中国科学院南海海洋研究所机构知识库
Advanced  
SCSIO OpenIR  > 海洋微食物网高被引文献  > 期刊论文
学科主题: Environmental Sciences & Ecology; Marine & Freshwater Biology; Microbiology
题名: Microbial processes in cold oceans .1. Relationship between temperature and bacterial growth rate
作者: Rivkin, RB ; Anderson, MR ; Lajzerowicz, C
关键词: bacteria ; cold ocean ; growth rate ; microbial trophic level ; polar ; temperature ; thymidine conversion factor
刊名: AQUATIC MICROBIAL ECOLOGY
发表日期: 1996-01-01
卷: 10, 期:3, 页:243-254
部门归属: FISHERIES & OCEANS CANADA, SCI BRANCH, ST JOHNS, NF A1C 5X1, CANADA
英文摘要: Despite the obvious relevance of the high latitude oceans to models and budgets of biogenic carbon, the seasonal patterns of energy flow through the lower food web in this region are poorly understood. It has been suggested that, in high latitude and cold oceans, the rates of bacterial metabolism and growth are low and are depressed to a much greater degree than those of co-occurring phytoplankton and metazoan heterotrophs. The low-temperature suppression of bacterial growth would reduce microbial food web activity, bacteria would consume and recycle less primary production and more phytoplankton carbon would be available to metazoan grazers. The implications of this scenario for models of oceanic carbon flow are profound. In this paper, we present an analysis of 66 published studies on temperature and growth rate for bacteria from the World Ocean, including polar regions, and examine the results of a field investigation of bacterioplankton growth in seasonally cold Newfoundland (eastern Canada) coastal waters. Based upon the analysis of published data, where approximately 50 % of the observations were from environments less than or equal to 4 degrees C, we report a weak (r(2) - 0.058, n = 231) relationship between specific growth rate (SGR) and temperature with a Q(10) = 1.5. The mean (0.39 to 0.41 d(-1)) and median (0.25 to 0.29 d(-1)) SGR of bacteria from cold (less than or equal to 4 degrees C) and warm (>4 degrees C) waters were not significantly different. For both the published data as well as for the field study in Conception Bay, Newfoundland, the SGR was significantly greater (p < 0.01) when computed from empirical thymidine conversion factors than from theoretical or literature derived thymidine conversion factors. Our analysis suggests that the growth rates of bacterioplankton from cold and temperate oceans are similar at their respective ambient temperatures, when the appropriate conversion factors are used to compute growth. We propose that bacteria-based food webs and microbial trophic pathways are as important in overall energy and material cycling in high latitude oceans as they are at lower latitudes.
语种: 英语
原文出处: 查看原文
内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/9354
Appears in Collections:海洋微食物网高被引文献_期刊论文

Files in This Item: Download All
File Name/ File Size Content Type Version Access License
Microbial processes in cold oceans .1. Relationship between temperature and bacterial growth rate.pdf(1155KB)----开放获取--View Download

Recommended Citation:
Rivkin, RB; Anderson, MR; Lajzerowicz, C.Microbial processes in cold oceans .1. Relationship between temperature and bacterial growth rate,AQUATIC MICROBIAL ECOLOGY,1996,10(3):243-254
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Rivkin, RB]'s Articles
[Anderson, MR]'s Articles
[Lajzerowicz, C]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Rivkin, RB]‘s Articles
[Anderson, MR]‘s Articles
[Lajzerowicz, C]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
文件名: Microbial processes in cold oceans .1. Relationship between temperature and bacterial growth rate.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2018  中国科学院南海海洋研究所 - Feedback
Powered by CSpace