NUTRIENT LIMITATIONS, MICROBIAL FOOD WEBS, AND BIOLOGICAL C-PUMPS - SUGGESTED INTERACTIONS IN A P-LIMITED MEDITERRANEAN
文献类型：期刊论文
| 作者 | THINGSTAD, TF ; RASSOULZADEGAN, F |
| 刊名 | MARINE ECOLOGY-PROGRESS SERIES
 |
| 出版日期 | 1995 |
| 卷号 | 117期号:1-3页码:299-306 |
| 关键词 | PHOSPHORUS LIMITATION MICROBIAL FOOD WEBS CARBON CYCLES MARINE BIOGEOCHEMISTRY |
| ISSN号 | 0171-8630 |
| 英文摘要 | In light of evidence suggesting that both phytoplankton and bacteria in the Mediterranean Sea are limited by the availability of phosphorus rather than of nitrogen, and that most of the P in the photic zone during summer stratification exists as dissolved organic compounds (DOP), we address the question of how these observations may interact with the 'biological pump' transporting carbon to deep waters. From theoretical considerations, the C storage via sinking particles should function better in a P- than in an N-limited system. It is argued, however, that the microbial food web during summer stratification has a net accumulation of dissolved organic carbon (DOG) and DOP. The limited data available suggest a high DOC:DOP value which would make downwards transport of DOC with winter deep water formation a potentially effective mechanism in C sequestration from the atmosphere. Part of the DOC accumulating in the photic zone appears to be readily biodegradable. This is in conflict with a simple model of phytoplankton-bacterial competition for phosphate since phytoplankton, as an inferior competitor, would be expected to be reduced in biomass until autochthonous production of organic C falls to a level where bacteria become C-limited. The conflict is resolved by including microzooplankton grazing as a controlling factor of bacterial biomass. |
| 学科主题 | Environmental Sciences & Ecology; Marine & Freshwater Biology; Oceanography |
| 原文出处 | INTER-RESEARCH |
| 语种 | 英语 |
| 公开日期 | 2012-02-13 |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/9290]  |
| 专题 | 南海海洋研究所_海洋微食物网高被引文献 |
| 推荐引用方式 GB/T 7714 | THINGSTAD, TF,RASSOULZADEGAN, F. NUTRIENT LIMITATIONS, MICROBIAL FOOD WEBS, AND BIOLOGICAL C-PUMPS - SUGGESTED INTERACTIONS IN A P-LIMITED MEDITERRANEAN[J]. MARINE ECOLOGY-PROGRESS SERIES,1995,117(1-3):299-306. |
| APA | THINGSTAD, TF,&RASSOULZADEGAN, F.(1995).NUTRIENT LIMITATIONS, MICROBIAL FOOD WEBS, AND BIOLOGICAL C-PUMPS - SUGGESTED INTERACTIONS IN A P-LIMITED MEDITERRANEAN.MARINE ECOLOGY-PROGRESS SERIES,117(1-3),299-306. |
| MLA | THINGSTAD, TF,et al."NUTRIENT LIMITATIONS, MICROBIAL FOOD WEBS, AND BIOLOGICAL C-PUMPS - SUGGESTED INTERACTIONS IN A P-LIMITED MEDITERRANEAN".MARINE ECOLOGY-PROGRESS SERIES 117.1-3(1995):299-306. |
入库方式： OAI收割
来源：南海海洋研究所
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