Water quality fluctuations in small intermittently closed and open lakes and lagoons (ICOLLs) after natural and artificial openings

被引：4
|
作者：
Mayjor, Maddison [1 ]
Reichelt-Brushett, Amanda J. [2 ]
Malcolm, Hamish A. [3 ]
Page, Andrew [4 ]
机构：
[1] Dept Nat Resources & Environm Tasmania Primary Ind, Hobart, Australia
[2] Southern Cross Univ, Fac Sci & Engn, Lismore, Australia
[3] NSW Dept Primary Ind Fisheries, Coffs Harbour, Australia
[4] NSW Dept Primary Ind Fisheries, Byron Bay, Australia
来源：
ESTUARINE COASTAL AND SHELF SCIENCE | 2023年 / 281卷
关键词：
Estuary; Catchment management; Dissolved oxygen; Fish kill; NEW-SOUTH-WALES; COASTAL LAGOON; OPEN ESTUARY; MOUTH; ASSEMBLAGES; FISHERIES; INLET;
D O I：
10.1016/j.ecss.2022.108208
中图分类号：
Q17 [水生生物学];
学科分类号：
071004 ;
摘要：
Water quality fluctuations are influenced by natural and artificial openings of ICOLLs. In this study artificial opening resulted in a greater degradation of water quality than natural openings. Artificial openings are commonly undertaken in response to flood risk to human assets but often cause fish kills. We assessed water quality (parameters: temperature, dissolved oxygen, pH, salinity) within two ICOLLs before and after natural openings and two ICOLLS before and after artificial openings. Natural openings caused only a slight decline in water quality and no fish kills, whereas the artificial openings triggered poor water quality and fish kills. Decline of dissolved oxygen concentrations were observed following two artificial opening events associated with fish kills. We conclude that there are multiple drivers and sources contributing to low dissolved oxygen concentra-tions that are unique to individual ICOLLs and the type of opening.
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页数：9
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