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乐山新闻联播‖时隔8年 “水中大熊猫”桃花水母再现犍为
乐山新闻联播 2025-06-18 18:10:01

近日,犍为县玉屏镇观音岩水库巡查员陈银在水库开展巡护监测时,发现水中出现大量透明伞状的水生物,经专家初步鉴定,该水生物为国家一级保护动物、被誉为“水中大熊猫”的桃花水母。

犍为县玉屏镇观音岩水库巡查责任人  陈永银:我在巡查水库时在堤坝边水库边边上发现了很多白色漂浮起,一伸一缩游动的白色水生物,觉得稀奇,来没看到过这个东西,仔细看才发现有点疑似水母。

桃花水母是地球上最原始、最低等的无脊椎腔肠动物,已存在超6亿年,是名副其实的“活化石”,其直径一般在1到2厘米,伞体边缘分布着细密的触手,宛如绽放的桃花。

犍为县农业农村局水产专家  陈琼:桃花水母的休眠体桃花水螅可在地下暗河存活数十年,当雨季水位上升、水温适宜时,休眠体随地下水涌出地表发育成水母。

为什么桃花水母会在玉屏镇出现?陈琼表示,这是由于玉屏镇周边有未受干扰的地下溶洞,是桃花水母的天然“种质库”。

犍为县农业农村局水产专家  陈琼:它在玉屏镇自然水域现身,直接证明当地水体洁净度、酸碱度、矿物质含量等指标达到极高标准,是生态环境的“活体检测仪”。

早在2017年,桃花水母就曾现身清溪镇。目前全世界已发现的桃花水母共有11种,我国分布有9种,其中3种被列入国家濒危动物红色名录中的极危物种,5种被列入濒危级物种。后续,犍为县农业农村局将采集样本送乐山师范学院生物系,对其具体种属进行专业鉴定。

(本台记者 周柳 犍为融媒 李旭东 岑东)


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