Identification of scleractinian coral recruits from Indo-Pacific reefs
Identification of scleractinian coral recruits from Indo-Pacific reefs
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印度-太平洋珊瑚礁新石珊瑚的鉴定
DOI：
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发表时间：
2003
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影响因子：
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通讯作者：
B. Willis
中科院分区：
文献类型：
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作者：
R. Babcock;A. Baird;Srisakul Piromvaragorn;D. Thomson;B. Willis
由于无法确定最近定居的幼珊瑚，对石珊瑚早期生活史的研究受到阻碍。为了增加珊瑚新兵的分类分辨率，我们比较了21属12科29种已知的父母提出的青少年的骨骼形态。只有3个科的幼鱼可以在它们的第一年里可靠地区分出来：Acroporidae，有一个多孔的共骨，突出的隔膜，没有小柱; Pocilloporidae，有一个坚实的共骨，突出的隔膜和突出的小柱;和Poritidae，有隔膜和突出的牙齿。在其余家庭中的少年检查不能一贯区分。在这些分类群中，骨骼开始时为内部结构很少的上皮，生长缓慢，隔膜发育的模式相似。在这3个不同的家庭，一些其他类群可以识别时，少年是年轻的。Pocilloporidae的属可以区分的原生珊瑚石的直径的大小差异。Isopora，Acropora，Montipora少年可以区分的珊瑚在解决的大小的差异。幼鱼的广播产卵的Porites似乎是区别于那些育雏Porites的隔膜发展的模式和解决的小尺寸。可以区分的类群的数量是最高的，当青少年之间的4和8周龄。在此之后，个体生长速度的变化和骨骼的增厚掩盖了分类群之间的差异。
Study of the early life history of scleractinian corals has been hampered by the inability to identify recently settled juveniles. To increase taxonomic resolution of coral recruits, we compared the morphology of the skeleton of juveniles raised from known parents for 29 species in 21 genera and 12 families. Juveniles from only 3 families could be reliably distinguished throughout their 1st year of life: the Acroporidae, which have a porous coenosteum, prominent septa, and no columella; the Pocilloporidae, which have a solid coenosteum, prominent septa and a prominent columella; and the Poritidae, which have septa with prominent teeth. Juveniles in the remaining families examined could not be consistently distinguished. In these taxa, the skeleton began as an epitheca with little internal structure, growth was slow, and the pattern of septal development was similar. Within the 3 distinctive families, a number of other taxa could be recognized when juveniles were young. Genera of the Pocilloporidae could be distinguished by size differences in the diameter of the primary corallite. Isopora, Acropora, and Montipora juveniles could be distinguished by differences in the size of the corallum at settlement. Juveniles of the broadcast spawning Porites appear to be distinguished from those of brooding Porites by the pattern of septal development and by the small size at settlement. The number of taxa that could be distinguished was highest when juveniles were between 4 and 8 wk old. After this time, variation in the growth rates of individuals and thickening of the skeleton obscured differences between the taxa.