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作者在坦桑尼亚北部Taa礁的两个观测点进行了一项为期12个月的补生模式研究。因为其中的一个观测点受到炸药捕鱼的严重破坏,所以本文的主旨就是考察这对于珊瑚补生可能有什么影响。研究结果表明,珊瑚的补生有相当强的季节性,这两个观测点的补生高峰期都是在4月份。补生作用的高峰期与水温的高峰以及低沉积速率相巧合。作者观察到在珊瑚受到不同程度损害的观测点之间有显著的差异,比较高的补生速度发生在受到干扰最低的观测点,使人想到补生速度受到珊瑚覆盖的影响。还观察到在本实验中所使用的固着瓦的上下表面之间,补生珊瑚虫的分布也有显著差异,珊瑚幼虫优先固着在下表面上。总而言之,Taa礁的炸药捕鱼看起来确实有很大的影响,因为它使能生存的珊瑚幼虫群落消失了。这样就减少了受损害区域内重新栖居的新成员的供应。除了重新栖居水平外,对于沉积作用速率以及与其它生物争夺空间的斗争等其他一些因素也进行了考察,但是看来这些因素在该研究观测点对于决定补生作用的水平没有起主要作用。
The authors conducted a 12-month refill study at two observation sites in Taa Reef, northern Tanzania. Since one of the observation points was severely damaged by the fishing of explosives, the main thrust of this paper is to examine how this may have an impact on coral recharge. The results show that the coral reef has a very strong seasonal, the two observation points are in the peak period of refill in April. The peak of the rebirth coincides with the peak of the water temperature and the low sedimentation rate. The authors observed a significant difference between the observation points where corals suffered varying degrees of damage, and the higher rate of rehydration occurred at the lowest observed point of observation, reminiscent of the effect of reefing on coral cover. It was also observed that there was also a significant difference in the distribution of remnant polyps between the upper and lower surfaces of the shingles used in this experiment, with coral larvae preferentially anchored to the lower surface. All in all, dynamite fishing in Taa Reef does seem to have a significant impact, as the community of coral larvae that it has survived vanishes. This will reduce the supply of new members re-dwelling in the affected area. In addition to re-dwelling, other factors such as the rate of sedimentation and the fight against other space for biological competition were examined, but it appears that these factors did not play a major role in determining the level of refill at the study site.