setData2021: Station data for 2021 and 2022 IPHC surveys (following 2020...

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

Station data for 2021 and 2022 IPHC surveys (following 2020 approach since 20-hooks again)

Description

A dataset containing details of the stations for the 2021 (setData2021) and 2022 (setData2022) IPHC surveys; one set was deployed at each station.

Usage

setData2021

setData2022

Format

A tibble:

year

2021 or 2022

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)

An object of class tbl_df (inherits from tbl, data.frame) with 174 rows and 11 columns.

Source

See data-raw/iphc-2021-data.Rmd and data-raw/iphc-2021-data.pdf for full details and how data were extracted from IPHC website, and similar files for 2022.

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