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幼龄大西洋鲑(Salmo salar L.)在洄游期间及转入海水后的肠道水分运输

Intestinal water transport in juvenile Atlantic salmon (Salmo salar L.) during smolting and following transfer to seawater.

作者信息

Usher M L, Talbot C, Eddy F B

机构信息

Department of Agriculture and Fisheries for Scotland, Freshwater Fisheries Laboratory, Pitlochry, Perthshire, U.K.

出版信息

Comp Biochem Physiol A Comp Physiol. 1991;100(4):813-8. doi: 10.1016/0300-9629(91)90297-p.

DOI:10.1016/0300-9629(91)90297-p
PMID:1685374
Abstract
  1. The rate of mucosal to serosal water movement was measured in vitro in non-everted midgut segments in Atlantic salmon (Salmo salar L.) during parr-smolt transformation (February-July) and following transfer of smolts to seawater in May. 2. The rate increased significantly during smolting from 5.61 microliters/cm2/hr in the parr (February) to 11.03 microliters/cm2/hr in smolts in May. 3. Measured at intervals over a period of 20 days in seawater, the rate of water transport was not significantly different from that found in the freshwater-adapted smolts (11.20 microliters/cm2/hr). 4. Intestinal water transport is sodium-linked and inhibited by ouabain but is not stimulated by cortisol.
摘要
  1. 在大西洋鲑(Salmo salar L.)从幼鲑向幼鲑转化期间(2月至7月)以及5月将幼鲑转移到海水中之后,在体外测量了非外翻中肠段黏膜到浆膜的水移动速率。2. 在幼鲑化过程中,该速率从2月幼鲑时的5.61微升/平方厘米/小时显著增加到5月幼鲑时的11.03微升/平方厘米/小时。3. 在海水中20天的时间间隔内进行测量,水运输速率与适应淡水的幼鲑中发现的速率(11.20微升/平方厘米/小时)没有显著差异。4. 肠道水运输与钠相关,受哇巴因抑制,但不受皮质醇刺激。

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