CAJ | 학술논문

研究了投喂不同饵料(微绿球藻Nannochloropsis sp.、海洋红酵母Rhodomanas benthica、孔石莼Ulva pertusa碎屑和海蒿子Sargassum pallidium碎屑)对刺参海上网箱育苗中各阶段浮游幼虫、稚参的存活率及其生长的影响,幼虫培育历时30 d,稚参培育试验共进行21 d。结果表明：在浮游幼体中后期,投喂微绿球藻的组幼虫存活率均显著高于投喂海洋红酵母的组和不投饵的对照组( P<0.05)；在稚参培育21 d时,投喂海蒿子的组稚参存活率最高,为20.4%±0.2%,投喂孔石莼的组次之,存活率为19.9%±1.7%,但二者差异不显著(P>0.05),投喂微绿球藻与投喂海洋红酵母的组存活率无明显差异(P>0.05),存活率分别为13.6%±0.9%和13.9%±0.7%,而不投饵料的对照组存活率最低,仅为8.9%±0.8%；试验结束时,投喂海蒿子、孔石莼和海洋红酵母的组稚参的体长增长均较快,分别为(7.79±0.47)、(7.35±0.13)、(7.08±0.63) mm,显著高于微绿球藻组(5.08 mm±0.40 mm)和对照组(4.94 mm±0.23 mm)(P<0.05)。研究表明：相对于不投喂饵料,投喂适量饵料能够显著提高刺参海上网箱育苗幼体的存活率和生长率；浮游幼虫阶段,投喂微绿球藻较为适宜；附着变态后的稚参期,投喂海蒿子或孔石莼碎屑最佳。
연구료투위불동이료(미록구조Nannochloropsis sp.、해양홍효모Rhodomanas benthica、공석순Ulva pertusa쇄설화해호자Sargassum pallidium쇄설)대자삼해상망상육묘중각계단부유유충、치삼적존활솔급기생장적영향,유충배육력시30 d,치삼배육시험공진행21 d。결과표명：재부유유체중후기,투위미록구조적조유충존활솔균현저고우투위해양홍효모적조화불투이적대조조( P<0.05)；재치삼배육21 d시,투위해호자적조치삼존활솔최고,위20.4%±0.2%,투위공석순적조차지,존활솔위19.9%±1.7%,단이자차이불현저(P>0.05),투위미록구조여투위해양홍효모적조존활솔무명현차이(P>0.05),존활솔분별위13.6%±0.9%화13.9%±0.7%,이불투이료적대조조존활솔최저,부위8.9%±0.8%；시험결속시,투위해호자、공석순화해양홍효모적조치삼적체장증장균교쾌,분별위(7.79±0.47)、(7.35±0.13)、(7.08±0.63) mm,현저고우미록구조조(5.08 mm±0.40 mm)화대조조(4.94 mm±0.23 mm)(P<0.05)。연구표명：상대우불투위이료,투위괄량이료능구현저제고자삼해상망상육묘유체적존활솔화생장솔；부유유충계단,투위미록구조교위괄의；부착변태후적치삼기,투위해호자혹공석순쇄설최가。
The effects of different diets ( alga Nannochloropsis sp. , yeast Rhodotorula benthica, sea lettuce Ulva pertusadetritus and sea weed Sargassum pallidium detritus) on survival and growth of larval and juvenile sea cucum-ber Apostichopus japonicus were studied in marine net cages for 30 d for the larvae and 21 d for the juveniles. The results showed that the later larvae fed the alga had significantly higher survival and growth than those fed the yeast (P<0. 05), both being significantly higher than the larvae in the control group(unfeeding) (P<0. 05). In 21 day rearing period, the maximal survival rate (20. 4%±0. 2%) was observed in the juveniles fed the sea weed, fol-lowed by the juveniles fed the sea lettuce(19. 9%±1. 7%),without significant difference (P>0. 05). There were no significant differences in the juveniles fed the yeast (13. 9%±0. 7%) and the alga (13. 6%±0. 9%), with the minimal survival in the control group(8. 9%±0. 8%). At the end of the experiment, the juveniles fed the sea weed (7. 79±0. 47) mm, sea lettuce(7. 35±0. 13) mm, and yeast (7. 08±0. 63) mm showed higher growth in body length than those fed the alga (5. 08±0. 40) mm and in the control group(4. 94±0. 23) mm, without significant difference (P>0. 05). Compared with the unfeeding traditional culture methods in the marine net cage, the growth and survival of larval and juvenile sea cucumber were improved greatly by feeding at an optimal rate and types, in-cluding the larvae fed Nannochloropsis sp. , and the metamorphosed juveniles fed sea weed detritus.