Relating Precipitation and Water Management to Nutrient Concentrations in the Oligotrophic "Upside-down" Estuaries of the Florida Everglades
We present 8 yr of long-term water quality, climatological, and water management data for 17 locations in Everglades National Park, Florida. Total phosphorus (P) concentration data from freshwater sites ($typically
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| Veröffentlicht in: | Limnology and oceanography 2006-01, Vol.51 (1), p.602-616 |
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| creator | Childers, Daniel L. Boyer, Joseph N. Stephen E. Davis Madden, Christopher J. Rudnick, David T. Fred K. Sklar |
| description | We present 8 yr of long-term water quality, climatological, and water management data for 17 locations in Everglades National Park, Florida. Total phosphorus (P) concentration data from freshwater sites ($typically |
| doi_str_mv | 10.4319/lo.2006.51.1_part_2.0602 |
| format | Article |
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Davis ; Madden, Christopher J. ; Rudnick, David T. ; Fred K. Sklar</creator><creatorcontrib>Childers, Daniel L. ; Boyer, Joseph N. ; Stephen E. Davis ; Madden, Christopher J. ; Rudnick, David T. ; Fred K. Sklar</creatorcontrib><description>We present 8 yr of long-term water quality, climatological, and water management data for 17 locations in Everglades National Park, Florida. Total phosphorus (P) concentration data from freshwater sites ($typically <0.25 \mumol L^{-1}$, or$8 \mug L^{-1}$) indicate the oligotrophic, P-limited nature of this large freshwater-estuarine landscape. Total P concentrations at estuarine sites near the Gulf of Mexico ($average \approx 0.5 \mumol L^{-1}$) demonstrate the marine source for this limiting nutrient. This "upside down" phenomenon, with the limiting nutrient supplied by the ocean and not the land, is a defining characteristic of the Everglade landscape. We present a conceptual model of how the seasonality of precipitation and the management of canal water inputs control the marine P supply, and we hypothesize that seasonal variability in water residence time controls water quality through internal biogeochemical processing. Low freshwater inflows during the dry season increase estuarine residence times, enabling local processes to control nutrient availability and water quality. El Niño-Southern Oscillation (ENSO) events tend to mute the seasonality of rainfall without altering total annual precipitation inputs. The$Ni\tilde{n}o3$ENSO index (which indicates an ENSO event when positive and a La Niña event when negative) was positively correlated with both annual rainfall and the ratio of dry season to wet season precipitation. This ENSO-driven disruption in seasonal rainfall patterns affected salinity patterns and tended to reduce marine inputs of P to Everglades estuaries. ENSO events also decreased dry season residence times, reducing the importance of estuarine nutrient processing. The combination of variable water management activities and interannual differences in precipitation patterns has a strong influence on nutrient and salinity patterns in Everglades estuaries.</description><identifier>ISSN: 0024-3590</identifier><identifier>EISSN: 1939-5590</identifier><identifier>DOI: 10.4319/lo.2006.51.1_part_2.0602</identifier><identifier>CODEN: LIOCAH</identifier><language>eng</language><publisher>Waco, TX: The American Society of Limnology and Oceanography</publisher><subject>Animal and plant ecology ; Animal, plant and microbial ecology ; Biological and medical sciences ; Brackish ; Brackish water ecosystems ; Canals ; Dry seasons ; Earth sciences ; Earth, ocean, space ; El Nino ; Estuaries ; Everglades ; Exact sciences and technology ; Fresh water ; Freshwater ; Fundamental and applied biological sciences. Psychology ; Hydrology. 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Davis</creatorcontrib><creatorcontrib>Madden, Christopher J.</creatorcontrib><creatorcontrib>Rudnick, David T.</creatorcontrib><creatorcontrib>Fred K. Sklar</creatorcontrib><title>Relating Precipitation and Water Management to Nutrient Concentrations in the Oligotrophic "Upside-down" Estuaries of the Florida Everglades</title><title>Limnology and oceanography</title><description>We present 8 yr of long-term water quality, climatological, and water management data for 17 locations in Everglades National Park, Florida. Total phosphorus (P) concentration data from freshwater sites ($typically <0.25 \mumol L^{-1}$, or$8 \mug L^{-1}$) indicate the oligotrophic, P-limited nature of this large freshwater-estuarine landscape. Total P concentrations at estuarine sites near the Gulf of Mexico ($average \approx 0.5 \mumol L^{-1}$) demonstrate the marine source for this limiting nutrient. This "upside down" phenomenon, with the limiting nutrient supplied by the ocean and not the land, is a defining characteristic of the Everglade landscape. We present a conceptual model of how the seasonality of precipitation and the management of canal water inputs control the marine P supply, and we hypothesize that seasonal variability in water residence time controls water quality through internal biogeochemical processing. Low freshwater inflows during the dry season increase estuarine residence times, enabling local processes to control nutrient availability and water quality. El Niño-Southern Oscillation (ENSO) events tend to mute the seasonality of rainfall without altering total annual precipitation inputs. The$Ni\tilde{n}o3$ENSO index (which indicates an ENSO event when positive and a La Niña event when negative) was positively correlated with both annual rainfall and the ratio of dry season to wet season precipitation. This ENSO-driven disruption in seasonal rainfall patterns affected salinity patterns and tended to reduce marine inputs of P to Everglades estuaries. ENSO events also decreased dry season residence times, reducing the importance of estuarine nutrient processing. The combination of variable water management activities and interannual differences in precipitation patterns has a strong influence on nutrient and salinity patterns in Everglades estuaries.</description><subject>Animal and plant ecology</subject><subject>Animal, plant and microbial ecology</subject><subject>Biological and medical sciences</subject><subject>Brackish</subject><subject>Brackish water ecosystems</subject><subject>Canals</subject><subject>Dry seasons</subject><subject>Earth sciences</subject><subject>Earth, ocean, space</subject><subject>El Nino</subject><subject>Estuaries</subject><subject>Everglades</subject><subject>Exact sciences and technology</subject><subject>Fresh water</subject><subject>Freshwater</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Hydrology. Hydrogeology</subject><subject>Marine</subject><subject>Marine and continental quaternary</subject><subject>Rain</subject><subject>Rainy seasons</subject><subject>Salinity</subject><subject>Surficial geology</subject><subject>Synecology</subject><subject>Water quality</subject><subject>Water resources</subject><issn>0024-3590</issn><issn>1939-5590</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><recordid>eNqNkcFuEzEQhlcIJELhDThYlYDTLrbX3tjHKkqhUmiqKoij5dizqStnvdgOVd-Bh8bbBLghTjOj-f5_RvqrChHcsJbIjz40FOOu4aQhatQxK9rgDtNn1YzIVtacS_y8mmFMWd2W_mX1KqV7jLHknM-qn7fgdXbDDt1EMG50uUxhQHqw6JvOENEXPegd7GHIKAd0fcjRTf0iDKbU-IQn5AaU7wCtvduFHMN45ww6_zomZ6G24WE4R8uUD7poEwr9E3vpQ3RWo-UPiDuvLaTX1Yte-wRvTvWs2lwuN4vP9Wr96Wpxsao1p4LWsBUcMMG9oIxgAiCtJFgyoLY1UuiuJcxaQToh5p1pt1tLWyMMJQKYLcxZ9eFoO8bw_QApq71LBrzXA4RDUnPWYY5bJgr5_p8kxUJy2uICiiNoYkgpQq_G6PY6PiqC1ZST8kFNOSlO1O-c1JRTkb473dDJaN9HPRiX_urLN3I-J4W7OnIPzsPjf_ur1fV6WnBCbi5uN_R08-3R6z7lEP94MSZlR1j7CxSctyI</recordid><startdate>20060101</startdate><enddate>20060101</enddate><creator>Childers, Daniel L.</creator><creator>Boyer, Joseph N.</creator><creator>Stephen E. 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Davis</au><au>Madden, Christopher J.</au><au>Rudnick, David T.</au><au>Fred K. Sklar</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Relating Precipitation and Water Management to Nutrient Concentrations in the Oligotrophic "Upside-down" Estuaries of the Florida Everglades</atitle><jtitle>Limnology and oceanography</jtitle><date>2006-01-01</date><risdate>2006</risdate><volume>51</volume><issue>1</issue><spage>602</spage><epage>616</epage><pages>602-616</pages><issn>0024-3590</issn><eissn>1939-5590</eissn><coden>LIOCAH</coden><abstract>We present 8 yr of long-term water quality, climatological, and water management data for 17 locations in Everglades National Park, Florida. Total phosphorus (P) concentration data from freshwater sites ($typically <0.25 \mumol L^{-1}$, or$8 \mug L^{-1}$) indicate the oligotrophic, P-limited nature of this large freshwater-estuarine landscape. Total P concentrations at estuarine sites near the Gulf of Mexico ($average \approx 0.5 \mumol L^{-1}$) demonstrate the marine source for this limiting nutrient. This "upside down" phenomenon, with the limiting nutrient supplied by the ocean and not the land, is a defining characteristic of the Everglade landscape. We present a conceptual model of how the seasonality of precipitation and the management of canal water inputs control the marine P supply, and we hypothesize that seasonal variability in water residence time controls water quality through internal biogeochemical processing. Low freshwater inflows during the dry season increase estuarine residence times, enabling local processes to control nutrient availability and water quality. El Niño-Southern Oscillation (ENSO) events tend to mute the seasonality of rainfall without altering total annual precipitation inputs. The$Ni\tilde{n}o3$ENSO index (which indicates an ENSO event when positive and a La Niña event when negative) was positively correlated with both annual rainfall and the ratio of dry season to wet season precipitation. This ENSO-driven disruption in seasonal rainfall patterns affected salinity patterns and tended to reduce marine inputs of P to Everglades estuaries. ENSO events also decreased dry season residence times, reducing the importance of estuarine nutrient processing. The combination of variable water management activities and interannual differences in precipitation patterns has a strong influence on nutrient and salinity patterns in Everglades estuaries.</abstract><cop>Waco, TX</cop><pub>The American Society of Limnology and Oceanography</pub><doi>10.4319/lo.2006.51.1_part_2.0602</doi><tpages>15</tpages></addata></record> |
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| source | Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; JSTOR Archive Collection A-Z Listing; Wiley Free Content; Wiley Online Library All Journals; Alma/SFX Local Collection |
| subjects | Animal and plant ecology Animal, plant and microbial ecology Biological and medical sciences Brackish Brackish water ecosystems Canals Dry seasons Earth sciences Earth, ocean, space El Nino Estuaries Everglades Exact sciences and technology Fresh water Freshwater Fundamental and applied biological sciences. Psychology Hydrology. Hydrogeology Marine Marine and continental quaternary Rain Rainy seasons Salinity Surficial geology Synecology Water quality Water resources |
| title | Relating Precipitation and Water Management to Nutrient Concentrations in the Oligotrophic "Upside-down" Estuaries of the Florida Everglades |
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