看看美國怎么給魚分級

水寶寶

這是美國Clear Spring Foods,Inc的養殖場，看別人怎么給魚分級。（轉自新浪微博博友 湖北FishMan110）

any

這個有意思，呵呵

蔓延

能讓作者完整呈現一下嗎？多發點圖片啊！加點解說詞！

wangmeiyu

確實需要解說。

水寶寶

看看微博上多說些什么吧。

胡路怡

Partitioned Aquaculture Systems （分區水產養殖系統），
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.  
分區水產養殖系統（PAS）在克萊姆森大學開發相結合的循環過程控制優勢，成本較低的池塘養殖的水產養殖業。許多傳統池塘養殖的管理問題掛鉤每天氧氣生產的晝夜交替和長遠的打蠟和不受控制的池塘中的藻類光合作用減弱。連續池塘富營養化驅動光合作用;然而，在傳統池塘藻類種群非托管通常每天只產生2至3克C fixation/m2。與低能黑臭散裝池塘里的水混合，藻類固碳率可提高。（通常被稱為“高速率藻類塘”）這種技術可以維持10到12 g C/m2每天的藻類產量。這個藻類光合作用的增加了類似的增長
在池塘里的水解毒（氨氮去除率）和一個太陽能驅動的氧氣生產系統的速度。考績制度疊加后的水的速度場池塘，使得它有可能重新進入的池塘養魚，氣體交換，藻類生長和廢物的過程分開，可控車廂治療。一個高光合作用率可能solarpowered生物廢物處理能力，是可持續的（不像化石燃料系統）。考績制度適應藻類生產產生一個可持續的，lowimpact，高收益，更可控的魚生產過程

胡路怡

這個設計應該拿來養虹鱒。

水產人生

魚也要分級，這么講究，還是第一次聽說，國內流行這樣做嗎

網絡創業

{:soso_e179:}學習了