烟台四十里湾养殖海区影响栉孔扇贝肥满度和生长因素的研究

The factors affecting meat condition and growth rate of Farreri's scallop Chlamys (Azumapecten) farreri in Sishiliwan Bay,Yantai

1997年 6月～ 1998年 5月用现场方法测定了烟台四十里湾海区栉孔扇贝 Chlamys( Azumapecten) farreri肥满度和生长率与 TPM(总颗粒物质 )和 POM(颗粒有机物 )现存量、饵料质量 ( POM/ TPM,Q)、栉孔扇贝同化率 ( AE)和同化量 ( AR)的关系。结果表明 :( 1) TPM对软体部干重的瞬时生长率 IGR2 并没有影响 ,而对于干贝指数 IA、干内脏指数 IV以及壳高的瞬时生长率 IGR1却有明显的影响 ,其中 ,IA和 IV与 TPM呈正相关关系 ,回归方程分别为 IA=5.2 149( TPM) 0 .2 4 78,IV =5.2 62 ( TPM) 0 .4 40 5,而 IGR1与 TPM呈负相关关系 ,回归方程分别为 IGR1=6.0 756( TPM) -2 .4 36;( 2 ) POM对于栉孔扇贝所有的肥满度指标和瞬时生长率指标均有明显的影响 ,并且都呈正相关关系 ,回归方程分别为 IA=6.12 78( POM) 0 .2 74 9,IV=7.1837( POM) 0 .60 86,IGR1=0 .1160( POM) 1.8586,IGR2 =0 .170 8( POM) 2 .4 994 ;( 3) Q对 IV没有明显的影响 ,而对于 IA以及所有瞬时生长率指标都有明显的影响 ,回归方程分别为 IA=8.2 881( Q) 0 .3 2 11,IGR1=1.84 2 8( Q) 1.780 7,IGR2 =6.4 2 16( Q) 2 .0 4 0 4 ;( 4 ) AE只对 IA和 IGR1有显著影响 ,回归方程分别为 IA=2 0 .72 80 ( AE) -0 .3 13 7,IGR1=0 .0 0 68( AE) 1.1193。

During June 1997 ~May 1998, we determined the relationships between meat condition (the index of dried adductor muscle, IA and the index of dried viscera, IV ), growth rate (the instant growth rate of shell height, IGR 1 and the instant growth rate of dried soft tissue, IGR 2 ) of Farrers scallop Chlamys (Azumapecten) farreri and total particulate matter (TPM) biomass, particulate organic matter(POM) biomass, food quality (POM/TPM, Q ) , absorption efficiency ( AE ) and absorption rate ( AR ) of C.(A) farreri in Sishiliwan Bay, Yantai, by in situ method. The results show that: (1) TPM affects IA, IV and IGR 1 significantly, but not affect IGR 2 , the regression formula is IA =5 214 9(TPM) 0 247 8 , IV =5 262(TPM) 0 440 5 , IGR 1 =6 075 6(TPM) -2 436 , respectively; (2) All of indexes of meat condition and instant growth rate are affected by POM, the regression formula is IA =6 127 8(POM) 0 274 9 , IV =7 183 7(POM) 0 608 6 , IGR 1 =0 116 0(POM) 1 858 6 , IGR 2 =0 170 8(POM) 2 499 4 , respectively; (3) Q has no effect on IV , but affects IA and all of indexes of instant growth rate, the regression formula is IA =8 288 1( Q ) 0 321 1 , IGR 1 =1 842 8( Q ) 1 780 7 , IGR 2 =6 421 6( Q ) 2 040 4 , respectively; (4) AE affects IA and IGR 1 , the regression formula is IA =20 728 0( AE ) -0 313 7 , IGR 1=0 006 8(AE ) 1 119 3 , respectively, but not affect IV and IGR 2 ; (5) AR affects all of indexes of meat condition and instant growth rate, the regression formula is IA=7 028 9(AR) 0 205 2 ,IV=9 180 0(AR) 0 286 8 , IGR 1=0 535 7(AR) 1 035 1 ,IGR 2=1 523 6(AR) 1 038 6 , respectively