附註 |
Occurs in coastal streams and rivulets under tidal influence, in sites with no (backwater) to medium water-flow (up to 0.2 m/s) and salinity of 0-9 ppt at ebb tide to 12-35 ppt at high tide. Observed to perch on submersed branches, where its cryptic pattern renders it very difficult to spot. When on the underside of a branch, it grasps the algal fronds with its pelvic fins and spreads its pectoral fins to anchor itself among the fronds. It swims slowly with its body curved in an oblique head-up posture, covering distances of up to 1.5 m, resembling a half-waterlogged leaf moving slowly on the water flow. Preys on small arthropods dwelling on algal growth and within decaying wood with mostly isopod and amphipod crustaceans (Ref. 49399). |