Optimum Water Temperature for the Growth of Juvenile Common Chinese Cuttlefish,Sepiella maindroni(De Rochebrune 1884)
| Autor: | Zhenyong Liu, Fei Yin, Wang Jiangang, Zhaohong Shi, Shiming Peng, Peng Sun |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Cuttlefish
0303 health sciences biology 04 agricultural and veterinary sciences Anatomy Aquatic Science Trypsin 03 medical and health sciences Animal science Pepsin Digestive enzyme 040102 fisheries biology.protein medicine 0401 agriculture forestry and fisheries Juvenile Growth rate Amylase Lipase 030304 developmental biology medicine.drug |
| Zdroj: | Journal of Shellfish Research, 30 (2). pp. 205-209. |
| ISSN: | 0730-8000 |
| DOI: | 10.2983/035.030.0202 |
| Popis: | The current study was carried out to investigate the influence of water temperature on growth and activity of the digestive enzymes pepsin, trypsin, lipase, and amylase in common Chinese cuttlefish (Sepiella maindroni de Rochebrune). Triplicate groups of S. maindroni (weight ± SD, 4.08 ± 0.26 g; mantle length, 31.37 ± 1.04 mm) were reared at different water temperatures (16°C, 20°C, 24°C, 28°C, and 32°C). S. maindroni instantaneous growth rate (IGR), feeding rate (FR), food conversion (FC), and mantle length increase (ML) were significantly affected by water temperatures. Regression relationships between water temperature and IGR = -0.026T2 1.359T - 12.63 (n = 15, R2 = 0.995); FR = -0.064T2 3.465T - 25.69 (n = 15, R2 = 0.971), FC = -0.069T2 3.55T - 25.01 (n = 15, R2 = 0.983); and ML = -0.238T2 12.27T - 123.9 (n = 15, R2 = 0.992). The optimum temperatures for IGR, FR, FC, and ML were 26.13°C, 27.07°C, 25.72°C, and 25.78°C, respectively. Survival was greatest at 24°C and 28°C (>95%), and was significantly higher than other temperatures. Digestive enzyme activities were highest at 24°C or 28°C, and were significantly higher than at 16°C. In conclusion, the optimum temperature for growth of S. maindroni is 25–27°C based on IGR, FR, FC, and digestive enzyme activities at different temperatures. |
| Databáze: | OpenAIRE |
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