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在高密度集約化的過程中，在夏季高溫季節(jié)或初秋溫差較大時，常出現(xiàn)池水渾濁現(xiàn)象，景觀水質(zhì)的渾濁會影響魚兒攝食。水體中懸浮的有機(jī)質(zhì)會大量消耗池中溶氧，從而導(dǎo)致魚類缺氧浮頭。由于景觀湖長時間缺氧，會導(dǎo)致原滋生，出現(xiàn)渾濁的景觀湖進(jìn)行換水處理后，情況也不見好轉(zhuǎn)。通過仔細(xì)觀察發(fā)現(xiàn)造成水質(zhì)渾濁現(xiàn)象的原因有：水體富營養(yǎng)化，造成藍(lán)綠藻大量繁殖，隨著氣候突變，致使大量藻類死亡，引起水變。死亡藻類的殘體釋放很多有害物質(zhì)敗壞水質(zhì)，使水體的密度變大，底質(zhì)中密度小的物質(zhì)上浮，懸浮于水中，這樣就出現(xiàn)了水質(zhì)渾濁現(xiàn)象。