raw.wcann: Raw West Coast Annual Raw data set for the West Coast Annual...

Description Usage Format


Raw West Coast Annual

Raw data set for the West Coast Annual bottom trawl survey




A dim = 217514 x 19 data.table data.frame:

[,1] Trawl Id integer64 cleans up to haulid, a unique identifier for the haul; vessel ID - cruise ID - haul number
[,2] Species character cleans up to spp, species scientific name; Genus species
[,3] Haul Weight (kg) numeric cleans up to weight, the weight (mass) of all items in the net (may be extrapolated)
[,4] Individual Average Weight (kg) numeric insert_description_here
[,5] Survey character insert_description_here
[,6] Survey Cycle character cleans up to year, year of haul
[,7] Vessel character cleans up to vessel, vessel ID
[,8] Cruise Leg integer insert_description_here
[,9] Trawl Performance character insert_description_here
[,10] Trawl Date character cleans up to date, date of the tow
[,11] Trawl Start Time character cleans up to datetime, the day and time of the haul
[,12] Best Latitude (dd) numeric cleans up to lat, latitude of the haul
[,13] Best Longitude (dd) numeric cleans up to lon, longitude of the haul, in western hemisphere degrees (for lon > 0, do lon-360)
[,14] Best Position Type character insert_description_here
[,15] Best Depth (m) numeric cleans up to depth, the maximum depth of the water at the location of the haul
[,16] Best Depth Type character insert_description_here
[,17] Trawl Duration (min) numeric cleans up to towduration, the duration (time) for the tow
[,18] Area Swept by the Net (hectares) numeric insert_description_here
[,19] Temperature At the Gear (degs C) numeric cleans up to btemp, water temperature at the bottom at the location of the haul

rBatt/trawlData documentation built on May 26, 2019, 7:45 p.m.