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According to Presidential Executive Order 13112, an "invasive species" is defined as a species: 1) that is nonnative to the ecosystem under consideration, and 2) whose introduction causes or is likely to cause economic or environmental harm or harm to human health.
Nonnative species become invasive in a new environment when the natural predators, diseases, or other biological mechanisms that kept the species in check within its former habitat are missing in its new environment. Lacking this biological balance, the invading species effectively changes the biodiversity of a locale. This can often cause millions of dollars in damage to local economies.
Base data was taken from NHD
The NHD is a national framework for assigning reach addresses to water-related entities, such as industrial discharges, drinking water supplies, fish habitat areas, wild and scenic rivers. Reach addresses establish the locations of these entities relative to one another within the NHD surface water drainage network, much like addresses on streets. Once linked to the NHD by their reach addresses, the upstream/downstream relationships of these water-related entities--and any associated information about them--can be analyzed using software tools ranging from spreadsheets to geographic information systems (GIS). GIS can also be used to combine NHD-based network analysis with other data layers, such as soils, land use and population, to help understand and display their respective effects upon one another. Furthermore, because the NHD provides a nationally consistent framework for addressing and analysis, water-related information linked to reach addresses by one organization (national, state, local) can be shared with other organizations and easily integrated into many different types of applications to the benefit of all. |
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According to Presidential Executive Order 13112, an "invasive species" is defined as a species: 1) that is nonnative to the ecosystem under consideration, and 2) whose introduction causes or is likely to cause economic or environmental harm or harm to human health.
Nonnative species become invasive in a new environment when the natural predators, diseases, or other biological mechanisms that kept the species in check within its former habitat are missing in its new environment. Lacking this biological balance, the invading species effectively changes the biodiversity of a locale. This can often cause millions of dollars in damage to local economies.
Base data was taken from NHD
The NHD is a national framework for assigning reach addresses to water-related entities, such as industrial discharges, drinking water supplies, fish habitat areas, wild and scenic rivers. Reach addresses establish the locations of these entities relative to one another within the NHD surface water drainage network, much like addresses on streets. Once linked to the NHD by their reach addresses, the upstream/downstream relationships of these water-related entities--and any associated information about them--can be analyzed using software tools ranging from spreadsheets to geographic information systems (GIS). GIS can also be used to combine NHD-based network analysis with other data layers, such as soils, land use and population, to help understand and display their respective effects upon one another. Furthermore, because the NHD provides a nationally consistent framework for addressing and analysis, water-related information linked to reach addresses by one organization (national, state, local) can be shared with other organizations and easily integrated into many different types of applications to the benefit of all. |
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See dataset specific metadata., ADF&G |
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5000 |
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[] |
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<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Aquatic Nuisance Species Management Plan</SPAN></P><P><SPAN>In 2002, the Department of Fish and Game prepared a management plan to address the threat invasive species pose to the aquatic ecosystems of the state. The Alaska Aquatic Nuisance Species Management Plan (PDF 1,210 kB) was approved by the federal Aquatic Nuisance Species Task Force (ANSTF). Under Section 1204 of the Aquatic Nuisance Species Prevention and Control Act the ANSTF has provided limited funding to state’s with an approved plan.</SPAN></P><P><SPAN /></P><P><SPAN>The ANS management plan describes</SPAN></P><P><SPAN /></P><P><SPAN>Alaska’s history of invasion,</SPAN></P><P><SPAN>species considered to be the highest threat,</SPAN></P><P><SPAN>pathways for introduction</SPAN></P><P><SPAN>management actions to</SPAN></P><P><SPAN>prevent the introduction or spread of invasive species,</SPAN></P><P><SPAN>promote early detection and rapid response actions, and</SPAN></P><P><SPAN>control or eradicate invasive species.</SPAN></P><P><SPAN>Collaboration</SPAN></P><P><SPAN>The Department of Fish and Game (ADF&G) is responsible for management of fisheries, wildlife and habitats. ADF&G strives to protect native fish and wildlife and the habitats that support them from impacts imposed by invasive species. The Department of Natural Resources (DNR) has management responsibility for terrestrial and freshwater plants. As appropriate, the two agencies collaborate to safeguard Alaska ecosystems from aquatic invasive species. If you are seeking information about aquatic invasive plants, such as Elodea, please visit the DNR invasive plants website.</SPAN></P><P><SPAN /></P><P><SPAN>The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system. NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. This high-resolution NHD, generally developed at 1:24,000/1:12,000 scale, adds detail to the original 1:100,000-scale NHD. (Data for Alaska, Puerto Rico and the Virgin Islands was developed at high-resolution, not 1:100,000 scale.) Local resolution NHD is being developed where partners and data exist. The NHD contains reach codes for networked features, flow direction, names, and centerline representations for areal water bodies. Reaches are also defined on waterbodies and the approximate shorelines of the Great Lakes, the Atlantic and Pacific Oceans and the Gulf of Mexico. The NHD also incorporates the National Spatial Data Infrastructure framework criteria established by the Federal Geographic Data Committee.</SPAN></P></DIV></DIV></DIV> |
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<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Liability Statement and Limitations on Use</SPAN></P><P><SPAN>By using these data, the user agrees to all the conditions stated in the following paragraphs.</SPAN></P><P><SPAN /></P><P><SPAN>THE STATE OF ALASKA, DEPARTMENT OF FISH AND GAME, MAKES NO EXPRESS OR IMPLIED WARRANTIES (INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS) WITH RESPECT TO THE ACCURACY, CHARACTER, FUNCTION, OR CAPABILITIES OF THE DATA, SERVICES, OR PRODUCTS OR THEIR APPROPRIATENESS FOR ANY PARTICULAR PURPOSE. The Department of Fish and Game is not liable for any direct, incidental, indirect, special, compensatory, consequential or other damages suffered by the user or any other person or entity from the use of or failure of the data, services, or products even if the Department of Fish and Game has been advised of the possibility of such potential loss or damage. The entire risk as to the results of the use of the data, services, or products is assumed by the user.</SPAN></P><P><SPAN /></P><P><SPAN>Data may be subject to periodic change without prior notification. To ensure receipt of the most current information, please refer requests to the ADF&G Open Data website. Users may not reproduce or distribute these data without explicit consent of the Alaska Department of Fish and Game.</SPAN></P><P><SPAN /></P><P><SPAN>These data are provided for general visual reference and to aid users in generating various natural resource analyses and products. There are no constraints to accessing these data, other than the limitations or constraints associated with a specific dataset or set forth herein. It is strongly recommended that careful attention be paid to the contents of the metadata file associated with these data.</SPAN></P><P><SPAN>Any hardcopy or electronic products utilizing these data shall clearly indicate their source. If the user has modified the data in any way, the user must describe the modifications they have performed. The user agrees not to misrepresent these data, nor to imply that the Alaska Department of Fish and Game approved any changes they made.</SPAN></P><P><SPAN /></P><P><SPAN /></P><P><SPAN /></P><P><SPAN /></P></DIV></DIV></DIV> |
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| title:
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Prioritized_Lakes |
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| tags:
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["Hydrography","Lake","Pond","Reservoir","Northern Pike","Elodea","Invasive Species","Alaska"] |
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en-US |
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150000000 |
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