Filters: Tags: DOLLY VARDEN (X)
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Existing occurrence point data from AK Department of Fish and Game (ADF&G) Alaska Freshwater Fish Inventory (AFFI) and Bureau of Land Management (BLM) for all five fish species. These data are provided by Bureau of Land Management (BLM) "as is" and may contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User's intended use. These data may not have the accuracy, resolution, completeness, timeliness, or other characteristics appropriate for applications that potential users of the data may contemplate. The User is encouraged to carefully consider the content of the metadata file associated...
Predicted current potential habitat Distribution of Dolly Varden. Current, near-term, long-term status of dolly varden based on landscape condition model. Predicted potential habitat Distribution of Dolly Varden and predicted change in mean annual ground temperature from 2010 to 2060. These data are provided by Bureau of Land Management (BLM) "as is" and may contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User's intended use. These data may not have the accuracy, resolution, completeness, timeliness, or other characteristics appropriate for applications that potential users of the data...
Pulsed subsidy events create ephemeral fluxes of hyper-abundant resources that can shape annual patterns of consumption and growth for recipient consumers. However, environmental conditions strongly affect local resource availability for much of the year, and can heavily impact consumer foraging and growth patterns prior to pulsed subsidy events. Thus, a consumer’s capacity to exploit pulse subsidy resources may be influenced by antecedent environmental conditions, but this has rarely been shown in nature and is unknown in aquatic ecosystems. We sampled fish at a high frequency (daily - weekly measurements) to examine the importance of hydrologic variation and a salmon pulse subsidy on the foraging patterns of two...
Categories: Data;
Tags: Coho Salmon,
Dolly Varden,
Fish foraging,
Southeast Alaska,
USGS Science Data Catalog (SDC),
Final distribution and status map for the aquatic fine filter Dolly Varden. These data are provided by Bureau of Land Management (BLM) "as is" and may contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User's intended use. These data may not have the accuracy, resolution, completeness, timeliness, or other characteristics appropriate for applications that potential users of the data may contemplate. The User is encouraged to carefully consider the content of the metadata file associated with these data. The BLM should be cited as the data source in any products derived from these data.
Dolly Varden are the most widely-distributed salmonid in Alaska and occupy most coastal waters in the state. Two forms or sub-species of Dolly Varden have been described in Alaska. The northern (S. m. malma) form is distributed from the Mackenzie River to the north side of the Alaska Peninsula while the southern form (S. m. lordi) is distributed on the south side of the Alaska Peninsula to the southern tip of Southeast Alaska, including Kodiak and the Aleutian Islands. The distribution of each form has changed in recent years with knowledge gained from genetic analysis. Both forms have anadromous and stream-resident forms but the lacustrine (lake dwelling) form is rare in the northern form but common in the southern...
Categories: Data;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Downloadable,
Map Service;
Tags: dolly varden,
western native trout initiative,
wnti
Region(s) of distribution of Dolly Varden (Salvelinus malma) (Walbaum, 1792) in the Arctic as digitized for U.S. Geological Survey Scientific Investigations Report 2016-5038. For details on the project and purpose, see the report at https://doi.org/10.3133/sir20165038. Complete metadata for the collection of species datasets is in the metadata document "Dataset_for_Alaska_Marine_Fish_Ecology_Catalog.xml" at https://doi.org/10.5066/F7M61HD7. Source(s) for this digitized data layer are listed in the metadata Process Steps section. Note that the original source may show an extended area; some datasets were limited to the published map boundary. Distributions of marine fishes are shown in adjacent Arctic seas where...
Categories: Data;
Types: Citation,
Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: (Walbaum, 1792),
Alaska,
Arctic,
Arctic,
Beaufort Sea,
USGS Historical Quadrangle in GeoPDF.
This map shows the modeled current and long-term future resident Dolly Varden habitat and anadromous Dolly Varden habitat (general and spawning) in the CYR study area. These data are provided by Bureau of Land Management (BLM) "as is" and may contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User's intended use. These data may not have the accuracy, resolution, completeness, timeliness, or other characteristics appropriate for applications that potential users of the data may contemplate. The User is encouraged to carefully consider the content of the metadata file associated with these...
This dataset contains length, weight, energy density, and isotope values of fish collected in northwest Alaskan rivers during summer and fall 2015-2019.
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