EFFECTS OF IONIZING RADIATION ON OSMOREGULATION IN FISH ONCORHYNCHUS KISUTCH
EFFECTS OF IONIZING RADIATION ON OSMOREGULATION IN FISH ONCORHYNCHUS KISUTCH
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DOI：
10.1016/0010-406x(65)90133-7
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发表时间：
1965-01-01
期刊：
影响因子：
--
通讯作者：
CONTE, FP
中科院分区：
文献类型：
--
作者：
CONTE, FP
当从低渗环境转移到高渗环境（0%c-30%o盐度）时，在剂量>1000 r的X-辐射之后，幼银鲑的存活率降低。照射后60天仍在盐和淡水中的存活者被处死，以测定血浆钠、氯和渗透浓度。在对照组（0 r）和辐照组（> 1200 r）的咸水鱼中，观察到了增加的水平（P< 0.005，>0.01）;而在淡水中，辐照组和未辐照组的鱼之间没有出现显著的升高。在咸水鱼的组织病理学变化的网站被发现主要在肾外系统（鳃，盲肠和肠）与严重损害的鳃板。肾脏无明显损伤。在接受相同剂量辐照但仍留在淡水中的鱼中未观察到组织病理学变化。
Decreased survival occurred for juvenile coho salmon following doses of X-radiation >1000 r when transferred from hypo-osmotic to a hyperosmotic environment (0%c-30%o salinity). Survivors which had remained in salt and fresh water 60 days post-irradiation were sacrificed for plasma sodium, chloride and osmotic concentrations. Increased levels (P< 0.005, >0.01) were noted between the control (0 r) and the irradiated (> 1200 r) group of saltwater fish; while no significant elevations occurred between irradiated and non-irradiated fish remaining in fresh water. Sites of histopathological changes in saltwater fish were found principally in the extrarenal system (gills, caecae and intestine) with severe damage noted in the gill lamellae. No damage was apparent in the kidney. No histopathological changes were noted in fish receiving the same amount of irradiation but which remained in fresh water.