Mathematical Analysis of Morphometric Attributes Effects on Body Weight of Three-Month-Old Lates Calcarifer

Lates calcarifer is also known as Asian seabass or ‘Barramundi’ or giant sea perchan, and it is an important euryhaline carnivorous fish. It can be cultured in both brackish and freshwater ponds as well as in cages (Shanmugaarasu, Kathiresan, Ilanchelian & Rajendran, 2018). Such as Lates calcarifer is increasingly significant tropical aquaculture species of the Indo-Pacific region and has been cultured for over 30 years in Southeast Asia (Yue, Li, Chao, Chou & Orban, 2002). And now Lates calcarifer is also an important commercial fish in China , especially the southeast coast. At present, the research on Lates calcariferis was mainly focused on cultivation, nutrition, immunity, physiology, disease, genetics and so on (ATHAUDA & ANDERSON, 2014; DOMINGOS, ZENGER & ERRY, 2015; Lin, Yan, Rui-rong, Yang & Xue-peng, 2015; RANJAN, PRASAD & VANI, 2014; TRUJILLO-GONZÁLEZ, JOHNSON L & CONSTANTINOIU, 2015). However, the relationship between morphometric attributes and body weight is one of the basic characteristics for its thoroughbred breeding but rarely reported. Multivariate analysis is one of the main ways to determine the relationship between morphological traits,and it has been widely used in aquatic breeding, for example Pelodiscus sinensis(Fengfan, Wei, Xinping & Jian, 2015),Exopalaemon carinicauda(Chengsong, Fuhua & Jianhai, 2013),Orithyia sinica(Shou-Min, Ren-Jie & Ling-Xu, 2015),Synodus macrops(Jiayu, Wenqi, Yangjie, Qinyu & Jian, 2013), Pinctada fucata and so on(Caigang, Baosuo & Dongling, 2015).