Survival rate,oxygen consumption rate and immune enzymetic activity of Mizuhopecten yessoensis at high temperatureChinese Full Text
HAO Zhen-lin;TANG Xue-jiao;DING Jun;BEN Yue;CHANG Ya-qing;Key Laboratory of Mariculture ＆ Stock Enhancement in North China’s Sea,Ministry of Agriculture of China,Dalian Ocean University;
Abstract: Different temperature heating modes were designed to study the response of two-size scallops（ 10 months and 46 months old） at different high temperature levels（ 20,22,24,26,28 ℃） and their capabilities in resisting high temperature under different heating modes（ slow heating and abrupt heating）,and the survival rate,oxygen consumption rate and immune enzyme activity were investigated in this paper. In the slow heating pattern,scallops reared in 15 ℃ were acclimatized to the different temperature levels 20,22,24,26 and 28 ℃（ temperature increased1 ℃ per day）,and then maintained for 15 days. In the abrupt heating pattern,the rearing temperature was increased from 15 to 20,24,and 28 ℃ at a rate of 4 ℃ per day,and maintained for 1 day. The results showed that the survival rates of scallops decreased with increasing the temperature under the slow heating mode,and the survival rates of 46-and 10-month-old scallops were 96. 7% and 77. 3% at 28 ℃ respectively. The 46-month-old scallops had a significantly higher survival rate than the 10-month-old ones when they were exposed to each temperature treatment（ P ＜ 0. 05）. The two-size scallops had similar oxygen consumption changes under the test temperature treatments,firstly the oxygen consumption increase,followed by a quick decrease with rising the water temperature. The 10-month-old scallops had a significantly higher oxygen consumption rate than the 46-month-old ones when they exposed to 15-24 ℃ temperature（ P ＜0. 05）. When water temperature reached 28 ℃,the oxygen consumption rates of 46- and 10-monthold scallops both dropped to the lowest with values at 0. 482 and 0. 527 mg·g- 1·h- 1,respectively.The related immune enzyme activities of the two-size scallops also had a similar change at the variable temperatures,however,the 46-month-old scallops had a significantly higher value for the immune enzyme activities than the small-size ones when they were in the same treatment（ P ＜0. 05）. In a word,our results suggested that the larger scallops had a stronger capability in resisting high temperature compared with smaller ones under different heating modes.
Keywords：
Mizuhopecten yessoensis; high temperature; survival rate; oxygen consumption rate; immune enzyme activity.;
- DOI：
10.13292/j.1000-4890.20140327.013
- Series：
- Subject：
- Classification Code：
S917.4
- Mobile Reading
Read on your phone instantly
Step 1Scan QR Codes
"Mobile CNKI-CNKI Express" App
Step 2Open“CNKI Express”
and click the scan icon in the upper left corner of the homepage.
Step 3
Scan QR Codes
Read this article on your phone.
- HTML
- CAJ Download
- PDF Download
Download the mobile appuse the app to scan this coderead the article.
Tips: Please download CAJViewer to view CAJ format full text.
Download: 474 Page: 1580-1586 Pagecount: 7 Size: 487K
Citation Network
Related Literature
- Similar Article
- Reader Recommendation
- Associated Author