Abstract：Juvenile sea cucumber Apostichopus japonicus with body weight of 60 g and 200 g were placed in a semi-flowing temperature-controlled glass tank in the room, and exposed to the iron concentration of 0. 50 mg/L in water from amino acid-chelated iron and ferrous sulfate at water temperature of 15 ℃ and 22 ℃, respectively, to investigate the effects of iron form, water temperature and body weight on the enrichment of iron in sea cucumber. The results showed that iron form significantly impacted iron enrichment in sea cucumber at iron concentration of 0. 50 mg/L. The sea cucumber exposed to amino acid-chelated iron contained iron concentration of 12. 72 mg/kg in their body walls, while those exposed to ferrous sulfate contained 48. 27 mg/kg in 8 day exposure to iron-enriched seawater at 22 ℃, indicating that inorganic ferrous sulfate was more effective than organic amino acid-chelated iron for iron enrichment in sea cucumber. Furthermore, there was more accumulative iron in the sea cucumber at 22 ℃ than that at 15 ℃, without significant difference in iron accumulation capacity in the sea cucumber with different body weight. These findings provide valuable insights for the cultivation of iron-rich sea cucumber.
赛吉卓玛, 杜泽华, 谷晶, 杨国军, 任同军, 王华. 元素形态、水温和体质量对仿刺参富集铁的影响研究[J]. 水产科学, 2025, 44(1): 115-121.
SAIJI Zhuoma, DU Zehua, GU Jing, YANG Guojun, REN Tongjun, WANG Hua. Influence of Elemental Form, Water Temperature, and Body Weight on Iron Accumulation in Sea Cucumber Apostichopus japonicus. Fisheries Science, 2025, 44(1): 115-121.
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2025, Vol. 44 
