Dietary separation between co-occurring copepods in a food-limited tropical coral reef of the Sanya Bay
文献类型：期刊论文
| 作者 | Hu, Simin1; Li, Tao2; Liu, Sheng1; Huang, Hui2 |
| 刊名 | ACTA OCEANOLOGICA SINICA
 |
| 出版日期 | 2020 |
| 卷号 | 39期号:4页码:65 |
| 关键词 | copepod food partitioning Sanya Bay coral reef ecosystem |
| ISSN号 | 0253-505X |
| DOI | 10.1007/s13131-020-1583-3 |
| 英文摘要 | Food differentiation among coexistent species in the field is important strategy for copepods to acquire materials and maintain population stabilization. In situ diet analysis of co-occurring six copepod species in coral waters of the Sanya Bay was conducted using a PCR protocol based on 18S ribosomal gene. Various prey organisms were uncovered, including dinoflagellate, diatom, green algae and plant, protozoa and metazoan. All these spatially coexisting six species showed different dietary diversity, with the food niche breadth (B) ranging from 1.00 (Temora turbinate in morning) to 10.68 (Calanopia elliptica in night). While food overlap between all these copepods were low, with the average value of the diet niche overlap index being approximately 0.09. Even temporally co-existing species sampled from the same time point fed on different groups of prey items with the food overlap index of 0.04 to 0.07 in midday and night but 0 in morning. As the most important dominant copepod in the Sanya Bay, Subeucalanus subcrassus seems to be capable to regulate its feeding, by exhibiting a rhythm of herbivorous feeding in midday and carnivorous feeding in morning and night, to better coordinate with other competitors for utilization of food resources. For most copepods, none of the prey items belonged to the dominant phytoplankton in the ambient water, indicating that copepod can better their survival by widening the choice of potential food resources in food limited environment. The dietary separation observed here might be important strategy for copepod to maintain population stabilization and thriving in the Sanya coastal waters. |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/18464]  |
| 专题 | 南海海洋研究所_中科院海洋生物资源可持续利用重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Trop Marine Bioresources & Ecol, Guangzhou 510301, Peoples R China 2.Chinese Acad Sci, South China Sea Inst Oceanol, Guangdong Prov Key Lab Appl Marine Biol, Guangzhou 510301, Peoples R China 3.Chinese Acad Sci, Trop Marine Biol Res Stn Hainan, Sanya 572000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu, Simin,Li, Tao,Liu, Sheng,et al. Dietary separation between co-occurring copepods in a food-limited tropical coral reef of the Sanya Bay[J]. ACTA OCEANOLOGICA SINICA,2020,39(4):65, 72. |
| APA | Hu, Simin,Li, Tao,Liu, Sheng,&Huang, Hui.(2020).Dietary separation between co-occurring copepods in a food-limited tropical coral reef of the Sanya Bay.ACTA OCEANOLOGICA SINICA,39(4),65. |
| MLA | Hu, Simin,et al."Dietary separation between co-occurring copepods in a food-limited tropical coral reef of the Sanya Bay".ACTA OCEANOLOGICA SINICA 39.4(2020):65. |
入库方式： OAI收割
来源：南海海洋研究所
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