Fisheries independent trawl survey data of fish biomass on North American and European oceanic shelves. ...

• Main Authors: van Denderen, P Daniel, Maureaud, Aurore A, Collie, Jeremy S
• Format: Dataset
• Language: English
• Published: Zenodo 2023
• Subjects: Bottom trawl survey; Demersal fish; Groundfish; Gear catchability; Fish biomass; Pacific; North Atlantic
• Online Access: https://dx.doi.org/10.5281/zenodo.7992513; https://zenodo.org/record/7992513

Publicly available scientific bottom trawl survey data, primarily sampling demersal commercial species, were obtained from the Northeast Pacific and North Atlantic shelf regions in 2021. The final dataset contains approx. 197,000 unique tows and includes data from 1970 to 2019 (166,000 tows between 1980-2015). For each tow in each survey, we selected all teleost and elasmobranch species and obtained species weight. We corrected these weights for differences in sampling area (in km2) and trawl gear catchability. The data processing scripts and individual survey data can be found on Github (DOI: 10.5281/zenodo.7992482). The data processing scripts are modified based on earlier work from Pinsky et al. (2013) and Maureaud et al. (2019). If the correction for gear catchability is not important, it is recommended to use the FishGlob database (DOI: 10.5281/zenodo.7484547). Please contact Daniel van Denderen ([e-mail]) for questions. Column names Haul_id: unique haul identifyer Survey_Region: survey name or ...