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| 烟台养马岛潮间带大型底栖动物食物网结构特征 |
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刘春云1,2, 姜少玉2,3, 宋博2, 闫朗1,2, 张建设1, 李宝泉2,4, 陈琳琳2,4
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1.浙江海洋大学 国家海洋设施养殖工程技术研究中心 舟山 316000;2.中国科学院烟台海岸带研究所 海岸带生物学与生物资源保护实验室 烟台 264003;3.中国科学院大学 北京 100049;4.中国科学院海洋大科学研究中心 青岛 266071
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| 摘要: |
| 为探明烟台潮间带主要底栖生物类群间的营养关系和食物网结构特征及其季节性变化，于2019年春季（3月）和夏季（7月）在山东烟台养马岛潮间带采集大型底栖动物、沉积颗粒（SOM）、悬浮有机质（POM）、浮游植物和浮游动物样品。利用稳定同位素技术，对养马岛海滩潮间带底栖生物的碳、氮稳定同位素进行测定和分析。结果表明：大型底栖动物在春季和夏季δ13C和δ15N值分别为-20.23‰--12.99‰，5.32‰-10.45‰和-21.91‰--9.88‰，7.01‰-14.17‰。夏季的碳、氮稳定同位素数值范围相较于春季均有所增加，相同大型底栖动物物种的碳、氮稳定同位素值会随季节变化而发生变化。春季该潮间带主要大型底栖动物的营养级范围为1.98-3.49，夏季为1.89-4.00。相同大型底栖动物营养级在季节之间无显著变化（P>0.05）。营养传递顺序可表达为：滤食性软体动物→多毛类→甲壳动物，与能量流动方向一致。 |
| 关键词: 潮间带 大型底栖动物 稳定同位素 营养级 |
| DOI：10.11693/hyhz20191100217 |
| 分类号:Q958.8 |
| 基金项目:美丽中国生态文明建设科技工程专项，XDA23050304号，XDA23050202号；中国科学院前沿科学重点研究项目，QYZDB-SSW-DQC041号；国家海洋局海洋生态系统与生物地球化学重点实验室开放研究基金，LMEB201716号。 |
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| FOOD WEB STRUCTURE OF MACROBENTHOS IN THE INTERTIDAL ZONE OF YANGMA ISLAND, YANTAI, CHINA |
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LIU Chun-Yun1,2, JIANG Shao-Yu2,3, SONG Bo2, YAN Lang1,2, ZHANG Jian-She1, LI Bao-Quan2,4, CHEN Lin-Lin2,4
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1.Zhejiang Ocean University, National Engineering Research Center For Marine Aquaculture, Zhoushan 316000, China;2.Key Laboratory of Coastal Biology and Bioresource Utilization, Yantai Institute of Coastal Zone Research, Chinese Academy of Science, Yantai 264003, China;3.University of Chinese Academy of Sciences, Beijing 100049, China;4.Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China
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| Abstract: |
| To understand the nutrient relationship, food web structure, and their seasonal changes in major benthic communities in Yangma Island, Yantai, Shandong, samples of macrobenthos, sediment particles (SOM), suspended organic matter (POM), phytoplankton, and zooplankton were collected in the intertidal zone of the island in spring (March) and summer (July) 2019. Stable isotopes of carbon and nitrogen in the macrobenthos were measured and analyzed. Results show that the δ13C and δ15N values of macrobenthos were -20.23‰--12.99‰, 5.32‰-10.45‰ in spring and -21.91‰--9.88‰, 7.01‰-14.17‰ in summer, respectively. The stable isotopes values were greater in summer than those in spring, and the values of the same macrobenthos species changed seasonally. The trophic level of major macrobenthos species in spring and summer was 1.98-3.49 and 1.89-4.00, respectively. The nutrient levels of the same macrobenthos in two seasons showed no significant change (P>0.05). The nutrition delivery sequence from low to high was filter feeding mollusk→polychaete→crustacean, which was consistent with the direction of energy flow. |
| Key words: intertidal zone macrobenthos stable isotopes trophic level |