云南江川大头鱼实现增殖放流|成人做爰黄AA片免费看三区

  中新网玉溪7月24日(李丹)“通过多年努力,濒临绝迹的江川大头鱼已实现增殖放流,并取得社会、经济和生态效益。”24日,云南省玉溪市江川区畜牧水产站站长张四春称,日前,该鱼通过国家知识产权局的地理标志产品认定,将持续推动江川大头鱼产业朝着标准化、品牌化方向发展。

  江川大头鱼仅分布于滇中玉溪市的星云湖和杞麓湖,生活在中上层水域,以浮游动物为食,既是湖泊生态的“清道夫”,也是维系生物链的关键环节。

图为江川大头鱼。张四春 摄

  张四春介绍,受生态变迁和外来物种入侵影响,江川大头鱼曾濒临绝迹,1989年被列为国家二级重点保护野生动物。为保护这一珍稀物种,2000年,江川区畜牧水产站设立江川大头鱼原种站,积极探索人工驯养、繁殖等技术,并于2009年以来,实现每年常态化向辖区内的星云湖放流江川大头鱼,达到丰富生物多样性的效果。

  据统计,2009年至今,江川区先后向星云湖放流江川大头鱼鱼苗1429万尾、大规格鱼种45吨。此外,大力推广适宜水库池(坝)塘的养殖,以此增加当地民众收入。

  目前,江川大头鱼的养殖水域已覆盖江川96%的适宜水库池(坝)塘,年产量逾60吨。该鱼口感鲜美,当地售价每公斤约100元,运至北京、上海、广东等地每公斤逾300元。

  张四春表示,江川区将加强对江川大头鱼地理标志产品的管理,同时加大宣传推广力度等,让这条承载着古滇文化记忆的“生态鱼”,成为带动民众增收、助力乡村振兴的“致富鱼”。

  值得一提的是,近年来,江川大头鱼原种站还先后突破星云白鱼、云南倒刺鲃、抚仙四须鲃、杞麓鲤、花鲈鲤、抚仙金线鲃6种云南特有鱼种的人工驯养繁殖关,并实现前4种鱼的放流。此外,花鲈鲤、抚仙金线鲃属国家二级重点保护野生动物,预计5年内能实现放流。(完)

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