Natochin Iu V, Lavrova E A, Parnova R G, Shakhmatova E I
Zh Evol Biokhim Fiziol. 1988 Nov-Dec;24(6):822-8.
In animals in which sodium is a predominant cation of the blood serum or haemolymph (rat, newt Triturus vulgaris, sturgeon Acipenser güldenstädti, herring Clupea pallasi, ascidian Goniocarpa rustica), its content in the body amounts up to a half of the total bulk of electrolytes; in insects with potassium type of the haemolymph, the share of sodium is equal to 6.4%. In animals of the same species, total electrolyte content (sodium, potassium, calcium, magnesium) and the relationship between separate ions were found to be remarkably constant. During ontogenetic development of the sturgeon and herring, as well as in rat embryos beginning from the 15th day of gestation, the ratio between separate cations exhibits significant conservatism.
在血清或血淋巴中钠是主要阳离子的动物（大鼠、普通蝾螈、俄罗斯鲟、太平洋鲱、粗糙角海鞘）体内，钠的含量高达电解质总量的一半；在血淋巴为钾型的昆虫中，钠的占比为6.4%。在同一物种的动物中，总电解质含量（钠、钾、钙、镁）以及各离子之间的关系非常恒定。在鲟鱼和鲱鱼的个体发育过程中，以及在大鼠胚胎从妊娠第15天开始发育时，各阳离子之间的比例表现出显著的保守性。
