Habitat suitability index model for Chinese Sturgeon in the Yangtze River
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摘要: 对与水生生物生存栖息相关的河流底质、水深、水温、流速、水质等生态因子进行研究。提出水生生物的栖息地适合度模型,从生物生存栖息地影响角度对河流治理工程进行科学的评价。以长江珍稀动物中华鲟为研究对象,通过对影响中华鲟的各种生态因子的统计研究,分析整理出适宜其生存繁殖的河流水温、水深、底质、流速、含沙量及食卵鱼10个因子的临界指标,得出了这些因素的适合度曲线。发展了适合评价长江中华鲟栖息地的适合度方程,并用12组实测数据对模型进行了修改验证,提出了适合评价长江中华鲟栖息地适合度模型。Abstract: Human activities,including the construction of the Three Gorges Dam,Gezhouba Dam and other river training projects,are changing the river environment and stream habitat in the Yangtze River in China.As a result,the aquatic organisms,especially,the rare species and fishery fishes with economic value are affected.This paper studies the changing characteristics of the river that affect the aquatic community habitat,such as substrate,water depth,water temperature,water velocity,water quality,etc.Chinese Sturgeons,an anadromous species mainly live in the Yangtze River,are endangered by the construction of dams and other hydraulic projects.Habitat suitability indices for the chinese Sturgeon are proposed and calculated.Based on the research on the main eco-factors influencing growth and reproduction of the species,ten aquatic eco-factors are analyzed for the habitat suitability indices,including water temperature,water depth,substrate,water velocity,sediment concentration,and egg-predatory fishes.The stream habitat for the Chinese Sturgeon is assessed with the model,which integrates these eco-factors.The model is validated by its application to 12 groups of data,and a habitat saitabllity index model for Chinese Sturgeon is presented.
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Key words:
- Yangtze River /
- Chinese Sturgeon /
- habitat suitability index model
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[1] 王彩理,滕瑜,刘丛力,等.中华鲟的繁育特性及开发利用[J].水产科技情报,2002,29(4):174-176. [2] 危起伟,陈细华,杨德国,等.葛洲坝截流24年来中华鲟产卵群体结构的变[J].中国水产科学,2005,12(4):452-457. [3] 李思发.长江重要鱼类生物多样性和保护研究[M].上海:上海科学技术出版社,2001. [4] 危起伟,杨德国,柯福恩.长江中华鲟超声波遥测技术[J].水产学报,1998,22(3):211-217. [5] 余志堂,许蕴开,邓中,等.葛洲坝水利枢纽下游中华鲟繁殖生态的研究[A].鱼类学论文集(第五辑)[C].北京:科学出版社,1986.1-14. [6] 中国科学院水生生物研究所.长江三峡工程生态与环境监测系统水生动物流动监测重点站技术报告[R].沙市:中国科学院水生生物研究所,2005. [7] Crance J H.Habitat Suitability Index models and instream flow suitability curves:Shortnose Sturgeon[R].U S Fish Wildl Serv Biol Rep,1986,82(10.129).31. [8] 常剑波.长江中华鲟繁殖群体结构特征和数量变动趋势研究[D].武汉:中国科学院水生生物研究所,1999. [9] 国家农业信息化工程技术研究中心.中华鲟的人工繁殖.http:∥www.nercita.org.cn/sturgeon-zzxt/liulanxx/zhonghuaxun/zhxyangzhi.htm,2004. [10] 国家农业信息化工程技术研究中心.中华鲟养殖技术.http:∥www.nercita.org.cn/sturgeon-zzxt/liulanxx/zhonghuaxun/zhxyangzhi.htm,2004. [11] 郭忠东,连常平.中华鲟小水体养殖试验初报[J].水产科学,2001,20(2):15-16. [12] 颜远义.中华鲟生物学特性及养殖方法[J].水产科技,2003,(5):14-16. [13] 张洁.鲟鱼养殖的技术要点[J].北京水产,1998(1):18-20. [14] Pottle R,Dadswell M J.Studies on larval and juvenile shortnose sturgeon[R].Report to Northeast Utilities Service Co.Hartford,CT.1979.87. [15] 胡德高,柯福恩,张国良,等.葛洲坝下游中华鲟产卵场的调查研究[J].淡水渔业,1992(5):6-10. [16] Deng Z L,Y.G Xu & Zhao.Anaysis on Acipenser sinensis spawning ground and spawning scales below Gezhouba dam by means of examining the digestive contents of benthic fishes[M].Bordeauc:CEMAGREF pub,1991.243. [17] 李安萍.长江中的鲟鱼及其保护[J].太原师范专科学校学报,1999(4):46-47. [18] 邢湘臣.我国珍稀的中华鲟和白鲟[J].生物学通报,2003,38(9):10-11. -
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