Calculate haul-level catch per unit effort

This function calculates and zero-fills weight and numerical catch per unit effort (area swept, km2)

Usage

calc_cpue(gapdata = NULL, racebase_tables = lifecycle::deprecated())

Arguments

gapdata

data object created from gapindex::get_data()

racebase_tables

Use the gapdata argument instead.

Value

Field	Description
DEPTH_M	Bottom depth (meters).
DESIGN_YEAR	Year ID associated with a given value AREA_ID. This field describes the changes in the survey design over time.
HAULJOIN	This is a unique numeric identifier assigned to each (vessel, cruise, and haul) combination.
LATITUDE_DD_END	Latitude (one hundred thousandth of a decimal degree) of the end of the haul.
LATITUDE_DD_START	Latitude (one hundred thousandth of a decimal degree) of the start of the haul.
LONGITUDE_DD_END	Longitude (one hundred thousandth of a decimal degree) of the end of the haul.
LONGITUDE_DD_START	Longitude (one hundred thousandth of a decimal degree) of the start of the haul.
SPECIES_CODE	The species code of the organism associated with the common_name and scientific_name columns. For a complete species list, review the code books.
STRATUM	RACE database statistical area for analyzing data. Strata were designed using bathymetry and other geographic and habitat-related elements. The strata are unique to each survey region. Stratum of value 0 indicates experimental tows.
SURVEY	Name and description of survey. The column survey is associated with the srvy and survey_definition_id columns.
SURVEY_DEFINITION_ID	The survey definition ID key code is an integer that uniquely identifies a survey region/survey design. The column survey_definition_id is associated with the srvy and survey columns. Full list of survey definition IDs are in RACE_DATA.SURVEY_DEFINITIONS and in the code books.
WEIGHT_KG	Weight (thousandths of a kilogram) of individuals in a haul by taxon.
YEAR	Year the observation (survey) was collected.
AREA_SWEPT_KM2	The area the net covered while the net was fishing (kilometers squared), defined as the distance fished times the net width.
BOTTOM_TEMPERATURE_C	Bottom temperature (tenths of a degree Celsius); NA indicates removed or missing values.
COUNT	Total whole number of individuals caught in haul or samples collected.
CPUE_KGKM2	Catch weight (kilograms) per unit effort (area swept by the net, units square kilometers).
CPUE_NOKM2	Numerical catch per unit effort (area swept by the net, units square kilometers).
CRUISE	This is a six-digit integer identifying the cruise number of the form: YYYY99 (where YYYY = year of the cruise; 99 = 2-digit number and is sequential; 01 denotes the first cruise that vessel made in this year, 02 is the second, etc.).
CRUISEJOIN	Unique integer ID assigned to each survey, vessel, and year combination.