THE EFFECT OF TEMPERATURE AND FOOD CONCENTRATION ON INGESTION RATES OF QUINQUELOCULINA SEMINULA ON THE DIATOM NITZSCHIA CLOSTERIUM

doi:10.2113/gsjfr.49.1.3

	THE EFFECT OF TEMPERATURE AND FOOD CONCENTRATION ON INGESTION RATES OF QUINQUELOCULINA SEMINULA ON THE DIATOM NITZSCHIA CLOSTERIUM
	Lei, Yanli 1,5,6; Li, Chengchun 1,5; Li, Tiegang 2,4,5; Jian, Zhimin 3
刊名	JOURNAL OF FORAMINIFERAL RESEARCH
	2019-01
卷号	49 期号:1 页码:3-10
ISSN号	0096-1191
DOI	10.2113/gsjfr.49.1.3
英文摘要	The majority of sediment-dwelling foraminifera are thought to be deposit feeders. They use their reticulopodia to gather sediment with associated algae, organic detritus, and bacteria. Uptake of diatoms by foraminifera have been observed but rarely quantified. We measured the clearance (gathering) rate and ingestion rate of diatoms by the common benthic foraminifer Quinqueloculina seminula using Nitzschia closterium as prey under laboratory culture conditions. Grazing experiments were performed to evaluate the effects of temperature (at 12, 15, 18, 21, and 24 degrees C) and food availability (10 to 800 cells mm(-2)) on uptake rates of diatoms. The clearance rates, estimated from the disappearance of food items, were variable (0.59-4.4 mm(2) foram(-1) h(-1)) and did not show a clear relationship with food availability. The maximum clearance rates increased from 1.80 +/- 0.21 to 2.69 +/- 0.32 mm(2) foram(-1) h(-1) when temperature increased from 12 to 18 degrees C and decreased to 2.28 +/- 0.25 mm(2) foram(-1) h(-1) at 24 degrees C. Ingestion rates varied from 1.0 to 43 x 10(3) diatoms foram(-1) h(-1), following a hyperbolic response to food concentrations at all experimental temperatures. The maximum individual ingestion rates increased from 842 +/- 180 to 1648 +/- 480 (mean +/- SE) cells foram(-1) h(-1) and then decreased to 316 +/- 54 cells foram(-1) h(-1) as temperature increased from 12 to 24 degrees C. Experimental results revealed that 12-18 degrees C was the optimal temperature range for Q. seminula feeding for specimens adapted to local conditions. Our study indicates that Q. seminula plays an ecological role by feeding upon benthic diatoms in marine benthic ecosystems.
资助项目	National Basic Research Program of China 973 Program[2015CB755902]
WOS关键词	SEA BENTHIC FORAMINIFERA ; INTERTIDAL MUDFLAT ; TROPHIC INTERACTIONS ; MARINE-SEDIMENTS ; HYDROBIA-ULVAE ; BIOMASS ; CARBON ; PHYTODETRITUS ; CULTURE ; MICROPHYTOBENTHOS
WOS研究方向	Paleontology
语种	英语
出版者	CUSHMAN FOUNDATION FORAMINIFERAL RESEARCH
WOS记录号	WOS:000457207500002
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/25343]
专题	自然资源部第一海洋研究所
通讯作者	Lei, Yanli; Jian, Zhimin
作者单位	1.Chinese Acad Sci, Lab Marine Organism Taxon & Phylogeny, Inst Oceanol, Qingdao 266071, Peoples R China 2.SOA, Key Lab Marine Sedimentol & Environm Geol, Inst Oceanog 1, Qingdao 266061, Peoples R China 3.Tongji Univ, State Key Lab Marine Geol, Shanghai, Peoples R China 4.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 6.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Lei, Yanli,Li, Chengchun,Li, Tiegang,et al. THE EFFECT OF TEMPERATURE AND FOOD CONCENTRATION ON INGESTION RATES OF QUINQUELOCULINA SEMINULA ON THE DIATOM NITZSCHIA CLOSTERIUM[J]. JOURNAL OF FORAMINIFERAL RESEARCH,2019,49(1):3-10.
APA	Lei, Yanli,Li, Chengchun,Li, Tiegang,&Jian, Zhimin.(2019).THE EFFECT OF TEMPERATURE AND FOOD CONCENTRATION ON INGESTION RATES OF QUINQUELOCULINA SEMINULA ON THE DIATOM NITZSCHIA CLOSTERIUM.JOURNAL OF FORAMINIFERAL RESEARCH,49(1),3-10.
MLA	Lei, Yanli,et al."THE EFFECT OF TEMPERATURE AND FOOD CONCENTRATION ON INGESTION RATES OF QUINQUELOCULINA SEMINULA ON THE DIATOM NITZSCHIA CLOSTERIUM".JOURNAL OF FORAMINIFERAL RESEARCH 49.1(2019):3-10.