Mesozooplankton structure and seasonal dynamics in three coastal systems of Argentina: Bahía Blanca Estuary, Pirámide Bay, and Ushuaia Bay

Mesozooplankton communities in coastal ecosystems have successfully adapted to a wide range of environments. However, the current rate of coastal modification is challenging the survival of resident species. In this chapter, we describe the structure and annual dynamics of the mesozooplankton commun...

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Detalles Bibliográficos
Publicado: 2018
Materias:
Anthropogenic impact
Bay
Copepods
Estuary
Mero-holoplankton
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_97833197_v_n_p327_Berasategui
http://hdl.handle.net/20.500.12110/paper_97833197_v_n_p327_Berasategui
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_97833197_v_n_p327_Berasategui
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spelling paper:paper_97833197_v_n_p327_Berasategui2023-06-08T16:38:54Z Mesozooplankton structure and seasonal dynamics in three coastal systems of Argentina: Bahía Blanca Estuary, Pirámide Bay, and Ushuaia Bay Anthropogenic impact Bay Copepods Estuary Mero-holoplankton Mesozooplankton communities in coastal ecosystems have successfully adapted to a wide range of environments. However, the current rate of coastal modification is challenging the survival of resident species. In this chapter, we describe the structure and annual dynamics of the mesozooplankton community in recent years for three coastal systems in Argentina that are subject to human disturbance: (1) Bahía Blanca Estuary, (2) Pirámide Bay in Nuevo Gulf and (3) Ushuaia Bay in the Beagle Channel. The seasonal dynamics of mesozooplankton abundance in Bahía Blanca Estuary during 2009-2010 exhibited a unimodal pattern with an increase during the warm seasons, while organism abundance increased linearly with both salinity and turbidity. In Nuevo Gulf, research on the seasonal dynamics of mesozooplankton conducted during 2014-2015 exhibited a bimodal abundance pattern with peaks in late summer and spring. No significant relationships between mesozooplankton and the environmental variables included in Nuevo Gulf were found. The seasonal dynamics of mesozooplankton in Ushuaia Bay in the years 2006-2008 exhibited a bimodal abundance pattern with peaks in summer and early autumn; this pattern was mainly driven by the concentration of chlorophyll a. In Bahía Blanca Estuary, a gradual decrease in species richness was observed throughout the last four decades, while changes in species composition were also observed, suggesting that some species have the ability to acclimate to higher salinity and turbidity as well as to pollution. In Nuevo Gulf, the mesozooplankton community showed no significant modifications over time, which may be related to the low anthropogenic pressure. Although no profound shifts in mesozooplankton were observed in Ushuaia Bay, eutrophication may have an impact in the future through its effect on primary producers. © Springer International Publishing AG, part of Springer Nature 2018. All rights reserved. 2018 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_97833197_v_n_p327_Berasategui http://hdl.handle.net/20.500.12110/paper_97833197_v_n_p327_Berasategui
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Anthropogenic impact
Bay
Copepods
Estuary
Mero-holoplankton
spellingShingle Anthropogenic impact
Bay
Copepods
Estuary
Mero-holoplankton
Mesozooplankton structure and seasonal dynamics in three coastal systems of Argentina: Bahía Blanca Estuary, Pirámide Bay, and Ushuaia Bay
topic_facet Anthropogenic impact
Bay
Copepods
Estuary
Mero-holoplankton
description Mesozooplankton communities in coastal ecosystems have successfully adapted to a wide range of environments. However, the current rate of coastal modification is challenging the survival of resident species. In this chapter, we describe the structure and annual dynamics of the mesozooplankton community in recent years for three coastal systems in Argentina that are subject to human disturbance: (1) Bahía Blanca Estuary, (2) Pirámide Bay in Nuevo Gulf and (3) Ushuaia Bay in the Beagle Channel. The seasonal dynamics of mesozooplankton abundance in Bahía Blanca Estuary during 2009-2010 exhibited a unimodal pattern with an increase during the warm seasons, while organism abundance increased linearly with both salinity and turbidity. In Nuevo Gulf, research on the seasonal dynamics of mesozooplankton conducted during 2014-2015 exhibited a bimodal abundance pattern with peaks in late summer and spring. No significant relationships between mesozooplankton and the environmental variables included in Nuevo Gulf were found. The seasonal dynamics of mesozooplankton in Ushuaia Bay in the years 2006-2008 exhibited a bimodal abundance pattern with peaks in summer and early autumn; this pattern was mainly driven by the concentration of chlorophyll a. In Bahía Blanca Estuary, a gradual decrease in species richness was observed throughout the last four decades, while changes in species composition were also observed, suggesting that some species have the ability to acclimate to higher salinity and turbidity as well as to pollution. In Nuevo Gulf, the mesozooplankton community showed no significant modifications over time, which may be related to the low anthropogenic pressure. Although no profound shifts in mesozooplankton were observed in Ushuaia Bay, eutrophication may have an impact in the future through its effect on primary producers. © Springer International Publishing AG, part of Springer Nature 2018. All rights reserved.
title Mesozooplankton structure and seasonal dynamics in three coastal systems of Argentina: Bahía Blanca Estuary, Pirámide Bay, and Ushuaia Bay
title_short Mesozooplankton structure and seasonal dynamics in three coastal systems of Argentina: Bahía Blanca Estuary, Pirámide Bay, and Ushuaia Bay
title_full Mesozooplankton structure and seasonal dynamics in three coastal systems of Argentina: Bahía Blanca Estuary, Pirámide Bay, and Ushuaia Bay
title_fullStr Mesozooplankton structure and seasonal dynamics in three coastal systems of Argentina: Bahía Blanca Estuary, Pirámide Bay, and Ushuaia Bay
title_full_unstemmed Mesozooplankton structure and seasonal dynamics in three coastal systems of Argentina: Bahía Blanca Estuary, Pirámide Bay, and Ushuaia Bay
title_sort mesozooplankton structure and seasonal dynamics in three coastal systems of argentina: bahía blanca estuary, pirámide bay, and ushuaia bay
publishDate 2018
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_97833197_v_n_p327_Berasategui
http://hdl.handle.net/20.500.12110/paper_97833197_v_n_p327_Berasategui
_version_ 1769175802627227648

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