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Location Folder Show Tree ROOT ScienceBase Catalog Users Filters Date Types (for Date Range) Contacts (Less) David L Blodgett U.S. Geological Survey DOI Northeast Climate Adaptation Science Center GS ScienceBase Michelle Staudinger U.S. Geological Survey, WATER Amanda Davis Categories (Less) Data (2) Tag Types Place (5) Theme (1) Tags (with Scheme=None) migration (2) climate change (1) conterminous us (1) fish (1) phenology (1) View Results as: JSON ATOM CSV Browse Folder

Network Attributes for the Hi Res National Hydrography Dataset (NHD) based initial 3D Hydrography Program Network DISCLAIMER "These data are preliminary or provisional and are subject to revision. They are being provided to meet the need for timely best science. The data have not received final approval by the U.S. Geological Survey (USGS) and are provided on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from the authorized or unauthorized use of the data." See Full Metadata Here This dataset contains the initial 3D Hydrography Program (3DHP) flow network based on the final High Resolution National Hydrography Dataset (NHD) [data] [documentation] and a set of mainstem rivers [data] built on the Medium resolution NHDPlus Version 2 (NHDPlusV2). Two key pieces of... Categories: Data, Data Release - In Progress; Tags: Conterminous US, environment Massachusetts River Herring Daily Counts and Environmental data The timing of biological events in plants and animals, such as migration and reproduction, is shifting due to climate change. Anadromous fishes are particularly susceptible to these shifts, as they are subject to strong seasonal cycles when transitioning between marine and freshwater habitats to spawn. We used linear models to determine the extent of phenological shifts in adult alewife (Alosa pseudoharengus) as they migrated from ocean to freshwater environments during spring to spawn at 12 sites along the northeast U.S. We also evaluated broad-scale oceanic and atmospheric drivers that trigger their movements from offshore to inland habitats including sea surface temperature (SST), North Atlantic Oscillation index,... Categories: Data, Data Release - In Progress; Tags: Phenology, climate change, fish, migration, migration