全球变化知识资源中心

Knowledge Resources Center for Global Change


Email:
Passwd
验证:
	换一张
Have you forgotten your password? Stay signed in Log In

globalchange > 过去全球变化的重建

DOI:	10.1371/journal.pone.0089391
论文题名:	Krill Excretion Boosts Microbial Activity in the Southern Ocean
作者:	Javier Arístegui; Carlos M. Duarte; Isabel Reche; Juan L. Gómez-Pinchetti
刊名:	PLOS ONE
ISSN:	1932-6203
出版年:	2014
发表日期:	2014-2-19
卷:	9, 期:2
语种:	英语
英文关键词:	Excretion ; Bacterial growth ; Antarctic Ocean ; Marine bacteria ; Grazing ; Phytoplankton ; Antarctica ; Sea water
英文摘要:	Antarctic krill are known to release large amounts of inorganic and organic nutrients to the water column. Here we test the role of krill excretion of dissolved products in stimulating heterotrophic bacteria on the basis of three experiments where ammonium and organic excretory products released by krill were added to bacterial assemblages, free of grazers. Our results demonstrate that the addition of krill excretion products (but not of ammonium alone), at levels expected in krill swarms, greatly stimulates bacteria resulting in an order-of-magnitude increase in growth and production. Furthermore, they suggest that bacterial growth rate in the Southern Ocean is suppressed well below their potential by resource limitation. Enhanced bacterial activity in the presence of krill, which are major sources of DOC in the Southern Ocean, would further increase recycling processes associated with krill activity, resulting in highly efficient krill-bacterial recycling that should be conducive to stimulating periods of high primary productivity in the Southern Ocean.
URL:	http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0089391&type=printable
Citation statistics:
资源类型:	期刊论文
标识符:	http://119.78.100.158/handle/2HF3EXSE/19676
Appears in Collections:	过去全球变化的重建影响、适应和脆弱性科学计划与规划气候变化与战略全球变化的国际研究计划气候减缓与适应气候变化事实与影响

Files in This Item:	Download All

File Name/ File Size	Content Type	Version	Access	License
journal.pone.0089391.PDF（1800KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	View Download

作者单位:

Instituto de Oceanografía y Cambio Global (IOCAG), Universidad de Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain;Instituto Mediterráneo de Estudios Avanzados (IMEDEA), CSIC-UIB, Esporles, Illes Balears, Spain;The UWA Oceans Institute, The University of Western Australia, Perth, Australia;Departmento de Ecología, Facultad de Ciencias, Universidad de Granada, Granada, Spain;Instituto de Oceanografía y Cambio Global (IOCAG), Universidad de Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain;Spanish Bank of Algae (BEA), Telde, Gran Canaria, Spain

Recommended Citation:

Javier Arístegui,Carlos M. Duarte,Isabel Reche,et al. Krill Excretion Boosts Microbial Activity in the Southern Ocean[J]. PLOS ONE,2014-01-01,9(2)

Service
	Recommend this item
	Sava as my favorate item
	Show this item's statistics
	Export Endnote File
Google Scholar
	Similar articles in Google Scholar
	[Javier Arístegui]'s Articles
	[Carlos M. Duarte]'s Articles
	[Isabel Reche]'s Articles
百度学术
	Similar articles in Baidu Scholar
	[Javier Arístegui]'s Articles
	[Carlos M. Duarte]'s Articles
	[Isabel Reche]'s Articles
CSDL cross search
	Similar articles in CSDL Cross Search
	[Javier Arístegui]‘s Articles
	[Carlos M. Duarte]‘s Articles
	[Isabel Reche]‘s Articles
Related Copyright Policies
Null
收藏/分享