Phenotypic correlations of somatic and gonad traits of sea urchins Glyptocidaris crenularis in two sampled periods: first insight into its breeding and aquaculture

Shibin Luo; Xiaofei Tian; Chong Zhao; Haisen Zhou; Weijie Zhang; Wenping Feng; Yaqing Chang

doi:10.1007/s00343-014-3106-6

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Phenotypic correlations of somatic and gonad traits of sea urchins Glyptocidaris crenularis in two sampled periods: first insight into its breeding and aquaculture

Updated：2023-05-16

- Phenotypic correlations of somatic and gonad traits of sea urchins Glyptocidaris crenularis in two sampled periods: first insight into its breeding and aquaculture
- Journal of Oceanology and Limnology Vol. 32, Issue 2, Pages: 344-348(2014)
- Affiliations：
  
  Key Laboratory of Mariculture and Stock Enhancement in North China Sea Ministry of Agriculture Dalian Ocean University
- Author bio：
- Funds：
- DOI：10.1007/s00343-014-3106-6
  CLC：
- Online First：06 March 2014，
  
  Published：2014
- Accepted：
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Luo, S., Tian, X., Zhao, C. et al. Phenotypic correlations of somatic and gonad traits of sea urchins Glyptocidaris crenularis in two sampled periods: first insight into its breeding and aquaculture., Chin. J. Ocean. Limnol. 32, 344–348 (2014). https://doi.org/10.1007/s00343-014-3106-6
DOI：

Luo, S., Tian, X., Zhao, C. et al. Phenotypic correlations of somatic and gonad traits of sea urchins Glyptocidaris crenularis in two sampled periods: first insight into its breeding and aquaculture., Chin. J. Ocean. Limnol. 32, 344–348 (2014). https://doi.org/10.1007/s00343-014-3106-6 DOI：

摘要

Abstract

Prior knowledge of the correlations among commercially important traits in Glyptocidaris crenularis can be used to guide development of breeding and aquaculture programs for this species. We evaluated the phenotypic correlations between somatic and gonadal traits in G. crenularis during two sample periods (October 2010 and April 2011). The coefficients of variation (CV%) for body weight (BW)

redness (a*)

yellowness (b*)

gonad wet weight (GW)

and gonad index (GI) were >20% in both periods

while those of other traits were very low. GW was significantly correlated with somatic traits (diameter

height

and body weight) in both periods

although the correlation coefficients ranged from 0.473 to 0.636 (P <0.01). Gonad moisture content (GC)

and lightness (L*) were not significantly correlated with somatic traits (P >0.05). The color trait b* was negatively correlated with somatic traits (test diameter

test height

and body weight) during the period when the gonads were well developed (April 2011

P <0.05). We observed little difference in the nature of the phenotypic correlations between the two sample periods. The high variation in the somatic and gonad weight traits in G. crenularis suggests there is considerable potential for selective breeding. However

our results suggest that gonad quality traits cannot be selected indirectly by selecting for body weight. Our study provides an insight into the method for improving the breeding and aquaculture of G. crenulari.

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references

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