Trap for e.g. fish larvae has collecting chamber containing lamp to attract them which has transparent walls arranged in star shape with entry slots at re-entrant angles

摘要

The trap for fish larvae or aquatic invertebrates has a collecting chamber (10) containing a lamp (5) to attract them. The chamber has transparent walls arranged in a star shape. These are fastened together at their points (14) but are left loose to form entry slots (15) at the re-entrant angles.