ORIGINAL RESEARCH article
Front. Mar. Sci.
Sec. Marine Fisheries, Aquaculture and Living Resources
Volume 12 - 2025 | doi: 10.3389/fmars.2025.1656074
Comprehensive evaluation of turbot (Scophthalmus maximus) upper thermal tolerance and body weight based on GRA-TOPSIS analysis
Provisionally accepted
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences (CAFS), Qingdao, China
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In order to comprehensively evaluate the high temperature tolerance and fast growth performance of turbot (Scophthalmus maximus), the grey relational analysis (GRA) and the Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) analysis of upper thermal tolerance (UTT) and body weight (BW) measurements were performed, respectively. Fifty two-trait combination breeding families including 25 UTT♂ × BW♀ families and 25 UTT♀ × BW♂ families were analyzed. The GRA showed that the ranges of the equal relational grade and the weighted relational grade were 0.61984–0.94876 and 0.66391–0.94063, respectively. The relational gradation of the equal relational grade and the weighted relational grade of 25 UTT♂ × BW♀ families were higher than those of 25 UTT♀ × BW♂ families, except for UTT10♂ × BW10♀, UTT11♂ × BW11♀, and UTT17♂ × BW17♀ families. UTT23♂ × BW23♀ had the highest equal relational grade and weighted relational grade. TOPSIS analysis results showed that the range of Ci* of the 50 families was 0.066614–0.936093. The Ci* values of 25 UTT♂ × BW♀ families were higher than those of 25 UTT♀ × BW♂ families except for UTT10♂ × BW10♀, UTT11♂ × BW11♀, and UTT17♂ × BW17♀ families. The UTT23♂ × BW23♀ family had the highest Ci*. It was obvious that, using both the GRA and TOPSIS method, the comprehensive evaluation results of heat tolerance and weight traits in UTT♂ × BW♀ families were generally better than those of UTT♀ × BW♂ families. This showed that a breeding method involving an initial cultivation of a high temperature resistant male strain and fast growing female strain, followed by hybridization between the two strains, may be a strategy worthy of consideration.
Keywords: Turbot, Upper thermal tolerance, Body Weight, GRA, TOPSIS
Received: 29 Jun 2025; Accepted: 19 Aug 2025.
Copyright: © 2025 Gou, Wang, Sun and Ma. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Xinan Wang, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences (CAFS), Qingdao, China
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