posted on 2011-12-29, 02:12authored byKhanh Dung T. Nguyen, Simon A. Morley, Chien-Houng Lai, Melody S. Clark, Koh Siang Tan, Amanda E. Bates, Lloyd S. Peck
<p>The activity quotient is derived as the fourth root of the product of the feeding and activity scores (based on <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0029340#pone.0029340-Peck1" target="_blank">[16]</a>).</p><p>In feeding mode:1 = passive ciliary, 2 = pumping, 3 = grazing, 4 = capture.</p><p>In movement type:1 = sedentary, 2 = sedentary + muscular activity, 3 = crawling, 4 = burrowing, 5 = walking, 6 = swimming.</p><p>In movement speed:1 = none, 2 = slow, 3 = medium, 4 = fast.</p><p>In movement duration:1 = never, 2 = very rare, 3 = occasional, 4 = sometimes, 5 = often.</p>