DOI: 10.1016/j.aquaculture.2020.735093
论文题名: Extreme ambient temperature effects in European seabass, Dicentrarchus labrax: Growth performance and hemato-biochemical parameters
作者: Islam M.J. ; Slater M.J. ; Bögner M. ; Zeytin S. ; Kunzmann A.
刊名: Aquaculture
ISSN: 448486
出版年: 2020
卷: 522 语种: 英语
英文关键词: Aquaculture
; Climate change
; Erythrocytes
; Hematological parameters
; Temperature extreme
Scopus关键词: aquaculture production
; biochemical composition
; blood
; climate change
; environmental factor
; extreme event
; growth response
; salmonid fishery
; temperature profile
; Dicentrarchus labrax
英文摘要: Extreme weather events are increasing with global climate change and are of concern to aquaculture and fisheries scientists and producers. Temperature is a key environmental factor determining fish growth and metabolism. Hence, the following study was conducted to investigate the effect of extreme temperature events on the growth and hematological parameters of European seabass, Dicentrarchus labrax. Fish were exposed to 8 °C, 16 °C, 24 °C, 32 °C for 30 days mimicking temperature extreme events. Growth performance measured as final weight, weight gain, specific growth rate, survival rate, and temperature growth coefficient was significantly impaired (p < .05) at 8 °C and 32 °C compared to 16 °C and 24 °C. Hepatosomatic index (HIS), viscera somatic index (VSI), intestine somatic index (ISI) and spleen somatic index (SSI) were significantly (p < .05) lower for fish at 8 °C and 32 °C. White blood cell (WBC), plasma triglycerides and lactate were significantly (p < .05) increased at 8 °C and 32 °C, while plasma glucose, total protein and red blood cell (RBC) exhibited the inverse trend. Erythrocytes cellular abnormalities (ECA) and Erythrocyte nuclear abnormalities (ENA) frequencies were found to be significantly (p < .05) higher for fish reared at 8 °C and 32 °C. Among treatments, both ECA and ENA frequencies were found to be higher at day 10 compared to day 20 and 30. European seabass clearly exhibit significant physiological alterations and marked performance reduction during extreme temperatures of 8 °C and 32 °C, many of which are not compensated for by physiological adaptation. Results are discussed in terms of potential production impacts and mitigation options for European seabass culture during extreme temperature events. © 2020 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/158173
Appears in Collections: 气候变化与战略
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作者单位: Leibniz Centre for Tropical Marine Research (ZMT), Bremen, 28359, Germany; Alfred-Wegener-Institute, Helmholtz-Center for Polar and Marine Research, Bremerhaven, 27570, Germany
Recommended Citation:
Islam M.J.,Slater M.J.,Bögner M.,et al. Extreme ambient temperature effects in European seabass, Dicentrarchus labrax: Growth performance and hemato-biochemical parameters[J]. Aquaculture,2020-01-01,522