setData2020: Station data for 2020 IPHC survey

In pbs-assess/gfiphc: Data Extraction and Analysis for Groundfish Data from the IPHC Longline Survey in BC

Station data for 2020 IPHC survey

Description

A dataset containing details of the stations for the 2020 IPHC survey; one set was deployed at each station except for station 2104, but one vessel was HAN for which that was the only set in the survey, so it has been removed.

Usage

setData2020

Format

A tibble:

year

2020 for this data set

station

station name

lat

latitude of station

lon

longitude of station

avgDepth

average depth of set (in fathoms, haven't checked units for earlier years)

effSkateIPHC

effective skate number of the set, as calculated by IPHC

E_it20

effective skate number of the set based on the first 20 hooks only, calculated as the (number of hooks observed)/ (number of hooks retrieved) * effSkateIPHC

usable

whether or not the set is usable, as determined by IPHC

standard

whether or not the station is a standard station or in the expanded grid

hooksRetr

number of hooks retrieved for that set

hooksObs

number of hooks observed for that set (already used to calculate E_it20, but saving anyway)

Source

See data-raw/iphc-2020-data.Rmd and data-raw/iphc-2020-data.pdf for full details and how data were extracted from IPHC website.

pbs-assess/gfiphc documentation built on July 4, 2023, 1:13 p.m.