FISH FARMING SYSTEM FOR FISH AND SHELLFISH

摘要

PROBLEM TO BE SOLVED: To provide a fish farming system for fish and shellfish, which efficiently removes large foreign matters on a sand bed in a rearing tank and is cleaned. SOLUTION: The fish farming system for fish and shellfish is equipped with the rearing tank 1 for rearing fish and shellfish having the sand bed 8 on the bottom, a rearing water cleaning means 3 for cleaning rearing water 2 in the rearing tank 1 and a circulation means 4 for circulating the rearing water 2 between the rearing tank 1 and the rearing water cleaning means 3. A foreign matter discharge port 30 is arranged at one end part of the rearing tank 1 and a water flow generation means 13 for generating a water flow to the foreign matter discharge port 30 is installed at the other end part opposed to the foreign matter discharge port 30. After a water level above the sand bed 8 is lowered, a water-flow is generated by the water flow generation means 13 and foreign matters on the sand bed 8 are discharged from the foreign matter discharge port 30 by the water flow. COPYRIGHT: (C)2004,JPO&NCIPI