Variability of marine biological productivity in the northeastern Pacific over the past millennium
In this study we present new data of biogenic opal (BO), organic carbon (OC), and calcium carbonate (CaCO3) in a highresolution record from the western coast of Baja California Sur, Mexico. The variability of marine biological productivity in this area is dominated by El Niño and La Niña events on...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Universidad Autónoma de Baja California
2015-03-01
|
| Series: | Ciencias Marinas |
| Online Access: | https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/2477 |
| _version_ | 1797279514924941312 |
|---|---|
| author | Miryam Juárez Alberto Sánchez Oscar González-Yajimovich |
| author_facet | Miryam Juárez Alberto Sánchez Oscar González-Yajimovich |
| author_sort | Miryam Juárez |
| collection | DOAJ |
| description |
In this study we present new data of biogenic opal (BO), organic carbon (OC), and calcium carbonate (CaCO3) in a highresolution record from the western coast of Baja California Sur, Mexico. The variability of marine biological productivity in this area is dominated by El Niño and La Niña events on different time scales. The BO and OC contents showed a decrease between AD 1100 and 1400. From AD 1400 to the present, BO and OC showed a significant increase, indicating permanent upwelling conditions. The CaCO3 content showed an inverse correlation with OC, which suggests that the exported OC fluxes are a significant factor controlling CaCO3 dissolution in the sediment. The increase in BO and OC was synchronic with a decline in the number of El Niño events (6 ± 4 every 100 years) over the last 600 years of the millennium.
|
| first_indexed | 2024-03-07T16:26:35Z |
| format | Article |
| id | doaj.art-69443be0ebcb4bd1a639e13b56631c76 |
| institution | Directory Open Access Journal |
| issn | 0185-3880 2395-9053 |
| language | English |
| last_indexed | 2024-03-07T16:26:35Z |
| publishDate | 2015-03-01 |
| publisher | Universidad Autónoma de Baja California |
| record_format | Article |
| series | Ciencias Marinas |
| spelling | doaj.art-69443be0ebcb4bd1a639e13b56631c762024-03-03T17:49:48ZengUniversidad Autónoma de Baja CaliforniaCiencias Marinas0185-38802395-90532015-03-0140410.7773/cm.v40i4.2477Variability of marine biological productivity in the northeastern Pacific over the past millenniumMiryam Juárez0Alberto Sánchez1Oscar González-Yajimovich2Centro Interdisciplinario de Ciencias MarinasCentro Interdisciplinario de Ciencias MarinasUniversidad Autónoma de Baja California In this study we present new data of biogenic opal (BO), organic carbon (OC), and calcium carbonate (CaCO3) in a highresolution record from the western coast of Baja California Sur, Mexico. The variability of marine biological productivity in this area is dominated by El Niño and La Niña events on different time scales. The BO and OC contents showed a decrease between AD 1100 and 1400. From AD 1400 to the present, BO and OC showed a significant increase, indicating permanent upwelling conditions. The CaCO3 content showed an inverse correlation with OC, which suggests that the exported OC fluxes are a significant factor controlling CaCO3 dissolution in the sediment. The increase in BO and OC was synchronic with a decline in the number of El Niño events (6 ± 4 every 100 years) over the last 600 years of the millennium. https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/2477 |
| spellingShingle | Miryam Juárez Alberto Sánchez Oscar González-Yajimovich Variability of marine biological productivity in the northeastern Pacific over the past millennium Ciencias Marinas |
| title | Variability of marine biological productivity in the northeastern Pacific over the past millennium |
| title_full | Variability of marine biological productivity in the northeastern Pacific over the past millennium |
| title_fullStr | Variability of marine biological productivity in the northeastern Pacific over the past millennium |
| title_full_unstemmed | Variability of marine biological productivity in the northeastern Pacific over the past millennium |
| title_short | Variability of marine biological productivity in the northeastern Pacific over the past millennium |
| title_sort | variability of marine biological productivity in the northeastern pacific over the past millennium |
| url | https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/2477 |
| work_keys_str_mv | AT miryamjuarez variabilityofmarinebiologicalproductivityinthenortheasternpacificoverthepastmillennium AT albertosanchez variabilityofmarinebiologicalproductivityinthenortheasternpacificoverthepastmillennium AT oscargonzalezyajimovich variabilityofmarinebiologicalproductivityinthenortheasternpacificoverthepastmillennium |