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首页> 外文期刊>Estuarine Coastal and Shelf Science >Periphyton indicate effects of wastewater discharge in the near-coastal zone, Perth (Western Australia)
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Periphyton indicate effects of wastewater discharge in the near-coastal zone, Perth (Western Australia)

机译：附生植物表明废水排放对珀斯（西澳大利亚州）近沿海地区的影响

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摘要

Periphyton communities on artificial substrata were successfully utilised as a biological indicator of the potential eutrophic effects of wastewater discharge into coastal waters off Perth, Western Australia. Biomass and percentage carbonate content measurements of periphyton communities grown in situ indicated that the periphyton primary production (organic weight) was enhanced in the vicinity of the discharge outlets, with a significant negative correlation between distance north of the northern outlet in Whitfords Lagoon and periphyton organic weight (OW) observed in autumn at a depth of 4m (r = -0.704, P < 0.001). However, this response was primarily limited to the relatively calm autumn season and substrata at depths of 2 m and 4 m. Thus, in favourable conditions phytoplankton and high relief reef communities are more likely to exhibit a eutrophic influence (in the form of enhanced primary production) of the treated wastewater discharge. Laboratory studies confirmed that treated wastewater, diluted 100-fold to estimate surface concentrations above the wastewater outfalls in the field, stimulates periphyton growth above levels recorded in unpolluted seawater (F = 12.485; P = 0.0073).
机译：人工基质上的附生植物群落已成功用作生物学指标，表明废水排放到西澳大利亚州珀斯附近沿海水域的潜在富营养化作用。原位生长的附生植物群落的生物量和碳酸盐含量测量表明，在排放出口附近，附生植物的初级生产力（有机重量）得到了提高，惠特福德泻湖北部出口以北的距离与附生植物有机体之间呈显着负相关。秋季在4m深度处观察到的重量（OW）（r = -0.704，P <0.001）。但是，这种响应主要限于相对平静的秋季和2m和4m深度的地层。因此，在有利的条件下，浮游植物和高浮游生物群落更可能对处理后的废水排放产生富营养化的影响（以增加的初级生产力的形式）。实验室研究证实，经处理的废水经稀释100倍以估计田间废水排放口上方的地表浓度，可刺激周生生物的生长超过未污染海水中记录的水平（F = 12.485； P = 0.0073）。

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