This dataset corresponds to the data collected at the vertical slot fishway in 2012, video recording marine lamprey migration
r_migAn object of class report_mig with 8 slots:
the ref_dc object with 4 slots filled with data corresponding to the iav postgres schema
the ref_taxa the taxa selected
the ref_stage the stage selected
the ref_timestep_daily calculated for all 2015
A dataframe with 10304 rows and 11 variables
operation id
sample id
sample id
dc id
species id
stage id
the value
either effectif (number) or poids (weights)
destination of the fishes
method of data collection, measured, calculated...
A data frame with 0 observations : no quantity are reported for video recording of mullets, only numbers
A time sequence generated for the report, used internally