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Author
Leslie
Description
Data is available from annual bottom longline surveys conducted cooperatively by Japan (1979-1994) and the U.S. National Marine Fisheries Service, Alaska Fisheries Science Center (1988-present). Starting in 1988, the U.S. started conducting the survey, creating overlap between the two countries between1988-1994. Since 1994, the U.S. has conducted the survey independently. Stations are spaced systematically (~20-30 km apart) along the slope from the eastern Gulf of Alaska west to the Aleutian Islands and north into the eastern Bering Sea. At each station, depths from ~150-1000 meters are sampled. Each year the captain attempts to set the gear along the same path. The same stations are sampled each year except in the Aleutian Islands and the Bering Sea, which are sampled every other year at the beginning of the survey (last week of May-early June). Since 1995, in odd years the Bering Sea stations are sampled and in even years the Aleutian Islands are sampled. The status of each hook is recorded. Lengths are taken from major species including, sablefish, giant grenadier, Pacific grenadier, Greenland turbot, arrowtooth flounder, Pacific cod, shortspine thornyhead, and all rockfish caught.
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The Socrata Open Data API (SODA) provides programmatic access to this dataset including the ability to filter, query, and aggregate data. For more more information, view the API docs for this dataset or visit our developer portal

API Endpoint:

Field Names:

Cruise_Number
cruise_number
Vessel_Number
vessel_number
Station_Number
station_number
species_code
species_code
catch_freq
catch_freq
Common_name
common_name
hachi
hachi
Vessel_name
vessel_name
Country
country
Year
year
haul_date
haul_date
start_hemi_ns
start_hemi_ns
start_hemi_ew
start_hemi_ew
end_hemi_ns
end_hemi_ns
end_hemi_ew
end_hemi_ew
set_start_time
set_start_time
set_end_time
set_end_time
haul_start_time
haul_start_time
haul_end_time
haul_end_time
soak_time
soak_time
distance_fished
distance_fished
starting_depth
starting_depth
ending_depth
ending_depth
surface_temperature
surface_temperature
gear_temperature
gear_temperature
intrpdep
intrpdep
stratum
stratum
stratum2
stratum2
baited
baited
ineffective
ineffective
rpn_filter
rpn_filter
Station_Type
station_type
Council_sablefish_management_area
council_sablefish_management_area
Geographic_area_name
geographic_area_name
Exploitable
exploitable
Habitat_Type
habitat_type
mammal_sighting
mammal_sighting
depredation_flag
depredation_flag
depredated_freq
depredated_freq
non_depredated_freq
non_depredated_freq
haul
haul
StratumDescription
stratumdescription
StratumDescription2
stratumdescription2
tdr_depth
tdr_depth
depth
depth
depth_time
depth_time
Cruise_Station_ID
cruise_station_id
Depth_ID
depth_id
NMFS_Area_Code
nmfs_area_code
Location 1
location_1
Location 2
location_2

Use OData to open the dataset in tools like Excel or Tableau. This provides a direct connection to the data that can be refreshed on-demand within the connected application.

Socrata OData documentation

Tableau users should select the OData v2 endpoint option.

OData V4 Endpoint:

OData V2 Endpoint:

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