Comparison in nutritional quality between wild and cultured cuttlefish Sepia pharaonis   总被引：1，自引：0，他引：1  

文菁  陈道海  曾玲 《中国海洋湖沼学报》2014,32(1):58-64

In this study, the proximate composition and the amino and fatty acid profi les of shrimp Litopenaeus vannamei(prey) and wild and cultured cuttlefi sh Sepia pharaonis(the latter fed the prey) were determined and compared with FAO/WHO recommendations. The resulting scores for isoleucine, phenylalanine+tyrosine, histidine, lysine, threonine, and tryptophan in cultured cuttlefi sh were ≥150. The ratio of EAA(essential amino acids)/nonessential amino acids in cultured cuttlefi sh(0.82) was higher than in the wild form(0.80). All EAA amino acid scores for cultured cuttlefi sh were higher than their wild counterparts, except for histidine and tryptophan. Both groups of cuttlefi sh possessed similar saturated fatty acid content, with the cultured containing much more total(Σ) monounsaturated fatty acids, Σ n-6 polyunsaturated fatty acids(PUFA), and eicosapentaenoic acid(C20:5 n-3) but less Σ n-3 PUFA, arachidonic acid(C20:4 n-6), and docosahexaenoic acid(C22:6 n-3) than their wild counterparts. Therefore, the present results suggest that these cultured cuttlefi sh were better than the wild form for human health. Notably, these results also indicate that the nutritional composition of these cuttlefi sh might have been signifi cantly affected by diet.  相似文献   

鲤鱼湖的水化学特征和鱼类多样性北大核心CSCD     

杨富亿  文波龙  李晓宇  杨艳丽  万斯昂  陈凤臻  欧阳玲  宋述芹  赵胜男 《湿地科学》2022,(3):317-325

根据2019年对鲤鱼湖的调查结果,研究了鲤鱼湖的水化学特征和鱼类多样性。研究结果表明,2019年7月,鲤鱼湖水体的含盐量、碱度和硬度的平均值分别为0.29 g/L、3.02 mmol/L和2.01 mmol/L,Na^(+)浓度与K^(+)浓度比值、1/2Ca^(2+)浓度与1/2Mg^(2+)浓度比值、(Na^(+)+K^(+))浓度与(1/2Mg^(2+)+1/2Ca^(2+))浓度比值、碱度与硬度比值的平均值分别为6.55、0.36、0.77和1.50;COD_(Cr)和COD_(Mn)质量浓度的平均值分别为45.58 mg/L和8.50 mg/L,总氮和总磷质量浓度的平均值分别为0.823 mg/L和0.105 mg/L,氨氮、硝态氮、亚硝态氮和活性磷酸盐质量浓度的平均值分别为0.126 mg/L、0.024 mg/L、5.2×10^(-3) mg/L和0.033 mg/L,氮磷比的平均值为12.66;氟化物、氰化物、硫化物和挥发性酚质量浓度的平均值分别为0.607 mg/L、0.97μg/L、0.88μg/L和1.62μg/L,铬、镍、砷、铅、铜、镉、锌和汞元素质量浓度的平均值分别为0.045μg/L、0.243μg/L、4.92μg/L、0.598μg/L、0.265μg/L、0.038μg/L、0.626μg/L和1.455×10^(-2)μg/L;鲤鱼湖中有3目5科17属17种鱼类,由6个区系生态类群构成,其与达里湖和岗更湖中的鱼类关系密切;鲤鱼湖的湖水为碳酸盐类钠组Ⅰ型水,鲤鱼湖为淡水湖泊,水体中度污染且重度富营养化,COD_(Mn)、挥发性酚和氨氮为水体的主要污染指标,COD_(Mn)还是水体富营养化的指标;鲤鱼湖的水质对鱼类多样性尚无明显负面影响。  相似文献