Florida Keys National Marine SanctuarySteering Committee Meeting
Marathon 2/20/2013
Henry Briceño and Joseph N. BoyerSoutheast Environmental Research CenterFlorida International University, Miami, FL
Water Quality Monitoring
• Establish baseline information about FKNMS waters
• Document events, both chronic and episodic
• Assess trends or changes in WQ over time • Explain causes in WQ changes (internal & external driver)
• Provide relevant information for resource management decisions • Document compliance practices (regulatory)
•Educate public & stakeholders about water quality *
Monitoring Water Quality in FKNMS
EPA developed Strategic Targets for the Water Quality Monitoring Project
…”maintain the overall water quality of the near shore and coastal waters of the FKNMS according to 2005 baseline”…
– For reef sites• chlorophyll a should be ≤ 0.35 µ l-1
• vertical attenuation coefficient Kd ≤0.2 m-1
– For all monitoring sites in FKNMS• dissolved inorganic nitrogen DIN
≤0.75 µM• total phosphorus, TP ≤ 0.25 µM
DIN ≤ 0.75 µM TP ≤ 0.25 µMYear (≤ 0.010 ppm) (≤ 0.0077 ppm)
1995-05 1,778 of 2,367 (75.1%) 1,042 of 1,597 (65.2%) 7,826 of 10,254 (76.3%) 7,810 of 10,267 (76.1%)2006 196 of 225 (87.1%) 199 of 225 (88.4%) 432 of 990 (43.6%) 316 of 995 (31.8%)2007 198 of 226 (87.6%) 202 of 222 (91.0%) 549 of 993 (55.3%) 635 of 972 (65.3%)2008 177 of 228 (77.6%) 181 of 218 (83.0%) 836 of 1,000 (83.6%) 697 of 1,004 (69.4%)2009 208 of 228 (91.2%) 189 of 219 (86.3%) 858 of 1,003 (85.5%) 869 0f 1,004 (86.6%)2010 170 of 227 (74.9%) 176 of 206 (85.4%) 843 of 1,000 (84.3%) 738 of 1,003 (73.6%)2011 162 of 229 (70.7%) 150 of 207 (72,5%) 738 of 922 (80.0%) 844 of 923 (91.4%)
CHLA ≤ 0.35 ug l-1 Kd ≤ 0.20 m-1
All Stations (except Shelf)Reef Stations
EPA WQPP Water Quality Targets
Trend Analysis
• Simplest approach– Slope of linear regression for each variable at each
station – POR 1995-2011– Significance level set at p<0.10
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
Jan-
93
Oct
-95
Jul-9
8
Apr-0
1
Jan-
04
Oct
-06
Jul-0
9
Apr-1
2
Dec
-14
Increases in BlueDeclines in White
24.224.424.624.825.025.225.425.625.8
-83.5 -83.0 -82.5 -82.0 -81.5 -81.0 -80.5 -80.0 -79.5
Latit
ude
Longitude
Slope DIN S
24.224.424.624.825.025.225.425.625.8
-83.5 -83.0 -82.5 -82.0 -81.5 -81.0 -80.5 -80.0 -79.5
Latit
ude
Longitude
DIN S significantSurface DIN Tendency Surface DIN Significant Trend
24.224.424.624.825.025.225.425.625.8
-83.5 -83.0 -82.5 -82.0 -81.5 -81.0 -80.5 -80.0 -79.5
Latit
ude
Longitude
Slope TP S
24.224.424.624.825.025.225.425.625.8
-83.5 -83.0 -82.5 -82.0 -81.5 -81.0 -80.5 -80.0 -79.5
Latit
ude
Longitude
TP S significantSurface TP Tendency Surface TP Significant Trend
mg L-1 y-1
3.25E-04-7.52E-04
Pennikamp G27Tripod Bank
Tripod BankBamboo Banks
TP has not changed a lot. It declined along west Shelf..a couple of stations increased!!
DIN increased in Tortugas and Marquesas..a couple of Sluiceways stations increased!!
24.224.424.624.825.025.225.425.625.8
-83.5 -83.0 -82.5 -82.0 -81.5 -81.0 -80.5 -80.0 -79.5
Latit
ude
Longitude
Slope CHLA
24.224.424.624.825.025.225.425.625.8
-83.5 -83.0 -82.5 -82.0 -81.5 -81.0 -80.5 -80.0 -79.5
Latit
ude
Longitude
CHLA significant
ug L-1 y-1
7.72E-02-7.20E-02
Channel Key Pass
24.224.424.624.825.025.225.425.625.8
-83.5 -83.0 -82.5 -82.0 -81.5 -81.0 -80.5 -80.0 -79.5
Latit
ude
Longitude
slope Kd Trend
24.224.424.624.825.025.225.425.625.8
-83.5 -83.0 -82.5 -82.0 -81.5 -81.0 -80.5 -80.0 -79.5
Latit
ude
Longitude
slope Kd Tendency
m-1 y-1
-2.8E-021.4E-01
CHLa tends increase along northeast Shelf and SluicewaysCHLa trend increases along northeast Shelf & Sluiceways and declines in Backcountry
Kd increased in eastern Shelf and stayed practically the same in Sanctuary
24.224.424.624.825.025.225.425.625.8
-83.5 -83.0 -82.5 -82.0 -81.5 -81.0 -80.5 -80.0 -79.5
Latit
ude
Longitude
Slope TOC S
24.224.424.624.825.025.225.425.625.8
-83.5 -83.0 -82.5 -82.0 -81.5 -81.0 -80.5 -80.0 -79.5
Latit
ude
Longitude
TOC S significant
mg L-1 y-1
1.57E-02-1.63E-01
24.224.424.624.825.025.225.425.625.8
-83.5 -83.0 -82.5 -82.0 -81.5 -81.0 -80.5 -80.0 -79.5
Latit
ude
Longitude
TOC B significant
24.224.424.624.825.025.225.425.625.8
-83.5 -83.0 -82.5 -82.0 -81.5 -81.0 -80.5 -80.0 -79.5
Latit
ude
Longitude
Slope TOC B
mg L-1 y-1
-3.45E-02-1.59E-01
Surface TOC Tendency Surface TOC Significant Trend
Bottom TOC Tendency Bottom TOC Significant Trend
TOC has consistently declined region wide in both, surface and bottom samples
24.224.424.624.825.025.225.425.625.8
-83.5 -83.0 -82.5 -82.0 -81.5 -81.0 -80.5 -80.0 -79.5
Latit
ude
Longitude
Slope TN S
24.224.424.624.825.025.225.425.625.8
-83.5 -83.0 -82.5 -82.0 -81.5 -81.0 -80.5 -80.0 -79.5
Latit
ude
Longitude
TN S significant
mg L-1 y-1
9.41E-03-9.89E-03
24.224.424.624.825.025.225.425.625.8
-83.5 -83.0 -82.5 -82.0 -81.5 -81.0 -80.5 -80.0 -79.5
Latit
ude
Longitude
TN B significant
24.224.424.624.825.025.225.425.625.8
-83.5 -83.0 -82.5 -82.0 -81.5 -81.0 -80.5 -80.0 -79.5
Latit
ude
Longitude
Slope TN B
mg L-1 y-1
1.10E-02-4.72E-03
Surface TN Tendency Surface TN Significant Trend
Bottom TN Tendency Bottom TN Significant Trend
TN has increased, especially in Tortugas and Lower and Upper Keys…!!!!!
2011
Surface Salinity(PSU)
Jan 2011
Surface Salinity(PSU)
May 2011
Surface Salinity(PSU)
Aug 2011
Surface Salinity(PSU)
Oct 2011
Surface TOC (mg l-1)Jan 2011
Surface TOC (mg l-1)May 2011
Surface TOC (mg l-1)Aug 2011
Surface TOC (mg l-1)Oct 2011
Surface DIN (mg l-1)Jan 2011
Surface DIN (mg l-1)May 2011
Surface DIN (mg l-1)Aug 2011
Surface DIN (mg l-1)Oct 2011
Surface TP (mg l-1)Jan 2011
Surface TP (mg l-1)May 2011
Surface TP (mg l-1)Aug 2011
Surface TP (mg l-1)Oct 2011
chla
Surface CHLa (µg l-1)Jan 2011
Surface CHLa (µg l-1)May 2011
Surface CHLa (µg l-1)Aug 2011
Surface CHLa (µg l-1)Oct 2011
Surface SiO2 (mg l-1)Jan 2011
Surface SiO2 (mg l-1)May 2011
Surface SiO2 (mg l-1)Aug 2011
Surface SiO2 (mg l-1)Oct 2011
Kd (m-1)Jan 2011
Kd (m-1)May 2011
Kd (m-1)Aug 2011
Kd (m-1)Oct 2011
Recent achievements….
Biogeochemical Segmentation of South Florida Coastal and Estuarine Waters
Developed with data generated
from monitoring WQ since 1991
Adopted by EPA and FDEP with minor changes
for derivation of Numeric
Nutrient Criteria
NOAA-IMPACT (Integrated Marine Protected Area Climate Tools) project is “ingesting” fixed-site data into IOOS and attempting to couple with remote sensing information.
NEW Proposal in preparation for NASA-ROSES
More work needs to be done with coupling monitoring with remote sensing technologies and coastal ocean observation systems
Henry Briceño and Joseph N. BoyerSoutheast Environmental Research CenterFlorida International University, Miami, FL
Thanks !!!....
Florida Keys National Marine SanctuarySteering Committee Meeting
Marathon, 2/20/2013
ADDITIONAL
0
5
10
15
20
25
Jan-
95Ja
n-96
Jan-
97Ja
n-98
Jan-
99Ja
n-00
Jan-
01Ja
n-02
Jan-
03Ja
n-04
Jan-
05Ja
n-06
Jan-
07Ja
n-08
Jan-
09Ja
n-10
Jan-
11
NO
X-B
Zcus
um
LK TOC-S
-8-6-4-20246
Jan-
95Ja
n-96
Jan-
97Ja
n-98
Jan-
99Ja
n-00
Jan-
01Ja
n-02
Jan-
03Ja
n-04
Jan-
05Ja
n-06
Jan-
07Ja
n-08
Jan-
09Ja
n-10
Jan-
11
NO
X-B
Zcus
um
LK TN-S
-10-8-6-4-2024
Jan-
95Ja
n-96
Jan-
97Ja
n-98
Jan-
99Ja
n-00
Jan-
01Ja
n-02
Jan-
03Ja
n-04
Jan-
05Ja
n-06
Jan-
07Ja
n-08
Jan-
09Ja
n-10
Jan-
11
NO
X-B
Zcus
um
LK TP-S
-202468
1012
Jan-
95Ja
n-96
Jan-
97Ja
n-98
Jan-
99Ja
n-00
Jan-
01Ja
n-02
Jan-
03Ja
n-04
Jan-
05Ja
n-06
Jan-
07Ja
n-08
Jan-
09Ja
n-10
Jan-
11
NO
X-B
Zcus
um
LK CHLA
-15
-10
-5
0
5
10Ja
n-95
Jan-
96Ja
n-97
Jan-
98Ja
n-99
Jan-
00Ja
n-01
Jan-
02Ja
n-03
Jan-
04Ja
n-05
Jan-
06Ja
n-07
Jan-
08Ja
n-09
Jan-
10Ja
n-11
NO
X-B
Zcus
umLK DO-S
-15
-10
-5
0
5
10
Jan-
95Ja
n-96
Jan-
97Ja
n-98
Jan-
99Ja
n-00
Jan-
01Ja
n-02
Jan-
03Ja
n-04
Jan-
05Ja
n-06
Jan-
07Ja
n-08
Jan-
09Ja
n-10
Jan-
11
NO
X-B
Zcus
um
LK %SAT-S
-4-202468
10
Jan-
95Ja
n-96
Jan-
97Ja
n-98
Jan-
99Ja
n-00
Jan-
01Ja
n-02
Jan-
03Ja
n-04
Jan-
05Ja
n-06
Jan-
07Ja
n-08
Jan-
09Ja
n-10
Jan-
11
NO
X-B
Zcus
um
LK Kd
Trend Analysis with Cusum charts
Top Related