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2008年4月对大亚湾大鹏澳网箱养殖区环境中异养细菌与弧菌的空间分布及其与环境因子的关系进行了研究。结果表明,水体异养细菌水平分布特征为:养殖区>非养殖区,水平差异极显著(t检验,p=0.005);沉积物异养细菌:养殖区为非养殖区的12倍;水体异养细菌垂直分布特征为:表层海水>底层海水,垂直差异显著(t检验,p=0.029)。与水体相比较,沉积物异养细菌含量相当高,高达1.1×107cfu/g。水体弧菌水平分布特征为:养殖区>非养殖区,水平差异显著(t检验,p=0.044);沉积物弧菌水平分布特征为:养殖区>非养殖区,水平差异显著(t检验,p=0.020);水体弧菌垂直分布特征为:表层海水>底层海水,垂直差异极显著(t检验,p=0.003)。较水体弧菌而言,沉积物弧菌含量相当高,高达1.0×107cfu/g。探讨了异养细菌、弧菌量与水环境因子的关系,结果表明:异养细菌量与海水水温为显著性正相关(r=0.843,p=0.035),与海水盐度、DO为负相关(r=-0.737,p=0.095;r=-0.224,p=0.670)。弧菌量与海水水温为显著性正相关(r=0.821,p=0.045),与海水盐度为显著性负相关(r=-0.860,p=0.028),与海水DO为负相关(r=-0.264,p=0.613)。
In April 2008, the spatial distribution of heterotrophic bacteria and vibrios in the environment of cage aquaculture in Dapengao, Daya Bay and their relationship with environmental factors were studied. The results showed that the level distribution of heterotrophic bacteria in water body was as follows: aquaculture zone> non-aquaculture zone, with significant difference in level (t test, p = 0.005); heterotrophic bacteria in sediment: aquaculture zone 12 times of non-aquaculture zone; The vertical distribution of the bacterium was characterized by surface seawater> bottom seawater with significant vertical differences (t-test, p = 0.029). Compared with the water body, the content of heterotrophic bacteria in sediments is quite high, reaching as high as 1.1 × 107cfu / g. The characteristics of horizontal distribution of vibrio in water body were as follows: aquaculture zone> non-aquaculture zone, the difference was significant (t test, p = 0.044) p = 0.020). The vertical distribution of Vibrio in water was: surface seawater> bottom seawater, the vertical difference was significant (t test, p = 0.003). Vibrio sediments, Vibrio sediment content is quite high, up to 1.0 × 107cfu / g. The relationship between heterotrophic bacteria and Vibrio spp. Was studied. The results showed that there was a significant positive correlation between heterotrophic bacteria and seawater temperature (r = 0.843, p = 0.035), negatively correlated with salinity and DO (r = -0.737, p = 0.095; r = -0.224, p = 0.670). There was a significant positive correlation between the amount of vibrios and the seawater temperature (r = 0.821, p = 0.045) and negatively correlated with salinity of seawater (r = -0.860, p = 0.028) -0.264, p = 0.613).