Centre of Advanced Study in Marine Biology, Faculty of Marine Sciences, Annamalai University, Portonovo, 608502 Tamilnadu, India.
Anim Reprod Sci. 2013 Jul;140(1-2):103-7. doi: 10.1016/j.anireprosci.2013.04.007. Epub 2013 Apr 20.
Anemonefish are found commonly in reef habitats and they select only limited anemone species to exist their life. This study describes the movement of anemone, Stichodactyla haddoni and its impact on the reproduction of anemonefishes in captivity. The anemone movement was found to be creeping and in straight-line between successive positions (based on overlay mapping). The distance traveled by the host with (60%) and without substrate (20%) varied significantly (P<0.05) at a random direction. Spawning interval of the resident fish (3-4 days) increased significantly to 8-12 days (P<0.001) because of anemone mobility. Furthermore, host locomotion affected the embryonic development of harbored fish clutches. Percentage of egg maturity (3.5-35.3%) showed an exponential decrease with increase in the distance of substrate from the clutches, from 98 to 100% in the absence of host mobility to 3.5-35% with movement of >60cm. This study concludes that the sedentary habitat would enhance the reproduction value of the harbored fish. Further, in captivity providing with a substrate, supplying regular feed and good light intensity could prevent anemone migration and its implications on the reproductive success of the anemonefish.
海葵鱼通常生活在珊瑚礁栖息地，它们只选择有限的海葵物种来维持生命。本研究描述了海葵（Stichodactyla haddoni）的运动及其对圈养海葵鱼繁殖的影响。发现海葵的运动方式是爬行和在连续位置之间呈直线运动（基于重叠映射）。在随机方向上，有基质（60%）和无基质（20%）的宿主移动距离差异显著（P<0.05）。由于海葵的移动性，居住鱼的产卵间隔从 3-4 天显著增加到 8-12 天（P<0.001）。此外，宿主的运动还影响了所寄居鱼卵的胚胎发育。卵成熟度的百分比（3.5-35.3%）随着基质与卵的距离的增加呈指数下降，从 98%到 100%（无宿主移动）到 3.5%-35%（移动距离大于 60cm）。本研究得出结论，固着栖息地将提高所寄居鱼的繁殖价值。此外，在圈养中提供基质、定期投喂和良好的光照强度可以防止海葵迁移及其对海葵鱼繁殖成功的影响。
