| 摘要 |
FIELD: commercial fishery, in particular, methods and equipment for catching of fish and sea invertebrates, based on responsiveness thereof to light. ^ SUBSTANCE: apparatus has netted sack equipped with floats arranged over upper seine rope and with weights, tightening rings and tension cable, which are arranged over lower seine rope. Also, netted sack is additionally equipped with triangular netted plates and flat elastic hydrodynamic rectangular members. Triangular netted plates are attached to side seine ropes of netted sack and flat elastic hydrodynamic rectangular members are fastened to inner side of triangular netted plate, with adjacent flat elastic hydrodynamic members partly overlapping each other. Flat elastic hydrodynamic members are fastened by means of strands to at least 1/3 the length of outer side of triangular netted plate, at a distance from upper seine rope. Method involves arranging apparatus for catching of fish and sea invertebrates in proper operating position; concentrating fish yield by means of light; raising and pouring caught fish; before arrangement of related equipment in proper position, attaching at least two feeding cables to weights and attaching at least two tightening cables to upper seine rope and/or to side seine ropes; raising fishing apparatus by providing synchronous tightening of feeding and tightening cables and of tension cable. ^ EFFECT: increased fish catching area and, accordingly, increased efficiency in catching of fish and sea invertebrates from board the ship. ^ 4 cl, 3 dwg |
