The carbonate system in coastal waters off the northern region of the Baja California Peninsula under La Niña conditions

In the North Pacific, variations in isopycnal depth influence the biogeochemical characteristics of the water column and the aragonite saturation horizon (ZΩa) during interannual events. The objective of this study was to assess the effect of the 2011 La Niña conditions on ZΩa in Todos Santos Bay (...

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Main Authors: Norma Oliva-Méndez, Francisco Delgadillo-Hinojosa, Paula Pérez-Brunius, Augusto Valencia-Gasti, Miguel A Huerta-Diaz, Eduardo Palacios-Coria, J Martín Hernández-Ayón
Format: Article
Language:English
Published: Universidad Autónoma de Baja California 2018-09-01
Series:Ciencias Marinas
Online Access:https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/2833
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author Norma Oliva-Méndez
Francisco Delgadillo-Hinojosa
Paula Pérez-Brunius
Augusto Valencia-Gasti
Miguel A Huerta-Diaz
Eduardo Palacios-Coria
J Martín Hernández-Ayón
author_facet Norma Oliva-Méndez
Francisco Delgadillo-Hinojosa
Paula Pérez-Brunius
Augusto Valencia-Gasti
Miguel A Huerta-Diaz
Eduardo Palacios-Coria
J Martín Hernández-Ayón
author_sort Norma Oliva-Méndez
collection DOAJ
description In the North Pacific, variations in isopycnal depth influence the biogeochemical characteristics of the water column and the aragonite saturation horizon (ZΩa) during interannual events. The objective of this study was to assess the effect of the 2011 La Niña conditions on ZΩa in Todos Santos Bay (Baja California, Mexico) and surrounding waters. The results showed that ZΩa variability was modulated by the intensity of interannual conditions and by the water masses that were present in the region. Subarctic Water predominated in the upper 200 m with anomalous characteristics, such as low temperature and low salinity. Also, isopycnals shoaled toward the coast and ZΩa was thus ~30 m in the nearshore area, in contrast with the oceanic region, where ZΩa was ~150 m. Prior to this study, there were no records of ZΩa in Todos Santos Bay, nor were there any records of its shallowness.
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spelling doaj.art-1320845225e94f2ab19b4f36f9dc05162024-03-03T17:38:19ZengUniversidad Autónoma de Baja CaliforniaCiencias Marinas0185-38802395-90532018-09-0144310.7773/cm.v44i3.2833The carbonate system in coastal waters off the northern region of the Baja California Peninsula under La Niña conditionsNorma Oliva-Méndez0Francisco Delgadillo-Hinojosa1Paula Pérez-Brunius2Augusto Valencia-Gasti3Miguel A Huerta-Diaz4Eduardo Palacios-Coria5J Martín Hernández-Ayón6Facultad de Ciencias Marinas. Universidad Autónoma de Baja California.Instituto de Investigaciones Oceanológicas. Universidad Autónoma de Baja California.Departamento de Oceanografía Biológica. Centro de Investigación Científica y de Educación Superior de Ensenada.Instituto de Investigaciones Oceanológicas. Universidad Autónoma de Baja California.Instituto de Investigaciones Oceanológicas. Universidad Autónoma de Baja California.Estación de Investigación Oceanográfica. Segunda Region Naval. Ensenada, BC.Instituto de Investigaciones Oceanológicas. Universidad Autónoma de Baja California. In the North Pacific, variations in isopycnal depth influence the biogeochemical characteristics of the water column and the aragonite saturation horizon (ZΩa) during interannual events. The objective of this study was to assess the effect of the 2011 La Niña conditions on ZΩa in Todos Santos Bay (Baja California, Mexico) and surrounding waters. The results showed that ZΩa variability was modulated by the intensity of interannual conditions and by the water masses that were present in the region. Subarctic Water predominated in the upper 200 m with anomalous characteristics, such as low temperature and low salinity. Also, isopycnals shoaled toward the coast and ZΩa was thus ~30 m in the nearshore area, in contrast with the oceanic region, where ZΩa was ~150 m. Prior to this study, there were no records of ZΩa in Todos Santos Bay, nor were there any records of its shallowness. https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/2833
spellingShingle Norma Oliva-Méndez
Francisco Delgadillo-Hinojosa
Paula Pérez-Brunius
Augusto Valencia-Gasti
Miguel A Huerta-Diaz
Eduardo Palacios-Coria
J Martín Hernández-Ayón
The carbonate system in coastal waters off the northern region of the Baja California Peninsula under La Niña conditions
Ciencias Marinas
title The carbonate system in coastal waters off the northern region of the Baja California Peninsula under La Niña conditions
title_full The carbonate system in coastal waters off the northern region of the Baja California Peninsula under La Niña conditions
title_fullStr The carbonate system in coastal waters off the northern region of the Baja California Peninsula under La Niña conditions
title_full_unstemmed The carbonate system in coastal waters off the northern region of the Baja California Peninsula under La Niña conditions
title_short The carbonate system in coastal waters off the northern region of the Baja California Peninsula under La Niña conditions
title_sort carbonate system in coastal waters off the northern region of the baja california peninsula under la nina conditions
url https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/2833
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