| ZHOU Jian,SONG Jingjing,BAI Qianling,LIU Chengyue,ZHANG Zhipeng,TANG Haitian. 2016. Habitat suitability of Scapharca subcrenata (Lischke) in the shallow water of the Xiaoheishan Island. Acta Oceanologica Sinica, 35(12):51－57 |
| Habitat suitability of Scapharca subcrenata (Lischke) in the shallow water of the Xiaoheishan Island |
| 小黑山岛潮下水生层生境适宜性分析-以毛蚶为例 |
| Received:October 19, 2015 Revised:June 13, 2016 |
| DOI：10.1007/s13131-016-0958-y |
| Key words:Scapharca subcrenata (Lischke) habitat suitability index restoration shallow water |
| 中文关键词: 毛蚶 生境适宜性指数 修复 潮下水生层 |
| 基金项目: |
| Author Name | Affiliation | E-mail | | ZHOU Jian | Shandong Marine Forecast and Hazard Mitigation Service, Qingdao 266104, China | | | SONG Jingjing | Marine Biology Institute of Shandong Province, Qingdao 266104, China | | | BAI Qianling | Tianjin University of Science and Technology, Tianjin 300457, China | | | LIU Chengyue | College of Marine Life, Ocean University of China, Qingdao 266100, China | | | ZHANG Zhipeng | College of Marine Life, Ocean University of China, Qingdao 266100, China | | | TANG Haitian | Yantai Marine Environment Monitoring Central Station of State Oceanic Administration, Yantai 264006, China | tanghaitian0824@163.com |
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| Abstract: |
| The habitat suitability index (HSI) model was used to identify potential sites for sustainable restoration of ark shell, Scapharca subcrenata (Lischke), in the shallow water of Xiaoheishan Island, using a geographic information system framework. The seven input variables of the HSI model were sediment composition, water temperature, salinity, dissolved oxygen, water depth, pH, and ammonia. A non-linear suitability function for each variable factor was used to transform the value into a normalized quality index ranging from 0 (non-suitability) to 1 (best suitability). In present study, the analysis of habitat suitability was conducted for four seasons respectively. The majority of the study area has a high HSI value (>0.6) year round, which implies a strong suitability for restoration, with the optimal habitat located on the eastern side of the island. Correspondence analysis indicated that water temperature was the main factor causing seasonal variation, while sediment composition and water depth were the two major reasons for the differences in sites. The results of this work could provide support for restoration decision making through identification of potential sites for sustainable establishment of S. subcrenata. |
| 中文摘要: |
| 以小黑山岛潮下水生层为研究区域，利用生境适宜性指数（habitat suitability index，HSI）模型，同时结合GIS空间分析，选划出适宜毛蚶的增殖修复区域。综合文献查阅和咨询专家咨询的方式，确定影响毛蚶生存的7个重要影响因子，分别为：底质类型，水温，盐度，溶解氧，水深，pH和氨氮。结合专家赋值法和层次分析法确定每个评价因子的权重，利用GIS空间分析模块将现状调查数据进行插值、重分类和栅格计算，绘制研究区域目标种群生境适宜性地图。结果表明：对于刺参和紫贻贝，研究区域均适宜其生长繁殖，同一物种，相同季节在空间上无站位差异，但各季节的生境适宜性分区变化明显；对于魁蚶来说，东北部海域较适宜增殖，其次为西部海域，四季均以较适宜生境为主，仅冬季出现基本适宜生境。水温是造成季节差异的主要因素，底质类型则是引起生境站位差异的重要原因。可为后续的生物多样性保育和生态修复提供基础资料参考。 |
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