Black anglerfish individual-based data from the Bay of Bizcay sampled from the catch of an industrial fishing fleet.
A data frame with 1367 observations on the following 4 variables.
Numeric, total fish length in cm
Integer, 1 for males and 2 for females
Integer, the month of capture
Integer, stages of maturity encompassing a gradual advance from juvenile to sexually matur individual
Maturity stages have been fixed by biologists using macroscopic aspect of the fish gonads.