Biomasa y distribución espacial del bacterioplancton en el sector norte de la plataforma continental argentina (34º S-41º S)
The northern sector of the Argentine continental shelf (34º S-41º S) is a highly productive area that sustains important fishery resources like Argentine anchovy (Engraulis anchoita) and is characterized by the presence of frontal zones with retention of detritus and plankton. In marine environments the bacterioplankton represents one of the main components of the trophic nets and plays a key role in biogeochemical cycles. In this ecosystem biomass and bacterioplankton distribution as well as their relation to environmental variables were analyzed. The highest chlorophyll a values, not significantly related to bacterioplankton (p > 0.05), were found in frontal and coastal areas. Abundance, bacterial biomass and cell volume values ranged 0.48-5.42 x 106 cells ml-1, 2-120.5 mg C l-1 and 0.004-0.156 um<sup>3</sup>. The General Linear Model applied showed the influence environmental parameters have on total bacteria. The maximum concentrations were found in frontal regions where high densities of Argentine anchovy eggs and larvae were reported in Spring, which demonstrates the importance bacterioplankton has in that productive area.
Main Authors: | , , , , |
---|---|
Format: | Journal Contribution biblioteca |
Language: | Spanish / Castilian |
Published: |
2013
|
Subjects: | Picoplankton, Bacteria, Biomass, Fronts, Coastal zone, Abundance, Environmental factors, Geographical distribution, |
Online Access: | http://hdl.handle.net/1834/5498 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
id |
dig-aquadocs-1834-5498 |
---|---|
record_format |
koha |
spelling |
dig-aquadocs-1834-54982021-05-19T06:23:52Z Biomasa y distribución espacial del bacterioplancton en el sector norte de la plataforma continental argentina (34º S-41º S) Biomass and bacterioplankton spatial distribution in the northern sector of the Argentine continental shelf (34º S-41º S) Hozbor, M.C. Hernández, D.R. Cucchi Colleoni, A.D. Costagliola, M.C. Peressutti, S.R. Picoplankton Bacteria Biomass Fronts Coastal zone Abundance Environmental factors Geographical distribution The northern sector of the Argentine continental shelf (34º S-41º S) is a highly productive area that sustains important fishery resources like Argentine anchovy (Engraulis anchoita) and is characterized by the presence of frontal zones with retention of detritus and plankton. In marine environments the bacterioplankton represents one of the main components of the trophic nets and plays a key role in biogeochemical cycles. In this ecosystem biomass and bacterioplankton distribution as well as their relation to environmental variables were analyzed. The highest chlorophyll a values, not significantly related to bacterioplankton (p > 0.05), were found in frontal and coastal areas. Abundance, bacterial biomass and cell volume values ranged 0.48-5.42 x 106 cells ml-1, 2-120.5 mg C l-1 and 0.004-0.156 um<sup>3</sup>. The General Linear Model applied showed the influence environmental parameters have on total bacteria. The maximum concentrations were found in frontal regions where high densities of Argentine anchovy eggs and larvae were reported in Spring, which demonstrates the importance bacterioplankton has in that productive area. El sector norte de la plataforma continental argentina (34º S-41º S) es un área altamente productiva donde se sustentan importantes recursos pesqueros como la anchoíta (Engraulis anchoita) y que se caracteriza por la presencia de zonas frontales con retención de detritos y plancton. En los ambientes marinos el bacterioplancton representa uno de los principales componentes de las redes tróficas y juega un rol clave en los ciclos biogeoquímicos. En este ecosistema se analizó la biomasa y distribución del bacterioplancton, así como su relación con las principales variables ambientales. Los mayores valores de clorofila a, que no se relacionaron significativamente con el bacterioplancton (p > 0,05), se encontraron en las áreas frontales y costeras. Los valores de abundancia, biomasa bacteriana y volumen celular oscilaron entre 0,48-5,42 x 106 cél. Ml-1; 2-120,5 mg C l-1 y 0,004-0,156 um<sup>3</sup>, respectivamente. La aplicación del Modelo Lineal General demostró la influencia de los parámetros ambientales sobre las bacterias totales. Las concentraciones máximas se hallaron en las regiones frontales, donde se reportaron altas densidades de huevos y larvas de anchoíta durante los meses de primavera, lo que demuestra la importancia que reviste el bacterioplancton en esa área productiva. Published Engraulidae Engraulis anchoita anchoíta picoplancton bacterias biomasa frentes zona costera abundancia factores ambientales distribución geográfica 2014-06-11T17:06:05Z 2014-06-11T17:06:05Z 2013 Journal Contribution Refereed Article Revista de Investigación y Desarrollo Pesquero, 23, p. 145-160 0325-6375 http://hdl.handle.net/1834/5498 es http://creativecommons.org/licenses/by-nc/3.0/ Atlántico Sudoccidental Argentina Buenos Aires Uruguay |
institution |
UNESCO |
collection |
DSpace |
country |
Francia |
countrycode |
FR |
component |
Bibliográfico |
access |
En linea |
databasecode |
dig-aquadocs |
tag |
biblioteca |
region |
Europa del Oeste |
libraryname |
Repositorio AQUADOCS |
language |
Spanish / Castilian |
topic |
Picoplankton Bacteria Biomass Fronts Coastal zone Abundance Environmental factors Geographical distribution Picoplankton Bacteria Biomass Fronts Coastal zone Abundance Environmental factors Geographical distribution |
spellingShingle |
Picoplankton Bacteria Biomass Fronts Coastal zone Abundance Environmental factors Geographical distribution Picoplankton Bacteria Biomass Fronts Coastal zone Abundance Environmental factors Geographical distribution Hozbor, M.C. Hernández, D.R. Cucchi Colleoni, A.D. Costagliola, M.C. Peressutti, S.R. Biomasa y distribución espacial del bacterioplancton en el sector norte de la plataforma continental argentina (34º S-41º S) |
description |
The northern sector of the Argentine continental shelf (34º S-41º S) is a highly productive area that sustains important fishery resources like Argentine anchovy (Engraulis anchoita) and is characterized by the presence of frontal zones with retention of detritus and plankton. In marine environments the bacterioplankton represents one of the main components of the trophic nets and plays a key role in biogeochemical cycles. In this ecosystem biomass and bacterioplankton distribution as well as their relation to environmental variables were analyzed. The highest chlorophyll a values, not significantly related to bacterioplankton (p > 0.05), were found in frontal and coastal areas. Abundance, bacterial biomass and cell volume values ranged 0.48-5.42 x 106 cells ml-1, 2-120.5 mg C l-1 and 0.004-0.156 um<sup>3</sup>. The General Linear Model applied showed the influence environmental parameters have on total bacteria. The maximum concentrations were found in frontal regions where high densities of Argentine anchovy eggs and larvae were reported in Spring, which demonstrates the importance bacterioplankton has in that productive area. |
format |
Journal Contribution |
topic_facet |
Picoplankton Bacteria Biomass Fronts Coastal zone Abundance Environmental factors Geographical distribution |
author |
Hozbor, M.C. Hernández, D.R. Cucchi Colleoni, A.D. Costagliola, M.C. Peressutti, S.R. |
author_facet |
Hozbor, M.C. Hernández, D.R. Cucchi Colleoni, A.D. Costagliola, M.C. Peressutti, S.R. |
author_sort |
Hozbor, M.C. |
title |
Biomasa y distribución espacial del bacterioplancton en el sector norte de la plataforma continental argentina (34º S-41º S) |
title_short |
Biomasa y distribución espacial del bacterioplancton en el sector norte de la plataforma continental argentina (34º S-41º S) |
title_full |
Biomasa y distribución espacial del bacterioplancton en el sector norte de la plataforma continental argentina (34º S-41º S) |
title_fullStr |
Biomasa y distribución espacial del bacterioplancton en el sector norte de la plataforma continental argentina (34º S-41º S) |
title_full_unstemmed |
Biomasa y distribución espacial del bacterioplancton en el sector norte de la plataforma continental argentina (34º S-41º S) |
title_sort |
biomasa y distribución espacial del bacterioplancton en el sector norte de la plataforma continental argentina (34º s-41º s) |
publishDate |
2013 |
url |
http://hdl.handle.net/1834/5498 |
work_keys_str_mv |
AT hozbormc biomasaydistribucionespacialdelbacterioplanctonenelsectornortedelaplataformacontinentalargentina34os41os AT hernandezdr biomasaydistribucionespacialdelbacterioplanctonenelsectornortedelaplataformacontinentalargentina34os41os AT cucchicolleoniad biomasaydistribucionespacialdelbacterioplanctonenelsectornortedelaplataformacontinentalargentina34os41os AT costagliolamc biomasaydistribucionespacialdelbacterioplanctonenelsectornortedelaplataformacontinentalargentina34os41os AT peressuttisr biomasaydistribucionespacialdelbacterioplanctonenelsectornortedelaplataformacontinentalargentina34os41os AT hozbormc biomassandbacterioplanktonspatialdistributioninthenorthernsectoroftheargentinecontinentalshelf34os41os AT hernandezdr biomassandbacterioplanktonspatialdistributioninthenorthernsectoroftheargentinecontinentalshelf34os41os AT cucchicolleoniad biomassandbacterioplanktonspatialdistributioninthenorthernsectoroftheargentinecontinentalshelf34os41os AT costagliolamc biomassandbacterioplanktonspatialdistributioninthenorthernsectoroftheargentinecontinentalshelf34os41os AT peressuttisr biomassandbacterioplanktonspatialdistributioninthenorthernsectoroftheargentinecontinentalshelf34os41os |
_version_ |
1756075434260299776 |