张靖凡¹, 蔡恒江^1,2, 赵玥茹¹, 陈文翰¹, 胡思琪¹, 刘远^1,2, 刘长发^1,2
1.大连海洋大学 海洋科技与环境学院, 辽宁 大连 116023;2.辽宁省高校近岸海洋环境科学与技术重点实验室, 辽宁 大连 116023

摘要:
为研究岩相潮间带大型海藻有机碳含量及δ¹³C值的季节变化特征，分别于2016年11月（秋）和2017年2月（冬）、5月（春）、8月（夏）对獐子岛岩相潮间带（39°01'E，122°43'N）的大型海藻进行调查，并对其有机碳含量和δ¹³C值进行分析。结果表明：共鉴定出大型海藻3门49种，其中红藻门24种，占总数的48.98%；褐藻门17种，占总数的34.69%；绿藻门8种，占总数的16.33%。大型海藻种类数为春季（35种） > 冬季（24种）=夏季（24种） > 秋季（23种）。不同种类海藻体内的有机碳含量为15.54%~35.03%，δ¹³C值在-33.42‰~-7.43‰之间变动。不同季节海藻体内有机碳含量为冬季 > 春季 > 夏季 > 秋季，δ¹³C值为夏季>春季>冬季>秋季。
关键词:大型海藻种类季节变化有机碳δ¹³C值
DOI：10.11759/hykx20190829002
分类号:Q918.82
基金项目:国家自然科学基金项目（41306104）；辽宁省教育厅科学研究项目（JL201906）；红海滩湿地项目（PHL-XZ-2017013-002）

Seasonal variation in the total organic carbon contents and the δ¹³C values of macroalgae in the rocky intertidal zone of the Zhangzi island
ZHANG Jing-fan¹, CAI Heng-jiang^1,2, ZHAO Yue-ru¹, CHENG Wen-han¹, HU Si-qi¹, LIU Yuan^1,2, LIU Chang-fa^1,2
1.College of Marine Technology and Environment, Dalian Ocean University, Dalian 116023, China;2.Key Laboratory of Nearshore Marine Environmental Research, Dalian 116023, China
Abstract:
To study the seasonal variation in the total organic carbon contents and δ¹³C values of macroalgae in the rocky intertidal zone of Zhangzi island (39°01'E, 122°43'N). The macroalgae was investigated in November (Autumn) 2016, February (Winter), May (Spring), and August (Summer) 2017. At the same time, the total organic carbon contents and δ¹³C values in the collected macroalgae were analyzed. A total of 49 species from 3 phyla of macroalgae were collected. Of these, 24 species (48.98%) were Rhodophyta, 17 species (34.69%) were Phaeophyta, and 8 species (16.33%) were Chlorophyta. The number of macroalgae species were 35 in spring, 24 in winter, 24 in summer, and 23 in autumn. The total organic carbon content of the different species of macroalgae was 15.54%- -35.03%, and the δ¹³C value was -33.42%- -7.43%. The total organic carbon contents of macroalgae in different seasons were winter > spring > summer > autumn, and the δ¹³C values were summer > spring > winter > autumn.
Key words:macroalgaespeciesseasonal variationtotal organic carbonδ¹³C value





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