West Coast Groundfish Bottom Trawl Survey Data - 2020 West Coast Groundfish Bottom Trawl Survey and indices of abundance

The Fisheries Research Survey team proposes to conduct the West Coast Groundfish Bottom Trawl Survey from May to October 2019. The goal of the survey is to ensure the sustainability of marine fisheries with a focus on ending overfishing. The groundfish fishery supports management for 90+ commercially fished stocks off Washington, Oregon, and California and is the primary source of fishery-independent data necessary for stock assessments of managed groundfish species inhabiting trawlable habitat along the upper continental slope and shelf. The survey provides data on abundance, spatial distributions, sex, length, maturity, weight, and age structure of groundfish in trawlable habitats. The survey also collects key environmental data (temperature, depth, dissolved oxygen, turbidity, in vivo fluorescence, irradiance, wind speed, location) in association with each tow for use in ecosystem based fisheries management.

This data set contains information on date, time, vessel, trawl identification (i.e. unique number), trawl performance, location, depth, area swept, trawl duration, temperature, species, haul weight, average individual weight, sex, length, length method, fish age and age structure.

Addresses Legal Mandate

Raw/field data, Monitoring or sensor data, Time series (of types 1-3)

Loaded by batch 4364, 02-13-2013 17:14

Subject to Public Access to Research Results (PARR): Yes

Data: Survey data from 2019 for use in future assessments.

Field survey: Completion of that portion of the 2019 survey that occurs in FY19.

Field survey: completion of that portion of the 2019 survey that occurs in in FY19.

Manuscript: A comparative analysis of food habits for several Northeast Pacific rockfishes (Sebastes sp.), using gut contents and stable isotopes..

Manuscript: Relating groundfish diversity and biomass to structure-forming invertebrates in the Northeastern Pacific ocean: an exploration of catch data from a fishery-independent trawl survey..

Manuscript: Sablefish growth in relation to Pyrosomes.

Manuscript: Diet structure of arrowtooth flounder, lingcod, Pacific sanddab, petrale sole and sablefish based on stomach contents and stable-isotope analysis..

Manuscript: Assessing reproductive strategies in marine fishes: applications to management.

Metadata: Metadata for 2019 survey added to FNSSS.

Outreach: Various outreach projects planned - including infographic, blogs, education and service.

Presentation: Multiple presentations at WGC, Center Science Symposium etc..

Presentation: Numerous Presentations Planned - will be added as they occur.

Report: Cruise Report for 2019 survey.

Report: Permit reports to SRP, CA, OR, WA Sanctuaries and Protected Species.

PDR is submitted

N/A

RDBMS (Oracle, SQL Server, etc.)

High

Extensive data review is accomplished using time-series data analysis tools to review the quality of the tows, as well as significant SQL code to confirm fish sampling quality.

QA/QC is performed during this time.

The Northwest Fisheries Science Center facilitates backup and recovery of all data and IT components which are managed by IT Operations through the capture of static (point-in-time) backup data to physical media. Once data is captured to physical media (every 1-3 days), a duplicate is made and routinely (weekly) transported to an offsite archive facility where it is maintained throughout the data's applicable life-cycle.

Data is captured using at-sea data collection software that records sensor time-series as well as captures fish catch and individual compositions.