曾被宣布野外灭绝！重磅消息传来，时隔23年后在天然水域首次实现自然产卵。
<section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, BlinkMacSystemFont, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; white-space: normal; background-color: rgb(255, 255, 255); box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 16px;">3月26日，记者从在四川宜宾市江安县开展的“长江鲟野化繁殖实验”中了解到，此前被宣布“野外灭绝”的长江鲟，时隔23年后在天然水域首次实现自然产卵，并在同一环境下，成功孵化出首批长江鲟幼苗，跨出了恢复野外种群极为关键的一步。</span></section><p><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, BlinkMacSystemFont, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; white-space: normal; background-color: rgb(255, 255, 255); box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 16px;"><br style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"/></span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, BlinkMacSystemFont, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; white-space: normal; background-color: rgb(255, 255, 255); text-align: center; box-sizing: border-box !important; overflow-wrap: break-word !important;"><img class="rich_pages wxw-img __bg_gif" data-ratio="0.5618153364632238" data-s="300,640" src="http://bbs.xishuw.com/plugin.php?id=wcn_editor:wx_img&url=https://mmbiz.qpic.cn/mmbiz_gif/GA0ru2kvgLlQ21mvP812L6jA7kSKLC3ec5vAnjPDLlKjupb8xgpOu4dS6uw0XSkYMKicu0J8xuuhIs8oQApb7Xg/640?wx_fmt=gif&wxfrom=13&tp=wxpic" data-type="gif" data-w="639" data-index="1" _width="639px" __sec_open_place_holder__="true" data-sec-load-status="2" crossorigin="anonymous" data-order="1" alt="图片" style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; vertical-align: bottom; height: auto !important; width: 639px !important; visibility: visible !important;"/></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, BlinkMacSystemFont, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; white-space: normal; background-color: rgb(255, 255, 255); box-sizing: border-box !important; overflow-wrap: break-word !important;"><br style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"/></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, BlinkMacSystemFont, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; white-space: normal; background-color: rgb(255, 255, 255); box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 16px;">此前一周，科研人员将20尾雌雄成体长江鲟放入空间大小45m³的人工产卵巢内，通过精准调控水流速度、模拟产卵河床环境，引导长江鲟在天然水域进行自然产卵。在此过程中，研究团队首次清晰地获得了长江鲟在天然河道中雌雄互作，排卵、受精的珍贵画面，对于研究鲟鱼类繁殖行为及繁殖需求积累了丰实的一手资料。</span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, BlinkMacSystemFont, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; white-space: normal; background-color: rgb(255, 255, 255); box-sizing: border-box !important; overflow-wrap: break-word !important;"><br style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"/></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, BlinkMacSystemFont, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; white-space: normal; background-color: rgb(255, 255, 255); box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 16px;">中国水产科学研究院长江水产研究所研究员杜浩表示，此次实验是从多年来的室内仿生态繁殖成功走向野外自发交配产卵繁殖，为长江鲟实现自然繁殖、恢复重建野外种群带来了新的希望。</span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, BlinkMacSystemFont, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; white-space: normal; background-color: rgb(255, 255, 255); box-sizing: border-box !important; overflow-wrap: break-word !important;"><br style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"/></section></p><p style="margin-top: 0px; margin-bottom: 24px; padding: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, BlinkMacSystemFont, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; white-space: normal; background-color: rgb(255, 255, 255); box-sizing: border-box !important; overflow-wrap: break-word !important;"><img class="rich_pages wxw-img __bg_gif" data-ratio="0.5618153364632238" src="http://bbs.xishuw.com/plugin.php?id=wcn_editor:wx_img&url=https://mmbiz.qpic.cn/mmbiz_gif/GA0ru2kvgLlQ21mvP812L6jA7kSKLC3ePVZ3xXbbMmuldqUibk23DTib7Gm4ia4p8YPdYyRhfQe3odlygXrZe5iasQ/640?wx_fmt=gif&tp=wxpic&wxfrom=5&wx_lazy=1" data-type="gif" data-w="639" height="359" title="1679823119973924.gif" width="639" data-index="2" _width="639px" __sec_open_place_holder__="true" data-order="2" alt="图片" data-fail="0" style="margin: 8px auto !important; padding: 0px; outline: none 0px; max-width: 100%; box-sizing: border-box; overflow-wrap: break-word !important; vertical-align: bottom; height: auto !important; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border-width: 0px; border-style: none; border-color: initial; display: block !important; width: 639px !important; visibility: visible !important;"/></p><p><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, BlinkMacSystemFont, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; white-space: normal; background-color: rgb(255, 255, 255); box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 16px;">长江宜宾江安段属于长江上游珍稀特有鱼类国家级自然保护区，也是国家一级保护动物长江鲟等珍稀鱼类的传统栖息地和产卵场。科研调查显示，2000年以来，长江鲟野外繁殖停止；2022年7月21日，国际自然与自然资源保护联盟发布全球濒危物种红色目录更新报告，宣布长江鲟野外灭绝。</span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, BlinkMacSystemFont, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; white-space: normal; background-color: rgb(255, 255, 255); box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 16px;"><br style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"/></span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, BlinkMacSystemFont, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei UI, Microsoft YaHei, Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; white-space: normal; background-color: rgb(255, 255, 255); box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px; color: rgb(136, 136, 136);">来源：央视新闻</span></section></p><p><br/></p><link rel="stylesheet" href="http://bbs.xishuw.com/source/plugin/wcn_editor/public/wcn_editor_fit.css?v133_spN" id="wcn_editor_css"/> 这个之前不是说灭绝了吗？现在怎么又有了？ 为长江鲟实现自然繁殖，恢复重建野外种群带来了新的 希望 看来是有希望了，是已经培育出来了吗 不是灭绝了吗？怎么弄出来的啊 是什么原因灭绝，是不在野外产卵吗 宜宾的化工厂应该拆迁了吗哦哦哦
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