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The standardized NEFSC Spring Bottom Trawl Survey was initiated in 1968 and covered an area from Cape Hatteras, NC, to Nova Scotia, Canada, at depths >27m. Throughout the years, coverage has...
Search relevance: 1.00 | Views last month: 14 | Catalog Last Checked: August 03, 2026 at 02:34 AM -
The dataset consists of count data derived from a series of sonar images. The data are fish counts per image from 1) a computerized process to extract fish counts, and 2) three manual assessors....
Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: September 10, 2026 at 09:48 PM -
This dataset includes downwelling irradiance data collected at night on the water's surface and daytime attenuation through the water column. Spectrally specific irradiance values were collected...
Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: September 10, 2026 at 10:39 PM -
The standardized NEFSC Fall Bottom Trawl Survey was initiated in 1963 and covered an area from Hudson Canyon, NY to Nova Scotia, Canada. Throughout the years, coverage has extended as far south as...
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The Old Erie Canal has undergone sedimentation and aquatic growth that have restricted flow and diminished the aesthetic quality of the canal during the nearly 200 years since its construction....
Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: September 10, 2026 at 07:57 PM -
Physical measurements of suspended sediment were conducted by USGS field technicians using a D-95 sampler. Processing of the data included sediment concentration and grain size analysis, and was...
Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: September 10, 2026 at 07:40 PM -
The acoustic trawl database for Lynn Canals echo-trawl survey was conducted from 2001 to 2004 throughout southern Lynn Canal in southeast Alaska. Acoustic surveys were conducted one day per month...
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: August 02, 2026 at 11:57 PM -
This dataset includes exported hydroacoustic data (i.e., coordinates for acoustically detected fish targets, mean target strength of detected fish). The distance (m) from the water guns for each...
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 07:46 PM -
This document contains a feasibility assessment for salmon smolt characterization and analysis based on existing hydroacoustics data and probability of encounter model.
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 05:51 PM -
The Old Erie Canal has undergone sedimentation and aquatic growth that have restricted flow and diminished the aesthetic quality of the canal during the nearly 200 years since its construction....
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 10:36 PM -
One table, providing echointegration data of macrozooplankton from three regions of Prince William Sound, Alaska that typically contain foraging aggregations of humpback whales.
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 08:01 PM -
Physical measurements of suspended sediment were conducted by USGS field technicians using a D-95 sampler. Processing of the data included sediment concentration and grain size analysis, and was...
Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 07:40 PM -
This dataset consists of one table with Area Backscattering Coefficient (ABC) data from hydroacoustic transect surveys collected around two seabird nesting colonies on Gull and Chisik Islands in...
Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 08:03 PM -
This data release includes hydroacoustic transect data collected in 2021, 2022, 2023, and 2024 water years at multiple locations throughout four embayments. These locations are part of a discrete...
Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 10:00 PM -
The lack of information on what constitutes suitable habitat for native freshwater mussels can limit restoration efforts. While many species reside in soft substrates, species such as Cumberlandia...
Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 10:32 PM -
The standardized NEFSC Winter Bottom Trawl Survey was initiated in 1992 and covered offshore areas from the Mid-Atlantic to Georges Bank. Inshore strata were covered from 1992-2007 but were later...
Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: August 03, 2026 at 02:34 AM -
The Old Erie Canal has undergone sedimentation and aquatic growth that have restricted flow and diminished the aesthetic quality of the canal during the nearly 200 years since its construction....
Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 08:58 PM -
Data represent a comparison of herding techniques commonly used by natural resource agencies and the public to increase removal or harvest of invasive carp (i.e., Silver Carp) from U.S. waterways....
Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 09:16 PM -
The Old Erie Canal has undergone sedimentation and aquatic growth that have restricted flow and diminished the aesthetic quality of the canal during the nearly 200 years since its construction....
Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 08:02 PM -
This data release includes hydroacoustic data for the 2021 to 2022 water years at four stations. These stations are part of a discrete and continuous monitoring project in embayments on Long...
Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 08:39 PM
