The benthos supply largely depends on water quality. With high levels of salinity in areas near fishponds, algae grow in abundance. They use up the oxygen in the water and soil, killing the benthos. It is therefore necessary to remove the algae and then get to the root of the problem by improving water quality and reviving the hydrologic cycle.
由於底棲生物是否生長良好，與水質好壞有關，靠近漁塭的棲地因為鹽分高，藻類大量滋生，使得水和土壤嚴重缺氧（即優養化），底棲生物死亡，所以必須先移除藻類，再進行水質改善和恢復水文循環的治本工作；優養化嚴重的土壤，則要以翻土的方式，讓土壤重新接觸氧氣。