r_mig_mult {stacomiR}

Anguilla migration at the Arzal station (report_mig_mult-class)

Description

This data corresponds to data collected from three fishways and correspond to the migration station at Arzal (Vilaine estuary, France) in 2011 for three continental stages of eel (Anguilla anguilla) : glass eel, yellow eel and silver eel.

Usage

r_mig_mult

Format

An object of class report_mig_mult with slots:

dc

the ref_dc object filled with data

taxa

the ref_taxa object filled in with data corresponding to dc

stage

the ref_stage object filled in with data corresponding to dc, and taxa

timestep

the ref_timestep_daily calculated for all 2011

data

A dataframe with 400 rows and 11 variables

ope_identifiant

operation id

lot_identifiant

sample id

lot_identifiant

sample id

ope_dic_identifiant

dc id

lot_tax_code

species id

lot_std_code

stage id

value

the value

type_de_quantite

either effectif (number) or poids (weights)

lot_dev_code

destination of the fishes

lot_methode_obtention

method of data collection, measured, calculated...

calcdata

slot to be filled with the calcule method

coef_conversion

A data frame with 364 observations with daily coefficients to convert from weight to numbers

time.sequence

A time sequence generated for the report, used internally by the object