| 山东荣成马山里海域大型藻类群落结构时空变化研究 |
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| 引用本文： | 李文涛,王欢,仲崇凤,张沛东,康斌.山东荣成马山里海域大型藻类群落结构时空变化研究[J].海洋科学,2022,46(5):74-85. |
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| 作者姓名： | 李文涛 王欢 仲崇凤 张沛东 康斌 |
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| 作者单位： | 中国海洋大学海水养殖教育部重点实验室 山东 青岛 266003,中国海洋大学海水养殖教育部重点实验室 山东 青岛 266003,中国海洋大学海水养殖教育部重点实验室 山东 青岛 266003,中国海洋大学海水养殖教育部重点实验室 山东 青岛 266003,中国海洋大学海水养殖教育部重点实验室 山东 青岛 266003 |
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| 基金项目： | 国家重点研发计划：海洋牧场生境构建与优化技术示范(2019YFD0902101)，国家自然科学基金：鳗草种子休眠和实生苗建成的调节要素与响应过程 (42076100)，中央高校基本科研业务费专项（202012023） |
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| 摘 要： | 山东半岛东端以岩基海岸为主,而浅海多为岩礁底质,适宜大型藻类生长。为探究该海域的大型藻类群落结构特征,于2018年11月(秋)、2019年2月(冬)、5月(春)和8月(夏)对山东荣成马山里海域的三个典型生境(草床区、天然礁区和泥沙区)中的大型藻类进行了调查。结果显示：三种生境共鉴定出大型藻类23种,其中红藻门15属15种,褐藻门3属4种,绿藻门3属4种。物种数最高值出现在天然礁区(22种),最低值出现在泥沙区(12种)。生物量最高值为春季草床区(1567.44±21.29)g.m-2、最低值为秋季的泥沙区(594.45±107.06)g.m-2。大型藻类优势种在不同生境、不同季节不同：草床生境为小珊瑚藻,在四个季节中均占绝对优势；礁区为绿藻向红藻、褐藻变化；泥沙区为从红藻到褐藻变化。Pielow均匀度指数的最高值在三个生境中相近且均出现在冬季；多样性指数最高值、最低值分别出现在礁区与泥沙区；Margalef丰富度指数的最高值出现在秋季的礁区,而最低值出现在夏季的泥沙区；聚类与排序结果表明,大型藻类群落结构在不同生境不同季节差异都显著。结果表明,生境特征和季节性变化是影响底栖大型海藻群落结构的主要因素。
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| 关 键 词： | 大型藻类 群落结构 物种多样性 时空变化 |
| 收稿时间： | 2021/9/28 0:00:00 |
| 修稿时间： | 2021/12/3 0:00:00 |
Spatial and temporal variations in the benthic macroalgal communities along the Mashanli coast of Rongcheng, Shandong Province, China |
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| LI Wen-tao,WANG Huan,ZHONG Chong-feng,ZHANG Pei-dong,KANG Bin.Spatial and temporal variations in the benthic macroalgal communities along the Mashanli coast of Rongcheng, Shandong Province, China[J].Marine Sciences,2022,46(5):74-85. |
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| Authors: | LI Wen-tao WANG Huan ZHONG Chong-feng ZHANG Pei-dong KANG Bin |
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| Institution: | The Key Laboratory of Mariculture,Ministry of Education,Ocean University of China,The Key Laboratory of Mariculture,Ministry of Education,Ocean University of China,The Key Laboratory of Mariculture,Ministry of Education,Ocean University of China,The Key Laboratory of Mariculture,Ministry of Education,Ocean University of China,The Key Laboratory of Mariculture,Ministry of Education,Ocean University of China |
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| Abstract: | Most of the coasts of the Eastern Shandong Peninsula and the sea beds at the shallow coastal area are rocky, and the rocky shores are generally suitable for the growth of macroalgae. To study the macroalgal community structure in this area, an investigation was conducted in November 2018, February, May and August of 2019 in three habitat types: seagrass bed, reef area, and sandy area. The results showed that a total of 23 macroalgal species were identified, among which there were 15 genera, 15 species of Rhodophyta, 3 genera, 4 species of Phaeophyta, and 3 genera, 4 species of Chlorophyta. The highest number of species (22) was recorded in the reef area, while the lowest (12) was recorded in the sandy area. The highest biomass of benthic macroalgae was found in the seagrass bed in summer (1567.44±21.29 g.m-2) and the lowest in the sandy area in autumn (594.45±107.06 g.m-2). The dominant macroalgal species varied with habitats and seasons. Red alga Corallina pilulifera dominated in seagrass bed in the four seasons, while in the reef area, the dominant species shifted from green algae to red and brown algae, and in sandy area, the dominant species shifted from red algae to brown algae. The highest values of Pielow evenness index were similar in the three habitats and all occurred in winter. The highest and lowest diversity indexes were observed in the reef and sandy areas, respectively. The Margalef richness index was the highest in the reef area in autumn, while the lowest value appeared in the sandy area in summer. Results of cluster and ordination analyses showed that there were significant differences in the structure of benthic macroalgal communities in different habitats and different seasons. The results indicate that habitat and season had a significant effect on the structure of benthic macroalgal community. |
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| Keywords: | macroalgae community structure species diversity temporal and spatial variation |
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