Journal of Aquaculture (한국양식학회지)

The Korean Society of Fisheries and Aquatic Science (한국양식학회)
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Studies on the Collection and Growth of Spat Surf clam, Spisula sachalinensis in the

북방대합, Spisula sachalinensis의 실내채묘 및 치패의 성장

  • 이정용 (국립수산과학원 강릉수산종묘시험장) ;
  • 김완기 (립수산과학원 서해수산연구소 증식과) ;
  • 이채성 (립수산과학원 서해수산연구소 증식과) ;
  • 박영제 (립수산과학원 서해수산연구소 증식과)
  • Published : 2002.06.01
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Abstract

Effect of substrate composition, stocking density and food organisms on survival and growth of the surf clam, Spisula sachalinensis was studied. Spat collection from the substratum was the highest, when its sand size was less than 250 $\mu m4; at such substratum, survival and growth of the surf clam were also the highest. The spat (1.4 mm) grew to 4.6 mm and 8.2 mm in shell length on day 30 and 50, respectively. The relationship between shell length (SL) and shell height (SH), shell breadth (SB), total weight (TW) and shell weight (SW) of the spat are formulated by the following equations; SH : 0.7351SL+0.2272 ( $r^2$ =0.9600)i SB = 0.4037SL+0.2112 ($r^2$ = 0.9452); TW : 0.2824SL^{2.7020} ($r^2$ = 0.9820)i SW = $0.4021SL^{2.0217} ($r^2$ : 0.6169). In the substratum containing fine sand, growth and survival of the clam roared at the density of 1~2 ind./$cm^2$ were optimal. The quality of feed decreases in the following order; C. calcitrans, mixture group, I. galbana, P. lutheri, T. suecica.

이 연구에서는 북방대합의 안정적인 인공 종묘생산을 위한 기초지식을 얻고자 채묘방법과 치패의 성장 및 사육 방법에 따른 성장과 생존율을 조사하였다. 채묘는 모래저질이 효과적이었으며, 특히 모래입자가 250 $\mu\textrm{m}$이하의 초미세사질에서 높은 성장과 생존율을 보였다. 각장 1.4 mm의 치패는 30일째에 4.6 mm로, 50일째에 8.2 mm로 성장하였으며, 각장(SL)에 대한 각고(SH), 각폭(SB), 전중(TW) 및 각중(SW)의 상대성장식은 아래와 같았다. 각고의 상대성장식 SH : 0.7351SL+0.2272 (r$^2$ : 0.9600) 각폭의 상대성장식 SB : 0.4037SL+0.2112 (r$^2$ : 0.9452) 전중의 상대성장식 W : 0.2824SL$\^$2.7020/ (r$^2$ : 0.9820) 각중의 상대성장식 SW : 0.4021SL$\^$2.0217/ (r$^2$ : 0.6169) 치패 사육을 위한 저질은 미세사질이 효과적이었으며,1∼2개체/$\textrm{cm}^2$의 밀도에서 성장과 생존율이 양호하였다. 먹이생물은 C. calcitrans가 가장 빠른 성장을 보였으며, 다음으로 혼합구와 I. galbana, P. lutheri, T. suecica 순 이었다.

Keywords

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