Abstract This study compares the chemical composition of cockle (Anadara granosa) and some commercially important marine (Asian seabass Lates calcarifer, grouper Epinephelus bleekeri, hardtail scad Megalaspis cordyla, longtail tuna Thunnus tonggol and Indian mackerel Rastrelliger kanagurta) and freshwater (sutchi catfish Pangasius hypophthalmus, Nile tilapia Oreochromis niloticus and eel Monopterus albus) fishes in Peninsular Malaysia. The results show that the proximate composition and trace metal content were significantly different (P < 0.05) among species investigated. The mean protein content was the highest in eel (19.1%) and the lowest in sutchi catfish (13.0%) and cockle (13.0%). The mean lipid content of Indian mackerel (3.9%) was higher than cockle (2.0%), followed by eel (1.3%) and longtail tuna (0.8%). The mean ash content was the highest in Indian mackerel (1.4%) and the lowest in cockle (0.9%). Zinc and manganese contents in cockle (Zn: 61.2 mg kg−1, Mn: 22.7 mg kg−1) were very high compared to other species investigated. The copper content was minimum in sutchi catfish (1.0 mg kg−1) and a maximum in the hardtail scad (11.7 mg kg−1). Trace metal content in sutchi catfish, Nile tilapia, grouper, longtail tuna, eel and cockle followed an order Zn > Mn > Cu, whereas Asian seabass, hardtail scad and Indian mackerel followed a different order Zn > Cu > Mn. Trace metal content in the tissue of the fishes examined was within safe limits for human consumption except Mn content in the cockle and Cu content in the hardtail scad, which is a matter of concern. When considering the daily fish fat, mineral and trace metal intake, marine fishes and shellfish are better than freshwater fishes.

中文翻译：

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一些具有重要商业价值的鱼类的化学成分比较分析，重点是马来西亚的各种饮食

摘要 本研究比较了鸟蛤 (Anadara granosa) 和一些具有重要商业价值的海洋 (亚洲鲈鱼 Lates calcarifer、石斑鱼 Epinephelus bleekeri、hardtail scad Megalaspis cordyla、长尾金枪鱼 Thunnus Tonggol 和印度鲭鱼 Rastrelliger kanagurta) 和淡水鲶鱼 (Pangasusutchi hypomus , 尼罗罗非鱼 Oreochromis niloticus 和鳗鱼 Monopterus albus) 在马来西亚半岛捕鱼。结果表明，所研究的物种之间的近似组成和痕量金属含量存在显着差异（P < 0.05）。平均蛋白质含量以鳗鱼最高（19.1%），最低的是鲶鱼（13.0%）和海扇（13.0%）。印度鲭鱼的平均脂质含量 (3.9%) 高于蛤蜊 (2.0%)，其次是鳗鱼 (1.3%) 和长尾金枪鱼 (0.8%)。平均灰分含量最高的是印度鲭鱼 (1.4%)，最低的是海扇 (0.9%)。与研究的其他物种相比，鸟蛤中的锌和锰含量（Zn：61.2 mg kg-1，Mn：22.7 mg kg-1）非常高。苏奇鲶鱼的铜含量最低（1.0 mg kg-1），而硬尾鲶鱼的铜含量最高（11.7 mg kg-1）。sutchi鲶鱼、尼罗罗非鱼、石斑鱼、长尾金枪鱼、鳗鱼和海扇中的微量金属含量顺序为Z​​n>Mn>Cu，而亚洲鲈鱼、硬尾鲭鱼和印度鲭鱼的顺序不同Zn>Cu>Mn。受检鱼类组织中的微量金属含量在人类食用的安全范围内，除了鸟蛤中的锰含量和硬尾鱼中的铜含量，这是一个值得关注的问题。在考虑每天鱼的脂肪、矿物质和微量金属摄入量时，