Limits to growth and respiration of bacterioplankton in the Gulf of Mexico.

Limits to growth and respiration of bacterioplankton in the Gulf of Mexico.

10 pages, 2 figures, 5 tables

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Main Authors: Pomeroy, Lawrence R., Sheldon, Joan E., Sheldon, Wade M., Peters, Francesc
Format: artículo biblioteca
Published: Inter Research 1995-02
Subjects:Communitiy respiration, Phosphate, Limiting factors, Gulf of Mexico, Bacterioplankton production,
Online Access:http://hdl.handle.net/10261/183844
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spelling dig-icm-es-10261-1838442020-12-11T08:58:00Z Limits to growth and respiration of bacterioplankton in the Gulf of Mexico. Pomeroy, Lawrence R. Sheldon, Joan E. Sheldon, Wade M. Peters, Francesc Communitiy respiration Phosphate Limiting factors Gulf of Mexico Bacterioplankton production 10 pages, 2 figures, 5 tables We compared microbial community respiration and related parameters in the Gulf of Mexico in January and June 1993. Microbial community respiratory rates in the upper mixed layer varied from lt 0.03 mu-M O-2 h-1 in the central Gulf in January to 1.4 mu-M O-2 h-1 in the Mississippi River plume in June. Although higher respiratory rates were found in June than in January, no significant differences were found in bacterial numbers or mean cell volume. Dissolved free amino acid concentrations were an order of magnitude higher in June, but there was little difference in concentrations of phosphate or monosaccharides between January and June, Enrichment experiments in June showed phosphate to be the primary limiting factor for bacterial production and microbial community respiration and organic carbon substrates to be a secondary limiting factor. Respiratory rate and bacterial secondary production increased when phosphate was added to water samples. Ammonium, iron and other trace metals, vitamins and chelators had no effect. Glucose was utilized only when supplemented with phosphate. Turnover time of bacterial biomass in June, based on counts, sizes, and production data, was 7 to 30 h, with the shortest times at oligotrophic stations. The observed rates of bacterial respiration and production imply the utilization of multiple sources of organic and recycled inorganic nutrients in a complex and inefficient food web Peer Reviewed 2019-06-12T09:11:38Z 2019-06-12T09:11:38Z 1995-02 2019-06-12T09:11:38Z artículo http://purl.org/coar/resource_type/c_6501 doi: 10.3354/meps117259 issn: 0171-8630 e-issn: 1616-1599 Marine Ecology Progress Series 117: 259-268 (1995) http://hdl.handle.net/10261/183844 10.3354/meps117259 Publisher's version https://doi.org/10.3354/meps117259 Sí open Inter Research
institution ICM ES
collection DSpace
country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-icm-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del ICM España
topic Communitiy respiration
Phosphate
Limiting factors
Gulf of Mexico
Bacterioplankton production
Communitiy respiration
Phosphate
Limiting factors
Gulf of Mexico
Bacterioplankton production
spellingShingle Communitiy respiration
Phosphate
Limiting factors
Gulf of Mexico
Bacterioplankton production
Communitiy respiration
Phosphate
Limiting factors
Gulf of Mexico
Bacterioplankton production
Pomeroy, Lawrence R.
Sheldon, Joan E.
Sheldon, Wade M.
Peters, Francesc
Limits to growth and respiration of bacterioplankton in the Gulf of Mexico.
description 10 pages, 2 figures, 5 tables
format artículo
topic_facet Communitiy respiration
Phosphate
Limiting factors
Gulf of Mexico
Bacterioplankton production
author Pomeroy, Lawrence R.
Sheldon, Joan E.
Sheldon, Wade M.
Peters, Francesc
author_facet Pomeroy, Lawrence R.
Sheldon, Joan E.
Sheldon, Wade M.
Peters, Francesc
author_sort Pomeroy, Lawrence R.
title Limits to growth and respiration of bacterioplankton in the Gulf of Mexico.
title_short Limits to growth and respiration of bacterioplankton in the Gulf of Mexico.
title_full Limits to growth and respiration of bacterioplankton in the Gulf of Mexico.
title_fullStr Limits to growth and respiration of bacterioplankton in the Gulf of Mexico.
title_full_unstemmed Limits to growth and respiration of bacterioplankton in the Gulf of Mexico.
title_sort limits to growth and respiration of bacterioplankton in the gulf of mexico.
publisher Inter Research
publishDate 1995-02
url http://hdl.handle.net/10261/183844
work_keys_str_mv AT pomeroylawrencer limitstogrowthandrespirationofbacterioplanktoninthegulfofmexico
AT sheldonjoane limitstogrowthandrespirationofbacterioplanktoninthegulfofmexico
AT sheldonwadem limitstogrowthandrespirationofbacterioplanktoninthegulfofmexico
AT petersfrancesc limitstogrowthandrespirationofbacterioplanktoninthegulfofmexico
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