摘要
由于海洋环境污染及过度捕捞造成渔业资源不断衰退,人工增殖放流已成为修复水生生物资源的重要途径。安全有效的放流方式对增殖放流实践的成功与否起着至关重要的作用。本文采用行为学方法,对体长(4.5±0.5)cm,体重(3.5±0.5)g的许氏平鲉(Sebastes schlegelii)在实验室水槽的行为特性进行观察,分别记录了在无礁(对照组)和有礁条件下,保护装置、滑道和直接放流三种方式对许氏平鲉分布模式的影响。实验发现,在保护装置放流方式下许氏平鲉在放流有效区的数量显著多于滑道和直接放流两种方式。有人工鱼礁时,许氏平鲉幼鱼在放流有效区的分布率明显高于对照组。实验结果表明,保护装置放流方式对许氏平鲉的应激性最小,结合人工鱼礁的生态效应,能够有效地提高增殖放流效果。
Fishery resources have been depleting due to marine environmental pollution and overfishing.Stock enhancement is regarded as an effective way of recovering the resources that already ebb.The release method,one of the impact factors of stock enhancement,plays a vital role in the success of seedling release practice.However,few studies have focused on this field due to the limitation of the available release devices.Based on the newly developed protective device release method,the behavior of Sebastes schlegelii((4.5±0.5)cm body length;(3.5±0.5)g body weight)in an experimental water-tank with and without(control group)artificial reef models was observed after releasing.The distribution pattern of S.schlegelii was recorded and compared with those under the chute and the direct release methods.Observations demonstrated that the number of juveniles released to the designated area by protective device method was significantly larger than that of other two methods,and the distribution rate of S.schlegelii in the artificial reef area was higher than that of control.Results implicated that the protective device can help to mitigate the stress response of S.schlegelii,and achieve the high locating accuracy of release.The protective device release method is therefore proved superior to others in the seedling release practice.
作者
张俊波
何羽丰
张硕
唐衍力
盛化香
国志兴
ZHANG Jun-Bo;HE Yu-Feng;ZHANG Shuo;TANG Yan-Li;SHENG Hua-Xiang;GUO Zhi-Xing(College of Marine Sciences,Shanghai Ocean University,Shanghai 201306,China;National Engineering Research Center for Oceanic Fisheries,Shanghai Ocean University,Shanghai 201306,China;National Demonstration Center for Experimental Fisheries Science Education,Shanghai Ocean University,Shanghai 201306,China;Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources,Ministry of Education,Shanghai Ocean University,Shanghai 201306,China;College of Fisheries,Ocean University of China,Qingdao 266003,China;National Marine Hazard Mitigation Service,Beijing 100194,China)
出处
《中国海洋大学学报（自然科学版）》
CAS
CSCD
北大核心
2020年第4期29-35,共7页
Periodical of Ocean University of China
基金
上海市青年东方学者项目(QD2017038)
上海高校青年教师培养资助计划项目(ZZSHOU18025)
海州湾海洋牧场示范项目
上海海洋大学博士科研启动基金项目
国家自然科学基金项目(41501560)资助。
关键词
增殖放流
放流方式
许氏平鲉
保护装置
分布模式
人工鱼礁
stock enhancement
release methods
Sebastes schlegelii
protective device
distribution pattern
artificial reef
