Show simple item record

dc.contributor.author魏虎进
dc.contributor.author朱小明
dc.contributor.author纪雅宁
dc.contributor.author姜亚洲
dc.contributor.author林楠
dc.contributor.author王云龙
dc.date.accessioned2016-05-17T03:00:51Z
dc.date.available2016-05-17T03:00:51Z
dc.date.issued2013-05-15
dc.identifier.citation应用海洋学学报,2013,32(120):107-114
dc.identifier.issn2095-4972
dc.identifier.otherTWHX201302017
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/108275
dc.description.abstract本研究对2011年春季和秋季在象山港海洋牧场采集的生物消费者及其食物源样品的碳、氮稳定同位素组成进行了分析,通过ISOSOurCE模型计算该海域生物的食物网基础并利用氮稳定同位素数据计算消费者的营养级.结果表明:该海域生物消费者食物源的δ13C值范围介于-13.75‰~-24.29‰之间;根据δ13C值可以将其食物源分为4类:浮游植物、大型海藻、悬浮颗粒有机物(POM)、沉积相颗粒有机物(SOM).浮游植物和SOM是该海域生物食物网的基础,对消费者的碳源贡献率(50.27%)比较大,大型海藻也是消费者的重要碳源(贡献率为35.5%),POM对消费者的碳源贡献率为13.7%.消费者的δ15n值则介于5.40‰~11.85‰之间,消费者的营养级介于2.0~3.7级之间,不同食性的鱼类处于食物网中不同的地位,浮游生物食性的鱼类位于食物网的底端,游泳生物食性的鱼类处于食物链的上层.
dc.description.abstractδ13C and δ15N were used as tools to analysis food web dynamic of marine ranching area in Xiangshan Harbor,where samples of the consumers and their food sources were collected in April and November 2011.IsoSource model were used to construct the food web foundation and stable isotopes achieved to calculate the consumer's trophic level.The results showed that δ13C values of primary producers ranged from-13.75‰ of Enteromorpha prolifra to-24.29‰ of the most depleted POM.The food sources can be sorted into 4 categories based on δ13C value as POM,phytoplankton,SOM and macroalgae.The IsoSource mix model result shows that food web in the studied area strongly supported by phytoplankton and SOM(about 50.27%).Macroalgae is also an important food source for consumer(35.5%).POM appear to be of minor importance in this system(13.7%).Meanwhile,δ15N values of consumer species varied from 5.40‰ to 11.85‰,and the trophic level(TL)ranged from 2.0 to 3.7.The planktivore fish species on the bottom of the food chain and the piscivorous fish on the top of food chain depended on the feeding habits of fishes.
dc.description.sponsorship国家公益性行业(农业)科研专项经费资助项目(201003068); 浙江省近岸水域生物资源开发与保护重点实验室开放基金资助项目(J2011011)
dc.language.isozh_CN
dc.subject海洋生物学
dc.subject食物网
dc.subject食物贡献率
dc.subject营养级
dc.subjectδ13C
dc.subjectδ15N
dc.subject海洋牧场
dc.subject象山港
dc.subjectmarine biology
dc.subjectfood web structure
dc.subjectfood contribution
dc.subjecttrophic level
dc.subjectδ13C
dc.subjectδ15N
dc.subjectmarine ranching
dc.subjectXiangshan Harbor
dc.title基于稳定同位素技术的象山港海洋牧场区食物网基础与营养级的研究
dc.title.alternativeStudy on the food web structure and their trophic levels of marine ranching area in Xiangshan Harbor
dc.typeArticle


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record