Phytoplankton Ecology During a Spring-Neap Tidal Cycle in the Southern Tidal Front of San Jorge Gulf, Patagonia

Tidal fronts are interfaces that separate stratified from mixed waters. The stratified surface zone of a front has lower inorganic nutrient concentrations than the mixed side, and thus, phytoplankton assemblages are expected to differ from one side of the front to the other. Here, we characterize th...

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Detalles Bibliográficos
Autores principales: Flores Melo, Elizabeth Ximena, Schloss, Irene Ruth, Chavanne, Cédric, Almandoz, Gastón Osvaldo, Latorre, Maite Pilmayquen, Ferreyra, Gustavo Adolfo
Formato: Articulo
Lenguaje:Inglés
Publicado: 2018
Materias:
Ciencias Naturales
Argentine sea, San Jorge Gulf
Frontal areas
Phytoplankton
Stratification
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/100730
https://ri.conicet.gov.ar/11336/92119
https://tos.org/oceanography/article/phytoplankton-ecology-during-a-spring-neap-tidal-cycle-in-the-southern-tida
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-100730
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Argentine sea, San Jorge Gulf
Frontal areas
Phytoplankton
Stratification
spellingShingle Ciencias Naturales
Argentine sea, San Jorge Gulf
Frontal areas
Phytoplankton
Stratification
Flores Melo, Elizabeth Ximena
Schloss, Irene Ruth
Chavanne, Cédric
Almandoz, Gastón Osvaldo
Latorre, Maite Pilmayquen
Ferreyra, Gustavo Adolfo
Phytoplankton Ecology During a Spring-Neap Tidal Cycle in the Southern Tidal Front of San Jorge Gulf, Patagonia
topic_facet Ciencias Naturales
Argentine sea, San Jorge Gulf
Frontal areas
Phytoplankton
Stratification
description Tidal fronts are interfaces that separate stratified from mixed waters. The stratified surface zone of a front has lower inorganic nutrient concentrations than the mixed side, and thus, phytoplankton assemblages are expected to differ from one side of the front to the other. Here, we characterize the physics, nutrient dynamics, and biology of the southern front in San Jorge Gulf (SJG), Argentina, during a spring-neap tidal cycle. Baroclinic instabilities influence the shape and position of the front and presumably play an important role in the horizontal transport across the front. The highest phytoplankton biomass concentrations were found in the waters of the stratified side of the front during neap tide, with picophytoplankton, cyanobacteria, and nanophyto-plankton being the main contributors to the total autotrophic biomass. Bacteria contribute the most to heterotrophic biomass. In contrast, during spring tide, the carbon contribution of microphytoplankton was higher than during neap tide. In the mixed side, cells photoacclimate to optimum light conditions, suggesting that cells near the surface, which are probably photoinhibited, and cells below the euphotic zone, which are light-limited, are quickly advected by turbulent vertical motions to depths with optimal irradiance conditions.
format Articulo
Articulo
author Flores Melo, Elizabeth Ximena
Schloss, Irene Ruth
Chavanne, Cédric
Almandoz, Gastón Osvaldo
Latorre, Maite Pilmayquen
Ferreyra, Gustavo Adolfo
author_facet Flores Melo, Elizabeth Ximena
Schloss, Irene Ruth
Chavanne, Cédric
Almandoz, Gastón Osvaldo
Latorre, Maite Pilmayquen
Ferreyra, Gustavo Adolfo
author_sort Flores Melo, Elizabeth Ximena
title Phytoplankton Ecology During a Spring-Neap Tidal Cycle in the Southern Tidal Front of San Jorge Gulf, Patagonia
title_short Phytoplankton Ecology During a Spring-Neap Tidal Cycle in the Southern Tidal Front of San Jorge Gulf, Patagonia
title_full Phytoplankton Ecology During a Spring-Neap Tidal Cycle in the Southern Tidal Front of San Jorge Gulf, Patagonia
title_fullStr Phytoplankton Ecology During a Spring-Neap Tidal Cycle in the Southern Tidal Front of San Jorge Gulf, Patagonia
title_full_unstemmed Phytoplankton Ecology During a Spring-Neap Tidal Cycle in the Southern Tidal Front of San Jorge Gulf, Patagonia
title_sort phytoplankton ecology during a spring-neap tidal cycle in the southern tidal front of san jorge gulf, patagonia
publishDate 2018
url http://sedici.unlp.edu.ar/handle/10915/100730
https://ri.conicet.gov.ar/11336/92119
https://tos.org/oceanography/article/phytoplankton-ecology-during-a-spring-neap-tidal-cycle-in-the-southern-tida
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