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Morales, J. Cepeda; Vásquez, F.; Caicedo, J. P. Rivera; Banuelos, Christina; Diaz, Eliecer; Almeida, O. Hernandez

doi:10.15741/revbio.04.06.07

Cited by 1 publication

(2 citation statements)

References 16 publications

(34 reference statements)

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“…in 2011, which agrees with previous observations of the area (Cepeda-Morales et al 2017). The presence of the CC, which is characterized by high oxygen concentrations (Cepeda-Morales et al 2013), coincided with an increase in PP, POC, Chl, and K490 during the cold season from December to May (Collins et al 1997).…”

Section: Discussionsupporting

confidence: 90%

“…As oxygen and nutrients are essential for the growth of photosynthetic microorganisms that generate up to 90% of the Chl and biomass in the CMP (Cepeda-Morales et al 2009), the biological processes in the region may have been severely compromised during this intense and extended warm ENSO phase. The time lags between the variables considered in this study and the effects of El Niño events have been extensively studied, and the results of this study agree with the lag of fría en 2011, lo que concuerda con observaciones anteriores del área (Cepeda-Morales et al 2017). La presencia de la CC, que se caracteriza por altas concentraciones de oxígeno (Cepeda-Morales et al 2013), coincidió con un aumento de PP, COP, Cl y K490 durante la estación fría de diciembre a mayo (Collins et al 1997).…”

Section: Discussionsupporting

confidence: 79%

See 1 more Smart Citation

Temporal oceanographic variation using satellite imagery data in the central Mexican Pacific convergence zone

et al. 2023

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The oceanographic variation of the central Mexican Pacific (CMP) is mainly driven by the California Current and the Mexican Coastal Current, which generate a convergence zone. Little information is available regarding changes in oceanographic variables at the mesoscale level in the CMP. Therefore, this study characterized 6 oceanographic variables (sea surface temperature, chlorophyll concentration [Chl], primary productivity [PP], diffuse attenuation coefficient [K490], and particulate inorganic/organic carbon concentration [PIC, POC]) in the CMP from 2010 to 2017 and their relationships with El Niño/Southern Oscillation (ENSO). The variables were standardized to monthly pixel values of 0.08 latitude degrees, and the study area covered 48,846.48 km2. Friedman tests were used to compare the temporal variation in the variables, while Spearman correlations were used to evaluate the relationship between each variable and the Multivariate ENSO Index (MEI). A cross-correlation analysis was performed to determine the temporal lag between the oceanographic variables and the MEI. The cyclicity of the variation in the CMP was determined by spectral analysis. All variables showed significant differences between months and years. Two seasons defined by temperature were also detected: a cold season (December–June), in which high values of these variables were observed, and a warm season (July–November), in which low values of these variables were observed. No variables were correlated with the MEI; however, a 4-month time lag was identified between the variables and the MEI. The cyclicity of the variables corresponded to the cold and warm seasons. The cold phase of ENSO increased the values of PP, Chl, and K490 up to 4 times compared to those of other years. Taken together, the observed variation in oceanographic conditions makes the CMP one of the most dynamic coastal regions of the Mexican Pacific.

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Section: Discussionsupporting

confidence: 90%