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海水中的有机物的含量微少,约为0.5-2.0C mg／L,但其种类复杂。其中以溶解有机物(DOM)为主,而颗粒有机物(POM)所占比例则更少。大洋海水中的POM主要来源于浮游生物等的死骸及其分解碎屑;另外还有海水中受风浪影响所进行的DOM POM的动力平衡产物。近岸海水还受河流和大气带入的陆源尘影响。POM主要由颗粒氨基酸(PAA)组成。即由Asp、Glu、Thr、Ser、Ala、Gly、Leu、Ile、Val、Met、Cys、Tyr、Lys、His、Arg、Phe、Pro等17种氨基酸组成。它们是食碎动物的
The content of organic matter in seawater is small, about 0.5-2.0C mg / L, but its species is complex. Among them, dissolved organic matter (DOM) dominated, whereas particulate organic matter (POM) accounted for a smaller proportion. POM in oceanic seawater is mainly derived from the dead bodies of plankton and its decomposition debris; in addition, there is the dynamic equilibrium product of DOM POM that is affected by wind and waves in seawater. Coastal seawater is also affected by terrestrial dust brought in by rivers and the atmosphere. POM is mainly composed of granular amino acids (PAA). It consists of 17 kinds of amino acids including Asp, Glu, Thr, Ser, Ala, Gly, Leu, Ile, Val, Met, Cys, Tyr, Lys, His, Arg, Phe and Pro. They are crushed animals