Indicators

Nutrients

Total Nitrogen - Discrete

Scatter plot of monthly average total nitrogen over time. If the time series included ten or more years of discrete observations, a significant (blue) or non-significant (magenta) trend line is also shown. Only nitrogen values obtained from laboratory analyses (triangles) are included in the plot.
Scatter plot of monthly average total nitrogen over time. If the time series included ten or more years of discrete observations, a significant (blue) or non-significant (magenta) trend line is also shown. Only nitrogen values obtained from laboratory analyses (triangles) are included in the plot.
Table:

Total nitrogen showed no detectable trend between 1997 and 2026.

Activity Type Statistical Trend Sample Count Years with Data Period of Record Median Result Value Tau Sen Intercept Sen Slope P
Lab No detectable trend 6173 30 1997 - 2026 0.543 -0.01778 0.61556 -0.00073 0.6312
Map showing location of discrete water quality sampling locations within the boundaries of Guana Tolomato Matanzas National Estuarine Research Reserve. The bubble size on the maps above reflect the amount of data available at each sampling site.
Map showing location of discrete water quality sampling locations within the boundaries of Guana Tolomato Matanzas National Estuarine Research Reserve. The bubble size on the maps above reflect the amount of data available at each sampling site.

Total Phosphorus - Discrete

Scatter plot of monthly average total phosphorus over time. If the time series included ten or more years of discrete observations, a significant (blue) or non-significant (magenta) trend line is also shown. Only phosphorus values obtained from laboratory analyses (triangles) are included in the plot.
Scatter plot of monthly average total phosphorus over time. If the time series included ten or more years of discrete observations, a significant (blue) or non-significant (magenta) trend line is also shown. Only phosphorus values obtained from laboratory analyses (triangles) are included in the plot.
Table:

Monthly average total phosphorus decreased by less than 0.01 mg/L per year.

Activity Type Statistical Trend Sample Count Years with Data Period of Record Median Result Value Tau Sen Intercept Sen Slope P
Lab Decreasing trend 9915 30 1997 - 2026 0.071 -0.2311 0.08669 -0.0008 0
Map showing location of discrete water quality sampling locations within the boundaries of Guana Tolomato Matanzas National Estuarine Research Reserve. The bubble size on the maps above reflect the amount of data available at each sampling site.
Map showing location of discrete water quality sampling locations within the boundaries of Guana Tolomato Matanzas National Estuarine Research Reserve. The bubble size on the maps above reflect the amount of data available at each sampling site.

Water Quality

Dissolved Oxygen - Continuous

Scatter plot of monthly average dissolved oxygen over time at continuously monitored program locations. Each location is analyzed separately, with significant (blue) or non-significant (magenta) trend lines shown for time series that included five or more years of observations.
Scatter plot of monthly average dissolved oxygen over time at continuously monitored program locations. Each location is analyzed separately, with significant (blue) or non-significant (magenta) trend lines shown for time series that included five or more years of observations.
Table:

At two program locations, monthly average dissolved oxygen increased by less than 0.01 mg/L per year at one site and by 0.01 mg/L per year at the other. No detectable change in monthly average dissolved oxygen was observed at two locations.

Program Location Statistical Trend Sample Count Years with Data Period of Record Median Result Value Tau Sen Intercept Sen Slope P
gtmfmwq Increasing trend 727585 26 2001 - 2026 6.5 0.09 6.26 0.00 0.03
gtmpcwq No detectable trend 746219 26 2001 - 2026 5.5 0.05 5.27 0.01 0.17
gtmpiwq No detectable trend 708889 26 2001 - 2026 5.9 -0.08 5.81 -0.01 0.07
gtmsswq Increasing trend 708497 25 2002 - 2026 6.3 0.08 5.94 0.01 0.05
Map showing location of dissolved oxygen continuous water quality sampling locations within the boundaries of Guana Tolomato Matanzas National Estuarine Research Reserve. The bubble size on the maps above reflect the amount of data available at each sampling site.
Map showing location of dissolved oxygen continuous water quality sampling locations within the boundaries of Guana Tolomato Matanzas National Estuarine Research Reserve. The bubble size on the maps above reflect the amount of data available at each sampling site.

Dissolved Oxygen - Discrete

Scatter plot of monthly average dissolved oxygen over time. If the time series included ten or more years of discrete observations, a significant (blue) or non-significant (magenta) trend line is also shown. Only dissolved oxygen values measured in the field (circles) are included in the plot.
Scatter plot of monthly average dissolved oxygen over time. If the time series included ten or more years of discrete observations, a significant (blue) or non-significant (magenta) trend line is also shown. Only dissolved oxygen values measured in the field (circles) are included in the plot.
Table:

Monthly average dissolved oxygen decreased by 0.02 mg/L per year.

Activity Type Statistical Trend Sample Count Years with Data Period of Record Median Result Value Tau Sen Intercept Sen Slope P
Field Decreasing trend 22917 32 1995 - 2026 6 -0.15925 6.18846 -0.02354 0
Map showing location of discrete water quality sampling locations within the boundaries of Guana Tolomato Matanzas National Estuarine Research Reserve. The bubble size on the maps above reflect the amount of data available at each sampling site.
Map showing location of discrete water quality sampling locations within the boundaries of Guana Tolomato Matanzas National Estuarine Research Reserve. The bubble size on the maps above reflect the amount of data available at each sampling site.

Dissolved Oxygen Saturation - Continuous

Scatter plot of monthly average dissolved oxygen saturation over time at continuously monitored program locations. Each location is analyzed separately, with significant (blue) or non-significant (magenta) trend lines shown for time series that included five or more years of observations.
Scatter plot of monthly average dissolved oxygen saturation over time at continuously monitored program locations. Each location is analyzed separately, with significant (blue) or non-significant (magenta) trend lines shown for time series that included five or more years of observations.
Table:

At two program locations, monthly average dissolved oxygen saturation increased by 0.08% per year at one site and by 0.1% per year at the other. At one program location, monthly average dissolved oxygen saturation decreased by 0.14% per year. No detectable change in monthly average dissolved oxygen saturation was observed at one location.

Program Location Statistical Trend Sample Count Years with Data Period of Record Median Result Value Tau Sen Intercept Sen Slope P
gtmfmwq Increasing trend 740628 26 2001 - 2026 92.8 0.15 89.32 0.08 0.00
gtmpcwq No detectable trend 747712 26 2001 - 2026 71.7 0.04 67.87 0.05 0.35
gtmpiwq Decreasing trend 714707 26 2001 - 2026 82.3 -0.15 82.43 -0.14 0.00
gtmsswq Increasing trend 714449 25 2002 - 2026 89.5 0.14 84.45 0.10 0.00
Map showing location of dissolved oxygen saturation continuous water quality sampling locations within the boundaries of Guana Tolomato Matanzas National Estuarine Research Reserve. The bubble size on the maps above reflect the amount of data available at each sampling site.
Map showing location of dissolved oxygen saturation continuous water quality sampling locations within the boundaries of Guana Tolomato Matanzas National Estuarine Research Reserve. The bubble size on the maps above reflect the amount of data available at each sampling site.

Dissolved Oxygen Saturation - Discrete

Scatter plot of monthly average dissolved oxygen saturation over time. If the time series included ten or more years of discrete observations, a significant (blue) or non-significant (magenta) trend line is also shown. Only dissolved oxygen saturation values measured in the field (circles) are included in the plot.
Scatter plot of monthly average dissolved oxygen saturation over time. If the time series included ten or more years of discrete observations, a significant (blue) or non-significant (magenta) trend line is also shown. Only dissolved oxygen saturation values measured in the field (circles) are included in the plot.
Table:

Monthly average dissolved oxygen saturation increased by 0.25% per year.

Activity Type Statistical Trend Sample Count Years with Data Period of Record Median Result Value Tau Sen Intercept Sen Slope P
Field Increasing trend 2583 25 1999 - 2026 82 0.11872 79.04637 0.24899 0.0169
Map showing location of discrete water quality sampling locations within the boundaries of Guana Tolomato Matanzas National Estuarine Research Reserve. The bubble size on the maps above reflect the amount of data available at each sampling site.
Map showing location of discrete water quality sampling locations within the boundaries of Guana Tolomato Matanzas National Estuarine Research Reserve. The bubble size on the maps above reflect the amount of data available at each sampling site.

Salinity - Discrete

Scatter plot of monthly average salinity over time. If the time series included ten or more years of discrete observations, significant (blue) or non-significant (magenta) trend lines are also shown. Discrete salinity values derived from grab samples analyzed in the field (circles) or the laboratory (triangles) are both included in the plot.
Scatter plot of monthly average salinity over time. If the time series included ten or more years of discrete observations, significant (blue) or non-significant (magenta) trend lines are also shown. Discrete salinity values derived from grab samples analyzed in the field (circles) or the laboratory (triangles) are both included in the plot.
Table:

Monthly average salinity decreased by 0.31 ppt per year.

Activity Type Statistical Trend Sample Count Years with Data Period of Record Median Result Value Tau Sen Intercept Sen Slope P
All Decreasing trend 26319 33 1980 - 2026 31.7 -0.36395 37.38791 -0.30792 0
Map showing location of discrete water quality sampling locations within the boundaries of Guana Tolomato Matanzas National Estuarine Research Reserve. The bubble size on the maps above reflect the amount of data available at each sampling site.
Map showing location of discrete water quality sampling locations within the boundaries of Guana Tolomato Matanzas National Estuarine Research Reserve. The bubble size on the maps above reflect the amount of data available at each sampling site.

Salinity - Continuous

Scatter plot of monthly average salinity over time at continuously monitored program locations. Each location is analyzed separately, with significant (blue) or non-significant (magenta) trend lines shown for time series that included five or more years of observations.
Scatter plot of monthly average salinity over time at continuously monitored program locations. Each location is analyzed separately, with significant (blue) or non-significant (magenta) trend lines shown for time series that included five or more years of observations.
Table:

At four program locations, monthly average salinity decreased between 0.05 and 0.27 ppt per year. There was insufficient data to fit a model for one location.

Program Location Statistical Trend Sample Count Years with Data Period of Record Median Result Value Tau Sen Intercept Sen Slope P
gtmfmwq Decreasing trend 715475 26 2001 - 2026 34.40 -0.15 34.84 -0.05 0
gtmpcwq Decreasing trend 755999 26 2001 - 2026 16.70 -0.12 16.35 -0.18 0.01
gtmpiwq Decreasing trend 713006 26 2001 - 2026 27.80 -0.25 31.88 -0.27 0
gtmsswq Decreasing trend 693140 25 2002 - 2026 33.90 -0.12 34.21 -0.05 0.01
872-0494 Insufficient data 34918 2 2020 - 2021 8.99 - - - -
Map showing location of salinity continuous water quality sampling locations within the boundaries of Guana Tolomato Matanzas National Estuarine Research Reserve. The bubble size on the maps above reflect the amount of data available at each sampling site.
Map showing location of salinity continuous water quality sampling locations within the boundaries of Guana Tolomato Matanzas National Estuarine Research Reserve. The bubble size on the maps above reflect the amount of data available at each sampling site.

Water Temperature - Continuous

Scatter plot of monthly average water temperature over time at continuously monitored program locations. Each location is analyzed separately, with significant (blue) or non-significant (magenta) trend lines shown for time series that included five or more years of observations.
Scatter plot of monthly average water temperature over time at continuously monitored program locations. Each location is analyzed separately, with significant (blue) or non-significant (magenta) trend lines shown for time series that included five or more years of observations.
Table:

At four program locations, monthly average water temperature increased between 0.04 and 0.05°C per year. There was insufficient data to fit a model for one location.

Program Location Statistical Trend Sample Count Years with Data Period of Record Median Result Value Tau Sen Intercept Sen Slope P
gtmfmwq Increasing trend 760511 26 2001 - 2026 23.60 0.21 23.03 0.04 0
gtmpcwq Increasing trend 764565 26 2001 - 2026 24.30 0.16 23.69 0.04 0
gtmpiwq Increasing trend 763299 26 2001 - 2026 24.20 0.18 23.63 0.04 0
gtmsswq Increasing trend 726793 25 2002 - 2026 23.80 0.21 23.03 0.05 0
872-0494 Insufficient data 35473 2 2020 - 2021 22.34 - - - -
Map showing location of water temperature continuous water quality sampling locations within the boundaries of Guana Tolomato Matanzas National Estuarine Research Reserve. The bubble size on the maps above reflect the amount of data available at each sampling site.
Map showing location of water temperature continuous water quality sampling locations within the boundaries of Guana Tolomato Matanzas National Estuarine Research Reserve. The bubble size on the maps above reflect the amount of data available at each sampling site.

Water Temperature - Discrete

Scatter plot of monthly average water temperature over time. If the time series included ten or more years of discrete observations, a significant (blue) or non-significant (magenta) trend line is also shown. Only water temperature measurements taken in the field (circles) are included in the plot.
Scatter plot of monthly average water temperature over time. If the time series included ten or more years of discrete observations, a significant (blue) or non-significant (magenta) trend line is also shown. Only water temperature measurements taken in the field (circles) are included in the plot.
Table:

Monthly average water temperature increased by 0.05°C per year.

Activity Type Statistical Trend Sample Count Years with Data Period of Record Median Result Value Tau Sen Intercept Sen Slope P
Field Increasing trend 25825 32 1995 - 2026 23.3 0.21365 22.22481 0.05381 0
Map showing location of discrete water quality sampling locations within the boundaries of Guana Tolomato Matanzas National Estuarine Research Reserve. The bubble size on the maps above reflect the amount of data available at each sampling site.
Map showing location of discrete water quality sampling locations within the boundaries of Guana Tolomato Matanzas National Estuarine Research Reserve. The bubble size on the maps above reflect the amount of data available at each sampling site.

pH - Continuous

Scatter plot of monthly average pH over time at continuously monitored program locations. Each location is analyzed separately, with significant (blue) or non-significant (magenta) trend lines shown for time series that included five or more years of observations.
Scatter plot of monthly average pH over time at continuously monitored program locations. Each location is analyzed separately, with significant (blue) or non-significant (magenta) trend lines shown for time series that included five or more years of observations.
Table:

At two program locations, monthly average pH decreased by less than 0.01 pH units per year. No detectable change in monthly average pH was observed at two locations.

Program Location Statistical Trend Sample Count Years with Data Period of Record Median Result Value Tau Sen Intercept Sen Slope P
gtmfmwq Decreasing trend 711656 26 2001 - 2026 8.0 -0.15 7.98 0 0.00
gtmpcwq No detectable trend 740446 26 2001 - 2026 7.4 -0.07 7.43 0 0.07
gtmpiwq Decreasing trend 705937 26 2001 - 2026 7.6 -0.17 7.61 0 0.00
gtmsswq No detectable trend 684222 25 2002 - 2026 7.9 -0.01 7.86 0 0.93
Map showing location of ph continuous water quality sampling locations within the boundaries of Guana Tolomato Matanzas National Estuarine Research Reserve. The bubble size on the maps above reflect the amount of data available at each sampling site.
Map showing location of ph continuous water quality sampling locations within the boundaries of Guana Tolomato Matanzas National Estuarine Research Reserve. The bubble size on the maps above reflect the amount of data available at each sampling site.

pH - Discrete

Scatter plot of monthly average pH over time. If the time series included ten or more years of discrete observations, a significant (blue) or non-significant (magenta) trend line is also shown. Only pH values measured in the field (circles) are included in the plot.
Scatter plot of monthly average pH over time. If the time series included ten or more years of discrete observations, a significant (blue) or non-significant (magenta) trend line is also shown. Only pH values measured in the field (circles) are included in the plot.
Table:

Monthly average pH decreased by 0.01 pH units per year.

Activity Type Statistical Trend Sample Count Years with Data Period of Record Median Result Value Tau Sen Intercept Sen Slope P
Field Decreasing trend 19181 32 1995 - 2026 7.8 -0.35509 7.84406 -0.01293 0
Map showing location of discrete water quality sampling locations within the boundaries of Guana Tolomato Matanzas National Estuarine Research Reserve. The bubble size on the maps above reflect the amount of data available at each sampling site.
Map showing location of discrete water quality sampling locations within the boundaries of Guana Tolomato Matanzas National Estuarine Research Reserve. The bubble size on the maps above reflect the amount of data available at each sampling site.

Specific Conductivity - Continuous

Scatter plot of monthly average specific conductivity over time at continuously monitored program locations. Each location is analyzed separately, with significant (blue) or non-significant (magenta) trend lines shown for time series that included five or more years of observations.
Scatter plot of monthly average specific conductivity over time at continuously monitored program locations. Each location is analyzed separately, with significant (blue) or non-significant (magenta) trend lines shown for time series that included five or more years of observations.
Table:

At four program locations, monthly average specific conductivity decreased between 0.07 and 0.39 mS/cm per year. There was insufficient data to fit a model for one location.

Program Location Statistical Trend Sample Count Years with Data Period of Record Median Result Value Tau Sen Intercept Sen Slope P
gtmfmwq Decreasing trend 715474 26 2001 - 2026 52.22 -0.15 52.81 -0.07 0
gtmpcwq Decreasing trend 756766 26 2001 - 2026 27.20 -0.12 27.25 -0.27 0
gtmpiwq Decreasing trend 713006 26 2001 - 2026 43.23 -0.25 48.87 -0.39 0
gtmsswq Decreasing trend 693139 25 2002 - 2026 51.55 -0.12 51.91 -0.07 0.01
872-0494 Insufficient data 34929 2 2020 - 2021 14.00 - - - -
Map showing location of specific conductivity continuous water quality sampling locations within the boundaries of Guana Tolomato Matanzas National Estuarine Research Reserve. The bubble size on the maps above reflect the amount of data available at each sampling site.
Map showing location of specific conductivity continuous water quality sampling locations within the boundaries of Guana Tolomato Matanzas National Estuarine Research Reserve. The bubble size on the maps above reflect the amount of data available at each sampling site.

Water Clarity

Turbidity - Continuous

Scatter plot of monthly average turbidity over time at continuously monitored program locations. Each location is analyzed separately, with significant (blue) or non-significant (magenta) trend lines shown for time series that included five or more years of observations.
Scatter plot of monthly average turbidity over time at continuously monitored program locations. Each location is analyzed separately, with significant (blue) or non-significant (magenta) trend lines shown for time series that included five or more years of observations.
Table:

At three program locations, monthly average turbidity decreased between 0.07 and 0.09 NTU per year. No detectable change in monthly average turbidity was observed at one location.

Program Location Statistical Trend Sample Count Years with Data Period of Record Median Result Value Tau Sen Intercept Sen Slope P
gtmfmwq Decreasing trend 726723 26 2001 - 2026 7 -0.13 8.89 -0.07 0.00
gtmpcwq Decreasing trend 731428 26 2001 - 2026 9 -0.15 9.70 -0.09 0.00
gtmpiwq Decreasing trend 689004 26 2001 - 2026 10 -0.13 14.35 -0.09 0.00
gtmsswq No detectable trend 679756 25 2002 - 2026 9 -0.04 10.29 -0.03 0.35
Map showing location of turbidity continuous water quality sampling locations within the boundaries of Guana Tolomato Matanzas National Estuarine Research Reserve. The bubble size on the maps above reflect the amount of data available at each sampling site.
Map showing location of turbidity continuous water quality sampling locations within the boundaries of Guana Tolomato Matanzas National Estuarine Research Reserve. The bubble size on the maps above reflect the amount of data available at each sampling site.

Turbidity - Discrete

Scatter plot of monthly average turbidity over time. If the time series included ten or more years of discrete observations, a significant (blue) or non-significant (magenta) trend line is also shown. Only turbidity values measured in the laboratory (triangles) are included in the plot.
Scatter plot of monthly average turbidity over time. If the time series included ten or more years of discrete observations, a significant (blue) or non-significant (magenta) trend line is also shown. Only turbidity values measured in the laboratory (triangles) are included in the plot.
Table:

Monthly average turbidity increased by 0.1 NTU per year, indicating a decrease in water clarity.

Activity Type Statistical Trend Sample Count Years with Data Period of Record Median Result Value Tau Sen Intercept Sen Slope P
Lab Increasing trend 14913 32 1995 - 2026 4.5 0.25548 4.7623 0.09574 0
Map showing location of discrete water quality sampling locations within the boundaries of Guana Tolomato Matanzas National Estuarine Research Reserve. The bubble size on the maps above reflect the amount of data available at each sampling site.
Map showing location of discrete water quality sampling locations within the boundaries of Guana Tolomato Matanzas National Estuarine Research Reserve. The bubble size on the maps above reflect the amount of data available at each sampling site.

Total Suspended Solids - Discrete

Scatter plot of monthly average total suspended solids (TSS) over time. If the time series included ten or more years of discrete observations, a significant (blue) or non-significant (magenta) trend line is also shown. Only TSS values obtained from laboratory analyses (triangles) are included in the plot.
Scatter plot of monthly average total suspended solids (TSS) over time. If the time series included ten or more years of discrete observations, a significant (blue) or non-significant (magenta) trend line is also shown. Only TSS values obtained from laboratory analyses (triangles) are included in the plot.
Table:

Monthly average total suspended solids decreased by 0.61 mg/L per year, indicating an increase in water clarity.

Activity Type Statistical Trend Sample Count Years with Data Period of Record Median Result Value Tau Sen Intercept Sen Slope P
Lab Decreasing trend 5366 30 1997 - 2026 17 -0.38405 28.97912 -0.61165 0
Map showing location of discrete water quality sampling locations within the boundaries of Guana Tolomato Matanzas National Estuarine Research Reserve. The bubble size on the maps above reflect the amount of data available at each sampling site.
Map showing location of discrete water quality sampling locations within the boundaries of Guana Tolomato Matanzas National Estuarine Research Reserve. The bubble size on the maps above reflect the amount of data available at each sampling site.

Chlorophyll a, Uncorrected for Pheophytin - Discrete

Scatter plot of monthly average levels of chlorophyll a, uncorrected for pheophytin, over time. If the time series included ten or more years of discrete observations, a significant (blue) or non-significant (magenta) trend line is also shown. Only laboratory-analyzed chlorophyll a (triangles) is included in the plot.
Scatter plot of monthly average levels of chlorophyll a, uncorrected for pheophytin, over time. If the time series included ten or more years of discrete observations, a significant (blue) or non-significant (magenta) trend line is also shown. Only laboratory-analyzed chlorophyll a (triangles) is included in the plot.
Table:

Monthly average chlorophyll a, uncorrected for pheophytin, increased by 0.17 µg/L per year, indicating a decrease in water clarity.

Activity Type Statistical Trend Sample Count Years with Data Period of Record Median Result Value Tau Sen Intercept Sen Slope P
Lab Increasing trend 6633 25 2002 - 2026 6.2541 0.23604 5.79225 0.16988 0
Map showing location of discrete water quality sampling locations within the boundaries of Guana Tolomato Matanzas National Estuarine Research Reserve. The bubble size on the maps above reflect the amount of data available at each sampling site.
Map showing location of discrete water quality sampling locations within the boundaries of Guana Tolomato Matanzas National Estuarine Research Reserve. The bubble size on the maps above reflect the amount of data available at each sampling site.

Chlorophyll a, Corrected for Pheophytin - Discrete

Scatter plot of monthly average levels of chlorophyll a, corrected for pheophytin, over time. If the time series included ten or more years of discrete observations, a significant (blue) or non-significant (magenta) trend line is also shown. Only laboratory-analyzed chlorophyll a (triangles) is included in the plot.
Scatter plot of monthly average levels of chlorophyll a, corrected for pheophytin, over time. If the time series included ten or more years of discrete observations, a significant (blue) or non-significant (magenta) trend line is also shown. Only laboratory-analyzed chlorophyll a (triangles) is included in the plot.
Table:

Monthly average chlorophyll a, corrected for pheophytin, increased by 0.16 µg/L per year, indicating a decrease in water clarity.

Activity Type Statistical Trend Sample Count Years with Data Period of Record Median Result Value Tau Sen Intercept Sen Slope P
Lab Increasing trend 8483 25 2002 - 2026 4.7 0.29038 3.95344 0.1604 0
Map showing location of discrete water quality sampling locations within the boundaries of Guana Tolomato Matanzas National Estuarine Research Reserve. The bubble size on the maps above reflect the amount of data available at each sampling site.
Map showing location of discrete water quality sampling locations within the boundaries of Guana Tolomato Matanzas National Estuarine Research Reserve. The bubble size on the maps above reflect the amount of data available at each sampling site.

Secchi Depth - Discrete

Scatter plot of monthly average Secchi depth over time. If the time series included ten or more years of discrete observations, a significant (blue) or non-significant (magenta) trend line is also shown. Secchi depth is only measured in the field (circles).
Scatter plot of monthly average Secchi depth over time. If the time series included ten or more years of discrete observations, a significant (blue) or non-significant (magenta) trend line is also shown. Secchi depth is only measured in the field (circles).
Table:

Secchi depth showed no detectable trend between 1999 and 2026.

Activity Type Statistical Trend Sample Count Years with Data Period of Record Median Result Value Tau Sen Intercept Sen Slope P
Field No detectable trend 3068 27 1999 - 2026 -0.8 0.04852 -0.87296 0.00167 0.3184
Map showing location of discrete water quality sampling locations within the boundaries of Guana Tolomato Matanzas National Estuarine Research Reserve. The bubble size on the maps above reflect the amount of data available at each sampling site.
Map showing location of discrete water quality sampling locations within the boundaries of Guana Tolomato Matanzas National Estuarine Research Reserve. The bubble size on the maps above reflect the amount of data available at each sampling site.

Colored Dissolved Organic Matter - Discrete

Scatter plot of monthly average colored dissolved organic matter (CDOM) over time. If the time series included ten or more years of discrete observations, a significant (blue) or non-significant (magenta) trend line is also shown. Only laboratory-analyzed CDOM (triangles) is included in the plot.
Scatter plot of monthly average colored dissolved organic matter (CDOM) over time. If the time series included ten or more years of discrete observations, a significant (blue) or non-significant (magenta) trend line is also shown. Only laboratory-analyzed CDOM (triangles) is included in the plot.
Table:

Monthly average colored dissolved organic matter decreased by 1.21 PCU per year, indicating an increase in water clarity.

Activity Type Statistical Trend Sample Count Years with Data Period of Record Median Result Value Tau Sen Intercept Sen Slope P
Lab Decreasing trend 2015 15 2007 - 2026 32 -0.2815 46.79471 -1.20645 0
Map showing location of discrete water quality sampling locations within the boundaries of Guana Tolomato Matanzas National Estuarine Research Reserve. The bubble size on the maps above reflect the amount of data available at each sampling site.
Map showing location of discrete water quality sampling locations within the boundaries of Guana Tolomato Matanzas National Estuarine Research Reserve. The bubble size on the maps above reflect the amount of data available at each sampling site.