2012年1—12月,对三都澳水产养殖区表层水水质进行了调查.

　　January-Decemberintwothousandandtwelve,conductedasurveyofsurfacewaterqualityinSanduBayaquaculturezone.

　　结果显示：该区域全年水温在10.8—28.2℃；盐度24.3—27.8,年平均25.82；pH7.92—8.23,年平均8.03；溶氧量5.06---7.49mgL﹣1,年平均0.75mg.L﹣1；无机溶解氮含量在0.324—0.788mg.L﹣1,年平均0.515mg.L﹣1;活性磷酸盐含量在0.028---0.082mg.L﹣1,年平均0.050mg.L﹣1,营养盐结构发生改变.

　　Theresultsshow:theareaofthewatertemperatureinthe10.8-28.2℃;salinityof24.3-27.8,average25.82;pH7.928.23,theannualaverageof8.03;theamountofdissolvedoxygen5.06---7.49mgL1,annualaverage0.75mg.L1;dissolvedinorganicnitrogeninthe0.324-0.788mg.L1,annualaverage0.515mg.L1;activephosphatecontentin0.028---0.082Mg.L1,annualaverage0.050Mg.L1,nutritionsaltstructurechanges.

　　通过比较2000—2012年的变化情况发现,2000---2012年,三都澳养殖区表层水的溶氧量呈下降趋势,化学需氧量呈上升趋势,无机溶解氮及活性磷酸盐含量均上升.

　　Throughcomparethechangesof2000-2012discovery,2000---2012,dissolvedoxygeninSanduaofarmingareasurfacewaterdecreased,thechemicaloxygendemandisontherise,inorganicdissolvednitrogenandactivephosphatecontentincreased.

　　结果表明,三都澳养殖区表层水长期处于中度富营养化状态.

　　Theresultsshowthat,thesurfacewateraquacultureareaAustraliaSanduinmoderateeutrophicationstatus.