Effect of temperature on incubation period and hatching success of obscure puffer Takifugu obscurus (Abe) eggs
文献类型：期刊论文
| 作者 | Yang, Z; Chen, WF |
| 刊名 | AQUACULTURE
 |
| 出版日期 | 2005 |
| 卷号 | 246期号:1-4页码:173-179 |
| 关键词 | Obscure Puffer Takifugu Obscurus Temperature Embryonic Development Time To 50% Hatch Hatching Success |
| ISSN号 | 0044-8486 |
| 英文摘要 | Artificially fertilized eggs of obscure puffer Takifugu obscurus were obtained by induced spawning of cultured broodstock and incubated at temperatures of 15, 19, 23, and 27 degrees C. The results showed that the optimal temperature for obscure puffer embryonic development ranged from 19 to 23 degrees C, based on total hatch rate, viability of newly hatched larvae 24 h post-hatch, and total mortality rate of eggs. At the given temperature range, the times taken for 50% embryos to hatch were 11.3, 6.6, 5.0, and 4.2 days, respectively. There was significant difference in time to 50% hatch among the temperatures used in this experiment. The power law model, quadratic equation, exponential equation, and effective degree-day model all provided good fits for the relationship between incubation temperature and time to 50% hatch, with r(2) values greater than 0.90. The formulae for these were y=1031.7T(-1.6885), y=44.721-3.1574T+0.0615T(2), y=34.663e(-0.0183T) and y=78.905/(T-7.6033), respectively, where y is time to 50% hatch in days, and T is incubation temperature in degrees Celsius. The effective degree-day model was determined to be the best model because of efficient computation, good fit to the experimental data, and most importantly, the derived parameters, k (the sum of effective degree-days) and to (the temperature of biological zero), have important biological meaning. Based on the effective degree-day model, the to and k values were calculated as 7.6033 degrees C and 78.905 degree-days, respectively. (c) 2005 Elsevier B.V. All rights reserved. |
| 公开日期 | 2012-03-07 |
| 源URL | [http://159.226.73.51/handle/332005/2807]  |
| 专题 | 南京地理与湖泊研究所_湖泊室 |
| 推荐引用方式 GB/T 7714 | Yang, Z,Chen, WF. Effect of temperature on incubation period and hatching success of obscure puffer Takifugu obscurus (Abe) eggs[J]. AQUACULTURE,2005,246(1-4):173-179. |
| APA | Yang, Z,&Chen, WF.(2005).Effect of temperature on incubation period and hatching success of obscure puffer Takifugu obscurus (Abe) eggs.AQUACULTURE,246(1-4),173-179. |
| MLA | Yang, Z,et al."Effect of temperature on incubation period and hatching success of obscure puffer Takifugu obscurus (Abe) eggs".AQUACULTURE 246.1-4(2005):173-179. |
入库方式： OAI收割
来源：南京地理与湖泊研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。