生物多样性 ›› 2019, Vol. 27 ›› Issue (9): 984-992.doi: 10.17520/biods.2019270

• 研究报告 • 上一篇    下一篇

山东东营和烟台潮间带海草床食物网结构特征

宋博1, 2, 陈琳琳2, 闫朗2, 姜少玉2, 刘春云2, 李秉钧1, *, 李宝泉2, *   

  1. 1 烟台大学海洋学院, 山东烟台 264003
    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, 山东烟台 264003
  • 收稿日期:2019-09-01 接受日期:2019-09-25 出版日期:2019-09-20
  • 通讯作者: 李秉钧,李宝泉
  • 基金项目:
    中国科学院前沿科学重点研究项目(QYZDB-SSW-DQC041);美丽中国生态文明建设科技工程专项(XDA23050304,XDA23050202);中国科学院特别交流项目

Food web characteristics of seagrass beds in intertidal of Dongying and Yantai, Shandong Province

Bo Song1, 2, Linlin Chen2, Lang Yan2, Shaoyu Jiang2, Chunyun Liu2, Bingjun Li1, *, Baoquan Li2, *   

  1. 1 School of Ocean, Yantai University, Yantai, Shandong 264003
    2 Key Laboratory of Coastal Biology and Bioresource Utilization, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong 264003
  • Received:2019-09-01 Accepted:2019-09-25 Online:2019-09-20
  • Contact: Li Bingjun,Li Baoquan

为了探明海草床内主要生物类群间的营养关系以及食物网结构, 作者于2018年8月分别在东营黄河口潮间带和烟台西海岸潮间带海草床采集大型底栖生物样品, 采用δ 13C和δ 15N稳定同位素方法, 对生物样品的碳、氮同位素组成进行了测定和分析。结果表明: 东营海草床内生物的δ 13C、δ 15N值范围分别为-21.99‰至-12.13‰和5.23‰-11.05‰, 烟台海草床内生物的δ 13C、δ 15N值范围分别为-18.11‰至-14.06‰和6.60‰-10.22‰。东营海草床主要生物的营养级范围为2.00-3.85, 烟台海草床主要生物的营养级范围为2.00-3.15。根据δ 15N值计算所得的营养级图分析可知两区域海草床内初级消费者主要为滤食性双壳类和多毛类, 次级消费者为植食性或杂食性甲壳类,肉食性鱼类和腹足类。与近海海域大型底栖生物食物网相比, 海草床内底栖生物的营养级均值普遍较低。

关键词: 稳定同位素, 海草床, 食物网, 营养级, 大型底栖生物

To understand the nutritional relationship among benthic organisms and the food web characteristics in seagrass beds, we collected macrobenthic organisms in intertidal zones of the Yellow River Delta of Dongying and the west coast of Yantai in August 2018. We used δ 13C and δ 15N stable isotopes determine trophic position. The range of organisms isotopic values in the Dongying seagrass bed were -21.99‰ to -12.13‰ for δ 13C and 5.23‰ to 11.05‰ for δ 15N; and -18.11‰ to -14.06‰ (δ 13C) and 6.60‰ to 10.22‰ (δ 15N) in the Yantai seagrass bed. In the Dongying seagrass bed, the trophic level of main organisms ranged from 2.00 to 3.85, while in the Yantai seagrass bed the trophic range was from 2.00 to 3.15. According to δ 15N value calculations, we found that the primary consumers in these two area’s seagrass bed were filter feeding bivalves and polychaetes; the secondary consumers were plant-eating or omnivorous crustaceans, carnivorous fish and gastropods. Compared to offshore habitats, the average trophic position of macrobenthic organisms in seagrass beds was relatively low.

Key words: stable isotope, seagrass bed, food web, trophic level, macrobenthos

图1

山东东营和烟台潮间带海草床采样点设置"

表1

东营黄河口和烟台西海岸海草床内主要生物的δ13C和δ15N稳定同位素值"

物种 Species 样本数 Samples δ13C(‰) (Mean ± SD) δ15N(‰) (Mean ± SD)
东营 Dongying
腹足类 Gastropods
托氏昌螺 Umbonium thomasi 67 -14.13 ± 0.10 8.66 ± 0.09
微黄镰玉螺 Euspira gilva 2 -15.54 ± 0.28 8.77 ± 0.02
古氏滩栖螺 Batillaria cumingi 43 -12.85 ± 0.39 7.42 ± 0.25
甲壳类 Crustacea
日本大眼蟹 Macrophthalmus japonicus 4 -14.18 ± 0.14 6.49 ± 0.33
葛氏长臂虾 Palaemon gravieri 5 -12.13 ± 0.12 7.88 ± 0.18
双壳类 Bivalve
青蛤 Cyclina sinensis 8 -20.18 ± 0.08 5.23 ± 0.23
四角蛤蜊 Mactra quadrangularis 8 -19.90 ± 0.32 6.50 ± 0.06
鱼类 Fish
日本海马 Hippocampus mohnikei 2 -21.99 ± 0.52 9.87 ± 0.30
鲻鱼 Mugil cephalus 3 -16.08 ± 0.62 9.46 ± 0.24
矛尾刺虾虎鱼 Chaeturichthys stigmatias 3 -17.59 ± 0.09 11.05 ± 0.15
烟台 Yantai
腹足类 Gastropods
宽带薄梯螺 Epitonium latifasciatum 8 -14.62 ± 0.22 7.76 ± 0.14
扁玉螺 Glossaulax didyma 2 -17.41 ± 0.09 8.19 ± 0.77
古氏滩栖螺 Batillaria cumingi 26 -14.57 ± 0.29 8.00 ± 0.09
甲壳类 Crustacea
绒毛近方蟹 Hemigrapsus penicillatus 3 -14.75 ± 0.07 10.22 ± 0.13
日本大眼蟹 Macrophthalmus japonicus 3 -14.06 ± 0.16 10.03 ± 0.25
双壳类 Bivalve
菲律宾蛤仔 Ruditapes philippinarum 19 -18.11 ± 0.09 7.11 ± 0.64
异白樱蛤 Macoma incongrua 16 -14.64 ± 0.13 6.60 ± 0.31
多毛类 Polychaeta
日本刺沙蚕 Hediste japonica 6 -17.35 ± 0.21 7.66 ± 0.22
红色叶蛰虫 Amphitrite rubra 8 -16.62 ± 0.04 8.94 ± 0.29

图2

东营(a)和烟台(b)海草床内主要生物营养级"

图3

东营(a)和烟台(b)海草床内主要生物δ13C和δ15N比值聚类分析"

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