| GUO Kai,ZHAO Wen,WANG Shan,LIU Baozhan,ZHANG Peng. 2016. Food web structure and trophic levels in a saltwater pond sea cucumber and prawn polyculture system. Acta Oceanologica Sinica, 35(4):58－62 |
| Food web structure and trophic levels in a saltwater pond sea cucumber and prawn polyculture system |
| “海参-对虾”混养海水池塘的食物网结构及营养层级研究 |
| Received:October 09, 2014 Revised:July 31, 2015 |
| DOI：10.1007/s13131-016-0834-9 |
| Key words:Aposticbopus japonicas Penaeus japonica stable isotopes food web structure diet composition trophic level |
| 中文关键词: 刺参 日本对虾 稳定同位素 食物网结构 食物组成 营养层级 |
| 基金项目:The National Marine Public Welfare Project of China under contract No.201305005. |
| Author Name | Affiliation | E-mail | | GUO Kai | Key Laboratory of Hydrobiology in Liaoning Province, Dalian Ocean University, Dalian 116023, China | | | ZHAO Wen | Key Laboratory of Hydrobiology in Liaoning Province, Dalian Ocean University, Dalian 116023, China | zhaowen@dlou.edu.cn | | WANG Shan | Key Laboratory of Hydrobiology in Liaoning Province, Dalian Ocean University, Dalian 116023, China | | | LIU Baozhan | Offshore Environment Services Co., Ltd., Tianjin 300452, China | | | ZHANG Peng | Key Laboratory of Hydrobiology in Liaoning Province, Dalian Ocean University, Dalian 116023, China | |
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| Abstract: |
| The food sources of aquacultured Apostichopus japonicus and the trophic levels of organisms in a sea cucumber(A. japonicus) and prawn(Penaeus japonica) polyculture system in a saltwater pond in Zhuanghe, Liaoning Province were examined using carbon and nitrogen stable isotopes. Across organisms, δ13C ranged from(-25.47±0.20)‰ to(-16.48±0.17)‰(mean±SD), and δ15N ranged from(4.23±0.49)‰ to(12.44±0.09)‰. The δ13C and δ15N contents of A. japonicus, P. japonica and Fenneropenaeus chinensis were comparatively higher than those of other organisms. Values of δ13C and δ15N revealed that P. japonica, Hemigrapsus sanguineus and Neomysis japonica comprised the largest component of the diet of A. japonicus. The mean trophic level of the organisms in this saltwater pond polyculture system was(2.75±0.08). P. japonica, A. japonicus, F. chinensis, Synechogobius hasta and Neomysis japonica were in the 3rd trophic level(2-3); jellyfish, H. sanguineus and zooplankton were in the 2nd trophic level(1-2); and Enteromorpha prolifera, benthic microalgae, periphyton and suspended matter primarily consisting of phytoplankton, bacteria and humus were in the primary trophic level(0-1). |
| 中文摘要: |
| 利用碳、氮稳定同位素技术对辽宁省庄河市刺参(Apostichopus japonicus)和对虾(Penaeus japonica)海水混养池塘内的刺参食物来源和池塘内所有生物的营养层级进行了研究。结果表明:生物体内的δ13C变化范围在(-25.47±0.20)‰到(-16.48±0.17)‰之间(平均±标准方差),δ15N变化范围在(4.23±0.49)‰到(12.44±0.09)‰之间。刺参、日本对虾和中国对虾(Fenneropenaeus chinensis)体内的δ13C和δ15N值相对其他生物较高。根据δ13C和δ15N值可以推断出,日本对虾、肉球近方蟹(Hemigrapsus sanguineus)和日本新糠虾(Neomysis japonica)对刺参的食物组成有较高的贡献率。该种养殖模式下,池塘中的生物营养层级为2.75±0.08。日本对虾、刺参、中国对虾、矛尾复虾虎(Synechogobius hasta)、日本新糠虾位于第三营养层级(2-3);水母、肉球近方蟹及浮游动物位于第二营养层级(1-2);浒苔(Enteromorpha prolifera)、底栖微藻、固着生物和包括浮游植物、细菌及腐质在内的悬浮物位于第一营养层级(0-1)。 |
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