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Effect of flow velocity on the growth, stress and immune responses of turbot (Scophthalmus maximus) in recirculating aquaculture systems
Li, Xian1,2,3; Ji, Liqin1; Wu, Lele1; Gao, Xiaolong1; Li, Xueqin1; Li, Jun1; Liu, Ying2,4
2019-03-01
Source PublicationFISH & SHELLFISH IMMUNOLOGY
ISSN1050-4648
Volume86Pages:1169-1176
Corresponding AuthorLiu, Ying(yingliu@dlou.edu.cn)
AbstractLand-based recirculating aquaculture systems (RAS) are widely utilized for turbot (Scophthalmus maximus) culture. Flow velocity in the tank is essential to maintain water quality, conservation of energy and fish welfare. However, little is known about how turbot respond to different velocities in the long term. In this study, water quality was kept constant, allowing the effect of flow velocity on the feeding intake, growth, plasma biochemical indexes, innate (non-specific) immunity and immune-related stress gene expressions in the skin to be examined in isolation in RAS. Turbot (average body length 20.10 cm) were reared for 60 days in RAS under three velocities, 0.06 m s(-1), 0.18 m s(-1), and 0.36 m s(-1), corresponding to approximately 0.3 body length per second (bl s(-1)), 0.9 bl s(-1) and 1.8 bl s(-1), respectively. The results showed that at velocities of 0.36 m s-(1) (1.8 bl s(-1)), juvenile turbot were subject to stress accompanied by a reduced growth rate. A velocity of 0.36 m s(-1) was also found to significantly reduce SOD and GSH activity, and the concentration of total protein in plasma, while concentrations of urea nitrogen (BUN) and total bilirubin (TBIL) increased. There was an up-regulation of cathepsin D and lysozyme (LZM) in the skin at the highest velocity, implying the activation of stress and immune responses. At the medium velocity of 0.18 m s(-1) (0.9 bl s(-1)), turbot increased their feed intake, obtained an elevated special growth rate (SGR), and exhibited significantly higher AKP and ACP activity in plasma. Overall, the results suggest that excessively high velocities are a stressor for turbot inducing an immune response in the skin, which is sensitive to environmental changes. A velocity of approximately 0.9 bl s(-1) is suggested to promote growth and obtain better innate immunity of cultured turbot.
KeywordScophthalmus maximus Flow velocity Growth Innate immune responses
DOI10.1016/j.fsi.2018.12.066
Indexed BySCI
Language英语
Funding ProjectNational Key R&D Program of China[2017YFD0701700] ; Key R&D Program of Shandong Province[2018GHY115031] ; China Agriculture Research System[CARS-47] ; key program of Qingdao Innovation and Demon-striation in Marine Economy Development
WOS Research AreaFisheries ; Immunology ; Marine & Freshwater Biology ; Veterinary Sciences
WOS SubjectFisheries ; Immunology ; Marine & Freshwater Biology ; Veterinary Sciences
WOS IDWOS:000459528400130
PublisherACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/155482
Collection实验海洋生物学重点实验室
Corresponding AuthorLiu, Ying
Affiliation1.Chinese Acad Sci, Inst Oceanol, Key Lab Expt Marine Biol, Qingdao 266071, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Fisheries Sci & Food Prod Proc, Qingdao 266235, Peoples R China
3.Chinese Acad Sci, Ctr Ocean Mega Sci, 7 Nanhai Rd, Qingdao 266071, Peoples R China
4.Dalian Ocean Univ, Sch Marine Sci & Environm Engn, Dalian 116023, Peoples R China
First Author AffilicationKey Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Li, Xian,Ji, Liqin,Wu, Lele,et al. Effect of flow velocity on the growth, stress and immune responses of turbot (Scophthalmus maximus) in recirculating aquaculture systems[J]. FISH & SHELLFISH IMMUNOLOGY,2019,86:1169-1176.
APA Li, Xian.,Ji, Liqin.,Wu, Lele.,Gao, Xiaolong.,Li, Xueqin.,...&Liu, Ying.(2019).Effect of flow velocity on the growth, stress and immune responses of turbot (Scophthalmus maximus) in recirculating aquaculture systems.FISH & SHELLFISH IMMUNOLOGY,86,1169-1176.
MLA Li, Xian,et al."Effect of flow velocity on the growth, stress and immune responses of turbot (Scophthalmus maximus) in recirculating aquaculture systems".FISH & SHELLFISH IMMUNOLOGY 86(2019):1169-1176.
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