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This ScienceBase item provides the queries and code that identifies components and organization of the detailed methodology for the 2015 Assessment of Streams in Hawaii.
1 year of maintenance (Oct 1, 2014 – Sept 30, 2015) of Maintenance For 4 CPAs in the SE (SE Region CPA, South Atlantic LCC CPA, Pennisular Florida CPA, Gulf Coastal Plains and Ozarks CPA).3 years of maintenance (Oct 1, 2015 – Sept 30, 2018) of Maintenance For 2 CPAs in the SE (SE Region CPA and the South Atlantic LCC CPA) Maintain the functionality of the South Atlantic LCC Conservation Planning Atlas and Southeast Region Conservation Planning Atlas developed using the Data Basin platform. These linked Conservation Planning Atlases (CPAs) allow administrators and users of these southeastern CPA gateways to consolidate spatial information for public outreach and internal use, and include private and public group...
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Most severe disturbances in the Central Mississippi River States associated with stream reaches being scored as having high or very high risk of habitat degradation. Disturbances are grouped into large groups (fragmentation by dams; nutrient and sediment pollution; human population; road length and crossings; water withdrawals; urban land use; agricultural land use; mines and impervious surface cover) within the four spatial scales (local catchment, network catchment, local buffer, and network buffer). Only disturbance groups that have greater than 5% of stream length in a given category are represented in this figure. Note that not all disturbance categories are available for each spatial scale; buffers have only...
Tags: 2015, Figure
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The Westslope Cutthroat Trout (Oncorhynchus clarkii lewisi) is a subspecies of Cutthroat Trout that requires high quality coldwater fish habitat along with connected river segments. It has been in decline because of habitat degradation from logging, road building, overgrazing, mining, urban development, agriculture and dams, and competition and hybridization from introduced non-native trout species. Intensive habitat restoration efforts are underway to improve populations of this important species. In addition, restrictive harvest regulation strategies have been passed as this species is very vulnerable to angling.
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Partnership – Southeast Aquatic Resources Partnership The Guadalupe Bass ( Micropterus treculii) is the Texas state fish, endemic to central Texas, and an economically important stream sport fish. It is also listed as threatened due to habitat degradation, stream flow alteration, and hybridization with non-native Smallmouth Bass stocked in the 1970’s and 80’s. The headwaters of the Blanco River bubble up from springs near the city of Blanco in the Texas Hill Country. Historically this river was home to a good population of Guadalupe Bass, but recent surveys found only Guadalupe/Smallmouth Bass hybrids. It was thought efforts to remove Smallmouth Bass were impractical. However, in 2011 during the height...
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Partnerships - California Fish Passage Forum, Pacific Marine and Estuarine Fish Habitat Partnership, Western Native Trout Initiative, and Desert Fish Habitat Partnership Partnerships supported the removal of 59 barriers that reconnected 114 miles of native trout habitat and 14.5 miles of coastal streams to be used by threatened and endangered anadromous species. Funded estuarine restoration of 500 acres in Washington and 519 acres in Oregon. Sponsored the installation of one barrier to protect native trout from introduced species. Partnerships funded 24 population assessments of inland stream native trout species and three assessments of fish assemblages in habitats of Coos estuary, Oregon. Assessments provide...
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Integrating data into a spatial framework After acquiring data, variables were attributed to a national stream coverage for use in assessment following Wang et al. (2011). The National Hydrography Dataset Version 1 (NHDV1) is a 1:100,000 scale representation of streams from throughout the conterminous United States. The NHDV1 identifies stream reaches as sections of streams occurring between confluences (Figure 2). We attributed all data to stream reaches (i.e., fish data, fragmentation metrics by dams) or to local catchments and 90m buffers draining to stream reaches (i.e., human land uses, mining activities, impervious surfaces, etc.). Local catchments (watersheds) and buffers are the land areas draining directly...
Tags: 2015, CONUS, Method
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Most severe disturbances in the Southwestern States associated with stream reaches being scored as having high or very high risk of habitat degradation. Disturbances are grouped into large groups (fragmentation by dams; nutrient and sediment pollution; human population; road length and crossings; water withdrawals; urban land use; agricultural land use; mines and impervious surface cover) within the four spatial scales (local catchment, network catchment, local buffer, and network buffer). Only disturbance groups that have greater than 5% of stream length in a given category are represented in this figure. Note that not all disturbance categories are available for each spatial scale; buffers have only urban land...
Tags: 2015, Figure
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Spatial scales to which data were attributed for Hawaii inland stream assessment. Units include local catchments (A), network catchments (B), and downstream main channel catchments (C).
Tags: 2015, Figure, Hawaii
Identifying disturbances to fish habitat The approach for identifying disturbances to fish habitat was based on the assumption that greater intensities and types of human landscape disturbances would most likely lead to more disturbed stream fish habitat (e.g., Danz et al. 2007, Esselman et al. 2011). Twenty-two human landscape variables were identified for the Alaska assessment, with 21 variables used in the southeast and 19 in greater Alaska. We grouped variables into six sub-indices representing specific types of disturbances including: urban land use, agricultural land use, stream fragmentation, point source pollution, infrastructure, and active mines. Each sub-index of disturbance was represented by 2 to...
Tags: 2015, Alaska, Method
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Integrating data into a spatial framework Greater Alaska For most of Alaska excluding the southeast portion of the state, watershed boundaries for individual stream reaches were unavailable, and the highest resolution spatial units available for assessment were 12-digit USGS hydrological units (HUC-12s). Greater Alaska includes 12,824 HUC-12s that partially follow watershed boundaries; however, boundaries are also intended to capture roughly similarly-sized regions vs. entire upstream landscape areas draining to streams (Figure 11). After acquiring data, variables were attributed to HUC-12s for the greater Alaska assessment. Southeast Alaska For the southeast portion of Alaska, watersheds were delineated from...
Tags: 2015, Alaska, Method
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The Checkered Madtom (Noturus flavater) is found in moderate to high gradient, clear, small to medium rivers with strong flow and uses deeper, quiet pools or backwaters of these streams. This type of habitat has been eliminated from part of its former range in the White River, Arkansas, due to dam construction.
An urgent need exists to uniformly assess river corridors, including floodplains, and to prioritize areas for protection across the North Atlantic landscape. These are daunting tasks since there are no well-defined methods to delineate and assess scores of diverse river corridors in this region. The RiverSmart research group at UMass Amherst has made meaningful strides toward a uniform assessment of North Atlantic river corridors having assembled a task force of river specialists, analyzed ecologic and geomorphic threats, scrutinized the wide-ranging approaches to assess riparian habitats, and performed initial evaluations in diverse watersheds. In this project, we will build on this base. During the first year,...
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California’s Central Valley is a nexus for water resources in the state, draining the Sacramento and San Joaquin River watersheds. Urban centers, agricultural operations, and the environment all compete for limited water, and demand is expected to only increase as the population grows and agriculture intensifies. At the same time, the water supply is projected to decrease as temperatures rise, precipitation patterns change, and the frequency of extreme droughts increases. The Central Valley also provides critical wetland habitats to migratory waterbirds, and wetland managers require information on how to best use water resources to support wildlife objectives, particularly during drought. This project seeks to...


map background search result map search result map The Impact of Drought on Waterbirds and Their Wetland Habitats in California’s Central Valley Habitat Trouble for Westslope Cutthroat Trout in Mountain States Fish Habitat Partnership Activities for the Pacific Coast States Habitat Trouble for Checkered Madtom in Central Mississippi River States Maintenance for Conservation Planning Atlas The Impact of Drought on Waterbirds and Their Wetland Habitats in California’s Central Valley Habitat Trouble for Checkered Madtom in Central Mississippi River States Maintenance for Conservation Planning Atlas Fish Habitat Partnership Activities for the Pacific Coast States Habitat Trouble for Westslope Cutthroat Trout in Mountain States