Some macro and trace elements in various tissues of Van fish variations according to gender and weight

ABSTRACT Van fish is a fish that can live in soda water at pH 9-10. Van fishing area is a very important source of protein for the people. The variations in tissue metal levels according to gender and weight in Van fish (Alburnus tarichi, Güldenstadt 1814) were studied. This study was conducted for the first time in Van fish. Which it is very important for living organisms Calcium(Ca), magnesium(Mg), sodium(Na), potassium(K), cobalt(Co), chromium(Cr) and lithium(Li) elements levels in the muscle, liver, gill, gonad, and brain tissues of Van fish were investigated by using inductively-coupled plasma-optic emission spectroscopy (ICP-OES). The results were evaluated in two groups as macro-elements(Ca, Mg, Na, K) and trace-elements(Co, Cr, Li). Cobalt concentration in brain tissue was found to be higher than those in other tissues. Also, male fish had higher metal concentrations than female fish and their metal levels in brain and gonad tissues varied with their weight (P<0.05). This study shows that consumption of Van fish can be consumed to supply some necessary minerals required for a healthy nutrition.摘要：凡湖鱼（Van fish）是一种可在pH值9~10的苏打水环境中存活的鱼类，其捕捞产物是当地居民重要的蛋白质来源。本研究针对凡湖拟白鱼（Alburnus tarichi, Güldenstädt 1814）体内组织金属元素含量随性别与体重的变化展开分析，此为针对该物种的首次同类研究。针对凡湖鱼肌肉、肝脏、鳃、性腺及脑组织中的钙（Ca）、镁（Mg）、钠（Na）、钾（K）、钴（Co）、铬（Cr）与锂（Li）元素水平开展检测，上述元素均为生物体必需的营养物质，本研究采用电感耦合等离子体发射光谱法（inductively-coupled plasma-optic emission spectroscopy, ICP-OES）完成上述检测。研究结果按常量元素（Ca、Mg、Na、K）与微量元素（Co、Cr、Li）两类进行统计分析。结果显示，脑组织中的钴元素浓度显著高于其他所有组织；此外，雄性凡湖鱼的金属元素总体浓度高于雌性，且其脑组织与性腺组织内的元素水平随体重呈现显著差异（P<0.05）。本研究表明，食用凡湖鱼可作为获取健康膳食所需部分必需矿物质的有效途径。