AndreaBozzo/ceres-open-data-index huggingface dataset:
AFSC/RACE/GAP/Rooper: ME70 mapping of trawlable grounds in the Gulf of Alaska

The core function of the Resource Assessment and Conservation Engineering (RACE) Division is to conduct quantitative fishery surveys and related ecological and oceanographic research to measure and describe the distribution and abundance of commercially important fish and crab stocks in the eastern Bering Sea, Aleutian Islands, and Gulf of Alaska.  This includes measuring the abundance of fish (including rockfishes) in rocky untrawlable areas. To accomplish this, we are mapping untrawlable areas using an ME70 multibeam data. These data area stored as image files ArcGIS shapefiles

Tags: alaska fisheries science center, aleutian islands, doc/noaa/nmfs/afsc, fall, groundfish assessment program, gulf of alaska, national marine fisheries service, noaa, pacific ocean, summer, u.s. department of commerce, winter
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
AFSC/RACE/GAP/McConnaughey: Trawlex BACI-2001-2002 -GIS

The Resource Assessment and Conservation Engineering (RACE) Division of the Alaska Fisheries Science Center (AFSC) conducted a survey in the eastern Bering Sea (EBS) to evaluate short-term impacts of bottom trawls on soft-bottom benthic habitats and to describe the recovery process.  This was a multi-year project which follows earlier studies of long-term bottom trawling impacts in the same general region.  The study area was within the Crab and Halibut Protection Zone 1 in Bristol Bay (management area 512; approximately latitude 58 degrees north and longitude 160 degrees west.  In general, at-sea work was divided into three phases: (1) integrated biological and geological sampling before experimental trawling, (2) experimental trawling and (3) integrated biological and geological sampling after experimental trawling.  Survey activities were conducted aboard the 47.2 meter (155 ft) chartered vessel Ocean Explorer.  This was a commercial fishing vessel modified to support the research activities.  Activity during phase 1 consisted of side scan assessments of seafloor morphology with an interferometric Klein 5410 side scan sonar towfish during night wheel watches, and epifauna trawls and collection of infauna and sediment grabs during daylight hours.  All samples from a particular gear were collected in succession, so as to minimize time spent installing and configuring gear during phases (1) and (3).  Assessment activities after the impact phase were a repeat of activities prior to experimental trawling.

Tags: acoustic sediment classification, afsc/race/gap/mcconnaughey: trawlex baci-2001-2002, alaska fisheries science center, baci design, bering sea, doc/noaa/nmfs/afsc, national marine fisheries service, noaa, side scan sonar, trawl impact, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
AFSC/RACE/GAP/McConnaughey: South Arctic Reconnaissance-2012-Klein 7180-USBL Positioning

A custom designed Klein 7180 towed sonar was deployed from the NOAA Ship FAIRWEATHER to determine its value of acoustic backscatter as a habitat defining character. A Sonardyne Fusion USBL system was used to estimate underwater positioning of the towfish using an omnidirectional Wideband submini beacon operating in external trigger mode. Navigation data were logged in QINSy and exported into a text file. The towfish positions were then smoothed in Matlab using a custom script that implemented a weighted Hamming filter, using a window of 11 data points. These points represent the smoothed USBL navigation data for the Klein 7180 towfish during the Arctic reconnaissance transit from Dutch Harbor to Kotzebue. These smoothed towfish navigation data, however, will NOT ultimately be reinserted back into the sonar files for mosaicking and analysis. Rather, another navigation smoothing routine will be used for the final product.

Tags: afsc/race/gap/mcconnaughey: south arctic reconnaissance-2012-klein 7180, alaska fisheries science center, doc/noaa/nmfs/afsc, national marine fisheries service, navigation, noaa, side scan sonar, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
AFSC/RACE/GAP/McConnaughey: Trawlex Chronic Effects: Trawlex (1996) Macrofauna CPUE (weight/hectare)

The eastern Bering Sea has experienced rapid and intensive development of commercial trawl fisheries. Because of good record keeping and the relatively brief history of fishing it is possible to reconstruct the spatial and temporal patterns of exploitation. Previously unfished (UF) areas can be identified and directly compared with heavily fished (HF) areas to investigate long-term consequences for the benthos. Using this approach, macrofauna populations in a shallow (48 m average) soft-bottom area were studied during 1996.

Tags: afsc/race/gap/mcconnaughey: trawlex chronic effects-1996-other, alaska fisheries science center, bering sea, bottom trawling, doc/noaa/nmfs/afsc, invertebrates, macrofauna, national marine fisheries service, noaa, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
AFSC/RACE/GAP/McConnaughey: South Arctic Reconnaissance-2012-Reson

Polyline depicting the extent along the transit where multibeam sonar data were acquired using the Reson 7111 and 8160 mulltbeam sonar systems. Multibeam echosounder data were acquired and processed according to NOAA OCS hydrographic standards.

Tags: afsc/race/gap/mcconnaughey: south arctic reconnaissance-2012, alaska fisheries science center, bering sea, doc/noaa/nmfs/afsc, multibeam sonar, national marine fisheries service, navigation, noaa, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
AFSC/ABL: Little Port Walter temperature (fresh and saltwater) and salinity, 1997 to present

The data set provides daily fresh & saltwater temperatures as well as saltwater salinity taken at Little Port Walter field station.

Tags: ak, alaska, alaska fisheries science center, auke bay laboratories, doc/noaa/nmfs/afsc, freshwater temperature, little port walter, lpw, national marine fisheries service, noaa, salinity, saltwater temperature, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Aerial Survey Counts of Harbor Seals in Coastal Alaska (1998-2002)

This dataset supports efforts to estimate the abundance and trends in population size of Alaska harbor seals. Annual surveys of harbor seal populations are fundamental to estimation of seal abundance, distribution, and trends, which in turn are essential for stock assessment, conservation, and management. The most feasible approach to determining harbor seal distribution and abundance is to use aircraft to count seals when they haul out of the water and are visible. Harbor seals in Alaska occupy a geographically extensive range from approximately long. 172ÂºE to 130ÂºW (over 3,500 km east to west) and from lat. 51ÂºN to 61.5ÂºN (over 1,000 km north to south). Estimation of the abundance of harbor seals statewide requires broad-scale aerial surveys and these surveys have been conducted by NOAA Fisheries, the Alaska Department of Fish and Game, and other collaborators since the early 1980s. This dataset reflects counts of harbor seals from surveys conducted in Alaska between 1998 and 2002.

During this period, the range of Alaska harbor seals was divided into five survey regions and only one region was surveyed each year. This approach allowed observers to survey the entire coastline of each region, sometimes twice per year, to identify new harbor seal haul-out sites, and for individual haul-out sites to be surveyed multiple times in a given year, weather permitting. This intensive effort produced a lot of data for each region in a given year, but surveying the entire range to produce state-wide abundance and trend estimates required a period of 5 years.

Tags: alaska, alaska fisheries science center, alaska harbor seal surveys and abundance, doc/noaa/nmfs/afsc, harbor seal, 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-Video

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/RACE/GAP/McConnaughey: Bristol Bay Reconnaissance Study-2002-QTC

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-2009-Seaboss-Video

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-2009-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
Obsolete - AFSC/RACE/GAP/Orr: NPRB_1016 An annotated checklist of the marine macroinvertebrates of Alaska and a retrospective analysis of the groundfish trawl database.

A comprehensive species list of marine invertebrates of Alaska has been lacking. The checklist of Austin (1985) treated the marine invertebrates of the southern coast of Alaska to California and since then many new species have been described, many range extensions have been discovered, and considerable changes in higher-level systematics have been made. The checklist we compiled lists over 3,500 species and includes the currently accepted scientific name and its significant synonyms, common names, type localities, geographic and depth distributions, a general statement of abundance in Alaska when known (e.g., rare, uncommon, common, abundant), and general remarks. This checklist will serve as a foundation for future species-specific research. Updated species lists are necessary to reflect the current state of biodiversity knowledge and are thus essential for conservation planning and management. To monitor and predict future changes to marine life, the distribution and abundance of marine species need to be better understood, and this can only be achieved with reliable identifications based on a sound taxonomy. The current status and future directions of Alaskan marine invertebrate biodiversity are briefly discussed.

Tags: alaska, alaska fisheries science center, aleutian islands, and abyss, annual, beaufort sea, bering sea, biennial, checklist, chukchi sea, continental shelf, continental slope, doc/noaa/nmfs/afsc, groundfish assessment program, gulf of alaska, national marine fisheries service, noaa, obsolete data set, present, subtidal, surface, systematics, taxonomy, trawl survey, triennial, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Alaska Steller Sea Lion Non-pup Count Database

This database contains counts of adult and juvenile (non-pup) Steller sea lions on rookeries and haulouts in Alaska made between 1904 and 2019.  Non-pup counts have been conducted throughout the year.  Breeding season (June-mid July) non-pup counts are used for population trend analysis, while counts at other times are used for analyses of distribution and for other purposes.  Non-pups are counted from the ground (by walking along the rookery), from cliff-side overlooks, and from aerial imagery (oblique and vertical orientation).  Non-pup counts represent only a fraction of the total number of animals that may use a site.  Sea lions haul-out less frequently in winter than in summer; thus, winter counts represent a smaller fraction of the total population than summer counts.

Tags: aerial survey, alaska, alaska ecosystems program, alaska fisheries science center, aleutian islands, bering sea, british columbia, doc/noaa/nmfs/afsc, eumetopias jubatus, fall, gulf of alaska, national marine fisheries service, noaa, otariid, pinniped, population, prince william sound, southeast alaska, steller sea lion, summer, survey, u.s. department of commerce, winter
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
AFSC/ABL: 2006 Sockeye genetics

The purpose of this study was to genetically analyze axillary process samples from ~6,000 sockeye salmon harvested in the 2006 and 2007 Districts 101 gillnet and 104 purse seine sockeye fisheries to determine proportions of Canadian and U.S. fish.  A SNP genetic baseline of 45 SNPs (41 markers as 3 groups of SNPs are linked) assayed in 84 sockeye populations from southeast Alaska and British Columbia was developed by the ADF&G.  The 84 populations were grouped into 14 regions.  With the exception of locus One_Serpin, which failed during genotyping, the same markers were evaluated in the baseline and mixtures.  Stock proportions were estimated using a Bayesian mixture analysis.   In addition to performing mixture analysis for the 2006 and 2007 fisheries, the sockeye baseline was also expanded as part of the 2007 project. Approximately 1700 fish from 21 locations were genotyped, which will be included in a future updated baseline.

Tags: 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
AFSC/RACE/GAP/McConnaughey: Fishpac Projects-2012-CPUE

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/NMML/CCEP: Natality rates of California sea lions at San Miguel Island, California during 1987-2008

The National Marine Mammal Laboratories' California Current Ecosystem Program (AFSC/NOAA) initiated a long-term marking program of California sea lions (Zalophus californianus). This dataset contains initial capture and marking data for California sea lion pups at San Miguel Island, California and subsequent resighting of the marked animals throughout the time series. The data are used in mark-recapture analysis to estimate natality rates.

Tags: alaska fisheries science center, birth rate, california, california current ecosystems program, california sea lion, doc/noaa/nmfs/afsc, mark-recapture, natality, national marine fisheries service, noaa, pinniped, san miguel island, summer, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
AFSC/RACE/MACE: Results of 2015 acoustic trawl survey Shumagin/Sanak/PWS DY1502

The surveys primary objective was to collect acoustic data and trawl information to estimate midwater abundance and distribution of walleye pollock (Gadus chalcogrammus) in the Gulf of Alaska (GOA) Shumagins Region during late winter and early spring. Acoustic data were collected using five split-beam transducers (18, 38, 70, 120, and 200 kHz) and Simrad ER60 scientific echo sounders. Midwater and near-bottom acoustic backscatter was sampled using an Aleutian Wing 30/26 Trawl (AWT) and a poly Noreastern bottom trawl (PNE) with roller gear. This long-running survey has consistently provided data on the pollock population in the western GOA during winter and spring months.

Tags: afsc/race/mace: pollock acoustic/trawl survey spawning annual shumagins, alaska fisheries science center, doc/noaa/nmfs/afsc, 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-2006- Navigation

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, 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/REFM: Octopus gear and discard mortality studies in Alaska

NMFS Cooperative Research studies for octopus.  Two small field studies to increase information for management of the octopus complex in the BSAI and GOA.  The first project provided gear and fuel for commercial vessels to test fish longlined habitat pot gear for directed octopus fishing.  Gear included the plywood box pots developed for NPRB project 906 and HPDE octopus pots purchased by one industry partner from overseas.  One vessel deployed groundline from a longline reel and the other from a commercial crab block; in both cases, octopus habitat pots were added as clip-on gear to the longline.  The longline vessel in the GOA caught octopus in both plywood and HDPE pots, with the catch rate varying by season.  The pot vessel in the BSAI had no problems handling gear, but caught very little octopus. The second project was directed at estimating short-term delayed mortality of octopus caught in commercial crab pot gear.  Octopus captured in cod pots were held in individual containers in running seawater for 48-60 hours, and examined for condition every 24 hours.  None of the 36 octopus in the study showed mortality or decline in condition during the observed period.  Two octopus held in containers on deck (in air) survived more than two hours. All but one of the octopus were in excellent condition at the usual point of discard.

Tags: alaska fisheries science center, aleutian islands, bering sea, commercial fisheries, discard mortality, doc/noaa/nmfs/afsc, enteroctopus dofleini, giant pacific octopus, gulf of alaska, habitat pot gear, national marine fisheries service, noaa, octopus, octopus fishing, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce