AndreaBozzo/ceres-open-data-index huggingface dataset:
AFSC/RACE/GAP/McConnaughey: QTC View Study- 1997- Other

In early 1996, Quester Tangent Corporation (QTC) and the National Marine Fisheries Service (NMFS) Alaska Fisheries Science Center (in Seattle) formed a strategic alliance to apply QTC seabed classification technology to the problem of groundfish habitat descriptions. The Bering Sea supports about 300 fish species, many of which are demersal species. This stock supports sizeable fisheries, as indicated by landings at the Bering Sea port of Dutch Harbor in excess of 579 million pounds in 1996 and 678 million pounds in 1999 (the highest in the U.S.). By comparison, in 1981 the landing at Dutch Harbor was 73 million pounds. This rapid increase in catch highlights the need for effective management to ensure sustainability.  After connecting the QTC VIEW full waveform acquisition system (ISAH-S) to the Simrad EK-500 scientific echosounder on the NOAA ship Miller Freeman, over 9,000 miles of track line data were collected in the eastern Bering Sea between June and August 1999. The raw data consist of digital echo traces of the full water column and seabed substrate. They were collected at two frequencies, 38 kHz and 120 kHz. Based on an average rate of one ping recorded per second, approximately four million individual echoes at each frequency were obtained.
The data within this raster set represent the results of processing channel 38_12, which incorporated the 38 kHz frequency data, using a reference depth of 90 meters and stacks of 50 echoes to create a single classified data point through the PCA analysis.  A rasterized grid was created from each Q value and then grid stacked to allow RGB representation of each data point in continous Q- space as opposed to categorical class.

Tags: acoustic sediment classification, afsc/race/gap/mcconnaughey: qtc view study- 1997, alaska fisheries science center, bering sea, doc/noaa/nmfs/afsc, habitat mapping, national marine fisheries service, noaa, quester tangent, side scan sonar, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
AFSC/RACE/GAP/McConnaughey: Bristol Bay Reconnaissance Study-2002-Side scan sonar

Environmental variables that are ecologically relevant and easily measured over large areas are useful for modelling species distributions and habitats. Continuous acoustic, sonar-backscatter data convey information about physical properties of the seabed, and hence could be a valuable addition to that suite of variables. The potential utility of acoustic backscatter was tested for improving habitat models of marine species using data from a pilot sidescan-sonar survey conducted from 28 June to 3 July 2002 in the Bristol Bay region of the eastern Bering Sea (EBS). Raw digital backscatter data were processed with QTC SIDEVIEW and CLAMS software to objectively segment bedform based on statistical analysis of the echograms.  Resultant acoustic variables  - Q-values (Q1, Q2, and Q3)-, representing the first three principal components of the data derived from image analysis of backscatter echoes, and a complexity metric (compx) measuring the variance of Q-values in a geographic area - were used in multiple linear regression to model individual species abundance from bottom-trawl survey data.

Tags: acoustic sediment classification, afsc/race/gap/mcconnaughey: bristol bay reconnaissance study-2002, alaska fisheries science center, bering sea, doc/noaa/nmfs/afsc, grain size analysis, national marine fisheries service, noaa, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
AFSC/RACE/GAP/McConnaughey: Fishpac Projects-2012-SCS

The broad scope of the Essential Fish Habitat (EFH) mandate requires an efficient process for describing and mapping the habitat needs of federally managed species.  For example, research indicates surficial sediments affect the distribution and abundance of many groundfish species, yet traditional sampling with grabs and cores is impractical over areas as large as the Bering Sea shelf.  Acoustic tools are suitable for large-scale surveying and show great promise as a substitute for direct-sampling methods, but they have not been proven useful for EFH purposes.

Tags: acoustic sediment classification, afsc/race/gap/mcconnaughey: fishpac projects-2012, alaska fisheries science center, bering sea, doc/noaa/nmfs/afsc, grain size analysis, habitat mapping, multibeam echosounder, national marine fisheries service, noaa, side scan sonar, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
AFSC/RACE/GAP/Zimmermann: Cook Inlet Bathymetry Features

We assembled 1.4 million National Ocean Service (NOS) bathymetric soundings from 98 lead-line and single-beam echosounder hydrographic surveys conducted from 1910 to 1999 in Cook Inlet, Alaska. These bathymetry data are available from the National Geophysical Data Center (NGDC: http://www.ngdc.noaa.gov), which archives and distributes data that were originally collected by the NOS and others. While various bathymetry data have been downloaded previously from NGDC, compiled, and used for a variety of projects, our effort differed in that we compared and corrected the digital bathymetry by studying the original analog source documents - digital versions of the original survey maps, called smooth sheets. Our editing included deleting erroneous and superseded values, digitizing missing values, and properly aligning all data sets to a common, modern datum. There were six areas where these older surveys were superseded by compilations of reduced-resolution multibeam surveys. We digitized 12,000 features, such as rocky reefs, kelp beds, rocks and islets, adding them to what was originally available, and creating the most thorough source (n = 18,000) of these typically shallow, inshore features. We also digitized 2,418 km of the mainland and 529 km of island shoreline, generally at a resolution of 1:20,000, and digitized 9,271 verbal surficial sediment descriptions from the smooth sheets. The depth surface, shoreline, inshore features, and sediment data sets are mostly produced at a scale of 1:20,000.

Tags: alaska, alaska fisheries science center, bathymetry, cook inlet, doc/noaa/nmfs/afsc, groundfish assessment program, national marine fisheries service, noaa, north pacific ocean, point, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
AFSC/RACE/GAP/Palsson: Globe navigation data collected during the Gulf of Alaska and Aleutian Islands Biennial Bottom Trawl Survey

These data are haul positions and haul depths collected throughout the Gulf of Alaska and Aleutian Islands groundfish trawl surveys. 

Vessel positions are recorded using Globe software installed on a computer that is also connected to a real time Global Positioning System unit and depth sounder for depth data.The log files are in a binary GLOBE format that is proprietary.

Tags: alaska, alaska fisheries science center, doc/noaa/nmfs/afsc, groundfish assessment program, national marine fisheries service, noaa, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
AFSC/REFM: Community Profiles for North Pacific Fisheries, Alaska 2011

In 2005, the Alaska Fisheries Science Center (AFSC) compiled baseline socioeconomic information about 136 Alaska communities most involved in commercial fisheries. In 2010 and 2011, AFSC went through the process of evaluating the community profiles and determining how to update them. A NOAA Technical Memorandum finalized in October 2011 documents the process we are undertaking to update the Community Profiles for North Pacific Fisheries - Alaska (NOAA-TM-AFSC-230). In addition, the communities to be included in the updated document were reevaluated to ensure that communities with significant reliance on commercial, recreational and subsistence fishing are included. A total of 196 communities have been profiled. The new profiles add a significant amount of new information to help provide a better understanding of each community's reliance on fishing. Introductory materials cover purpose, methods, and an overview of the profiled communities in the larger context of the state of Alaska and North Pacific fisheries. The community profiles comprise additional information including, but not limited to, annual population fluctuation, fisheries-related infrastructure, community finances, natural resources, educational opportunities, fisheries revenue, shore-based processing plant narratives, landings and permits by species, and subsistence and recreational fishing participation, as well as information collected from communities in the Alaska Community Survey, which was implemented during summer 2011, and the Processor Profiles Survey, which was implemented in Fall 2011.

Tags: alaska, alaska fisheries science center, commercial fisheries, doc/noaa/nmfs/afsc, fisheries data, fishing communities, national marine fisheries service, noaa, social data, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
AFSC/RACE/GAP/McConnaughey: Pribilof Hydro-2009-Photos

The "add on" project area surveyed depths between the 27 and 175 meter depths around St. George Island and St Paul Island in the Central Bering Sea. Full bottom coverage, consisting of 100% multibeam data was achieved within the limits of hydrography for this survey. One hundred percent backscatter data was acquired and stored by TerraSond, Ltd to be processed by the client. The data were collected from the R/V Mount Mitchell by Terrasond, Inc using a Simrad EM710 multibeam echosounder.

Tags: afsc/race/gap/mcconnaughey: pribilof hydro-2009, alaska, alaska fisheries science center, bering sea, doc/noaa/nmfs/afsc, multibeam backscatter, national marine fisheries service, noaa, pribilof islands, seafloor habitat, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
AFSC/RACE/SAP:  Detailed Crab Data From NOAA Fisheries Service 2012 Chukchi Sea Bottom Trawl Surveys

This dataset contains detailed crab data collected from the 2012 NOAA/NMFS/AFSC/RACE crab-groundfish bottom trawl survey of the Chukchi Sea. 71 survey stations were successfully completed during the bottom trawl survey. The survey area extended north and east from the Bering Strait to Barrow Canyon, bounded to the west by the U.S.-Russia Maritime Boundary and east to the 10-m bathymetry limit along the Alaska coastline. Demersal populations were sampled by trawling at stations centered within 55.56 x 55.56 km (30 x 30 nautical miles) grid cells covering the survey area. 100% of the catch is sorted for commercially important crab species. Crabs are sorted by species and sex, and a sample is measured to the nearest millimeter to provide a size-frequency distribution (see note under use constraints for analyzing catches where crab were subsampled for measurement). Carapace width is measured for Tanner crabs, and carapace length is measured for king and hair crabs.

Tags: alaska, alaska fisheries science center, chukchi sea, doc/noaa/nmfs/afsc, fall, national marine fisheries service, noaa, shellfish assessment program, summer, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
AFSC/NMML: Cetacean Assessment and Ecology Program Humpback Whale Catalog

Since 1980, the Cetacean Assessment and Ecology Program of the National Marine Mammal Laboratory has been collecting photos of humpback whales (Megaptera novaeangliae) in Alaskan waters.  Photo-identification is a useful method to gain insight into stock structure, life history, habitat use and movements.  Some of the images were collected during humpback whale specific projects while others have been documented on an opportunistic basis.  Photos have been collected within Southeast Alaska, along the Alaskan Peninsula, Kodiak Island, the Gulf of Alaska and Bering Sea sides of the Aleutian Chain, as well as, the Bering Sea, Bering Strait and Chukchi Sea.

Tags: alaska, alaska fisheries science center, cetacean assessment and ecology program, doc/noaa/nmfs/afsc, national marine fisheries service, noaa, photo-identification, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
AFSC/RACE/GAP/McConnaughey: Fishpac Projects-2006-Klein 7180-From archiver

The broad scope of the Essential Fish Habitat (EFH) mandate requires an efficient process for describing and mapping the habitat needs of federally managed species.  For example, research indicates surficial sediments affect the distribution and abundance of many groundfish species, yet traditional sampling with grabs and cores is impractical over areas as large as the Bering Sea shelf.  Acoustic tools are suitable for large-scale surveying and show great promise as a substitute for direct-sampling methods, but they have not been proven useful for EFH purposes.

Tags: acoustic sediment classification, afsc/race/gap/mcconnaughey: fishpac projects-2006-klein 7180, alaska fisheries science center, bering sea, doc/noaa/nmfs/afsc, grain size analysis, habitat mapping, multibeam echosounder, national marine fisheries service, noaa, side scan sonar, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Alaska Northern Fur Seal Adult Satellite Telemetry Data, 2002/03 and 2009/10

Adult male and female northern fur seals (Callorhinus ursinus) are sexually segregated in different regions of the North Pacific Ocean and Bering Sea during their winter migration. Explanations for this involve interplay between physiology, predator-prey dynamics, and ecosystem characteristics, however possible mechanisms lack empirical support. To investigate factors influencing the winter ecology of both sexes, we deployed five satellite-linked conductivity, temperature, and depth data loggers on adult males, and six satellite-linked depth data loggers and four satellite transmitters on adult females from St. Paul Island (Bering Sea, Alaska, USA) in October 2009. Males and females migrated to different regions of the North Pacific Ocean: males wintered in the Bering Sea and northern North Pacific Ocean, while females migrated to the Gulf of Alaska and California Current. Horizontal and vertical movement behaviors of both sexes were influenced by wind speed, season, light (sun and moon), and the ecosystem they occupied, although the expression of the behaviors differed between sexes. Male dive depths were aligned with the depth of the mixed layer during daylight periods and we suspect this was the case for females upon their arrival to the California Current. We suggest that females, because of their smaller size and physiological limitations, must avoid severe winters typical of the northern North Pacific Ocean and Bering Sea and migrate long distances to areas of more benign environmental conditions and where prey is shallower and more accessible. In contrast, males can better tolerate often extreme winter ocean conditions and exploit prey at depth because of their greater size and physiological capabilities. We believe these contrasting winter behaviors 1) are a consequence of evolutionary selection for large size in males, important to the acquisition and defense of territories against rivals during the breeding season, and 2) ease environmental/physiological constraints imposed on smaller females.

Tags: alaska ecosystems program, alaska fisheries science center, animal migration, bering sea, california, california current ecosystem, callorhinus ursinus, doc/noaa/nmfs/afsc, habitat utilization, marine ecosystems, national marine fisheries service, noaa, north pacific ocean, northern fur seal, oregon, otariid, pinniped, u.s. department of commerce, washington
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
AFSC/RACE/GAP/Prescott: Central Gulf of Alaska Multibeam Survey H11114

We assembled 1.75 million National Ocean Service (NOS) bathymetric soundings from 225 lead-line and single-beam echosounder hydrographic surveys conducted from 1901 to 1999 in the central Gulf of Alaska. These bathymetry data are available from the National Geophysical Data Center (NGDC: http://www.ngdc.noaa.gov), which archives and distributes data that were originally collected by the NOS and others. While various bathymetry data have been downloaded previously from NGDC, compiled, and used for a variety of projects, our effort differed in that we compared and corrected the digital bathymetry by studying the original analog source documents - digital versions of the original survey maps, called smooth sheets. There were several areas where these older surveys were superseded by more recent, higher quality multibeam surveys, mostly from the NOS (n=106). Three of these were unprocessed NOS multibeam surveys in the Sitka area, which we edited and processed into final bathymetric surfaces. We reduced the resolution of these multibeam surveys to 100 m, since some may have sub-meter resolution and many exceed a million soundings, and added them to our bathymetry compilation. 
In Sitka Sound was missing survey H11114. Processing and adding its bathymetric data to our compilation filled in a substantial gap in Sitka area, between Kruzof and Krestof islands.

Tags: alaska, alaska fisheries science center, bathymetry, doc/noaa/nmfs/afsc, groundfish assessment program, gulf of alaska, national marine fisheries service, noaa, north pacific ocean, point, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Alaska Harbor Seal Glacial Surveys

Floating glacial ice serves as a haul-out substrate for a significant number (10-15%) of Alaskan harbor seals, and thus surveying tidewater glacial fjords is an important component of statewide efforts to estimate seal abundance. Surveys conducted during pupping suggest that glacial haul outs have higher than average productivity and thus may serve as important source populations statewide. The availability of ice for hauling out varies with seasonal glacial dynamics, but over decades of climate change most tidewater glaciers are now retreating toward eventual grounding with many already ceasing to calve ice into the water. Compounding glacial retreat and thinning is the trend at most of these sites toward increasing tourism and a low compliance of tour vessels to seal approach guidelines and regulations. It is thus important to track glacial populations over the long-term especially as various impacts may degrade seal habitat leading to fewer glacial seals and potential impacts to the population state-wide. 

There are currently 28 glacial sites that have at least one actively calving tidewater glacier and in turn seals that haul out on the ice during the sealsâ molting period, when most surveys have occurred.  Due to concerns about vessel disturbance, Disenchantment and Icy Bays have been surveyed during molting almost annually between 2001-2011 (ex 2003); surveys occurred during pupping and molting in 2004 and 2005, and have occurred just during molting apx. every other year since 2011. Johns Hopkins Inlet in Glacier Bay has been surveyed annually using these methods since 2007, with surveys occurring during both pupping and molting.  The remaining 25 sites have been surveyed on an opportunistic schedule (based on weather and aircraft availability), which for most sites equates to about every 2-3 years. Some of the smallest sites have been surveyed on a 4-5 year schedule. These schedules will likely continue with more abundant sites in Prince William Sound (e.g., College Fjord and Columbia) and Southeast Alaska (Tracy Arm, Endicott Arm, LeConte Bay, and Glacier Bay) having higher priority and contingent on management concerns.

Tags: alaska, alaska fisheries science center, alaska harbor seal surveys and abundance, doc/noaa/nmfs/afsc, gulf of alaska, harbor seal, national marine fisheries service, noaa, tidewater glacier, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
AFSC/RACE/GAP/Laman: Model Results of Aleutian Island POP distributions

The data supporting the "Model Results of Aleutian Island POP distributions" manuscript are distribution and abundance of Pacific ocean perch from RACEBase, distribution of biogenic structures from RACEBase, coincident observations of environmental covariates, and some modeled habitat covariates used to assess relationships between POP distribution and abundance and their habitat. Time frame is 1997-2010 and geographic area is Aleutian Islands.

Tags: alaska, alaska fisheries science center, doc/noaa/nmfs/afsc, groundfish assessment program, national marine fisheries service, noaa, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
AFSC/RACE/GAP/McConnaughey: Fishpac Projects-2008-Seaboss-From archiver

The broad scope of the Essential Fish Habitat (EFH) mandate requires an efficient process for describing and mapping the habitat needs of federally managed species.  For example, research indicates surficial sediments affect the distribution and abundance of many groundfish species, yet traditional sampling with grabs and cores is impractical over areas as large as the Bering Sea shelf.  Acoustic tools are suitable for large-scale surveying and show great promise as a substitute for direct-sampling methods, but they have not been proven useful for EFH purposes.

Tags: acoustic sediment classification, afsc/race/gap/mcconnaughey: fishpac projects-2008-seaboss, alaska fisheries science center, bering sea, doc/noaa/nmfs/afsc, grain size analysis, habitat mapping, multibeam echosounder, national marine fisheries service, noaa, side scan sonar, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
AFSC/ABL: Nearshore Fish Atlas of Alaska

NOAA Fisheries Alaska Regional Office and Alaska Fisheries Science CenterÃ¢ÂÂs Auke Bay Laboratories designed the Nearshore Fish Atlas of Alaska (NFA) to provide access to available data on the distribution, relative abundance, and habitat use of nearshore fishes in Alaska. The NFA is a spatially explicit, unified database of numerous nearshore catch datasets collected by various agencies and organizations in Alaska over the past several decades. The compiled datasets are from dozens of studies with different objectives and gear types (e.g., beach seines, purse seines, and trawls). The online NFA application has spatial and tabular tools for extensive searching, filtering, and downloading fully attributed data.

Tags: ak, alaska, alaska fisheries science center, auke bay laboratories, doc/noaa/nmfs/afsc, national marine fisheries service, noaa, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce