北黄海褡裢岛海藻场邻近海域大型底栖动物群落营养结构的季节变化

doi:10.13287/j.1001-9332.202307.029

应用生态学报 ›› 2023, Vol. 34 ›› Issue (7): 1763-1770.doi: 10.13287/j.1001-9332.202307.029

• 稳定同位素生态学专栏 • 上一篇下一篇

北黄海褡裢岛海藻场邻近海域大型底栖动物群落营养结构的季节变化

董世淇¹, 张合烨¹, 孙国庆¹, 李磊¹, 安文聪¹, 张琰超¹, 王兆国¹, 高东奎¹, 田涛^1,2, 吴忠鑫^1,2*

¹大连海洋大学辽宁省海洋牧场工程技术研究中心, 辽宁大连 116023;
²设施渔业教育部重点实验室, 辽宁大连 116023

收稿日期:2023-02-27 接受日期:2023-05-04 出版日期:2023-07-15 发布日期:2024-01-15
通讯作者: *E-mail: wuzhongxin@dlou.edu.cn
作者简介:董世淇, 男, 1997年生, 硕士研究生。主要从事大型底栖动物群落生态学研究。E-mail: 15541113979@163.com
基金资助:
国家自然科学基金项目(41906125)、辽宁省教育厅2022年度高校基本科研项目(LJKMZ20221120)、大连市科技创新基金项目(2022JJ13FG112,2021JJ11CG001)、大连市支持高层次人才创新创业项目(2020RQ112)和国家重点研发计划项目(2019YFD0901304)

Seasonal variations of macrozoobenthic community trophic structure in the waters adjacent to the seaweed beds of Dalian Island in the North Yellow Sea

DONG Shiqi¹, ZHANG Heye¹, SUN Guoqing¹, LI Lei¹, AN Wencong¹, ZHANG Yanchao¹, WANG Zhaoguo¹, GAO Dongkui¹, TIAN Tao^1,2, WU Zhongxin^1,2*

¹Center for Marine Ranching Engineering Science Research of Liaoning, Dalian Ocean University, Dalian 116023, Liaoning, China;
²Key Laboratory of Environment Controlled Aquaculture, Ministry of Education, Dalian 116023, Liaoning, China

Received:2023-02-27 Accepted:2023-05-04 Online:2023-07-15 Published:2024-01-15

摘要/Abstract

摘要： 为探明大型海藻盛衰期间海藻碎屑输出变化对邻近生境大型底栖动物群落营养结构的影响,于2020年5月(海藻生长期)和8月(海藻衰亡期)在北黄海褡裢岛海藻场邻近海域采集大型底栖动物,运用碳氮稳定同位素技术分析了大型底栖动物群落营养结构的季节性变化。结果表明: 2020年5月和8月大型底栖动物的δ¹³C和δ¹⁵N值分别为-23.14‰～-14.24‰、6.21‰～12.90‰和-22.36‰～-14.13‰、5.33‰～12.00‰。置换多元方差分析(PERMANOVA)结果表明,大型底栖动物月份间δ¹³C值差异显著,而δ¹⁵N值差异不显著。基于欧氏距离,两个月份的大型底栖动物群落均可划分为5组营养功能群。5月大型底栖动物营养级位于2.00(小亮樱蛤)～ 3.97(锥唇吻沙蚕),8月位于2.00(小亮樱蛤)～3.96(锥唇吻沙蚕)。反映群落营养结构指标的δ¹³C 范围、δ¹⁵N 范围、平均质心距离、总面积以及矫正标准椭圆面积均以8月取值更高,表明褡裢岛近岸海藻场邻近海域大型底栖动物群落的摄食营养多样性水平和营养生态位宽幅在海藻衰亡季节更高。

关键词: 稳定同位素, 海藻碎屑, 营养功能群, 营养生态位

Abstract: To investigate the effects of algal detritus export on the trophic structure of macrozoobenthic community in the adjacent benthic habitat during the bloom and decline of macroalgae, we collected macrozoobenthos from the adjacent sea area of Dalian Island in the North Yellow Sea in May (the algal bloom period) and August (the algal decay period) of 2020. We quantifyied the seasonal changes in the trophic structure of macrozoobenthic community by using carbon and nitrogen stable isotope techniques. Results showed that δ¹³C and δ¹⁵N values of macrozoo-benthos in May ranged from -23.14‰ to -14.24‰, 6.21‰ to 12.90‰, respectively, and -22.36‰ to -14.13‰, 5.33‰ to 12.00‰, respectively in August. Results of PERMANOVA analysis showed that δ¹³C values of macrozoobenthos differed significantly between the two months, while δ¹⁵N values were not significantly different. Based on the Euclidean distance, the macrozoobenthic communities in both months could be classified into five trophic functional groups. The trophic levels of macrozoobenthos ranged from 2.00 (Nitidotellina minuta) to 3.97 (Glycera onomichiensis) in May and from 2.00 (N. minuta) to 3.96 (G. onomichiensis) in August. The δ¹³C range, δ¹⁵N range, mean centroid distance, total area and corrected standard ellipse areas which represented community trophic structure indices in August were higher than those in May. Our results indicated that the trophic diversity level and trophic niche width of the macrozoobenthic community in the adjacent sea area of the seaweed bed were higher in the algal decline season.

Key words: stable isotope, seaweed detritus, trophic functional group, trophic niche

董世淇, 张合烨, 孙国庆, 李磊, 安文聪, 张琰超, 王兆国, 高东奎, 田涛, 吴忠鑫. 北黄海褡裢岛海藻场邻近海域大型底栖动物群落营养结构的季节变化[J]. 应用生态学报, 2023, 34(7): 1763-1770.

DONG Shiqi, ZHANG Heye, SUN Guoqing, LI Lei, AN Wencong, ZHANG Yanchao, WANG Zhaoguo, GAO Dongkui, TIAN Tao, WU Zhongxin. Seasonal variations of macrozoobenthic community trophic structure in the waters adjacent to the seaweed beds of Dalian Island in the North Yellow Sea[J]. Chinese Journal of Applied Ecology, 2023, 34(7): 1763-1770.

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北黄海褡裢岛海藻场邻近海域大型底栖动物群落营养结构的季节变化

Seasonal variations of macrozoobenthic community trophic structure in the waters adjacent to the seaweed beds of Dalian Island in the North Yellow Sea

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