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为何处暑开渔?时下“顶鲜”水产是啥?专家解读
Yang Shi Wang· 2025-08-23 09:31
处暑节气,我国沿海地区再度迎来一年一度的开渔盛典。为啥老祖宗偏偏选处暑开渔?咋就不怕气候变 化,年年都能准时"打卡"?最关键的是,上海人的餐桌上,这会儿能吃上哪些"顶鲜"的水产?对这份深 植于海洋生态规律的千年智慧,上海海洋大学副教授张玮带来解读。 处暑吃这些正当时 如今,全球多地传统习俗因气候变暖发生改变,但我国沿海的处暑开渔节却历久弥新。这背后,是跨越 千年的生态智慧与动态调整的现代管理在共同发力。 "尽管海水温度有所上升,处暑作为幼鱼育成、饵料丰富、渔汛开启的'黄金窗口'依然有效。"张玮指 出,现代渔业通过建立综合性渔业资源监测网络,动态追踪关键经济物种(如带鱼、小黄鱼、银鲳鱼、 梭子蟹)的种群数量、洄游路线、产卵场分布及幼鱼补充状况。 基于大数据模型分析,渔业管理者得 以科学应对产卵期偏移、优化休渔时间窗口、评估开渔资源基础,并动态调整休渔时间与范围。 这一 系列举措有效保障了处暑开渔的科学性及渔业资源的可持续利用,使古老的"生态时钟"在现代得以精准 校准。 此外,休渔期恰好为渔民提供了修船补网、积蓄力量的时间,处暑开渔则迎来随洋流涌动的秋季鱼汛 (如舟山渔场因冷暖流交汇形成高产),形成"休养-丰收" ...
赣榆“海上粮仓”向深海挺进
Xin Hua Ri Bao· 2025-08-04 23:35
Group 1 - The core idea of the news is the innovative "land-sea relay" aquaculture model in Lianyungang, which aims to transition traditional nearshore aquaculture to deep-sea farming through technological advancements [1][5] - The Lianyungang Ganyu Aquatic Seed Breeding and Modern Aquaculture Demonstration Center utilizes a closed-loop water system that reduces water usage by 90%, decreases the use of veterinary drugs by 80%, and increases the success rate of aquaculture by 20 percentage points [1][2] - The center plans to produce 5,500 tons of South American white shrimp, 2 million salmon fry, and 10 million high-quality fish fry annually, providing a continuous supply of "Ganyu seed sources" for deep-sea aquaculture [2] Group 2 - The delivery of the world's first self-propelled closed salmon farming vessel, "Suhai No. 1," marks the entry of Lianyungang into the "engineering era" of deep-sea aquaculture, capable of producing 3,200 tons of salmon annually [3] - The vessel can adapt to seasonal changes and natural disasters, significantly mitigating risks associated with nearshore farming [3] - Lianyungang is also developing HDPE gravity net cages, which can withstand severe weather conditions and have a lifespan of 10-15 years, enhancing deep-sea farming capabilities [4] Group 3 - The total investment in the Lianyungang Aquatic Seed Breeding and Modern Aquaculture Demonstration Center is 1.5 billion yuan, with 20 factory-style aquaculture workshops already in operation [4] - The region has implemented various marine facility constructions, including the deployment of artificial reefs and large intelligent deep-sea framework net cage platforms [4] - The Lianyungang district aims for a total fishery economic output value of 28.366 billion yuan by 2024, reflecting the high-quality development of the marine economy [5]