data1996to2002: Set-by-set level data (with species counts) from 1996 to...

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

Set-by-set level data (with species counts) from 1996 to 2002.

Description

A dataset containing details of the catches at each station from 1996 to 2002 for the IPHC survey. Note that 1996 is based on all hooks being enumerated while 1997-2002 is for first 20 only. This is taken into account in get_iphc_1996to2002() which should be used to extract these data. The values of effSkateIPHC here have already been corrected to give an effective skate number based on the true number of hooks observed for 1997-2002.

Usage

data1996to2002

Format

A tibble:

year

year

station

station name

set

set number within a trip (double check that)

lat

latitude of station

lon

longitude of station

depthAvge

average depth of set - NOTE: have not double checked if fathoms (like later years) or metres

spCodeIPHC

species code as used by the IPHC

spNameIPHC

species name as used by the IPHC

E_it

effective skate number of the set, as calculated by IPHC (based on observed hook numbers)

catchCount

count of that species for that set

skates

number of skates on that set

hooksObserved

number of hooks observed on that set

usable

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

Source

Originally from the file 2B AllSpecies 96-02 roundlll.xls that came from the IPHC, which Rowan Haigh extracted into 'IPHC 2B Catch.rda', Andrew Edwards preprocessed in iphc9602.Snw for Yelloweye 2014 assessment, and then tidied further in private yeye15reproduce repository.

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