碩士 / 國立臺灣海洋大學 / 水產養殖學系 / 105 / The Caridina longirostris is a small sized species of aquarium shrimp together with its cousin the Amano shrimp (Caridina multidentata) as popular algae cleaners for aquarium. A series of experiments associated with maturation induction, larval culture and environmental condition have been conducted and concluded blow.
Young adults fed polychaete exhibited the fastest gonado development within 6 weeks but showed no significance with those fed oyster. The overall result of dietary treatment on maturation induction effects compared was polychaete > oyster > squid > control. The survival rate (75.6±8.3%) of the metamorphosed post larvae at a salinity level of 20 ‰ was the highest among overall salinity conditions.
Microalgae feeding trials showed that mixed algae (Skeletonema costatum + Thalassiosira weissflogii) yielded a better post larval harvest rate (43.7±2.3%) than any other trials by single algae species fed. Of the single algae comparisons, the post larval harvest rate of those fed Skeletonema costatum (41.2±2.6%) was the best, Thalassiosira weissflogii (22.8±6%) the second best, Tetraselmis chui being the moderate one (11.2±2%), while Isochrysis galabna (0%) and Chaetoceros muelleri (0%) were the lowest two.
There requires at least a timing duration of 3 days post-staying in saline water before those metamorphosed juveniles can get through saline-freshwater acclimation transition process at the onset of the experiment to guarantee a full survivals of 100%.
| Identifer | oai:union.ndltd.org:TW/105NTOU5086027 |
| Date | January 2017 |
| Creators | Chen, Chia-Yu, 陳家瑜 |
| Contributors | Huang, Yii-Shing, 黃沂訓 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 55 |
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