Chambel João, Severiano Vera, Baptista Teresa, Mendes Susana, Pedrosa Rui
MARE - Marine and Environmental Sciences Centre, ESTM, Instituto Politécnico de Leiria, 2520-641 Peniche, Portugal.
Springerplus. 2015 Apr 16;4:183. doi: 10.1186/s40064-015-0967-x. eCollection 2015.
The aim of this study was to evaluate the influence of stocking density (0.5, 1, 2 and 3 fishL(-1)) and commercial marine fish diets (diet A, B, C and D) over four months on specific growth rate, condition factor, percentage without anomalous pigmentation (partial or total lack of white bands -miss-band) and survival of juvenile Amphiprion percula. Results showed that at 0.5 fishL(-1) densities induced the best survival (100%) and also the maximum percentage of fish without miss-band (58.33 +/-4.417%). The maximum SGR was obtained for the 0.5 fishL(-1) (0.459 ± 0.023% cm/day). However, the best condition factor (2.53 +/- 0.27) was achieved for 2 fishL(-1) densities. There were no significant differences in survival (68.9 to 84.5%), fish without miss-bands (18.03 to 26.92%) and condition factor (1.92 to 2.1) among diets during the experimental period. On the other hand, diet C (with 41% crude protein) supported the best SGR (0.485 ± 0.001% cmday(-1)). The results suggested that stocking density are critical and more relevant when compared with the different diet tested, namely on specific growth rate, condition factor, the miss-band and survival of juvenile percula clownfish. This study has particular significance with regards to anemonefishes husbandry in terms of survival and production efficiency.
本研究的目的是评估四个月内放养密度（0.5、1、2和3尾/升）和商业海水鱼饲料（饲料A、B、C和D）对眼斑双锯鱼幼鱼的特定生长率、肥满度、无异常色素沉着（部分或完全缺乏白色条纹——错带）百分比和存活率的影响。结果表明，在0.5尾/升的密度下，存活率最高（100%），且无错带的鱼的百分比也最高（58.33±4.417%）。0.5尾/升密度下的特定生长率最高（0.459±0.023%厘米/天）。然而，2尾/升密度下的肥满度最佳（2.53±0.27）。在实验期间，不同饲料组在存活率（68.9%至84.5%）、无错带的鱼（18.03%至26.92%）和肥满度（1.92至2.1）方面没有显著差异。另一方面，饲料C（粗蛋白含量为41%）的特定生长率最佳（0.485±0.001%厘米/天）。结果表明，与所测试的不同饲料相比，放养密度至关重要，对眼斑双锯鱼幼鱼的特定生长率、肥满度、错带和存活率影响更大。本研究在海葵鱼养殖的存活率和生产效率方面具有特殊意义。
