Writing in the Tang Dynasty, the poet Zhang Zhihe evoked a timeless pastoral scene: white egrets in flight before the peaks of Xisi Mountain, mandarin fish fattening in the peach-blossom currents below. He could scarcely have anticipated that, more than a millennium later, the foremost anxiety confronting Chinese aquaculture operators would not be any scarcity of mandarin fish, but rather fluctuating nitrogen concentrations exceeding permissible thresholds in the very ponds where they are cultivated. On 1 May 2026, the comprehensively revised _People's Republic of China Fisheries Law_ entered into force. A colleague of mine — the director of a marine aquaculture enterprise in Fujian — telephoned me on the day his newly issued aquaculture permit was delivered. His words were unambiguous: from that day forward, any failure to meet effluent $NH_3\text{-N}$ discharge standards, to maintain water quality records, or to adopt green disease prevention measures would result not in financial penalties, but in the immediate suspension of operations. The broader data are equally sobering. According to FAO statistics, the proportion of global fish stocks at biologically sustainable levels has declined from 90% in 1974 to 64.6% in 2019. Fishery resources in the South China Sea have contracted by 70%–90% relative to 1950s levels. The extensive production model, long sustained by the drawdown of natural resources, now confronts unprecedented concurrent pressure from both regulatory and market forces. This is not a routine legislative revision. It represents a fundamental reorientation of industrial value. What precisely has the law changed? How should enterprises respond? And what role can technology play? These questions are examined in turn below. ## I. A New Legal Baseline: Why This Revision Marks a Critical Inflection Point The original _Fisheries Law_ was promulgated in 1986 and subsequently amended in 2000, 2004, 2009, and 2013. Yet the most recent substantive revision dates to more than 25 years ago. Much has changed in that interval. When the 2000 amendment was enacted, China's annual aquaculture output stood at approximately 27 million tonnes. By 2025, that figure had surpassed 63 million tonnes — more than double the earlier level. Production modes have evolved from traditional earthen pond systems through recirculating aquaculture systems (RAS), offshore cage operations, and containerised aquaculture units. The original legislative framework had long since ceased to accommodate this transformation. Two distinct forces drove the current revision. The first was ecological pressure. The principle that "lucid waters and lush mountains are invaluable assets" — a cornerstone of China's ecological civilisation doctrine — required legislative operationalisation within the fisheries sector. Aquaculture effluent was identified as a significant contributing factor in cyanobacterial bloom incidents recorded in Lake Taihu and Lake Dongting. In major aquaculture provinces including Guangdong, Hubei, Fujian, and Jiangsu, agricultural-source ammonia nitrogen discharges account for more than 30% of total receiving water loads — a pressure that translated directly into legislative action. The second was food security imperatives. In 2022, global aquaculture production surpassed capture fisheries output for the first time, with China contributing more than 60% of the total. The strategic importance of aquatic protein has continued to rise, necessitating a stable and predictable legal framework to underpin its sustained development. The classical text _Lüshi Chunqiu_ stated plainly over two millennia ago: to drain the pond to catch the fish is surely effective — yet the following year, there shall be no fish. The most consequential conceptual shift embodied in this revision is the transition from the _regulation of capture_ to the _governance of aquaculture_. Aquaculture-related provisions now account for approximately 35% of the law's content, compared with roughly 15% under the previous version. An independent chapter on "ecological aquaculture" has been established for the first time. The total article count has expanded from 50 across 6 chapters to 88 across 7 chapters. Of particular significance, the revised law formally enshrines in statute both an **obligation to promote smart fisheries** and a **system for assessing aquaculture carrying capacity**. Digitalisation is no longer a policy aspiration — it is now a legally prescribed direction of development. ## II. Clause-by-Clause Analysis: Core Provisions of the Revised Law **Reconstitution of the Aquaculture Permit System: From "Registration" to "Ecological Assessment".** Previously, obtaining an aquaculture permit involved relatively straightforward administrative procedures. This is no longer the case. The new law requires applicants to submit, prior to application, a third-party _Aquatic Ecological Environment Carrying Capacity Assessment Report_.
