Acid-base status in the sea urchins Psammechinus miliaris and Echinus esculentus (Echinodermata: Echinoidea) during emersion
Acid-base status in the sea urchins Psammechinus miliaris and Echinus esculentus (Echinodermata: Echinoidea) during emersion
复制标题
海胆 Psammechinus miliaris 和 Echinus esculentus（棘皮动物门：海胆总科）浮现期间的酸碱状态
DOI：
10.1007/bf00392560
复制
发表时间：
1988
期刊：
影响因子：
2.4
通讯作者：
A. Hill
中科院分区：
文献类型：
--
作者：
John I. Spicer;Alan C. Taylor;A. Hill
本文研究了两种海胆Psammechinus miliaris（Gmelin）和Echinus esculentus（L.）在实验重现期间进行了研究。海胆收集了从湾的克莱德1987年8月至9月。粟粒对虾体腔液的CO2容量大于E.虽然两者都很低，只是略高于海水。体腔液的pH值也很低（7.05至7.17），主要受内部CO2分压（PCO 2）的影响。两个物种的体腔液中的酸碱紊乱在羽化过程中，虽然最小，但在E。Esculentus的体内PCO_2浓度高于P. miliaris，主要是由于E. miliaris体内PCO_2浓度的增加，而E. miliaris体内L-乳酸浓度的增加是由于E. miliaris体内PCO_2浓度的增加。食用油这两个物种的体腔液处于完全代偿性呼吸性酸中毒状态。二价离子（Ca 2+和Mg 2+）浓度的增加可能与作为碳酸盐缓冲液来源的供试品溶出有关。
The acid-base status of two sea urchins, Psammechinus miliaris (Gmelin) and Echinus esculentus (L.) during experimental emersion has been investigated. Sea urchins were collected from the Firth of Clyde between August and September 1987. The carbon dioxide capacity of the coelomic fluid of P. miliaris was greater than that of E. esculentus, although both were low and only marginally greater than that of sea water. The pH of the coelonic fluid was also low (7.05 to 7.17) and was influenced mainly by the internal partial pressure of CO2 (PCO2). Acid-base disturbance in the coelomic fluid of both species during emersion, although minimal, was more pronounced in E. esculentus than in P. miliaris and was due primarily to an increase in the internal PCO2, although there was an increase in the concentration of L-lactate in the coelomic fluid of E. esculentus. The coelomic fluid of both species was in a state of perfectly compensated respiratory acidosis. An increase in the concentration of divalent ions (Ca2+ and Mg2+) may be related to the dissolution of the test as a source of carbonate buffer.