简介：TheSaemangeumprojectincludeswell-developedtidalflats,twoestuariesoftheMankyeongandDongjinrivers,andachainofsmalliskandsintheouterareaoffthedikebyreclaimingasurfaceareaof40100ha.Alongseadikeof30kmhasbeenconstructedinthemid-westareaofKorea.ThispaperdescribestheconstructionoftidaldikesfocusingonthefinalclosureoperationperformedinApril,2006employingintermediatetechnology.Predictivemodellingwasalsocarriedouttopredictthereal-timeflowfieldsduringthegradualclosureoperationofthefinalstage.

简介：Atatemperatureof23.0~24.8℃,themixedfeedingofJapaneseanchovylarvaewasinitiated24hbeforetheyolk-sacwasexhausted.Thepointofnoreturn(PNR)wasreachedonthe6thdayafterhatching.Onthe4thdayafterhatching,thepectoralangleappearedinbothfedandunfedanchovylarvaealthoughitwasmoreevidentandsharperinthestarvedandthePNRstagelarvaethaninthefedones.Accordingtoobservationsoflarvaecollectedinthesea,thepectoralangleswereevidentnotonlyinthelarvaeof3.62~7.44mminstandardlength,butalsointhelarvaeof2.70mminstandardlengthwithremnantsofyolk.Thepectoralanglesbecamediffusewhenthelarvaereached7.84mmandvanishedat9.86mm.Thepectoralanglecannotbeusedasacriteriontodistinguishhealthyfromstarvinglarvae.