The blood osmotic pressure of the terrestrial isopods Porcellio scaber latr. and Oniscus asellus L., with reference to the effect of temperature and body size

Comparative biochemistry and physiology Pub Date : 1970-12-15 DOI:10.1016/0010-406X(70)90096-4

Ossi V Lindqvist

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引用次数: 18

Abstract

1.
1. The blood osmotic pressure in the terrestrial isopod Porcellio scaber varies inversely with the acclimation temperature (as measured at 3, 23 and 30°C). This species also has decreasing osmotic pressures with increasing size.
2.
2. Between 23 and 30°C smaller animals did not show any difference in their blood oxmotic pressure, while in larger animals the blood concentration remained unchanged between 23 and 3°C.
3.
3. Moulting animals as well as ovigerous females have lowered osmotic pressures. There was no influence of sex on the osmotic value in intermoult animals.
4.
4. The blood concentration of Oniscus asellus was not related to body size when measured at 23°C.
5.
5. Some ecological and metabolic implications of these findings are discussed.

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陆生等足类动物的血液渗透压比较晚。参考温度和体型的影响，研究了蛇尾草(Oniscus asellus L.)

1.1. 陆生等足动物Porcellio scaber的血液渗透压与驯化温度(3、23和30℃)成反比。该物种的渗透压也随着尺寸的增大而减小。在23 - 30°C之间，较小的动物的血氧压没有任何差异，而较大的动物的血氧浓度在23 - 3°C之间保持不变。蜕皮动物和卵生的雌性动物都降低了渗透压。在换毛动物中，性别对渗透值没有影响。在23°C.5.5条件下，蛇尾草血药浓度与体型无关。讨论了这些发现的一些生态学和代谢学意义。

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Comparative biochemistry and physiology

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