Recently, a video showing ‘a large number of fish frozen in sea ice at a park in Tianjin’ has sparked widespread attention online. Verified reports indicate the incident occurred in a coastal park near Beitang Fishing Port in Binhai New Area, Tianjin. Due to an intense cold snap, local temperatures dropped below -10°C, causing seawater in shallow areas to freeze. Small fish that failed to swim to deeper waters became trapped in the ice, creating a rare spectacle of ‘frozen fish en masse.’Experts explain that seawater, due to its high salinity, typically freezes only below -2°C—much lower than freshwater. However, under extreme cold, low wind conditions, and in shallow waters, localized sea ice can still form. The affected fish were mostly small coastal species highly sensitive to temperature changes; without timely migration during the cold wave, they became immobilized.Local authorities have inspected the site and urged the public not to believe unverified online content. They also noted that while this phenomenon is a natural result of extreme weather, it highlights the potential impacts of climate change on marine ecosystems. Enhanced early-warning systems for extreme weather and stronger ecological protection measures are needed to mitigate such events’ effects on biodiversity.
近日，一则关于‘天津一公园海水结冰，大量鱼群被冻住’的视频在网络上引发广泛关注。经核实，该事件发生于天津市滨海新区的北塘渔港附近一处临海公园水域。由于近期遭遇强冷空气侵袭，当地气温骤降至零下10℃以下，导致部分浅水区域海水结冰。一些未能及时游向深水区的小型鱼类被困在冰层中，形成‘鱼群被冻住’的罕见景象。专家指出，海水因含盐量高，通常比淡水更难结冰，一般需在-2℃以下才开始冻结。但在极端低温、风力较小且水体较浅的条件下，局部海域仍可能出现结冰现象。此次事件中的鱼群多为小型近岸鱼类，对水温变化敏感，在寒潮来袭时若无法迅速迁徙，便容易受困。相关部门已对现场进行勘查，并提醒公众勿轻信未经核实的网络信息。同时强调，此类现象虽属自然气候所致，但也反映出气候变化对海洋生态系统的潜在影响。未来应加强极端天气预警与生态保护措施，以减少类似事件对生物多样性的冲击。
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