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首页> 外文期刊>Aquaculture Research >Water quality and bacterial populations in a tropical marine cage culturefarm
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Water quality and bacterial populations in a tropical marine cage culturefarm

机译：热带海洋网箱养殖场的水质和细菌种群

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摘要

A study was conducted to investigate fluctuations in different physical and chemical parameters, and bacterial populations in a tropical marine cage culture farm for one annual cycle. Samples were collected from the centre of the farm (station 1) and away from the cages (station 2), There were no significant differences (P > 0.05) in water quality parameters, such as temperature, salinity, dissolved oxygen, conductivity and pH between the two stations during the neap and spring tides. Nutrient concentrations and bacterial counts were slightly higher at station 1 than station 2, but the differences were not significant (P > 0.05). In general, nutrients and chlorophyll a concentrations in the study area were higher than those reported in the pristine marine environment. There were significant correlations (P < 0.05) between some nutrients (soluble reactive phosphorus, nitrite and nitrate) and bacterial counts, There were no significant differences P > 0.05) in nutrient levels and bacterial populations between the neap and spring tides, probably because of the large number of farms operating in the shallow channel. The present study indicates that high organic loading from the fish farming activities could cause deterioration of the water quality in the cage-culture system as well as in the surrounding environment.
机译：进行了一项研究，以调查热带海洋网箱养殖场一年内不同理化参数和细菌种群的波动。从农场中心（第1站）和网箱（第2站）采集样品，水质参数（如温度，盐度，溶解氧，电导率和pH）无显着差异（P> 0.05）。在潮汐潮和潮汐时，两个站之间第1站的养分浓度和细菌数比第2站略高，但差异不显着（P> 0.05）。通常，研究区域中的养分和叶绿素a浓度高于原始海洋环境中报告的那些。潮汐和潮汐之间某些营养素（可溶性活性磷，亚硝酸盐和硝酸盐）与细菌数量之间存在显着相关（P <0.05），营养水平和细菌数量之间没有显着差异（P> 0.05）。在浅水沟经营的大量农场。本研究表明，养鱼活动中的高有机负荷可能导致网箱养殖系统以及周围环境的水质恶化。

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