data_wae_is_short {Petersen}

Walleye data with incomplete stratification with no covariates and condensed

Description

Data used in Premarathna, W.A.L., Schwarz, C.J., Jones, T.S. (2018) Partial stratification in two-sample capture–recapture experiments. Environmetrics, 29:e2498. https://doi.org/10.1002/env.2498

Usage

data(data_wae_is_short)

Format

data_wae_is_short A data frame with many rows and 2 columns

cap_hist.

Capture history with possible histories as noted below

freq.

Number of fish with this history.

Details

Data is slightly different from that in paper above because some fish did not have length measured and so were drop from data_wae_is_long and this is the condensed version of data_wae_is_long.

Fish were tagged on the spawning grounds and recovered in the summer gillnet assessment.

Rather than sexing all of the fish, only a sub-sample of unmarked fish is sexed at each sampling occasion. Possible capture histories are then M0, F0, MM, FF, U0, UU, 0M, 0F