Effects of the interannual variability of water column stratification on phytoplankton production and biomass in the northern zone off Baja California
The ocean off the Baja California Peninsula (Mexico) has been affected by interannual processes. Some of these processes have produced changes in oceanic circulation and the atmosphere, which have been reflected in the structure of the water column. Stratification, defined as the amount of energy ne...
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Universidad Autónoma de Baja California
2017
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ftdoajarticles:oai:doaj.org/article:4677afdbca91410dbf43f2be2dfdfdbb 2024-09-15T18:38:03+00:00 Effects of the interannual variability of water column stratification on phytoplankton production and biomass in the northern zone off Baja California Eliana Gómez-Ocampo Reginaldo Durazo Gilberto Gaxiola-Castro Martin De la Cruz-Orozco Ramón Sosa-Ávalos 2017-06-01T00:00:00Z https://doi.org/10.7773/cm.v43i2.2759 https://doaj.org/article/4677afdbca91410dbf43f2be2dfdfdbb EN ES eng spa Universidad Autónoma de Baja California https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/2759 https://doaj.org/toc/0185-3880 https://doaj.org/toc/2395-9053 doi:10.7773/cm.v43i2.2759 0185-3880 2395-9053 https://doaj.org/article/4677afdbca91410dbf43f2be2dfdfdbb Ciencias Marinas, Vol 43, Iss 2 (2017) Biology (General) QH301-705.5 article 2017 ftdoajarticles https://doi.org/10.7773/cm.v43i2.2759 2024-08-05T17:49:54Z The ocean off the Baja California Peninsula (Mexico) has been affected by interannual processes. Some of these processes have produced changes in oceanic circulation and the atmosphere, which have been reflected in the structure of the water column. Stratification, defined as the amount of energy needed to mix water throughout the water column, determines nutrient availability in the euphotic zone for phytoplankton growth. The aim of this study is to describe and relate the interannual variations of phytoplankton production and biomass with changes in the structure of the water column. To this end, we analyzed time series (1997–2016) for integrated Chlorophyll a, integrated primary production, pycnocline depth, mixed layer depth, and stratification indices along line 100 of the Investigaciones Mexicanas de la Corriente de California (IMECOCAL) program. The results showed 2 periods of high stratification and a decrease in phytoplankton production and biomass off Baja California, corresponding to the intrusion of subarctic water and El Niño 2015–2016. Finally, by using generalized additive models, we related 2 photosynthethic parameters-maximum photosynthetic rate and maximum light utilization coefficient-with water stratification. These relationships explained interannual variations in phytoplankton production in terms of water column stratification. The time series and the analysis reported here for IMECOCAL line 100 could be used to extrapolate the effects of interannual physical processes on phytoplankton in other zones off the Baja California peninsula. Article in Journal/Newspaper Subarctic Directory of Open Access Journals: DOAJ Articles Ciencias Marinas 43 2 109 122 |
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Biology (General) QH301-705.5 |
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Biology (General) QH301-705.5 Eliana Gómez-Ocampo Reginaldo Durazo Gilberto Gaxiola-Castro Martin De la Cruz-Orozco Ramón Sosa-Ávalos Effects of the interannual variability of water column stratification on phytoplankton production and biomass in the northern zone off Baja California |
topic_facet |
Biology (General) QH301-705.5 |
description |
The ocean off the Baja California Peninsula (Mexico) has been affected by interannual processes. Some of these processes have produced changes in oceanic circulation and the atmosphere, which have been reflected in the structure of the water column. Stratification, defined as the amount of energy needed to mix water throughout the water column, determines nutrient availability in the euphotic zone for phytoplankton growth. The aim of this study is to describe and relate the interannual variations of phytoplankton production and biomass with changes in the structure of the water column. To this end, we analyzed time series (1997–2016) for integrated Chlorophyll a, integrated primary production, pycnocline depth, mixed layer depth, and stratification indices along line 100 of the Investigaciones Mexicanas de la Corriente de California (IMECOCAL) program. The results showed 2 periods of high stratification and a decrease in phytoplankton production and biomass off Baja California, corresponding to the intrusion of subarctic water and El Niño 2015–2016. Finally, by using generalized additive models, we related 2 photosynthethic parameters-maximum photosynthetic rate and maximum light utilization coefficient-with water stratification. These relationships explained interannual variations in phytoplankton production in terms of water column stratification. The time series and the analysis reported here for IMECOCAL line 100 could be used to extrapolate the effects of interannual physical processes on phytoplankton in other zones off the Baja California peninsula. |
format |
Article in Journal/Newspaper |
author |
Eliana Gómez-Ocampo Reginaldo Durazo Gilberto Gaxiola-Castro Martin De la Cruz-Orozco Ramón Sosa-Ávalos |
author_facet |
Eliana Gómez-Ocampo Reginaldo Durazo Gilberto Gaxiola-Castro Martin De la Cruz-Orozco Ramón Sosa-Ávalos |
author_sort |
Eliana Gómez-Ocampo |
title |
Effects of the interannual variability of water column stratification on phytoplankton production and biomass in the northern zone off Baja California |
title_short |
Effects of the interannual variability of water column stratification on phytoplankton production and biomass in the northern zone off Baja California |
title_full |
Effects of the interannual variability of water column stratification on phytoplankton production and biomass in the northern zone off Baja California |
title_fullStr |
Effects of the interannual variability of water column stratification on phytoplankton production and biomass in the northern zone off Baja California |
title_full_unstemmed |
Effects of the interannual variability of water column stratification on phytoplankton production and biomass in the northern zone off Baja California |
title_sort |
effects of the interannual variability of water column stratification on phytoplankton production and biomass in the northern zone off baja california |
publisher |
Universidad Autónoma de Baja California |
publishDate |
2017 |
url |
https://doi.org/10.7773/cm.v43i2.2759 https://doaj.org/article/4677afdbca91410dbf43f2be2dfdfdbb |
genre |
Subarctic |
genre_facet |
Subarctic |
op_source |
Ciencias Marinas, Vol 43, Iss 2 (2017) |
op_relation |
https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/2759 https://doaj.org/toc/0185-3880 https://doaj.org/toc/2395-9053 doi:10.7773/cm.v43i2.2759 0185-3880 2395-9053 https://doaj.org/article/4677afdbca91410dbf43f2be2dfdfdbb |
op_doi |
https://doi.org/10.7773/cm.v43i2.2759 |
container_title |
Ciencias Marinas |
container_volume |
43 |
container_issue |
2 |
container_start_page |
109 |
op_container_end_page |
122 |
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1810482383097430016 |