养殖业板块9月19日跌0.24%，天域生物领跌，主力资金净流出3.4亿元

Market Overview - The aquaculture sector experienced a decline of 0.24% on September 19, with Tianyu Biological leading the drop [1] - The Shanghai Composite Index closed at 3820.09, down 0.3%, while the Shenzhen Component Index closed at 13070.86, down 0.04% [1] Stock Performance - Notable gainers in the aquaculture sector included: - *ST Tianshan: Closed at 8.61, up 2.26% with a trading volume of 73,600 shares and a turnover of 62.33 million yuan [1] - Shengnong Development: Closed at 17.16, up 1.12% with a trading volume of 82,000 shares and a turnover of 140 million yuan [1] - Major decliners included: - Tianyu Biological: Closed at 86.8, down 2.39% with a trading volume of 181,700 shares and a turnover of 165 million yuan [2] - Huaying Agriculture: Closed at 2.78, down 2.11% with a trading volume of 275,400 shares and a turnover of 76.74 million yuan [2] Capital Flow - The aquaculture sector saw a net outflow of 340 million yuan from institutional investors, while retail investors contributed a net inflow of 271 million yuan [2] - Notable capital flows included: - Juxing Agriculture: Net inflow from institutional investors of 28.39 million yuan, with a net outflow from retail investors of 38.24 million yuan [3] - Tianyu Biological: Net inflow from retail investors of 11.12 million yuan, with a net outflow from institutional investors of 1.28 million yuan [3]