頁籤選單縮合
題 名 | Reconsideration of the Surface Structure of Settlement Plates Used in Coral Recruitment Studies |
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作 者 | Nozawa, Yoko; Tanaka, Kouki; Reimer, James D.; | 書刊名 | Zoological Studies |
卷 期 | 50:1 2011.01[民100.01] |
頁 次 | 頁53-60 |
分類號 | 386.394 |
關鍵詞 | Settlement plate; Refuge structure; Scleractinian coral; Recruit; Method; |
語 文 | 英文(English) |
英文摘要 | Plain-surface settlement plates are widely used in coral recruitment research to the almost complete exclusion of plates with other surface types. This study examined whether the surface structure of settlement plates used in coral recruitment studies influences the resultant coral recruits observed on the plate surfaces. Settlement plates with artificially produced micro-crevices (MCs) on the plate surfaces were examined and compared to settlement plates without MCs (plain surfaces). Replicates of the 2 types of settlement plates were deployed side by side at 3 replicate locations for 4 mo during the coral recruitment period, and the number and taxonomic composition of coral recruits on the plate surfaces were compared. Settlement plates with MCs had significantly more coral recruits with a higher variety of species than those without MCs at all 3 locations. There was approximately an order of magnitude difference in the total number of coral recruits between settlement plates with (59-144 recruits/location) and without MCs (1-6 recruits/location). Pocilloporids dominated coral recruits on both types of settlement plates (86%-100%). These results indicate the need to consider the surface structure of settlement plates as a significant factor, along with plate materials and methods of deployment, that influences the resultant coral recruit assemblies observed on settlement plates in coral recruitment studies. |
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