Physiological and morphological effects of severe hypoxia, hypoxia and hyperoxia in juvenile turbot (Scophthalmus maximus L.)

CORC > 海洋研究所 > 中国科学院海洋研究所 > 实验海洋生物学重点实验室

	Physiological and morphological effects of severe hypoxia, hypoxia and hyperoxia in juvenile turbot (Scophthalmus maximus L.)
	Wu, Zhihao; You, Feng; Wen, Aiyun; Ma, Deyou; Zhang, Peijun
刊名	AQUACULTURE RESEARCH
	2016
卷号	47 期号:1 页码:219-227
关键词	juvenile turbot Scophthalmus maximus hyperoxia and hypoxia respiratory rate haematological parameter acid-base balance gill structure
英文摘要	We studied the physiological status of juvenile turbot (Scophthalmus maximus L.) under severe hypoxia (1 and 2 mg/L dissolved oxygen, DO), hypoxia (3 and 5 mg/L DO), hyperoxia (11 and 14 mg/L DO) and normoxia (7 mg/L DO, control) conditions. The respiratory rates, haematology parameters, acid-base balance status and gill structure were analysed to find the effects of different DO concentration on turbot. Fish mortality was only observed under severe hypoxia conditions. Severe hypoxia caused an increase in respiratory rates and red blood cell counts, as well as an increase in haemoglobin and haematocrit levels in the fish. In fish exposed to hypoxia conditions, the respiratory rate increased overall as the DO concentration decreased. Lower pCO(2) and HCO3- levels led to a high blood pH, while the pO(2) remained stable. In hyperoxia groups, respiratory rate decreased as the DO concentration increased. The levels of pCO(2) and HCO3- significantly increased (P < 0.05), while the pO(2) level and blood pH did not change obviously. The gill structure was damaged after prolonged exposure to hyperoxia, but no obvious damage was found in hypoxia groups. The fish that survived the hypoxia or hyperoxia treatment were able to restore the structural integrity of the gills after 14 days' recovery. The results suggest that juvenile turbots can tolerate a wide range of DO concentrations. However, even mild hyperoxia condition (11 mg/L DO), which is widely used in fish culture, has adverse effects on juvenile turbot physiology.
收录类别	SCI
语种	英语
WOS记录号	WOS:000367724800018
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.qdio.ac.cn/handle/337002/95206]
专题	海洋研究所_实验海洋生物学重点实验室
作者单位	Chinese Acad Sci, Inst Oceanol, Key Lab Expt Marine Biol, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Wu, Zhihao,You, Feng,Wen, Aiyun,et al. Physiological and morphological effects of severe hypoxia, hypoxia and hyperoxia in juvenile turbot (Scophthalmus maximus L.)[J]. AQUACULTURE RESEARCH,2016,47(1):219-227.
APA	Wu, Zhihao,You, Feng,Wen, Aiyun,Ma, Deyou,&Zhang, Peijun.(2016).Physiological and morphological effects of severe hypoxia, hypoxia and hyperoxia in juvenile turbot (Scophthalmus maximus L.).AQUACULTURE RESEARCH,47(1),219-227.
MLA	Wu, Zhihao,et al."Physiological and morphological effects of severe hypoxia, hypoxia and hyperoxia in juvenile turbot (Scophthalmus maximus L.)".AQUACULTURE RESEARCH 47.1(2016):219-227.