We show that marine zooplankton change their level of coloration both with depth and time of the day. The carnivorous copepod Pareuchaeta norvegica caught near the bottom in 200–400-m deep-water columns were darker than specimens caught higher in the water column. A diel rhythm in coloration occurred even at several hundred meters’ depth, with individuals caught during night time being more pig...

Water scarcity is the major limiting factor for oasis-desert agricultural production of cotton. It necessary to improve cotton drought tolerance and minimize drought-related crop losses, transgenic approach efficient improvement. In order evaluate value ScALDH21 (G. hirsutum L.), it was tested in main region south Xinjiang, an environment extreme around desert. Transgenic cotton, overexpressing...

Net and acoustic studies of diel vertical migration (DVM) in krill often show a degree of dispersion around the mean population depth, which becomes greater during night-time. Trade-off models can predict optimum depths over diel cycles but rarely explain why there is vertical scatter and why aggregations disperse at certain times. We examined density-dependent factors as a potential explanatio...