Phytoplankton primary productivity in the euphotic zone of the California Current System estimated from CZCS imagery
We estimated phytoplankton primary productivity (PP) in the euphotic zone of the California Current System using chlorophyll concentration (Chl) from CZCS imagery. The area was divided into two regions, Southern California (SC) and Baja California (BC), with inshore and offshore subregions, and into...
Ausführliche Beschreibung
Autor*in: |
OA Barocio-León [verfasserIn] R Millán-Núñez [verfasserIn] E Santamaría-del-Ángel [verfasserIn] A González-Silvera [verfasserIn] |
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Format: |
E-Artikel |
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Sprache: |
Englisch ; Spanisch |
Erschienen: |
2007 |
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Schlagwörter: |
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Übergeordnetes Werk: |
In: Ciencias Marinas - Universidad Autónoma de Baja California, 2006, 33(2007), 1 |
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Übergeordnetes Werk: |
volume:33 ; year:2007 ; number:1 |
Links: |
Link aufrufen |
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DOI / URN: |
10.7773/cm.v33i1.1037 |
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Katalog-ID: |
DOAJ097076813 |
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520 | |a We estimated phytoplankton primary productivity (PP) in the euphotic zone of the California Current System using chlorophyll concentration (Chl) from CZCS imagery. The area was divided into two regions, Southern California (SC) and Baja California (BC), with inshore and offshore subregions, and into two seasons, cool and warm. The Chl and PP values were in general higher and more variable inshore than offshore. The cool season had higher PP values, except in the offshore subregion of BC. The effect of El Niño (ENSO) 1982–1983 was more evident inshore, leading to lower PP values during the warm season of 1983 and the cool season of 1984. Mesotrophic and eutrophic waters dominated in the inshore subregions, whereas the major contribution in the offshore subregions was from oligotrophic waters. The total PP estimated was on average 23.78% below the corresponding in situ CalCOFI PP data, 51.82% inshore and 5.93% offshore, which is within the expected agreement between in situ and modeling methods. The average daily PP for SC inshore and offshore was 0.80 and 0.61 g C m–2, respectively, and for BC inshore and offshore it was 1.03 and 0.18 g C m–2, respectively. The total PP in the euphotic zone of the study area (January 1979 to June 1986) was 2.39 Gt C. We calculated an annual average PP for the whole study area of 0.32 Gt C. | ||
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10.7773/cm.v33i1.1037 doi (DE-627)DOAJ097076813 (DE-599)DOAJ9ce7872934b344789f6c6fd610ed8d36 DE-627 ger DE-627 rakwb eng spa QH301-705.5 OA Barocio-León verfasserin aut Phytoplankton primary productivity in the euphotic zone of the California Current System estimated from CZCS imagery 2007 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier We estimated phytoplankton primary productivity (PP) in the euphotic zone of the California Current System using chlorophyll concentration (Chl) from CZCS imagery. The area was divided into two regions, Southern California (SC) and Baja California (BC), with inshore and offshore subregions, and into two seasons, cool and warm. The Chl and PP values were in general higher and more variable inshore than offshore. The cool season had higher PP values, except in the offshore subregion of BC. The effect of El Niño (ENSO) 1982–1983 was more evident inshore, leading to lower PP values during the warm season of 1983 and the cool season of 1984. Mesotrophic and eutrophic waters dominated in the inshore subregions, whereas the major contribution in the offshore subregions was from oligotrophic waters. The total PP estimated was on average 23.78% below the corresponding in situ CalCOFI PP data, 51.82% inshore and 5.93% offshore, which is within the expected agreement between in situ and modeling methods. The average daily PP for SC inshore and offshore was 0.80 and 0.61 g C m–2, respectively, and for BC inshore and offshore it was 1.03 and 0.18 g C m–2, respectively. The total PP in the euphotic zone of the study area (January 1979 to June 1986) was 2.39 Gt C. We calculated an annual average PP for the whole study area of 0.32 Gt C. primary productivity CZCS chlorophyll a California Current Biology (General) R Millán-Núñez verfasserin aut E Santamaría-del-Ángel verfasserin aut A González-Silvera verfasserin aut In Ciencias Marinas Universidad Autónoma de Baja California, 2006 33(2007), 1 (DE-627)50940216X (DE-600)2227418-2 23959053 nnns volume:33 year:2007 number:1 https://doi.org/10.7773/cm.v33i1.1037 kostenfrei https://doaj.org/article/9ce7872934b344789f6c6fd610ed8d36 kostenfrei https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1037 kostenfrei https://doaj.org/toc/0185-3880 Journal toc kostenfrei https://doaj.org/toc/2395-9053 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_381 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2119 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 33 2007 1 |
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10.7773/cm.v33i1.1037 doi (DE-627)DOAJ097076813 (DE-599)DOAJ9ce7872934b344789f6c6fd610ed8d36 DE-627 ger DE-627 rakwb eng spa QH301-705.5 OA Barocio-León verfasserin aut Phytoplankton primary productivity in the euphotic zone of the California Current System estimated from CZCS imagery 2007 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier We estimated phytoplankton primary productivity (PP) in the euphotic zone of the California Current System using chlorophyll concentration (Chl) from CZCS imagery. The area was divided into two regions, Southern California (SC) and Baja California (BC), with inshore and offshore subregions, and into two seasons, cool and warm. The Chl and PP values were in general higher and more variable inshore than offshore. The cool season had higher PP values, except in the offshore subregion of BC. The effect of El Niño (ENSO) 1982–1983 was more evident inshore, leading to lower PP values during the warm season of 1983 and the cool season of 1984. Mesotrophic and eutrophic waters dominated in the inshore subregions, whereas the major contribution in the offshore subregions was from oligotrophic waters. The total PP estimated was on average 23.78% below the corresponding in situ CalCOFI PP data, 51.82% inshore and 5.93% offshore, which is within the expected agreement between in situ and modeling methods. The average daily PP for SC inshore and offshore was 0.80 and 0.61 g C m–2, respectively, and for BC inshore and offshore it was 1.03 and 0.18 g C m–2, respectively. The total PP in the euphotic zone of the study area (January 1979 to June 1986) was 2.39 Gt C. We calculated an annual average PP for the whole study area of 0.32 Gt C. primary productivity CZCS chlorophyll a California Current Biology (General) R Millán-Núñez verfasserin aut E Santamaría-del-Ángel verfasserin aut A González-Silvera verfasserin aut In Ciencias Marinas Universidad Autónoma de Baja California, 2006 33(2007), 1 (DE-627)50940216X (DE-600)2227418-2 23959053 nnns volume:33 year:2007 number:1 https://doi.org/10.7773/cm.v33i1.1037 kostenfrei https://doaj.org/article/9ce7872934b344789f6c6fd610ed8d36 kostenfrei https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1037 kostenfrei https://doaj.org/toc/0185-3880 Journal toc kostenfrei https://doaj.org/toc/2395-9053 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_381 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2119 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 33 2007 1 |
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10.7773/cm.v33i1.1037 doi (DE-627)DOAJ097076813 (DE-599)DOAJ9ce7872934b344789f6c6fd610ed8d36 DE-627 ger DE-627 rakwb eng spa QH301-705.5 OA Barocio-León verfasserin aut Phytoplankton primary productivity in the euphotic zone of the California Current System estimated from CZCS imagery 2007 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier We estimated phytoplankton primary productivity (PP) in the euphotic zone of the California Current System using chlorophyll concentration (Chl) from CZCS imagery. The area was divided into two regions, Southern California (SC) and Baja California (BC), with inshore and offshore subregions, and into two seasons, cool and warm. The Chl and PP values were in general higher and more variable inshore than offshore. The cool season had higher PP values, except in the offshore subregion of BC. The effect of El Niño (ENSO) 1982–1983 was more evident inshore, leading to lower PP values during the warm season of 1983 and the cool season of 1984. Mesotrophic and eutrophic waters dominated in the inshore subregions, whereas the major contribution in the offshore subregions was from oligotrophic waters. The total PP estimated was on average 23.78% below the corresponding in situ CalCOFI PP data, 51.82% inshore and 5.93% offshore, which is within the expected agreement between in situ and modeling methods. The average daily PP for SC inshore and offshore was 0.80 and 0.61 g C m–2, respectively, and for BC inshore and offshore it was 1.03 and 0.18 g C m–2, respectively. The total PP in the euphotic zone of the study area (January 1979 to June 1986) was 2.39 Gt C. We calculated an annual average PP for the whole study area of 0.32 Gt C. primary productivity CZCS chlorophyll a California Current Biology (General) R Millán-Núñez verfasserin aut E Santamaría-del-Ángel verfasserin aut A González-Silvera verfasserin aut In Ciencias Marinas Universidad Autónoma de Baja California, 2006 33(2007), 1 (DE-627)50940216X (DE-600)2227418-2 23959053 nnns volume:33 year:2007 number:1 https://doi.org/10.7773/cm.v33i1.1037 kostenfrei https://doaj.org/article/9ce7872934b344789f6c6fd610ed8d36 kostenfrei https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1037 kostenfrei https://doaj.org/toc/0185-3880 Journal toc kostenfrei https://doaj.org/toc/2395-9053 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_381 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2119 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 33 2007 1 |
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10.7773/cm.v33i1.1037 doi (DE-627)DOAJ097076813 (DE-599)DOAJ9ce7872934b344789f6c6fd610ed8d36 DE-627 ger DE-627 rakwb eng spa QH301-705.5 OA Barocio-León verfasserin aut Phytoplankton primary productivity in the euphotic zone of the California Current System estimated from CZCS imagery 2007 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier We estimated phytoplankton primary productivity (PP) in the euphotic zone of the California Current System using chlorophyll concentration (Chl) from CZCS imagery. The area was divided into two regions, Southern California (SC) and Baja California (BC), with inshore and offshore subregions, and into two seasons, cool and warm. The Chl and PP values were in general higher and more variable inshore than offshore. The cool season had higher PP values, except in the offshore subregion of BC. The effect of El Niño (ENSO) 1982–1983 was more evident inshore, leading to lower PP values during the warm season of 1983 and the cool season of 1984. Mesotrophic and eutrophic waters dominated in the inshore subregions, whereas the major contribution in the offshore subregions was from oligotrophic waters. The total PP estimated was on average 23.78% below the corresponding in situ CalCOFI PP data, 51.82% inshore and 5.93% offshore, which is within the expected agreement between in situ and modeling methods. The average daily PP for SC inshore and offshore was 0.80 and 0.61 g C m–2, respectively, and for BC inshore and offshore it was 1.03 and 0.18 g C m–2, respectively. The total PP in the euphotic zone of the study area (January 1979 to June 1986) was 2.39 Gt C. We calculated an annual average PP for the whole study area of 0.32 Gt C. primary productivity CZCS chlorophyll a California Current Biology (General) R Millán-Núñez verfasserin aut E Santamaría-del-Ángel verfasserin aut A González-Silvera verfasserin aut In Ciencias Marinas Universidad Autónoma de Baja California, 2006 33(2007), 1 (DE-627)50940216X (DE-600)2227418-2 23959053 nnns volume:33 year:2007 number:1 https://doi.org/10.7773/cm.v33i1.1037 kostenfrei https://doaj.org/article/9ce7872934b344789f6c6fd610ed8d36 kostenfrei https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1037 kostenfrei https://doaj.org/toc/0185-3880 Journal toc kostenfrei https://doaj.org/toc/2395-9053 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_381 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2119 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 33 2007 1 |
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10.7773/cm.v33i1.1037 doi (DE-627)DOAJ097076813 (DE-599)DOAJ9ce7872934b344789f6c6fd610ed8d36 DE-627 ger DE-627 rakwb eng spa QH301-705.5 OA Barocio-León verfasserin aut Phytoplankton primary productivity in the euphotic zone of the California Current System estimated from CZCS imagery 2007 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier We estimated phytoplankton primary productivity (PP) in the euphotic zone of the California Current System using chlorophyll concentration (Chl) from CZCS imagery. The area was divided into two regions, Southern California (SC) and Baja California (BC), with inshore and offshore subregions, and into two seasons, cool and warm. The Chl and PP values were in general higher and more variable inshore than offshore. The cool season had higher PP values, except in the offshore subregion of BC. The effect of El Niño (ENSO) 1982–1983 was more evident inshore, leading to lower PP values during the warm season of 1983 and the cool season of 1984. Mesotrophic and eutrophic waters dominated in the inshore subregions, whereas the major contribution in the offshore subregions was from oligotrophic waters. The total PP estimated was on average 23.78% below the corresponding in situ CalCOFI PP data, 51.82% inshore and 5.93% offshore, which is within the expected agreement between in situ and modeling methods. The average daily PP for SC inshore and offshore was 0.80 and 0.61 g C m–2, respectively, and for BC inshore and offshore it was 1.03 and 0.18 g C m–2, respectively. The total PP in the euphotic zone of the study area (January 1979 to June 1986) was 2.39 Gt C. We calculated an annual average PP for the whole study area of 0.32 Gt C. primary productivity CZCS chlorophyll a California Current Biology (General) R Millán-Núñez verfasserin aut E Santamaría-del-Ángel verfasserin aut A González-Silvera verfasserin aut In Ciencias Marinas Universidad Autónoma de Baja California, 2006 33(2007), 1 (DE-627)50940216X (DE-600)2227418-2 23959053 nnns volume:33 year:2007 number:1 https://doi.org/10.7773/cm.v33i1.1037 kostenfrei https://doaj.org/article/9ce7872934b344789f6c6fd610ed8d36 kostenfrei https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1037 kostenfrei https://doaj.org/toc/0185-3880 Journal toc kostenfrei https://doaj.org/toc/2395-9053 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_381 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2119 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 33 2007 1 |
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Phytoplankton primary productivity in the euphotic zone of the California Current System estimated from CZCS imagery |
abstract |
We estimated phytoplankton primary productivity (PP) in the euphotic zone of the California Current System using chlorophyll concentration (Chl) from CZCS imagery. The area was divided into two regions, Southern California (SC) and Baja California (BC), with inshore and offshore subregions, and into two seasons, cool and warm. The Chl and PP values were in general higher and more variable inshore than offshore. The cool season had higher PP values, except in the offshore subregion of BC. The effect of El Niño (ENSO) 1982–1983 was more evident inshore, leading to lower PP values during the warm season of 1983 and the cool season of 1984. Mesotrophic and eutrophic waters dominated in the inshore subregions, whereas the major contribution in the offshore subregions was from oligotrophic waters. The total PP estimated was on average 23.78% below the corresponding in situ CalCOFI PP data, 51.82% inshore and 5.93% offshore, which is within the expected agreement between in situ and modeling methods. The average daily PP for SC inshore and offshore was 0.80 and 0.61 g C m–2, respectively, and for BC inshore and offshore it was 1.03 and 0.18 g C m–2, respectively. The total PP in the euphotic zone of the study area (January 1979 to June 1986) was 2.39 Gt C. We calculated an annual average PP for the whole study area of 0.32 Gt C. |
abstractGer |
We estimated phytoplankton primary productivity (PP) in the euphotic zone of the California Current System using chlorophyll concentration (Chl) from CZCS imagery. The area was divided into two regions, Southern California (SC) and Baja California (BC), with inshore and offshore subregions, and into two seasons, cool and warm. The Chl and PP values were in general higher and more variable inshore than offshore. The cool season had higher PP values, except in the offshore subregion of BC. The effect of El Niño (ENSO) 1982–1983 was more evident inshore, leading to lower PP values during the warm season of 1983 and the cool season of 1984. Mesotrophic and eutrophic waters dominated in the inshore subregions, whereas the major contribution in the offshore subregions was from oligotrophic waters. The total PP estimated was on average 23.78% below the corresponding in situ CalCOFI PP data, 51.82% inshore and 5.93% offshore, which is within the expected agreement between in situ and modeling methods. The average daily PP for SC inshore and offshore was 0.80 and 0.61 g C m–2, respectively, and for BC inshore and offshore it was 1.03 and 0.18 g C m–2, respectively. The total PP in the euphotic zone of the study area (January 1979 to June 1986) was 2.39 Gt C. We calculated an annual average PP for the whole study area of 0.32 Gt C. |
abstract_unstemmed |
We estimated phytoplankton primary productivity (PP) in the euphotic zone of the California Current System using chlorophyll concentration (Chl) from CZCS imagery. The area was divided into two regions, Southern California (SC) and Baja California (BC), with inshore and offshore subregions, and into two seasons, cool and warm. The Chl and PP values were in general higher and more variable inshore than offshore. The cool season had higher PP values, except in the offshore subregion of BC. The effect of El Niño (ENSO) 1982–1983 was more evident inshore, leading to lower PP values during the warm season of 1983 and the cool season of 1984. Mesotrophic and eutrophic waters dominated in the inshore subregions, whereas the major contribution in the offshore subregions was from oligotrophic waters. The total PP estimated was on average 23.78% below the corresponding in situ CalCOFI PP data, 51.82% inshore and 5.93% offshore, which is within the expected agreement between in situ and modeling methods. The average daily PP for SC inshore and offshore was 0.80 and 0.61 g C m–2, respectively, and for BC inshore and offshore it was 1.03 and 0.18 g C m–2, respectively. The total PP in the euphotic zone of the study area (January 1979 to June 1986) was 2.39 Gt C. We calculated an annual average PP for the whole study area of 0.32 Gt C. |
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Phytoplankton primary productivity in the euphotic zone of the California Current System estimated from CZCS imagery |
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https://doi.org/10.7773/cm.v33i1.1037 https://doaj.org/article/9ce7872934b344789f6c6fd610ed8d36 https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1037 https://doaj.org/toc/0185-3880 https://doaj.org/toc/2395-9053 |
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The area was divided into two regions, Southern California (SC) and Baja California (BC), with inshore and offshore subregions, and into two seasons, cool and warm. The Chl and PP values were in general higher and more variable inshore than offshore. The cool season had higher PP values, except in the offshore subregion of BC. The effect of El Niño (ENSO) 1982–1983 was more evident inshore, leading to lower PP values during the warm season of 1983 and the cool season of 1984. Mesotrophic and eutrophic waters dominated in the inshore subregions, whereas the major contribution in the offshore subregions was from oligotrophic waters. The total PP estimated was on average 23.78% below the corresponding in situ CalCOFI PP data, 51.82% inshore and 5.93% offshore, which is within the expected agreement between in situ and modeling methods. The average daily PP for SC inshore and offshore was 0.80 and 0.61 g C m–2, respectively, and for BC inshore and offshore it was 1.03 and 0.18 g C m–2, respectively. The total PP in the euphotic zone of the study area (January 1979 to June 1986) was 2.39 Gt C. 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