AB 11:37-46 (2010)  -  DOI: https://doi.org/10.3354/ab00289

Enhanced growth of juvenile Tachypleus tridentatus (Chelicerata: Xiphosura) in the laboratory: a step towards population restocking for conservation of the species

Yan Chen1,2, C. W. Lau1, S. G. Cheung1,3, C. H. Ke4, Paul K. S. Shin1,3,*

1Department of Biology and Chemistry, and 3State Key Laboratory in Marine Pollution, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR
2College of Marine Sciences, Shanghai Ocean University, No. 999, Hu Cheng Loop-road, Lingang New City, Shanghai, PR China
4State Key Laboratory of Marine Environmental Science, College of Oceanography and Environmental Science, Xiamen University, Xiamen, Fujian, PR China
*Corresponding author. Email:

ABSTRACT: Juveniles of artificially bred Tachypleus tridentatus were reared in the laboratory for 15.5 mo. Fast growth (at least 3 times faster than in previous studies) and low mortality were observed, with juveniles reaching the 9th instar stage and having a cumulative mortality of 61.3% at the end of the rearing period. Such enhanced growth can potentially be attributed to high seawater temperature, sufficient living space and constant water flow. Isometric growth of prosomal width and other growth parameters including opisthosoma width, eye distance and prosomal length was found. Two distinct growth phases were detected for the opisthosoma length, with zero growth from the 1st to 2nd instar but isometric growth from the 2nd to 9th instar stage. Growth in telson length was positively allometric from the 1st to 3rd instar and isometric from the 3rd to 9th instar stage. The increase in wet weight and prosomal width was isometric throughout the 9 developmental stages. Based on the allometric growth patterns, the juveniles can reach adult size within 4 yr. The results may serve as a basis for the large-scale culture of this species for the purposes of restocking and restoration of natural populations.


KEY WORDS: Horseshoe crab · Tachypleus tridentatus · Juvenile growth · Allometry


Full text in pdf format 
Cite this article as: Chen Y, Lau CW, Cheung SG, Ke CH, Shin PKS (2010) Enhanced growth of juvenile Tachypleus tridentatus (Chelicerata: Xiphosura) in the laboratory: a step towards population restocking for conservation of the species. Aquat Biol 11:37-46. https://doi.org/10.3354/ab00289

Export citation
Mail this link - Contents Mailing Lists - RSS
- -