HG_herring_pred_area: Area considered for predators of Haida Gwaii Pacific Herring

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

Area considered for predators of Haida Gwaii Pacific Herring

Description

Primarily to determine which stations are within the relevant area to then generate indices of abundance for groundfish predators of Haida Gwaii Pacific Herring. See vignette.

Usage

HG_herring_pred_area

Format

A data.frame, also of class PolySet (from PBSmapping) with columns, of which X and Y (longitude and latitude) are then used to determine which IPHC stations are inside the relevant area:

PID

primary identifier

SID

secondary identify

POS

not sure what this is

X

longitude of station

Y

latitude of station

Source

Jennifer Boldt sent Andrew Edwards the shape files for the area (corresponding to those used for Pacific Hake predators of Pacific Herring), which Rowan Haigh helped use with PBSmapping (primarily helping overdrawing of islands) There are still some minor issues and extra lines shown, possibly to do with islands on lakes on islands in the sea. Details in data-raw/herring-predators-HG/herring-predators-HG-area.R.

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