Effects of vitamin B₂ on the gonad growth, texture traits, collagen deposition and related gene expression of sea urchin (Mesocentrotus nudus)

• LIU Haijing, 
• GONG Panke, 
• ZENG Haiqing, 
• CAO Jiahao, 
• GOU Dan, 
• DING Jun, 
• CHANG Yaqing, 
• ZUO Rantao