Analytical studies on benthic food webs of aquatic ecosystems using stable isotope analyses
使用稳定同位素分析对水生生态系统的底栖食物网进行分析研究
基本信息
- 批准号:17570012
- 负责人:
- 金额:$ 2.05万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (C)
- 财政年份:2005
- 资助国家:日本
- 起止时间:2005 至 2006
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Investigations of benthic food webs were conducted in estuarine, riverine and lake ecosystems using carbon, nitrogen and sulfur stable isotopes.1. As a simple lake ecosystem, we examined the acidic volcanic Lake Katanuma, which has a very simple community structure. We conducted feeding experiments using a deposit-feeding chironimid larvae (Chironomus acerbiphilus) as the consumer and its potential diets (benthic diatom and phytoplankton). The results showed C. acerbiphilus larvae selectively assimilated phytoplankton and benthic diatoms as fresh deposits from bulk sediments, and assimilated phytoplankton more readily than benthic diatoms. The assimilation rate of benthic diatoms from sediments by the larvae tended to decrease with increasing water depth, while the rate of phytoplankton tended to increase with depth.2. Food sources of benthic consumer were investigated at two locations in a semi-enclosed estuarine lagoon (gamo Lagoon), the Nanakita-river estuary, and diet of the consum … More ers were elucidated from the isotopic values of potential food sources (riverine and terrestrial plant materials, participate matter, macroalgae, benthic and epiphytic diatoms). A 2-source mixing model revealed that benthic diatoms were the important diet of suspension feeders as well as surface-deposit feeders, suggesting the dietary importance of resuspended diatoms. In contrast, phytoplankton became an important diet in the inner lagoon where phytoplanktonic biomass was considerably high.3. We analyzed food sources of Trichoptera in two first-order mountain streams, which indicated that the main food of most Trichoptera species in both streams was benthic particulate organic matter derived from terrestrial plants, and that the food sources did not differ markedly between the streams. In addition, we estimated the food sources of macroinvertebrates in a headwater stream. The snail Semisulcospira libertina assimilated different food sources from other associated macroinvertebrates. The production by chemoautotrophic bacteria contributes to the food sources of a snail in a stream, even in mostly aerobic habitats. Less
利用碳、氮和硫稳定同位素对河口、河流和湖泊生态系统中的底栖生物食物网进行了调查。作为一个简单的湖泊生态系统,我们考察了酸性火山湖片沼湖,它的群落结构非常简单。以底栖硅藻和浮游植物为食料,以一种底栖性摄食性摇蚊幼虫(Chironomus AcerbiPhilus)为食料,进行饲养实验。结果表明,AcerbiPhilus幼虫选择性地同化浮游植物和底栖硅藻作为底泥的新鲜沉积物,比底栖硅藻更容易同化浮游植物。仔鱼对底栖硅藻的同化率随水深的增加而降低,浮游植物的同化率随水深的增加而增加。在半封闭的河口泻湖(伽莫泻湖)的两个地点调查了底栖食用者的食物来源和…的食性。从潜在食物来源(河流和陆生植物物质、参与物质、大型藻类、底栖生物和附生硅藻)的同位素值中了解到更多的ERS。两源混合模型表明,底栖硅藻是悬浮摄食者和表层沉积物摄食者的重要食物,这表明再悬浮硅藻的食物重要性。相反,浮游植物成为内泻湖的重要食物,那里的浮游植物生物量相当高。对两条一级山地溪流毛翅目昆虫的食物来源进行了分析,结果表明,两条溪流毛翅目昆虫的主要食物都是陆生植物的底栖生物颗粒有机质,不同溪流的食物来源没有明显差异。此外,我们还估计了源头溪流中大型无脊椎动物的食物来源。蜗牛半硫螺旋体从其他相关的大型无脊椎动物那里吸收了不同的食物来源。化学自养细菌的产生为溪流中蜗牛的食物来源做出了贡献,即使在大多数好氧的栖息地也是如此。较少
项目成果
期刊论文数量(27)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Swimming behaviour of Chironomus acerbiphilus larvae in Lake Katanuma.
片沼湖中摇蚊幼虫的游泳行为。
- DOI:
- 发表时间:2005
- 期刊:
- 影响因子:0
- 作者:Wakae N;Ishii N;Shikano S. Uchida S.;Doi H.;Takagi S.
- 通讯作者:Takagi S.
Contribution of chemoautotrophic production to freshwater macro- invertebrates in a headwater stream
化能自养生产对源头淡水大型无脊椎动物的贡献
- DOI:
- 发表时间:2006
- 期刊:
- 影响因子:0
- 作者:Doi H.;Takagi A.;Mizota C.;Okano J.;Nakano S.;Kikuchi E.
- 通讯作者:Kikuchi E.
Selective assimilation by deposit feeders : experimental evidence using stable isotope ratios.
沉积物饲养者的选择性同化:使用稳定同位素比率的实验证据。
- DOI:
- 发表时间:2006
- 期刊:
- 影响因子:0
- 作者:Itino;T.;Itioka;T.;Davies;S.J.;Doi H.
- 通讯作者:Doi H.
Effects of different feeding habits of three bivalve species on sediment characteristics and benthic diatom abundance
- DOI:10.3354/meps299067
- 发表时间:2005-01-01
- 期刊:
- 影响因子:2.5
- 作者:Kanaya, G;Nobata, E;Kikuchi, E
- 通讯作者:Kikuchi, E
Contribution of chemoautotrophic production of freshwater macroinvertebrates in a head water stream
源头水流中淡水大型无脊椎动物化学自养生产的贡献
- DOI:
- 发表时间:2006
- 期刊:
- 影响因子:0
- 作者:E.Kikuchi;K.Yasuda;H.Doi et al.
- 通讯作者:H.Doi et al.
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KIKUCHI Eisuke其他文献
KIKUCHI Eisuke的其他文献
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{{ truncateString('KIKUCHI Eisuke', 18)}}的其他基金
NALYTICAL STUDY ON FOODWEB OF COASTAL ECOSYSTEM OF LAKE : CONNECTION BETWEEN PLANKTONIC AND BENTHIC FOOD CHAINS
湖泊沿岸生态系统食物网解析研究:浮游生物与底栖食物链之间的联系
- 批准号:
20570013 - 财政年份:2008
- 资助金额:
$ 2.05万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Food web analyses of the saline Lake Chany complex in Western Siberia and the survey of the environment based on NOAA images
西西伯利亚盐湖恰尼湖综合体的食物网分析以及基于 NOAA 图像的环境调查
- 批准号:
16405005 - 财政年份:2004
- 资助金额:
$ 2.05万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Survey of the biotic Community and environment of the saline Lake Chany eomplex in Western Siberia based on NOAA images
基于 NOAA 影像的西西伯利亚恰尼盐湖复合体生物群落和环境调查
- 批准号:
13575004 - 财政年份:2001
- 资助金额:
$ 2.05万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Relationships between benthic animals and detritus deposits in estuarine tidal flats.
河口滩涂底栖动物与碎屑沉积物的关系。
- 批准号:
06640808 - 财政年份:1994
- 资助金额:
$ 2.05万 - 项目类别:
Grant-in-Aid for General Scientific Research (C)
相似海外基金
Evaluation of persistence and accumulation for siloxanes in multi-media focusing on benthic food web
以底栖食物网为重点的多媒体中硅氧烷的持久性和积累评估
- 批准号:
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Contribution of methane to benthic food web in a shallow lake
甲烷对浅湖底栖食物网的贡献
- 批准号:
20570014 - 财政年份:2008
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Entry of Sewage-Derived Organic Matter from McMurdo Station, Antarctica, Into the Benthic Food Web and its Biological Consequences
南极洲麦克默多站污水有机物进入底栖食物网及其生物后果
- 批准号:
9527789 - 财政年份:1996
- 资助金额:
$ 2.05万 - 项目类别:
Continuing Grant
Entry of Sewage-Derived Organic Matter from McMurdo Station, Antarctica, Into the Benthic Food Web and its Biological Consequences
南极洲麦克默多站污水有机物进入底栖食物网及其生物后果
- 批准号:
9796111 - 财政年份:1996
- 资助金额:
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Predator induced impacts on benthic food web structure; to support visit by V.E. Panov, Zoological Institute, Russian Academy of Sciences, St. Petersburg, Russia
捕食者对底栖食物网结构的影响;
- 批准号:
150664-1993 - 财政年份:1993
- 资助金额:
$ 2.05万 - 项目类别:
International: Foreign Researcher (H)