Journal of Marine Biology and AquacultureJournal of Marine Biology and AquacultureJournal of Marine Biology and AquacultureJournal of Marine Biology and Aquaculture2381-0750Ommega Online PublishersNew Jersey, USA167110.15436/2381-0750.18.1671Research ArticleCompensatory Growth of the Juvenile Brown Flounder Paralichthysolivaceus Following Being Kept at High Temperature for a Single Phase of Different LengthCompensatory Growth of the Juvenile Brown Flounder Paralichthysolivaceus Following Being Kept at High Temperature for a Single Phase of Different LengthGuoqiangHuang1Guangxi Key Laboratoryof Marine Biotechnology Guangxi Institute of Oceanology Beihai 536000 China2Ocean college Qinzhou University Qinzhou 535011 China3Key Laboratory of Mariculture Ministry of Education Ocean University of China Qingdao 266003 ChinaEditor* E-mail: hugh7531@163.com
The authors have declared that no competing interests exist.
20182003201841JMBA-17-RA-167106092017150320182018Creative Commons Attribution LicenseThis is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. nbsp nbsp nbsp The compensatory growth of juvenile brown flounder Paralichthysolivaceus with an average initial weight of 0 8g exposed to high temperature for a single phase of different length was determined Nine hundred juvenile flounders were randomly distributed in 15 re-circulating glass aquaria The fish were exposed to high temperature 26 deg C for 0 control group 10 20 30 and 40 days followed by optimal temperature 20 deg C for 70 60 50 and 40 days respectively The weights of fish exposed for 10 and 20 days to 26 deg C were recovered to the levels of control fish while those of the other two treatments for 30 and 40 days to 26 deg C were still significantly lower than the control During the high temperature stress for different length weight specific growth rate SGR and feed conversion efficiency FCE of fish were significantly lower while the feeding rate FR were higher P lt 0 05 than those of fish in the control treatment P lt 0 05 There were no significant differences in feeding rate between the high temperature for 10 and 20 days and control treatment during the recovery period The feed conversion of high temperature exposed fish improved in recovery periods but not exceed the control treatment Analysis of the data indicated that the compensatory growth in the recovery period depended on greatly improved feed conversion efficiency and slightly higher feeding rate Results of this study support a reference function and have practical significance for juvenile P olivaceus culture and enhancement10