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海洋科学  2010 

水体中组织胺对日本新糠虾生长、发育和体内组织胺含量的影响

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Keywords: 日本新糠虾(Neomysis,japonica),组织胺,生长,发育,存活

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Abstract:

将日本新糠虾(Neomysisjaponica)从新孵幼体至性成熟,养殖于不同质量浓度组织胺水体中,其质量浓度分别为0mg/L(对照组),5mg/L(低剂量组,L组),10mg/L(中剂量组,M组),15mg/L(高剂量组,H组),以研究水体中组织胺对日本新糠虾存活、生长和发育的影响及糠虾体内组织胺含量的变化。结果表明,随组织胺质量浓度的升高,日本新糠虾的体长、体质量和存活率均呈现下降趋势;M组和H组日本新糠虾的体长和体质量显著小于对照组(P<0.05),而L组与对照组间无显著差异;较高质量浓度的组织胺(15mg/L)能显著降低日本新糠虾的存活率,H组存活率仅为53.92%±3.58%;各组织胺质量浓度组对雄性日本新糠虾性征出现时间无显著的影响,但对雄性日本新糠虾性成熟时间有不同程度的延迟作用,对照组性成熟时间为(25.71±0.76)d,而H组为(28.00±0.82)d,两组间差异显著(P<0.05)<0.05);雌性日本新糠虾的性成熟时间也有随组织胺质量浓度升高而呈延迟的趋势,但仅H组与对照组存在显著差异(P<0.05)<0.05),延迟近3d。经HPLC(HighPerformanceLiquidChromatography,简称HPLC)法检测日本新糠虾体内组织胺后,发现M和H组中检测出了较高含量的组织胺,分别达到(435.33±56.94)pg/g和(478.67±140.57)pg/g,显著高于对照组(P<0.05)<0.05)。上述结果说明,水体中一定质量浓度的组织胺能抑制日本新糠虾的生长和发育,其体内组织胺含量的升高可能是重要的诱因之一。

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