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Long-term effects of temperature on gonad production, colour andflavour of the sea urchin Glyptocidaris crenularis

Published online by Cambridge University Press:  31 July 2014

Chong Zhao ,
Xiaofei Tian ,
Ping Sun ,
Lunchao Hu ,
Wenping Feng  and
Yaqing Chang
Chong Zhao
Affiliation:
Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture, Dalian Ocean University, Dalian 116023, China
Xiaofei Tian
Affiliation:
Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture, Dalian Ocean University, Dalian 116023, China
Ping Sun
Affiliation:
Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture, Dalian Ocean University, Dalian 116023, China
Lunchao Hu
Affiliation:
Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture, Dalian Ocean University, Dalian 116023, China
Wenping Feng
Affiliation:
Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture, Dalian Ocean University, Dalian 116023, China
Yaqing Chang*
Affiliation:
Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture, Dalian Ocean University, Dalian 116023, China
*
Correspondence should be addressed to: Y. Chang, Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture, Dalian Ocean University, Dalian 116023, China email: yaqingchang@hotmail.com
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Abstract

The increasing market demand for Glyptocidaris crenularisshapes its great potential for aquaculture. Temperature is an importantfactor affecting gonad production and quality of sea urchins. Therefore, itis essential and valuable to carry out an evaluation of the temperatureeffects on gonad production and quality in G. crenularisbefore potential aquaculture. Here, we investigated the long-term effects oftemperature on gonad production, colour and flavour in G. crenularis. There was no significant difference of testdiameter, height and body weight between the sea urchins in high (16–23°C)and low (12–16°C) temperatures (P > 0.05). Glyptocidaris crenularis showed significantly highergonad production and index in high temperature and in low temperature (P < 0.05). L*, a*, b* readings were slightly higher in the low temperaturegroups, although no significant difference was found(P > 0.05). Subjective colour and flavour ratings foundthat G. crenularis in the low temperature group showedsignificantly better colour (P = 0.003) and flavour (P < 0.001) than those in the high temperature group.The present study provides valuable and insightful information into theestablishing G. crenularis aquaculture.

Keywords

Glyptocidaris crenularisgonad productiongonad qualitytemperature

Information

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 95 , Issue 1 , February 2015 , pp. 139 - 143
Copyright
Copyright © Marine Biological Association of the United Kingdom 2014 

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