1990年4月20日,“疏目囊头张网释放幼鲳的研究”课题由江苏省水产局组织在南通市通过了鉴定。课题的目的在于设计试验出一种释放装置,减少张网对幼鲳鱼的杀伤力。课题由启东市渔业技术指导站承担。几年的试验结果表明,释放装置合理、实用、有效。带释放装置的试验网与对比 On April 20, 1990, the topic of “Research on the Release of Juveniles from Shu Zhang Tou Tou Zhang Net” was approved by the Bureau of Fisheries of Jiangsu Province in Nantong City. The purpose of this project is to design and test a release device to reduce the damage caused by the net to young catfish. Qidong Fisheries Technical guidance from the task station. Several years of test results show that the release device is reasonable, practical and effective. Test net with release device and comparison