看看美国怎么给鱼分级

水宝宝

这是美国Clear Spring Foods,Inc的养殖场，看别人怎么给鱼分级。（转自新浪微博博友 湖北FishMan110）

any

这个有意思，呵呵

蔓延

能让作者完整呈现一下吗？多发点图片啊！加点解说词！

wangmeiyu

确实需要解说。

水宝宝

看看微博上多说些什么吧。

胡路怡

Partitioned Aquaculture Systems （分区水产养殖系统），
The Partitioned Aquaculture System (PAS) developed at Clemson University combines the process control advantage of recirculating aquaculture with the lower cost of pond aquaculture. Many of the management problems of conventional pond culture are linked to the daily diurnal cycles of oxygen production and the longer term waxing and waning of uncontrolled algal photosynthesis in ponds. The continuous nutrient enrichment of a pond drives photosynthesis; however, unmanaged algal populations in conventional ponds typically yield only 2 to 3 g C fixation/m2 per day. Algal carbon fixation rates can be increased with lowenergy paddlewheel mixing of the bulk pond water. This technique (often referred to as a “high rate algal pond”) can sustain algal yields of 10 to 12 g C/m2 per day. With this increase in algal photosynthesis comes a similar increase
in the rate of pond water detoxification (ammonia removal) and a solar-driven oxygen production system. The PAS superimposes a water velocity field upon the
pond, making it possible to reconfigure the pond into separate, controllable compartments for the processes of fish culture, gas exchange, algal growth and waste
treatment. A high rate of  photosynthesis makes possible a solarpowered biological waste treatment capacity that is sustainable (unlike fossil fuel systems). The PAS adapts algal production to produce a sustainable, lowimpact, high-yield, and more controllable fish production process.  
分区水产养殖系统（PAS）在克莱姆森大学开发相结合的循环过程控制优势，成本较低的池塘养殖的水产养殖业。许多传统池塘养殖的管理问题挂钩每天氧气生产的昼夜交替和长远的打蜡和不受控制的池塘中的藻类光合作用减弱。连续池塘富营养化驱动光合作用;然而，在传统池塘藻类种群非托管通常每天只产生2至3克C fixation/m2。与低能黑臭散装池塘里的水混合，藻类固碳率可提高。（通常被称为“高速率藻类塘”）这种技术可以维持10到12 g C/m2每天的藻类产量。这个藻类光合作用的增加了类似的增长
在池塘里的水解毒（氨氮去除率）和一个太阳能驱动的氧气生产系统的速度。考绩制度叠加后的水的速度场池塘，使得它有可能重新进入的池塘养鱼，气体交换，藻类生长和废物的过程分开，可控车厢治疗。一个高光合作用率可能solarpowered生物废物处理能力，是可持续的（不像化石燃料系统）。考绩制度适应藻类生产产生一个可持续的，lowimpact，高收益，更可控的鱼生产过程

胡路怡

这个设计应该拿来养虹鳟。

水产人生

鱼也要分级，这么讲究，还是第一次听说，国内流行这样做吗

网络创业

{:soso_e179:}学习了