| 摘要: |
| 鳗草（Zostera marina L.），又名大叶藻，是北半球沿海分布最广泛的一种海草，国内主要分布于河北、山东、辽宁等省沿海，近些年来随着生境的破坏其分布面积急遽下降, 较大面积连续分布的海草床已经非常少见。本研究首次将声呐探测技术应用到海草床时空分布特征的相关研究中，在河北唐山沿海发现目前中国面积最大的鳗草海草床，海草床面积高达2916.81ha，并对鳗草分布图，水深分布图和生物量、茎枝高度等基本生物学指标也进行了绘制和调查。该发现极大丰富了中国海草数据库, 并为鳗草的深入研究及保护提供了得天独厚的实验基地，也为周边海洋牧场的构建打下良好的基础。 |
| 关键词: 鳗草（Zostera marina L.） 海草床 渤海；唐山 声呐 |
| DOI： |
| 分类号:Q178. 53 |
| 基金项目:国家科技基础性工作专项（2015FY110600）; 国家自然科学基金委员会-山东省人民政府联合资助海洋科学研究中心项目（U1406403）。 |
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| New discovery of larger seagrass beds with areas > 50 ha in temperate waters of china: ⅡThe largest Zostera marina L. seagrass bed in China discovered in the coastal waters of Tangshan in Bohai sea by sonar detection technology |
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zhou yi
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Institute of Oceanology, Chinese Academy of Sciences
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| Abstract: |
| The eelgrass Zostera marina L. is a dominant seagrass species circumglobally distributed in temperate coastal environments in the North Hemisphere, which is mainly distributed in coastal areas of Hebei, Shandong, Liaoning and other provinces in China. Nowadays, larger Z. marina beds are very rare because of the rapid decline resulting from increasingly severe habitat destruction. This study firstly applied sonar detection technology to research the temporal and spatial distribution characteristics of seagrass beds. The largest Z. marina seagrass beds in China was discovered in the coastal waters of Tangshan in Bohai sea with a seagrass bed area of 2916.81ha. The distribution map, water depth distribution map, biomass, stem and branch height and other basic biological indicators were also drawn and investigated. This discovery will greatly enrich the seagrass distribution databases of China, provide a unique site for further research on this species，and lay a good foundation for the construction of surrounding marine ranching. |
| Key words: Zostera marina L. seagrass bed Bohai Tangshan sonar |