Crab characteristic of the crabs offered in the dichotomous prey choice experiment.

<p>The number of crabs offered (n) as well as the average crab size (± SD) is shown. Average (± SD) AFDM (mg), handling time (s) and ash (mg) was calculated based on the crab sizes of each individual crab using the formulas in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0194824#pone.0194824.t001" target="_blank">Table 1</a>. Average (± SD) profitability (<i>e</i>_<i>i</i>/<i>h</i>_<i>i</i>) was calculated by dividing AFDM (mg) by handling time (s) for each individual crab. Average (± SD) digestive quality (<i>e</i>_<i>i</i>/<i>k</i>_<i>i</i>) was calculated by dividing AFDM (mg) by ash (mg) for each individual crab.