymallus arcticus) now inhabits less than 5 percent of its historic river range in the Mountain States. This species requires high-quality coldwater habitat with long, un-fragmented reaches. Historically, glacial relict river populations were found in the Upper Missouri River Basin with another now extinct population in the Midwest (Michigan). The Arctic Grayling has been affected by water withdrawals, barriers to movement, and habitat degradation. One of the last strongholds, the Big Hole River in Montana, was reduced to a trickle in the summers of the 1990s as a result of irrigation withdrawals. Recent cooperative efforts, which include better water management, have improved populations of Arctic...
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: 2015,
FishWithHabitatTrouble,
MountainRegion,
MountainStates
Map of the risk of current fish habitat degradation of inland streams of the Southwestern States.
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