CAJ | 학술논문

[目的]为进一步探索小头端菱形藻(Nitzschia capitellata Hust.)作为优质饵料、生物能源的潜能，在室内条件下对小头端菱形藻生长的最适光照强度、氮磷比等培养条件进行研究。[方法]设定不同光照度梯度，在相同营养、温度(25±1)℃以及光周期(12 h/12 d)下进行培养，筛选得出最适光照强度，其次将氮磷比设置为5∶1、6∶1、7∶1和8∶1，置于相同条件进行培养。[结果]在3000 lx的光照度下，小头端菱形藻的藻比增殖率和现存量最高，分别为0.51 d-1和7.97×104 cells/ml。在氮磷比为6∶1条件下，小头端菱形藻生长最佳。[结论]小头端菱形藻的最适光照度为3000 lx，最适氮磷比为6∶1。
[목적]위진일보탐색소두단릉형조(Nitzschia capitellata Hust.)작위우질이료、생물능원적잠능，재실내조건하대소두단릉형조생장적최괄광조강도、담린비등배양조건진행연구。[방법]설정불동광조도제도，재상동영양、온도(25±1)℃이급광주기(12 h/12 d)하진행배양，사선득출최괄광조강도，기차장담린비설치위5∶1、6∶1、7∶1화8∶1，치우상동조건진행배양。[결과]재3000 lx적광조도하，소두단릉형조적조비증식솔화현존량최고，분별위0.51 d-1화7.97×104 cells/ml。재담린비위6∶1조건하，소두단릉형조생장최가。[결론]소두단릉형조적최괄광조도위3000 lx，최괄담린비위6∶1。
Objective] The aim was to explore the potential of Nitzschia capitel ata as excel ent baits and bioenergy, and the optimal light intensity and nitrogen-to-phos-phorus (N/P) ratio suitable for its growth were researched as wel . [Method] With light intensity gradient set, Nitzschia capitel ata was cultured with the same nutrients at (25 ±1) ℃ and light cycle at 12 h/d to select optimal light intensity. Then, Nitzschia capitel ata was cultured with the same condition, and nitrogen-to-phospho-rus ratios at 5∶1, 6∶1, 7∶1 and 8∶1. [Result] With light intensity at 3 000 lx, specific growth rate and standing stock achieved the highest at 0.51 d-1 and 7.97×104 cel s/ml. The growth condition with nitrogen-to-phosphorus ratio at 6∶1 was the most suitable for Nitzschia capitel ata growth. [Conclusion] The optimal light intensity and nitrogen-to-phosphorus ratio were 3 000 lx and 6∶1, respectively, for Nitzschia capitel ata.