The distribution of nutrients, dissolved oxygen and chlorophyll a in the upper Gulf of Nicoya, Costa Rica, a tropical estuary
in the Gulf of Nicoya on the Pacific Coast of Costa Rica, nutrient rich equatorial subsurface water (ESW) is upwelled in much of the lower gulf. These offshore waters are often regarded as the major source of nutrients to the gulf. However, for most of the year, the ESW has little influence on the n...
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Universidad de Costa Rica
2007
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ftdoajarticles:oai:doaj.org/article:2cee9e2caaf2414b9f6d0b5e49cf6a0f 2024-09-15T18:18:05+00:00 The distribution of nutrients, dissolved oxygen and chlorophyll a in the upper Gulf of Nicoya, Costa Rica, a tropical estuary Jaime Palter Sandra León Coto Daniel Ballestero 2007-06-01T00:00:00Z https://doaj.org/article/2cee9e2caaf2414b9f6d0b5e49cf6a0f EN ES eng spa Universidad de Costa Rica http://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S0034-77442007000200008 https://doaj.org/toc/0034-7744 https://doaj.org/toc/2215-2075 0034-7744 2215-2075 https://doaj.org/article/2cee9e2caaf2414b9f6d0b5e49cf6a0f Revista de Biología Tropical, Vol 55, Iss 2, Pp 427-436 (2007) estuario tropical nutrientes oxígeno disuelto Costa Rica Golfo de Nicoya tropical estuary nutrients dissolved oxygen Gulf of Nicoya Biology (General) QH301-705.5 article 2007 ftdoajarticles 2024-08-05T17:50:10Z in the Gulf of Nicoya on the Pacific Coast of Costa Rica, nutrient rich equatorial subsurface water (ESW) is upwelled in much of the lower gulf. These offshore waters are often regarded as the major source of nutrients to the gulf. However, for most of the year, the ESW has little influence on the nutrient content of the upper gulf, which has a distinct character from the lower gulf. The upper gulf, extending 40 km north of the restriction between Puntarenas Peninsula and San Lucas island, is bordered primarily by mangrove swamps, is less than 20 m deep, and is less saline than the lower gulf. We surveyed the upper gulf for dissolved inorganic nitrogen, phosphate, silicate, dissolved oxygen, and chlorophyll in November 2000, January and July 2001. All nutrients are more concentrated in the upper gulf during the rainy and transitional seasons than the dry season, significantly so for phosphate and silicate. Throughout the year, nutrients tend to be much more concentrated in the less saline water of the upper gulf. This trend indicates that discharge from the Tempisque River predominantly controls spatial and temporal nutrient variability in the upper gulf. However, nutrient rich ESW, upwelled offshore and mixed to form a mid-temperature intermediate water, may enter the inner gulf to provide an important secondary source of nutrients during the dry season. Rev. Biol. Trop. 55 (2): 427-436. Epub 2007 June, 29. Las aguas subsuperficiales ecuatoriales (ESW) que entran por la parte externa del Golfo de Nicoya de Costa Rica, se consideran una fuente importante de nutrientes para el estuario. Sin embargo, durante la mayoría del año las ESW tiene una influencia pequeña en la parte interna del golfo, que es oceanográfica y biológicamente diferente de la parte externa. La parte interna está ubicada desde la península de Puntarenas hasta la boca del Río Tempisque, 40 km al norte; es un área que se caracteriza por un importante aporte de agua dulce, está rodeada de manglares y tiene menos de 20 m de profundidad. En este ... Article in Journal/Newspaper Lucas Island Directory of Open Access Journals: DOAJ Articles |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
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language |
English Spanish |
topic |
estuario tropical nutrientes oxígeno disuelto Costa Rica Golfo de Nicoya tropical estuary nutrients dissolved oxygen Gulf of Nicoya Biology (General) QH301-705.5 |
spellingShingle |
estuario tropical nutrientes oxígeno disuelto Costa Rica Golfo de Nicoya tropical estuary nutrients dissolved oxygen Gulf of Nicoya Biology (General) QH301-705.5 Jaime Palter Sandra León Coto Daniel Ballestero The distribution of nutrients, dissolved oxygen and chlorophyll a in the upper Gulf of Nicoya, Costa Rica, a tropical estuary |
topic_facet |
estuario tropical nutrientes oxígeno disuelto Costa Rica Golfo de Nicoya tropical estuary nutrients dissolved oxygen Gulf of Nicoya Biology (General) QH301-705.5 |
description |
in the Gulf of Nicoya on the Pacific Coast of Costa Rica, nutrient rich equatorial subsurface water (ESW) is upwelled in much of the lower gulf. These offshore waters are often regarded as the major source of nutrients to the gulf. However, for most of the year, the ESW has little influence on the nutrient content of the upper gulf, which has a distinct character from the lower gulf. The upper gulf, extending 40 km north of the restriction between Puntarenas Peninsula and San Lucas island, is bordered primarily by mangrove swamps, is less than 20 m deep, and is less saline than the lower gulf. We surveyed the upper gulf for dissolved inorganic nitrogen, phosphate, silicate, dissolved oxygen, and chlorophyll in November 2000, January and July 2001. All nutrients are more concentrated in the upper gulf during the rainy and transitional seasons than the dry season, significantly so for phosphate and silicate. Throughout the year, nutrients tend to be much more concentrated in the less saline water of the upper gulf. This trend indicates that discharge from the Tempisque River predominantly controls spatial and temporal nutrient variability in the upper gulf. However, nutrient rich ESW, upwelled offshore and mixed to form a mid-temperature intermediate water, may enter the inner gulf to provide an important secondary source of nutrients during the dry season. Rev. Biol. Trop. 55 (2): 427-436. Epub 2007 June, 29. Las aguas subsuperficiales ecuatoriales (ESW) que entran por la parte externa del Golfo de Nicoya de Costa Rica, se consideran una fuente importante de nutrientes para el estuario. Sin embargo, durante la mayoría del año las ESW tiene una influencia pequeña en la parte interna del golfo, que es oceanográfica y biológicamente diferente de la parte externa. La parte interna está ubicada desde la península de Puntarenas hasta la boca del Río Tempisque, 40 km al norte; es un área que se caracteriza por un importante aporte de agua dulce, está rodeada de manglares y tiene menos de 20 m de profundidad. En este ... |
format |
Article in Journal/Newspaper |
author |
Jaime Palter Sandra León Coto Daniel Ballestero |
author_facet |
Jaime Palter Sandra León Coto Daniel Ballestero |
author_sort |
Jaime Palter |
title |
The distribution of nutrients, dissolved oxygen and chlorophyll a in the upper Gulf of Nicoya, Costa Rica, a tropical estuary |
title_short |
The distribution of nutrients, dissolved oxygen and chlorophyll a in the upper Gulf of Nicoya, Costa Rica, a tropical estuary |
title_full |
The distribution of nutrients, dissolved oxygen and chlorophyll a in the upper Gulf of Nicoya, Costa Rica, a tropical estuary |
title_fullStr |
The distribution of nutrients, dissolved oxygen and chlorophyll a in the upper Gulf of Nicoya, Costa Rica, a tropical estuary |
title_full_unstemmed |
The distribution of nutrients, dissolved oxygen and chlorophyll a in the upper Gulf of Nicoya, Costa Rica, a tropical estuary |
title_sort |
distribution of nutrients, dissolved oxygen and chlorophyll a in the upper gulf of nicoya, costa rica, a tropical estuary |
publisher |
Universidad de Costa Rica |
publishDate |
2007 |
url |
https://doaj.org/article/2cee9e2caaf2414b9f6d0b5e49cf6a0f |
genre |
Lucas Island |
genre_facet |
Lucas Island |
op_source |
Revista de Biología Tropical, Vol 55, Iss 2, Pp 427-436 (2007) |
op_relation |
http://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S0034-77442007000200008 https://doaj.org/toc/0034-7744 https://doaj.org/toc/2215-2075 0034-7744 2215-2075 https://doaj.org/article/2cee9e2caaf2414b9f6d0b5e49cf6a0f |
_version_ |
1810456222896226304 |