摘要
由于西藏生态环境脆弱、生态系统结构简单、生产力低下以及高原鱼类生长缓慢、资源补充周期长、对生境高度适应和依赖等特点,高原水域水生生态更容易受到外界的影响.尤其近几十年以来,外来鱼类入侵、水电水利设施的兴建、过度捕捞、水质环境恶化,导致162种青藏高原鱼类中,处于极危、濒危、易危或野外绝灭鱼类就有35种,超过了20%,在雅鲁藏布江中游,常见的6种裂腹鱼类中,有3种鱼类处于濒危状态,因此推动西藏渔业资源养护刻不容缓.供给侧改革和科技创新,将为西藏渔业资源养护注入新的活力.通过科学引导放生行为,规范和加强增殖放流行为,积累和推广本土鱼类繁育技术,密切关注西藏水生态系统,将会推动西藏渔业资源养护工作迈上一个新台阶,也会助推西藏"精准扶贫"进程.
In Tibet,owing to the characteristics of fragile eco-environment,simple ecosystem structure,low productivity,slow fish growth,long period of resource complement,high fitness and dependence on the environment,the hydro-ecology of rivers and lakes is vulnerable to external factors. Especially,under the condition of alien fish invasion,hydropower facilities construction,overfishing,water environment deterioration,35 fish species are confronting critically endangered,endangered,vulnerable,or extinction condition in the wild,which exceeding 20% of the total 162 fish species distributed in Tibetan Plateau. There are also 3 species confront endangered condition among 6 common Schizothorax fish species distributed in the middle reaches of Yarlung Zangbo River. Therefore,it is urgent to promote fishery resource conservation process in Tibet. Fortunately,supply-side structural reform and technological innovation will reinvigorate fishery resource conservation process. Through scientific guidance release behavior,specification and reinforcement fish stock enhancement behavior,accumulating and promoting breeding technology for native fish,closely focusing on hydro-ecology in Tibet,all these efforts will come to a new step for fishery resource conservation and promote targeted poverty alleviation process in Tibet.
出处
《湖泊科学》
EI
CAS
CSCD
北大核心
2018年第1期266-278,共13页
Journal of Lake Sciences
基金
农业部公益性行业专项(201403012)资助
关键词
供给侧改革
西藏
渔业资源
精准扶贫
外来种
青藏高原
Supply-side structural reform
Tibet
fishery resource
poverty alleviation process
alien species
Tibetan Plateau
