The techniques of Sparus marocephalus tagged and released in Daya Bay

11 968 Sparus marcrocephalus with average body length of 60 .2mm were tagged and released in Daya Bay during 1997 .955 Sparus marcrocephalus were recaptured and the recapture rate was 8 .0 %.The most part of them distributed in the shallow waters along the coast of the top Bay , only few appeared in the ialands of the middle Bay .The tagged fish were well growing , the average body length of them had got to 235mm after 240 days .