Use of chemical cues by coral reef animal larvae for habitat selection
Use of chemical cues by coral reef animal larvae for habitat selection
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DOI：
10.3354/ab00532
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发表时间：
2013-01-01
期刊：
影响因子：
1.4
通讯作者：
Nakamura, Yohei
中科院分区：
文献类型：
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作者：
Lecchini, David;Nakamura, Yohei
本研究探讨了在日本石垣岛4航道选择水槽中鱼类(6种)、甲壳类(1种)和头足类(1种)幼虫选择栖息地的化学线索的重要性。幼虫对来自珊瑚礁斑块(海草斑块、活珊瑚斑块、死珊瑚斑块和对照水；实验1)和给定珊瑚礁斑块内的微生境(活珊瑚群体、死亡珊瑚群体、海草和同种生物；实验2)的化学线索的吸引力在4通道选择水槽中进行了测试。实验1的结果表明，3种鱼类利用化学线索向礁斑明显移动：绿色色鱼向活珊瑚斑块水域移动，黄花笛鱼和长尾大眼鱼向海草床斑块水域移动。在实验2中，8种鱼中有6种(4种鱼、1种头足类和1种甲壳类)利用化学线索显著地向同种水域移动(Apogon Properuptus、C.viridis、Dascyllus reetatus、L.fulviflamma、Octopus Bluea和Palaemonidae sp.)。总体而言，这些结果表明，海洋物种可以根据嗅觉线索(更具体地说，来自同种生物的线索)主动选择栖息地。此外，这些结果强调了同种线索比其他类型的信息(珊瑚礁斑块和微生境)对于栖息地选择的重要性。鱼类、甲壳类和头足类幼虫与较老的同种生物的社会聚集可能是个体使用同种‘向导’潜在地寻找有益资源(资源的可用性和低死亡率)的结果。
The present study explored the importance of chemical cues for habitat selection by fish (6 species), crustacean (1 species), and cephalopod (1 species) larvae in a 4-channel choice flume at Ishigaki Island, Japan. The larval attraction toward chemical cues from reef patches (sea-grass bed patch, live coral patch, dead coral patch, and control water; Expt 1) and microhabitats within a given reef patch (live coral colonies, dead coral colonies, seagrass, and conspecifics; Expt 2) was tested in a 4-channel choice flume. The results in Expt 1 showed that 3 fish species used chemical cues to move significantly towards reef patches: Chromis viridis toward live coral patch water and Lutjanus fulviflamma and L. gibbus toward seagrass bed patch water. In Expt 2, 6 of 8 species (4 fishes, 1 cephalopod, and 1 crustacean) used chemical cues to move significantly toward conspecific water (Apogon properuptus, C. viridis, Dascyllus reticulatus, L. fulviflamma, Octopus cyanea, and Palaemonidae sp.). Overall, these results suggest that marine species can actively select settlement habitats according to olfactory cues (more specially, cues from conspecifics). Moreover, these results highlight the importance of conspecific cues over other types of information (reef patch and microhabitat) for habitat selection. Social aggregation of fish, crustacean, and cephalopod larvae with older conspecifics may be the result of individuals using conspecific 'guides' to potentially find beneficial resources (availability of resources and low mortality).