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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/48633

Title: 四種微細藻在兩個溫度下對多齒米蝦幼苗發育成長及活存的影響
The Effect of Four Microalgae Species on the Development, Growth and Survivals of the Larvae of Amano Shrimp (Caridina multidentata) under Two Temperature conditions
Authors: Jude Pean
朱培安
Contributors: NTOU:Department of Aquaculture
國立臺灣海洋大學:水產養殖學系
Keywords: 觀賞蝦;幼苗培育;微細藻;多齒米蝦;生長發育;存活率
Algae;Caridina multidentata;development;growth;larvae culture;Ornamental shrimp;survival
Date: 2017
Issue Date: 2018-08-22T06:06:54Z
Abstract: 摘要 本研究的目的是在探討四種微細藻(周氏扁藻Tetraselmis chuii、等鞭金藻Isochrysis galbana、海鏈藻Thalassiosira weissflogii、牟氏角毛藻Chaetoceros muelleri)做為多齒米蝦(Caridina multidentata)幼蟲餌料並分別於飼育於29℃和25℃兩個溫度下對於發育及成長的影響。蒐集剛從抱卵母蝦釋出之第一期眼幼蟲(Zoea 1)置於100升的 FRP桶中,密度30隻/升,鹽度20 ‰。進行了一個三重複的複因子試驗(4×2) 。結果發現變態蝦苗活存率與培育溫度(25℃,29℃)無關。而變態蝦苗活存率以飼育扁藻(35% 25℃,35% 29℃)及海鏈藻(38% 25℃,36% 29℃)者間無顯差異,但顯著高於飼育牟氏角毛藻(13% 25℃,12% 29℃)者,而以等鞭金藻(9% 25℃,9% 29℃)組最差。水溫無論是25℃或29℃對於幼苗成長並無影響;而飼予周氏扁藻T. chui及海鏈藻T. weissflogii之多齒米蝦幼蟲在同一時間軸無論是體長或步足及泳足長度均高於餵予C. muelleri和I. galbana者,換言之有較好的成長速率。 因此周氏扁藻及海鏈藻是多齒米蝦幼苗最適餌料生物,餌料密度2x105cell/ml,飼育密度30隻/升,鹽度20 ‰,溫度介於25-29℃間。 關鍵詞:觀賞蝦、幼苗培育、微細藻、多齒米蝦、生長發育、存活率
ABSTRACT The objectives of this study were to evaluate four different algae species, Tetraselmis chuii, Isochrysis galbana, Thalassiosira weissflogii, Chaetoceros muelleri as live feed fed to the Amano shrimp (Caridina multidentata) larvae at equal density of 2 x105cells/ml (three replicates) under two temperature conditions on the development, growth and survivals. A triplicated 4x2 factorial experiment was designed. The newly released shrimp larvae (Zoea1) obtained from pouched brooders were placed in 100 L Fiberglass reinforced plastics (FRP) at a density of 30 larvae/liter and a salinity of 20‰ for each experimental unit. Of the survival rate through covariance analysis, there existed no temperature effect between 29°C and 25°C, with the respective values of 9%, 12%, 35%, 36% for the larvae received C. muelleri, I. galbana, T. chuii, T. weissflogii at high temperature condition (29°C) compared to the corresponding values of 9%, 13%, 35%, 38% at low temperature (25°C). It was found that the metamorphosed juveniles with averaged body length of 5.33±0.04 mm on the larvae fed T. chui at day 19, which significantly higher than the corresponding 19-day-age length values of larvae fed T. weissflogii (4.76±0.09 mm), I. galbana (3.68±0.29 mm) and C. muelleri (3.28 ± 0.15 mm) at 29° C. At 25° C, the metamorphosed juveniles appeared on day 19 with averaged body length of 5.30±0.14 mm for those fed T. chui, which were significantly higher than those larvae on day 19 fed T. weissflogii (4.90 ± 0.02 mm), I. galbana (4.02 ± 0.01 mm) and Chaetoceros muelleri (3.28 ± 0.15 mm) respectively. At 29 °C and at day 19, the average length of pereiopod were 1.15±0.21 mm, 0.95±0.09 mm, 0.68±0.03 mm and 0.62±0.02 mm for T. chui, T. weissflogii, I. galbana and C. muelleri respectively. At 25°C and at day 19, in the treatment of Tetraselmis chui, the average length of pereiopods were 1.28 ± 0.12 mm while it was 0.45 ± 0.05 mm, 0.68 ± 0.08 mm and 0.95 ± 0.12 mm for C. muelleri, I. galbana and T. weissflogii respectively. At 29 °C and at day 19, in the treatment of Tetraselmis chui, the average length of pleopod were 0.84 ± 0.06 mm while it was 0.72 ± 0.04 mm, 0.22 ± 0.09 mm and 0.13 ± 0.02 mm for T. weissflogii, I. galbana and C. muelleri respectively. At 25 °C and at day 19, the results were 0.82 ± 0.07 mm, 0.72 ± 0.09 mm, 0.29 ± 0.01 mm and 0.31 ± 0.01 mm for T. chui, T. weissflogii, I. galbana and C. muelleri. In conclusion, both C. muelleri and I. galbana were recommended live diets for planktonic larvae of C. multidentata when culture condition was well control for: temperature 25-29℃, larvae density 30 individuals/L, algae density 2 x 105 cells/ ml, salinity 20‰. Keywords: Algae, Caridina multidentata, development, growth, larvae culture, Ornamental shrimp,
URI: http://ethesys.lib.ntou.edu.tw/cgi-bin/gs32/gsweb.cgi?o=dstdcdr&s=G0010433056.id
http://ntour.ntou.edu.tw:8080/ir/handle/987654321/48633
Appears in Collections:[水產養殖學系] 博碩士論文

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