25 June 2005 Kim Hanes SFWMD 8894 Belvedere Road West Palm Beach, FL 33411

Southeast Environmental Research Center OE-148 Florida International University, Miami, FL 33199 305-348-3095, 305-348-4096 fax, http://serc.fiu.edu

Re: South Florida Coastal Water Quality Monitoring Network – 1-3/05 Quarterly Report (C-15397)

Dear Mr. Hanes:

This letter serves to transmit the South Florida Coastal Water Quality Monitoring Network Quarterly Report as per our SFWMD/SERC Cooperative Agreement #C-15397. This report consists of this letter along with corresponding tables and figures.

Project Background

This report includes water quality data collected monthly during the annual period of record (POR) Jan. – Mar. 2005 from 28 stations in Florida Bay, 22 stations in Whitewater Bay, 25 stations in Ten Thousand Islands, 25 stations in Biscayne Bay, and 28 stations in Cape Romano-Rookery Bay-Pine Island Sound. A total of 49 stations were also collected on the SW Florida Shelf on a quarterly basis. Figure 1 shows the location of the fixed sampling stations.

Water quality parameters monitored at each station include the dissolved nutrients nitrate + nitrite (NOx), nitrite (NO2), nitrate (NO3), ammonium (NH4), inorganic nitrogen (DIN), and soluble reactive phosphorus (SRP). Silicate (Si(OH)4) was analyzed at all stations on a quarterly basis in conjunction with SW Shelf sampling. Total concentrations of nitrogen (TN), organic nitrogen (TON), phosphorus (TP), and organic carbon (TOC) were also measured. All concentrations for each of these parameters are reported as parts per million (ppm) except where noted.

Biological parameters monitored included chlorophyll a (µg l-1) and alkaline phosphatase activity (APA; µM hr-1). Field parameters measured at both surface and bottom of the water column include salinity, dissolved oxygen (DO; mg l-1), and temperature (oC). Turbidity (NTU) of the surface water was also measured. Data Results

A previous spatial analysis of data from Florida Bay resulted in the delineation of 3 groups of stations which have robust similarities in water quality (Fig. 2). We have argued that these spatially contiguous groups of stations are the result of similar loading and processing of materials, hence we call them 'zones of similar influence'. The Eastern Bay zone (FBE) acts most like a 'conventional' estuary in that it has a quasi-longitudinal salinity gradient caused by the mixing of freshwater runoff with seawater. In contrast, the Central Bay (FBC) is a hydrographically isolated area with low and infrequent terrestrial freshwater input, a long water residence time, and high evaporative potential. The Western Bay zone (FBW) is the most influenced by the Gulf of Mexico tides and is also isolated from direct overland freshwater sources. Station #7 - Highway Creek did not cluster out with any of the Florida Bay stations and was considered separately.

Using the same statistical approach as above, the TTI-WWB complex was partitioned into 6 distinct zones of similar water quality (Fig. 3). The first cluster was composed of 13 stations in and around the Shark, Harney, Broad, and Lostmans Rivers and is called the Mangrove River (MR) group. This cluster also included a sampling station just off the Faka Union Canal. The second cluster was made up of the 8 stations enclosed within Whitewater Bay proper (WWB). Twelve stations situated mostly in and around the coastal islands of TTI-WWB formed the Gulf Island group (GI). The water quality characteristics at the Coot Bay site were sufficiently different so as to be a cluster of its own. The next cluster contained the northernmost 2 stations in the Blackwater River estuary (BLK). Finally, the Inland Wilderness Waterway zone (IWW) included 11 stations distributed throughout the inside passage as well as the Chatham River and the station off Everglades City.

Biscayne Bay was partitioned into 6 distinct ZSI using the above statistical analysis. The first cluster was composed of 2 stations closest to the shore in the south Bay (Fig. 4); they were called the Alongshore group (AS). These are stations most influenced by the Goulds, Military and Mowry Canals. The second cluster was made up of the 5 stations farther from the coast called Inshore (IS). Thirteen stations situated mostly in the bay proper were called the main Bay (MAIN) group. The next cluster contained 3 stations situated in areas of great tidal exchange (ocean channel, not shown). Two stations in Card Sound grouped together SCARD. For purposes of this report, the stations added to the area north of the Rickenbacker Causeway are defined, a priori, as a distinct cluster, North Bay (NBAY).

The above statistical analysis objectively classified the 49 Shelf sampling sites into 3 zones having similar water quality (Fig. 5). The first cluster was composed of only 2 stations which were closest to the shore off Cape Sable; they were called the SHARK group, after the Shark River, the main source of freshwater to the region. The second cluster was made up of the 7 more northerly stations nearest the coast and called SHOAL. The remaining stations were called the SHELF group.

Sampling in the Rookery Bay area began Jan. 1999, so we now have 5 years of data available. But because of the very heterogeneous nature of the area, we will continue to use generally accepted geomorphological characteristics to group the stations (Fig. 6). These groupings are Cocohatchee River (COCO), Estero Bay (EST), Cape Romano-Marco Island (MARC), Naples Bay (NPL), Pine Island Sound (PIS), Rookery Bay (RB), and San Carlos Bay (SCB).

Data are also reported as box-and-whiskers plots (Figs. 7-28). The center horizontal line in the box is the median of the data, the top and bottom of the box are the 25th and 75th percentiles (quartiles), and the ends of the whiskers are the 5th and 95th percentiles.

Summary statistics of all water quality parameters by ecosystem are shown in Table 1. The median was chosen because it is a more accurate measure of central tendency in non-normally distributed water quality data. The range is expressed as the minimum (Min.) and maximum (Max.) values for the POR, and n is the number of data points used in the analysis.

If you have any questions about the content of this report, please do not hesitate to contact me at 305- 348-4076 or [email protected].

Sincerely,

Joseph N. Boyer, Ph.D. Associate Director and Scientist

Figure 1: All fixed water quality stations funded by this SFWMD project.

Florida Bay Water Quality Zones 25.4

25.2

25.0

24.8 -81.2 -81.0 -80.8 -80.6 -80.4 -80.2

Eastern Bay ( ), Central Bay, ( ), Western Bay ( )

Figure 2. Florida Bay zones. 26.0

75Blackwater River 74 70 73 72 71 69Faka Union Canal 68 64 67 65 66 51 535455 Gulf Islands 52 56Inner Waterway 60 585761 Everglades59 City 62 63 30 29 31 32 33 35 34 25.5 Mangrove 37 Rivers 36 38 39 40 41 4244 Whitewater 45 Bay 43 46 47 4849

50Coot Bay

25.0 -81.5 -81.0 Mangrove Rivers, Whitewater Bay, Gulf Islands, Coot Bay, Blackwater River, Inner Waterway

Figure 3. WWB-TTI water quality zones.

26.0

134

133

132 131

130 Miami 129

128 126

127 104 103 109 108 102 111 110 25.5 112 101 124

123 113 122 116

121

135

-80.4 -80.3 -80.2 -80.1 Alongshore, Inshore, Main Bay, North Bay, South Card Sound

Figure 4. Biscayne Bay water quality zones.

26.0

363 364

362 365 385 386 361 366 384387 25.5 360 367 383 388

359 368 382 389

369 358 381 390

357 370 380 391

356 371 379 392 399

355 372 378 393 398 25.0 354 373 377 394 397 395 353 374 376 396 352 375

351

24.5 -82.0 -81.5 -81.0

Shark, Shoal, Shelf

Figure 5. SW Florida Shelf water quality zones. 26.7

26.6

Pine Island Sound 26.5

San Carlos Bay 26.4 Estero Bay

26.3

26.2

26.1

Naples Bay

26.0 Rookery Bay

25.9 Marco Island

25.8 -82.3 -82.2 -82.1 -82.0 -81.9 -81.8 -81.7 -81.6

Figure 6. SW estuaries. Eastern Florida Bay Zone 60

50 Salinity 40 30 20 10 0 1992-03 1992-08 1993-01 1993-06 1993-11 1994-04 1994-09 1995-03 1995-08 1996-01 1996-06 1996-11 1997-04 1997-09 1998-02 1998-07 1999-01 1999-06 1999-11 2000-04 2000-09 2001-02 2001-07 2001-12 2002-05 2002-10 2003-03 2003-08 2004-01 2004-06 2004-11 1989-06 1990-01 1990-06 1990-11 1991-04 1991-10 1.0 DIN 0.8

0.6 ppm 0.4

0.2

0.0 1999-06 1999-11 2000-04 2000-09 2001-02 2001-07 2001-12 2002-05 2002-10 2003-03 2003-08 2004-01 2004-06 2004-11 1989-06 1990-01 1990-06 1990-11 1991-04 1991-10 1992-03 1992-08 1993-01 1993-06 1993-11 1994-04 1994-09 1995-03 1995-08 1996-01 1996-06 1996-11 1997-04 1997-09 1998-02 1998-07 1999-01 0.04 TP 0.03

ppm 0.02

0.01

0.00 1999-03 1999-07 1999-11 2000-03 2000-07 2000-11 2001-03 2001-07 2001-11 2002-03 2002-07 2002-11 2003-03 2003-07 2003-11 2004-03 2004-07 2004-11 2005-03 1989-06 1989-12 1990-04 1990-08 1990-12 1991-04 1991-09 1992-01 1992-05 1992-09 1993-01 1993-05 1993-09 1994-01 1994-05 1994-09 1995-02 1995-06 1995-10 1996-02 1996-06 1996-10 1997-02 1997-06 1997-10 1998-02 1998-06 1998-11 7.0 6.0 CHLA 5.0 4.0

ug/l 3.0 2.0 1.0 0.0 1989-06 1990-01 1990-06 1990-11 1991-04 1991-10 1992-03 1992-08 1993-01 1993-06 1993-11 1994-04 1994-09 1995-03 1995-08 1996-01 1996-06 1996-11 1997-04 1997-09 1998-02 1998-07 1999-01 1999-06 1999-11 2000-04 2000-09 2001-02 2001-07 2001-12 2002-05 2002-10 2003-03 2003-08 2004-01 2004-06 2004-11 Figure 7. Box-and-whisker plots of water quality in Eastern Florida Bay by survey. Central Florida Bay Zone 70 60 Salinity 50 40 30 20 10 0 1989-06 1990-01 1990-06 1990-11 1991-04 1991-10 1992-03 1992-08 1993-01 1993-06 1993-11 1994-04 1994-09 1995-03 1995-08 1996-01 1996-06 1996-11 1997-04 1997-09 1998-02 1998-07 1999-01 1999-06 1999-11 2000-04 2000-09 2001-02 2001-07 2001-12 2002-05 2002-10 2003-03 2003-08 2004-01 2004-06 2004-11 1.0 DIN 0.8

0.6

ppm 0.4

0.2

0.0 1999-01 1999-06 1999-11 2000-04 2000-09 2001-02 2001-07 2001-12 2002-05 2002-10 2003-03 2003-08 2004-01 2004-06 2004-11 1989-06 1990-01 1990-06 1990-11 1991-04 1991-10 1992-03 1992-08 1993-01 1993-06 1993-11 1994-04 1994-09 1995-03 1995-08 1996-01 1996-06 1996-11 1997-04 1997-09 1998-02 1998-07 0.12 TP 0.10

0.08 0.06 ppm 0.04 0.02

ug/l 15 10 5 0 1989-06 1990-01 1990-06 1990-11 1991-04 1991-10 1992-03 1992-08 1993-01 1993-06 1993-11 1994-04 1994-09 1995-03 1995-08 1996-01 1996-06 1996-11 1997-04 1997-09 1998-02 1998-07 1999-01 1999-06 1999-11 2000-04 2000-09 2001-02 2001-07 2001-12 2002-05 2002-10 2003-03 2003-08 2004-01 2004-06 2004-11 Figure 8. Box-and-whisker plots of water quality in Central Florida Bay by survey. Western Florida Bay Zone 60

50 Salinity 40 30

20 10 0 1989-06 1990-01 1990-06 1990-11 1991-04 1991-10 1992-03 1992-08 1993-01 1993-06 1993-11 1994-04 1994-09 1995-03 1995-08 1996-01 1996-06 1996-11 1997-04 1997-09 1998-02 1998-07 1999-01 1999-06 1999-11 2000-04 2000-09 2001-02 2001-07 2001-12 2002-05 2002-10 2003-03 2003-08 2004-01 2004-06 2004-11 0.35 DIN 0.30 0.25 0.20 ppm 0.15 0.10 0.05 0.00 1999-06 1999-11 2000-04 2000-09 2001-02 2001-07 2001-12 2002-05 2002-10 2003-03 2003-08 2004-01 2004-06 2004-11 1989-06 1990-01 1990-06 1990-11 1991-04 1991-10 1992-03 1992-08 1993-01 1993-06 1993-11 1994-04 1994-09 1995-03 1995-08 1996-01 1996-06 1996-11 1997-04 1997-09 1998-02 1998-07 1999-01 0.25 TP 0.20

0.15 ppm 0.10

0.05

15 ug/l 10

0 1989-06 1990-01 1990-06 1990-11 1991-04 1991-10 1992-03 1992-08 1993-01 1993-06 1993-11 1994-04 1994-09 1995-03 1995-08 1996-01 1996-06 1996-11 1997-04 1997-09 1998-02 1998-07 1999-01 1999-06 1999-11 2000-04 2000-09 2001-02 2001-07 2001-12 2002-05 2002-10 2003-03 2003-08 2004-01 2004-06 2004-11 Figure 9. Box-and-whisker plots of water quality in Western Florida Bay by survey. Whitewater Bay Zone 40 35 Salinity 30 25 20 15 10 5 0 1994-10 1995-03 1995-08 1996-01 1996-06 1996-11 1997-05 1997-10 1998-03 1998-08 1999-02 1999-07 1999-12 2000-05 2000-10 2001-03 2001-10 2002-03 2002-08 2003-01 2003-06 2003-11 2004-04 2004-09 2005-02 1992-09 1993-02 1993-07 1993-12 1994-05 0.5 DIN 0.4

0.3

ppm 0.2

0.1

0.0 2000-05 2000-10 2001-03 2001-10 2002-03 2002-08 2003-01 2003-06 2003-11 2004-04 2004-09 2005-02 1992-09 1993-02 1993-07 1993-12 1994-05 1994-10 1995-03 1995-08 1996-01 1996-06 1996-11 1997-05 1997-10 1998-03 1998-08 1999-02 1999-07 1999-12 0.10 TP 0.08

0.06 ppm 0.04

0.02

0.00 2000-03 2000-07 2000-11 2001-03 2001-09 2002-01 2002-05 2002-09 2003-01 2003-05 2003-09 2004-01 2004-05 2004-09 2005-01 1992-09 1993-01 1993-05 1993-09 1994-01 1994-05 1994-09 1995-01 1995-05 1995-09 1996-01 1996-05 1996-09 1997-02 1997-06 1997-10 1998-02 1998-06 1998-11 1999-03 1999-07 1999-11 30

25 CHLA

15 ug/l 10

0 1992-09 1993-02 1993-07 1993-12 1994-05 1994-10 1995-03 1995-08 1996-01 1996-06 1996-11 1997-05 1997-10 1998-03 1998-08 1999-02 1999-07 1999-12 2000-05 2000-10 2001-03 2001-10 2002-03 2002-08 2003-01 2003-06 2003-11 2004-04 2004-09 2005-02 Figure 10. Box-and-whisker plots of water quality in WWB-TTI by survey. Mangrove Rivers Zone 45 40 Salinity 35 30 25 20 15 10 5 0 1992-09 1993-02 1993-07 1993-12 1994-05 1994-10 1995-03 1995-08 1996-01 1996-06 1996-11 1997-04 1997-09 1998-02 1998-07 1999-01 1999-06 1999-11 2000-04 2000-09 2001-02 2001-07 2001-12 2002-05 2002-10 2003-03 2003-08 2004-01 2004-06 2004-11 0.5 DIN 0.4

0.3

ppm 0.2

0.1

0.0 2000-04 2000-09 2001-02 2001-07 2001-12 2002-05 2002-10 2003-03 2003-08 2004-01 2004-06 2004-11 1992-09 1993-02 1993-07 1993-12 1994-05 1994-10 1995-03 1995-08 1996-01 1996-06 1996-11 1997-04 1997-09 1998-02 1998-07 1999-01 1999-06 1999-11 0.12 TP 0.10 0.08 0.06 ppm 0.04 0.02

0.00 2000-06 2000-10 2001-02 2001-06 2001-10 2002-02 2002-06 2002-10 2003-02 2003-06 2003-10 2004-02 2004-06 2004-10 2005-02 1992-09 1993-01 1993-05 1993-09 1994-01 1994-05 1994-09 1995-01 1995-05 1995-09 1996-01 1996-05 1996-09 1997-01 1997-05 1997-09 1998-01 1998-05 1998-10 1999-02 1999-06 1999-10 2000-02 20 CHLA 15

10 ug/l

0 1992-09 1993-02 1993-07 1993-12 1994-05 1994-10 1995-03 1995-08 1996-01 1996-06 1996-11 1997-04 1997-09 1998-02 1998-07 1999-01 1999-06 1999-11 2000-04 2000-09 2001-02 2001-07 2001-12 2002-05 2002-10 2003-03 2003-08 2004-01 2004-06 2004-11 Figure 11. Box-and-whisker plots of water quality in WWB-TTI by survey. Gulf Islands Zone 45 40 Salinity 35 30 25 20 15 10 5 0 1992-09 1993-02 1993-07 1993-12 1994-05 1994-10 1995-03 1995-08 1996-01 1996-06 1996-11 1997-04 1997-09 1998-02 1998-07 1999-01 1999-06 1999-11 2000-04 2000-09 2001-02 2001-07 2001-12 2002-05 2002-10 2003-03 2003-08 2004-01 2004-06 2004-11 0.25 DIN 0.20

0.15

ppm 0.10

0.05

0.00 2000-04 2000-09 2001-02 2001-07 2001-12 2002-05 2002-10 2003-03 2003-08 2004-01 2004-06 2004-11 1992-09 1993-02 1993-07 1993-12 1994-05 1994-10 1995-03 1995-08 1996-01 1996-06 1996-11 1997-04 1997-09 1998-02 1998-07 1999-01 1999-06 1999-11 0.20 TP 0.15

0.10 ppm

0.05

10 ug/l

0 1992-09 1993-02 1993-07 1993-12 1994-05 1994-10 1995-03 1995-08 1996-01 1996-06 1996-11 1997-04 1997-09 1998-02 1998-07 1999-01 1999-06 1999-11 2000-04 2000-09 2001-02 2001-07 2001-12 2002-05 2002-10 2003-03 2003-08 2004-01 2004-06 2004-11 Figure 12. Box-and-whisker plots of water quality in WWB-TTI by survey. Inner Waterway Zone 45 40 Salinity 35 30 25 20 15 10 5 0 1994-09 1995-02 1995-07 1996-01 1996-08 1997-01 1997-06 1997-11 1998-04 1998-10 1999-03 1999-08 2000-01 2000-06 2000-11 2001-04 2001-09 2002-02 2002-07 2002-12 2003-05 2003-10 2004-03 2004-08 2005-01 0.30 DIN 0.25 0.20 0.15 ppm 0.10 0.05 0.00 2001-04 2001-09 2002-02 2002-07 2002-12 2003-05 2003-10 2004-03 2004-08 2005-01 1994-09 1995-02 1995-07 1996-01 1996-08 1997-01 1997-06 1997-11 1998-04 1998-10 1999-03 1999-08 2000-01 2000-06 2000-11 0.20 TP 0.15

0.10 ppm

0.05

0.00 2001-04 2001-09 2002-02 2002-07 2002-12 2003-05 2003-10 2004-03 2004-08 2005-01 1994-09 1995-02 1995-07 1996-01 1996-08 1997-01 1997-06 1997-11 1998-04 1998-10 1999-03 1999-08 2000-01 2000-06 2000-11 25 CHLA 20

15 ug/l 10

0 1994-09 1995-02 1995-07 1996-01 1996-08 1997-01 1997-06 1997-11 1998-04 1998-10 1999-03 1999-08 2000-01 2000-06 2000-11 2001-04 2001-09 2002-02 2002-07 2002-12 2003-05 2003-10 2004-03 2004-08 2005-01 Figure 13. Box-and-whisker plots of water quality in WWB-TTI by survey. Blackwater River Zone 40 35 Salinity 30 25 20 15 10 5 0 1994-09 1995-02 1995-07 1996-02 1996-09 1997-02 1997-07 1997-12 1998-05 1998-11 1999-04 1999-09 2000-02 2000-07 2000-12 2001-05 2001-10 2002-03 2002-08 2003-01 2003-06 2003-11 2004-04 2004-09 2005-02 0.30 DIN 0.25 0.20 0.15 ppm 0.10 0.05 0.00 2001-05 2001-10 2002-03 2002-08 2003-01 2003-06 2003-11 2004-04 2004-09 2005-02 1994-09 1995-02 1995-07 1996-02 1996-09 1997-02 1997-07 1997-12 1998-05 1998-11 1999-04 1999-09 2000-02 2000-07 2000-12 0.25 TP 0.20

0.15 ppm 0.10

0.05

0.00 2001-05 2001-10 2002-03 2002-08 2003-01 2003-06 2003-11 2004-04 2004-09 2005-02 1994-09 1995-02 1995-07 1996-02 1996-09 1997-02 1997-07 1997-12 1998-05 1998-11 1999-04 1999-09 2000-02 2000-07 2000-12 20 CHLA 15

10 ug/l

0 1994-09 1995-02 1995-07 1996-02 1996-09 1997-02 1997-07 1997-12 1998-05 1998-11 1999-04 1999-09 2000-02 2000-07 2000-12 2001-05 2001-10 2002-03 2002-08 2003-01 2003-06 2003-11 2004-04 2004-09 2005-02 Figure 14. Box-and-whisker plots of water quality in WWB-TTI by survey. Alongshore Zone 45 40 Salinity 35 30 25 20 15 10 5 0 1993-09 1993-12 1994-03 1994-06 1994-09 1994-12 1995-03 1995-06 1995-09 1995-12 1996-03 1996-06 1996-09 1996-12 1997-03 1997-06 1997-09 1997-12 1998-03 1998-06 1998-10 1999-01 1999-04 1999-07 1999-10 2000-01 2000-04 2000-07 2000-10 2001-01 2001-05 2001-08 2001-11 2002-02 2002-05 2002-08 2002-11 2003-02 2003-05 2003-08 2003-11 2004-02 2004-05 2004-08 2004-11 2005-02 1.4 DIN 1.2 1.0 0.8

ppm 0.6 0.4 0.2 0.0 2000-10 2001-01 2001-05 2001-08 2001-11 2002-02 2002-05 2002-08 2002-11 2003-02 2003-05 2003-08 2003-11 2004-02 2004-05 2004-08 2004-11 2005-02 1993-09 1993-12 1994-03 1994-06 1994-09 1994-12 1995-03 1995-06 1995-09 1995-12 1996-03 1996-06 1996-09 1996-12 1997-03 1997-06 1997-09 1997-12 1998-03 1998-06 1998-10 1999-01 1999-04 1999-07 1999-10 2000-01 2000-04 2000-07 0.04 TP 0.03

0.02 ppm

0.01

0.00 2000-10 2001-01 2001-05 2001-08 2001-11 2002-02 2002-05 2002-08 2002-11 2003-02 2003-05 2003-08 2003-11 2004-02 2004-05 2004-08 2004-11 2005-02 1993-09 1993-12 1994-03 1994-06 1994-09 1994-12 1995-03 1995-06 1995-09 1995-12 1996-03 1996-06 1996-09 1996-12 1997-03 1997-06 1997-09 1997-12 1998-03 1998-06 1998-10 1999-01 1999-04 1999-07 1999-10 2000-01 2000-04 2000-07 3.0

2.5 CHLA 2.0

1.5 ug/l 1.0 0.5

0.0 1993-09 1993-12 1994-03 1994-06 1994-09 1994-12 1995-03 1995-06 1995-09 1995-12 1996-03 1996-06 1996-09 1996-12 1997-03 1997-06 1997-09 1997-12 1998-03 1998-06 1998-10 1999-01 1999-04 1999-07 1999-10 2000-01 2000-04 2000-07 2000-10 2001-01 2001-05 2001-08 2001-11 2002-02 2002-05 2002-08 2002-11 2003-02 2003-05 2003-08 2003-11 2004-02 2004-05 2004-08 2004-11 2005-02 Figure 15. Box-and-whisker plots of water quality in Biscayne Bay by survey. Inshore Zone 45 40 Salinity 35 30 25 20 15 10 5 0 1993-09 1993-12 1994-03 1994-06 1994-09 1994-12 1995-03 1995-06 1995-09 1995-12 1996-03 1996-06 1996-09 1996-12 1997-03 1997-06 1997-09 1997-12 1998-03 1998-06 1998-10 1999-01 1999-04 1999-07 1999-10 2000-01 2000-04 2000-07 2000-10 2001-01 2001-05 2001-08 2001-11 2002-02 2002-05 2002-08 2002-11 2003-02 2003-05 2003-08 2003-11 2004-02 2004-05 2004-08 2004-11 2005-02 0.9 0.8 DIN 0.7 0.6 0.5

ppm 0.4 0.3 0.2 0.1 0.0 2000-10 2001-01 2001-05 2001-08 2001-11 2002-02 2002-05 2002-08 2002-11 2003-02 2003-05 2003-08 2003-11 2004-02 2004-05 2004-08 2004-11 2005-02 1993-09 1993-12 1994-03 1994-06 1994-09 1994-12 1995-03 1995-06 1995-09 1995-12 1996-03 1996-06 1996-09 1996-12 1997-03 1997-06 1997-09 1997-12 1998-03 1998-06 1998-10 1999-01 1999-04 1999-07 1999-10 2000-01 2000-04 2000-07 0.04 TP 0.03

0.02 ppm

0.01

ug/l 3.0 2.0 1.0 0.0 1993-09 1993-12 1994-03 1994-06 1994-09 1994-12 1995-03 1995-06 1995-09 1995-12 1996-03 1996-06 1996-09 1996-12 1997-03 1997-06 1997-09 1997-12 1998-03 1998-06 1998-10 1999-01 1999-04 1999-07 1999-10 2000-01 2000-04 2000-07 2000-10 2001-01 2001-05 2001-08 2001-11 2002-02 2002-05 2002-08 2002-11 2003-02 2003-05 2003-08 2003-11 2004-02 2004-05 2004-08 2004-11 2005-02 Figure 16. Box-and-whisker plots of water quality in Biscayne Bay by survey. Main Bay Zone 45 40 Salinity 35 30 25 20 15 10 5 0 1993-09 1993-12 1994-03 1994-06 1994-09 1994-12 1995-03 1995-06 1995-09 1995-12 1996-03 1996-06 1996-09 1996-12 1997-03 1997-06 1997-09 1997-12 1998-03 1998-06 1998-10 1999-01 1999-04 1999-07 1999-10 2000-01 2000-04 2000-07 2000-10 2001-01 2001-05 2001-08 2001-11 2002-02 2002-05 2002-08 2002-11 2003-02 2003-05 2003-08 2003-11 2004-02 2004-05 2004-08 2004-11 2005-02 0.5 DIN 0.4

0.3

ppm 0.2

0.1

0.0 2000-10 2001-01 2001-05 2001-08 2001-11 2002-02 2002-05 2002-08 2002-11 2003-02 2003-05 2003-08 2003-11 2004-02 2004-05 2004-08 2004-11 2005-02 1993-09 1993-12 1994-03 1994-06 1994-09 1994-12 1995-03 1995-06 1995-09 1995-12 1996-03 1996-06 1996-09 1996-12 1997-03 1997-06 1997-09 1997-12 1998-03 1998-06 1998-10 1999-01 1999-04 1999-07 1999-10 2000-01 2000-04 2000-07 0.05 TP 0.04

0.03 ppm 0.02

0.01

ug/l 2.0 1.5 1.0 0.5 0.0 1993-09 1993-12 1994-03 1994-06 1994-09 1994-12 1995-03 1995-06 1995-09 1995-12 1996-03 1996-06 1996-09 1996-12 1997-03 1997-06 1997-09 1997-12 1998-03 1998-06 1998-10 1999-01 1999-04 1999-07 1999-10 2000-01 2000-04 2000-07 2000-10 2001-01 2001-05 2001-08 2001-11 2002-02 2002-05 2002-08 2002-11 2003-02 2003-05 2003-08 2003-11 2004-02 2004-05 2004-08 2004-11 2005-02 Figure 17. Box-and-whisker plots of water quality in Biscayne Bay by survey. South Card Sound Zone 45 40 Salinity 35 30 25 20 15 10 5 0 1993-10 1994-01 1994-04 1994-07 1994-10 1995-01 1995-04 1995-07 1995-10 1996-01 1996-04 1996-07 1996-10 1997-01 1997-04 1997-07 1997-10 1998-01 1998-04 1998-07 1998-11 1999-02 1999-05 1999-08 1999-11 2000-02 2000-05 2000-08 2000-11 2001-03 2001-06 2001-09 2001-12 2002-03 2002-06 2002-09 2002-12 2003-03 2003-06 2003-09 2003-12 2004-03 2004-06 2004-09 2004-12 2005-03 0.25 DIN 0.20

0.15 ppm 0.10

0.05

0.00 2000-08 2000-11 2001-03 2001-06 2001-09 2001-12 2002-03 2002-06 2002-09 2002-12 2003-03 2003-06 2003-09 2003-12 2004-03 2004-06 2004-09 2004-12 2005-03 1993-10 1994-01 1994-04 1994-07 1994-10 1995-01 1995-04 1995-07 1995-10 1996-01 1996-04 1996-07 1996-10 1997-01 1997-04 1997-07 1997-10 1998-01 1998-04 1998-07 1998-11 1999-02 1999-05 1999-08 1999-11 2000-02 2000-05 0.03 TP

0.02 ppm 0.01

0.00 2000-11 2001-03 2001-06 2001-09 2001-12 2002-03 2002-06 2002-09 2002-12 2003-03 2003-06 2003-09 2003-12 2004-03 2004-06 2004-09 2004-12 2005-03 1993-10 1994-01 1994-04 1994-07 1994-10 1995-01 1995-04 1995-07 1995-10 1996-01 1996-04 1996-07 1996-10 1997-01 1997-04 1997-07 1997-10 1998-01 1998-04 1998-07 1998-11 1999-02 1999-05 1999-08 1999-11 2000-02 2000-05 2000-08 3.5 3.0 CHLA 2.5 2.0

ug/l 1.5 1.0 0.5 0.0 1993-10 1994-01 1994-04 1994-07 1994-10 1995-01 1995-04 1995-07 1995-10 1996-01 1996-04 1996-07 1996-10 1997-01 1997-04 1997-07 1997-10 1998-01 1998-04 1998-07 1998-11 1999-02 1999-05 1999-08 1999-11 2000-02 2000-05 2000-08 2000-11 2001-03 2001-06 2001-09 2001-12 2002-03 2002-06 2002-09 2002-12 2003-03 2003-06 2003-09 2003-12 2004-03 2004-06 2004-09 2004-12 2005-03 Figure 18. Box-and-whisker plots of water quality in Biscayne Bay by survey. North Bay Zone 40 35 Salinity 30 25 20 15 10 5 0 1996-06 1996-08 1996-10 1996-12 1997-02 1997-04 1997-06 1997-08 1997-10 1997-12 1998-02 1998-04 1998-06 1998-08 1998-11 1999-01 1999-03 1999-05 1999-07 1999-09 1999-11 2000-01 2000-03 2000-05 2000-07 2000-09 2000-11 2001-01 2001-04 2001-06 2001-08 2001-10 2001-12 2002-02 2002-04 2002-06 2002-08 2002-10 2002-12 2003-02 2003-04 2003-06 2003-08 2003-10 2003-12 2004-02 2004-04 2004-06 2004-08 2004-10 2004-12 2005-02 0.35 DIN 0.30 0.25 0.20

ppm 0.15 0.10 0.05 0.00 2001-10 2001-12 2002-02 2002-04 2002-06 2002-08 2002-10 2002-12 2003-02 2003-04 2003-06 2003-08 2003-10 2003-12 2004-02 2004-04 2004-06 2004-08 2004-10 2004-12 2005-02 1996-06 1996-08 1996-10 1996-12 1997-02 1997-04 1997-06 1997-08 1997-10 1997-12 1998-02 1998-04 1998-06 1998-08 1998-11 1999-01 1999-03 1999-05 1999-07 1999-09 1999-11 2000-01 2000-03 2000-05 2000-07 2000-09 2000-11 2001-01 2001-04 2001-06 2001-08 0.04 TP 0.03

0.02 ppm

0.01

0.00 2001-10 2001-12 2002-02 2002-04 2002-06 2002-08 2002-10 2002-12 2003-02 2003-04 2003-06 2003-08 2003-10 2003-12 2004-02 2004-04 2004-06 2004-08 2004-10 2004-12 2005-02 1996-06 1996-08 1996-10 1996-12 1997-02 1997-04 1997-06 1997-08 1997-10 1997-12 1998-02 1998-04 1998-06 1998-08 1998-11 1999-01 1999-03 1999-05 1999-07 1999-09 1999-11 2000-01 2000-03 2000-05 2000-07 2000-09 2000-11 2001-01 2001-04 2001-06 2001-08 10.0 CHLA 8.0

6.0 ug/l 4.0

2.0

0.0 1996-06 1996-08 1996-10 1996-12 1997-02 1997-04 1997-06 1997-08 1997-10 1997-12 1998-02 1998-04 1998-06 1998-08 1998-11 1999-01 1999-03 1999-05 1999-07 1999-09 1999-11 2000-01 2000-03 2000-05 2000-07 2000-09 2000-11 2001-01 2001-04 2001-06 2001-08 2001-10 2001-12 2002-02 2002-04 2002-06 2002-08 2002-10 2002-12 2003-02 2003-04 2003-06 2003-08 2003-10 2003-12 2004-02 2004-04 2004-06 2004-08 2004-10 2004-12 2005-02 Figure 19. Box-and-whisker plots of water quality in Biscayne Bay by survey. Shelf Zone 40 35 Salinity 30 25 20 15 10 5 0 1997-02 1997-05 1997-07 1997-10 1998-01 1998-04 1998-07 1998-10 1999-01 1999-05 1999-07 1999-11 2000-01 2000-04 2000-07 2000-10 2001-01 2001-05 2001-07 2001-11 2002-01 2002-04 2002-08 2002-10 2003-01 2003-04 2003-07 2003-08 2003-10 2004-01 2004-04 2004-07 2004-10 2005-01 1995-05 1995-08 1995-12 1996-03 1996-07 1996-10 0.09 0.08 DIN 0.07 0.06 0.05

ppm 0.04 0.03 0.02 0.01 0.00 2001-07 2001-11 2002-01 2002-04 2002-08 2002-10 2003-01 2003-04 2003-07 2003-08 2003-10 2004-01 2004-04 2004-07 2004-10 2005-01 1995-05 1995-08 1995-12 1996-03 1996-07 1996-10 1997-02 1997-05 1997-07 1997-10 1998-01 1998-04 1998-07 1998-10 1999-01 1999-05 1999-07 1999-11 2000-01 2000-04 2000-07 2000-10 2001-01 2001-05 0.04 TP 0.03

0.02 ppm

0.01

0.00 2001-07 2001-11 2002-01 2002-04 2002-08 2002-10 2003-01 2003-04 2003-07 2003-08 2003-10 2004-01 2004-04 2004-07 2004-10 2005-01 1995-05 1995-08 1995-12 1996-03 1996-07 1996-10 1997-02 1997-05 1997-07 1997-10 1998-01 1998-04 1998-07 1998-10 1999-01 1999-05 1999-07 1999-11 2000-01 2000-04 2000-07 2000-10 2001-01 2001-05 10.0 CHLA 8.0

6.0 ug/l 4.0

2.0

0.0 1995-05 1995-08 1995-12 1996-03 1996-07 1996-10 1997-02 1997-05 1997-07 1997-10 1998-01 1998-04 1998-07 1998-10 1999-01 1999-05 1999-07 1999-11 2000-01 2000-04 2000-07 2000-10 2001-01 2001-05 2001-07 2001-11 2002-01 2002-04 2002-08 2002-10 2003-01 2003-04 2003-07 2003-08 2003-10 2004-01 2004-04 2004-07 2004-10 2005-01 Figure 20. Box-and-whisker plots of water quality in SW Florida Shelf by survey. Shark Zone 45 40 Salinity 35 30 25 20 15 10 5 0 1995-05 1995-08 1995-12 1996-03 1996-07 1996-10 1997-02 1997-05 1997-07 1997-10 1998-01 1998-04 1998-07 1998-10 1999-01 1999-05 1999-07 1999-11 2000-01 2000-04 2000-07 2000-10 2001-01 2001-05 2001-07 2001-11 2002-01 2002-04 2002-08 2002-10 2003-01 2003-04 2003-08 2003-10 2004-01 2004-04 2004-07 2004-10 2005-01 0.12 DIN 0.10 0.08 0.06 ppm 0.04 0.02 0.00 2001-05 2001-07 2001-11 2002-01 2002-04 2002-08 2002-10 2003-01 2003-04 2003-08 2003-10 2004-01 2004-04 2004-07 2004-10 2005-01 1995-05 1995-08 1995-12 1996-03 1996-07 1996-10 1997-02 1997-05 1997-07 1997-10 1998-01 1998-04 1998-07 1998-10 1999-01 1999-05 1999-07 1999-11 2000-01 2000-04 2000-07 2000-10 2001-01 0.08 TP 0.06

0.04 ppm

0.02

0.00 2001-05 2001-07 2001-11 2002-01 2002-04 2002-08 2002-10 2003-01 2003-04 2003-08 2003-10 2004-01 2004-04 2004-07 2004-10 2005-01 1995-05 1995-08 1995-12 1996-03 1996-07 1996-10 1997-02 1997-05 1997-07 1997-10 1998-01 1998-04 1998-07 1998-10 1999-01 1999-05 1999-07 1999-11 2000-01 2000-04 2000-07 2000-10 2001-01 10.0 CHLA 8.0

6.0 ug/l 4.0

2.0

0.04

0.03 ppm 0.02

0.01

0.00 2001-07 2001-11 2002-01 2002-04 2002-08 2002-10 2003-01 2003-04 2003-07 2003-08 2003-10 2004-01 2004-04 2004-05 2004-07 2004-10 2005-01 1995-05 1995-08 1995-12 1996-03 1996-07 1996-10 1997-02 1997-05 1997-07 1997-10 1998-01 1998-04 1998-07 1998-10 1999-01 1999-05 1999-07 1999-11 2000-01 2000-04 2000-07 2000-10 2001-01 2001-05 0.04 TP 0.03

0.02 ppm

0.01

0.00 2001-11 2002-01 2002-04 2002-08 2002-10 2003-01 2003-04 2003-07 2003-08 2003-10 2004-01 2004-04 2004-05 2004-07 2004-10 2005-01 1995-05 1995-08 1995-12 1996-03 1996-07 1996-10 1997-02 1997-05 1997-07 1997-10 1998-01 1998-04 1998-07 1998-10 1999-01 1999-05 1999-07 1999-11 2000-01 2000-04 2000-07 2000-10 2001-01 2001-05 2001-07 7.0 6.0 CHLA 5.0 4.0

ug/l 3.0 2.0 1.0 0.0 1995-05 1995-08 1995-12 1996-03 1996-07 1996-10 1997-02 1997-05 1997-07 1997-10 1998-01 1998-04 1998-07 1998-10 1999-01 1999-05 1999-07 1999-11 2000-01 2000-04 2000-07 2000-10 2001-01 2001-05 2001-07 2001-11 2002-01 2002-04 2002-08 2002-10 2003-01 2003-04 2003-07 2003-08 2003-10 2004-01 2004-04 2004-05 2004-07 2004-10 2005-01 Figure 22. Box-and-whisker plots of water quality in SW Florida Shelf by survey. Marco Zone 45 40 Salinity 35 30 25 20 15 10 5 0 1999-01 1999-03 1999-05 1999-07 1999-09 1999-11 2000-01 2000-03 2000-05 2000-07 2000-09 2000-11 2001-01 2001-03 2001-05 2001-07 2001-09 2001-11 2002-01 2002-03 2002-05 2002-07 2002-09 2002-11 2003-01 2003-03 2003-05 2003-07 2003-09 2003-11 2004-01 2004-03 2004-05 2004-07 2004-09 2004-11 2005-01 2005-03 0.25 DIN 0.20

0.15

ppm 0.10

0.05

0.00 2002-11 2003-01 2003-03 2003-05 2003-07 2003-09 2003-11 2004-01 2004-03 2004-05 2004-07 2004-09 2004-11 2005-01 2005-03 1999-01 1999-03 1999-05 1999-07 1999-09 1999-11 2000-01 2000-03 2000-05 2000-07 2000-09 2000-11 2001-01 2001-03 2001-05 2001-07 2001-09 2001-11 2002-01 2002-03 2002-05 2002-07 2002-09 0.14 0.12 TP 0.10 0.08 ppm 0.06 0.04 0.02 0.00 2002-11 2003-01 2003-03 2003-05 2003-07 2003-09 2003-11 2004-01 2004-03 2004-05 2004-07 2004-09 2004-11 2005-01 2005-03 1999-01 1999-03 1999-05 1999-07 1999-09 1999-11 2000-01 2000-03 2000-05 2000-07 2000-09 2000-11 2001-01 2001-03 2001-05 2001-07 2001-09 2001-11 2002-01 2002-03 2002-05 2002-07 2002-09 20.0 CHLA 15.0

10.0 ug/l

5.0

0.0 1999-01 1999-03 1999-05 1999-07 1999-09 1999-11 2000-01 2000-03 2000-05 2000-07 2000-09 2000-11 2001-01 2001-03 2001-05 2001-07 2001-09 2001-11 2002-01 2002-03 2002-05 2002-07 2002-09 2002-11 2003-01 2003-03 2003-05 2003-07 2003-09 2003-11 2004-01 2004-03 2004-05 2004-07 2004-09 2004-11 2005-01 2005-03 Figure 23. Box-and-whisker plots of water quality in RB-PIS by survey. Rookery Bay Zone 40 35 Salinity 30 25 20 15 10 5 0 1999-01 1999-03 1999-05 1999-07 1999-09 1999-11 2000-01 2000-03 2000-05 2000-07 2000-09 2000-11 2001-01 2001-03 2001-05 2001-07 2001-09 2001-11 2002-01 2002-03 2002-05 2002-07 2002-09 2002-11 2003-01 2003-03 2003-05 2003-07 2003-09 2003-11 2004-01 2004-03 2004-05 2004-07 2004-09 2004-11 2005-01 2005-03 0.30 DIN 0.25

0.20

0.15 ppm 0.10

0.05

0.06 ppm 0.04

0.02

25.0 CHLA

20.0

15.0 ug/l 10.0

5.0

0.0 1999-01 1999-03 1999-05 1999-07 1999-09 1999-11 2000-01 2000-03 2000-05 2000-07 2000-09 2000-11 2001-01 2001-03 2001-05 2001-07 2001-09 2001-11 2002-01 2002-03 2002-05 2002-07 2002-09 2002-11 2003-01 2003-03 2003-05 2003-07 2003-09 2003-11 2004-01 2004-03 2004-05 2004-07 2004-09 2004-11 2005-01 2005-03 Figure 24. Box-and-whisker plots of water quality in RB-PIS by survey. Naples Zone 40 35 Salinity 30 25 20 15 10 5 0 1999-01 1999-03 1999-05 1999-07 1999-09 1999-11 2000-01 2000-03 2000-05 2000-07 2000-09 2000-11 2001-01 2001-03 2001-05 2001-07 2001-09 2001-11 2002-01 2002-03 2002-05 2002-07 2002-09 2002-11 2003-01 2003-03 2003-05 2003-07 2003-09 2003-11 2004-01 2004-03 2004-05 2004-07 2004-09 2004-11 2005-01 2005-03 0.25 DIN 0.20

0.15

ppm 0.10

0.05

0.08

0.06 ppm 0.04

0.02

10.0 ug/l

5.0

0.0 1999-01 1999-03 1999-05 1999-07 1999-09 1999-11 2000-01 2000-03 2000-05 2000-07 2000-09 2000-11 2001-01 2001-03 2001-05 2001-07 2001-09 2001-11 2002-01 2002-03 2002-05 2002-07 2002-09 2002-11 2003-01 2003-03 2003-05 2003-07 2003-09 2003-11 2004-01 2004-03 2004-05 2004-07 2004-09 2004-11 2005-01 2005-03 Figure 25. Box-and-whisker plots of water quality in RB-PIS by survey. San Carlos Bay Zone 40 35 Salinity 30 25 20 15 10 5 0 1999-01 1999-03 1999-05 1999-07 1999-09 1999-11 2000-01 2000-03 2000-05 2000-07 2000-09 2000-11 2001-01 2001-03 2001-05 2001-07 2001-09 2001-11 2002-01 2002-03 2002-05 2002-07 2002-09 2002-11 2003-01 2003-03 2003-05 2003-07 2003-09 2003-11 2004-01 2004-03 2004-05 2004-07 2004-09 2004-11 2005-01 2005-03 0.6 DIN 0.5

0.4

0.3 ppm 0.2

0.1

0.0 2002-11 2003-01 2003-03 2003-05 2003-07 2003-09 2003-11 2004-01 2004-03 2004-05 2004-07 2004-09 2004-11 2005-01 2005-03 1999-01 1999-03 1999-05 1999-07 1999-09 1999-11 2000-01 2000-03 2000-05 2000-07 2000-09 2000-11 2001-01 2001-03 2001-05 2001-07 2001-09 2001-11 2002-01 2002-03 2002-05 2002-07 2002-09 0.20 TP 0.15

0.10 ppm

0.05

25.0 CHLA

20.0

15.0 ug/l 10.0

5.0

0.0 1999-01 1999-03 1999-05 1999-07 1999-09 1999-11 2000-01 2000-03 2000-05 2000-07 2000-09 2000-11 2001-01 2001-03 2001-05 2001-07 2001-09 2001-11 2002-01 2002-03 2002-05 2002-07 2002-09 2002-11 2003-01 2003-03 2003-05 2003-07 2003-09 2003-11 2004-01 2004-03 2004-05 2004-07 2004-09 2004-11 2005-01 2005-03 Figure 26. Box-and-whisker plots of water quality in RB-PIS by survey. Estero Bay Zone 40 35 Salinity 30 25 20 15 10 5 0 1999-01 1999-03 1999-05 1999-07 1999-09 1999-11 2000-01 2000-03 2000-05 2000-07 2000-09 2000-11 2001-01 2001-03 2001-05 2001-07 2001-09 2001-11 2002-01 2002-03 2002-05 2002-07 2002-09 2002-11 2003-01 2003-03 2003-05 2003-07 2003-09 2003-11 2004-01 2004-03 2004-05 2004-07 2004-09 2004-11 2005-01 2005-03 0.20 DIN 0.15

0.10 ppm

0.05

0.10 ppm

0.05

10.0 ug/l

5.0

0.0 1999-01 1999-03 1999-05 1999-07 1999-09 1999-11 2000-01 2000-03 2000-05 2000-07 2000-09 2000-11 2001-01 2001-03 2001-05 2001-07 2001-09 2001-11 2002-01 2002-03 2002-05 2002-07 2002-09 2002-11 2003-01 2003-03 2003-05 2003-07 2003-09 2003-11 2004-01 2004-03 2004-05 2004-07 2004-09 2004-11 2005-01 2005-03 Figure 27. Box-and-whisker plots of water quality in RB-PIS by survey. Pine Island Sound Zone 40 35 Salinity 30 25 20 15 10 5 0 1999-01 1999-03 1999-05 1999-07 1999-09 1999-11 2000-01 2000-03 2000-05 2000-07 2000-09 2000-11 2001-01 2001-03 2001-05 2001-07 2001-09 2001-11 2002-01 2002-03 2002-05 2002-07 2002-09 2002-11 2003-01 2003-03 2003-05 2003-07 2003-09 2003-11 2004-01 2004-03 2004-05 2004-07 2004-09 2004-11 2005-01 2005-03 0.20 DIN 0.15

0.10 ppm

0.05

0.10 ppm

0.05

15.0 ug/l 10.0

5.0

0.0 1999-01 1999-03 1999-05 1999-07 1999-09 1999-11 2000-01 2000-03 2000-05 2000-07 2000-09 2000-11 2001-01 2001-03 2001-05 2001-07 2001-09 2001-11 2002-01 2002-03 2002-05 2002-07 2002-09 2002-11 2003-01 2003-03 2003-05 2003-07 2003-09 2003-11 2004-01 2004-03 2004-05 2004-07 2004-09 2004-11 2005-01 2005-03 Figure 28. Box-and-whisker plots of water quality in RB-PIS by survey. Table 1. Parameter Zone Median Min. Max. n Alkaline Biscayne Bay 0.115 0.033 0.698 75 Phosphatase Florida Bay 0.188 0.023 1.289 84 Activity Rookery Bay 0.042 0.018 0.066 87 (µM h-1) SW Shelf 0.045 0.023 0.192 49 Ten Thousand Is. 0.043 0.027 0.544 78 Whitewater Bay 0.5400.018 3.731 66

Chlorophyll a Biscayne Bay 0.240 0.090 1.874 75 (µg l-1) Florida Bay 0.336 0.086 2.855 84 Rookery Bay 1.983 0.819 7.329 87 SW Shelf 0.766 0.192 4.910 49 Ten Thousand Is. 2.145 0.646 10.276 78 Whitewater Bay 2.9660.646 14.103 66

Surface Biscayne Bay 6.75 6.12 8.31 75 Dissolved Florida Bay 6.98 5.52 8.77 84 Oxygen Rookery Bay 7.02 4.98 8.83 87 (mg l-1) SW Shelf 7.19 5.76 8.31 49 Ten Thousand Is. 7.04 5.21 8.90 78 Whitewater Bay 7.54 4.31 11.24 66

Bottom Biscayne Bay 6.80 6.14 8.39 75 Dissolved Florida Bay 7.11 5.43 8.76 84 Oxygen Rookery Bay 6.96 5.13 8.87 87 (mg l-1) SW Shelf 7.02 6.31 8.21 49 Ten Thousand Is. 7.09 5.16 9.32 78 Whitewater Bay 7.36 4.46 10.56 66

+ NH4 Biscayne Bay 0.006 0.001 0.016 75 (ppm) Florida Bay 0.018 0.002 0.168 84 Rookery Bay 0.009 0.001 0.052 87 SW Shelf 0.003 0.001 0.011 49 Ten Thousand Is. 0.010 0.001 0.153 78 Whitewater Bay 0.0280.004 0.142 66

Parameter Zone Median Min. Max. n - NO2 Biscayne Bay 0.001 0.000 0.004 75 (ppm) Florida Bay 0.002 0.000 0.041 84 Rookery Bay 0.002 0.000 0.006 87 SW Shelf 0.001 0.000 0.007 49 Ten Thousand Is. 0.002 0.000 0.014 78 Whitewater Bay 0.0050.000 0.026 66

- NO3 Biscayne Bay 0.002 0.000 0.039 75 (ppm) Florida Bay 0.002 0.000 0.082 84 Rookery Bay 0.002 0.000 0.051 87 SW Shelf 0.001 0.000 0.005 49 Ten Thousand Is. 0.005 0.000 0.116 78 Whitewater Bay 0.0260.002 0.102 66

pH Biscayne Bay 8.070 7.940 8.430 75 Florida Bay 8.235 7.880 8.715 84 Rookery Bay 7.985 6.900 8.245 87 SW Shelf 8.015 7.890 8.075 49 Ten Thousand Is. 7.860 7.460 8.145 78 Whitewater Bay 7.8677.315 8.575 66

Surface Biscayne Bay 35.92 32.19 37.93 75 Salinity Florida Bay 36.39 26.67 43.91 84 Rookery Bay 34.45 21.20 35.71 87 SW Shelf 35.21 32.12 36.03 49 Ten Thousand Is. 34.19 5.05 36.32 78 Whitewater Bay 16.36 2.74 37.70 66

Bottom Biscayne Bay 35.99 32.21 38.44 75 Salinity Florida Bay 36.38 26.87 43.95 84 Rookery Bay 34.69 25.34 35.78 87 SW Shelf 35.23 32.15 36.08 49 Ten Thousand Is. 34.39 4.98 36.33 78 Whitewater Bay 16.68 3.17 33.74 66

Si(OH)4 Biscayne Bay 0.011 0.000 0.211 25 (ppm) Florida Bay 0.194 0.012 1.087 28 Rookery Bay 0.585 0.016 1.264 29 SW Shelf 0.036 0.001 0.377 49 Ten Thousand Is. 1.146 0.019 2.506 26 Whitewater Bay 2.3720.770 4.015 22 Parameter Zone Median Min. Max. n Soluble Biscayne Bay 0.001 0.000 0.002 75 Reactive Florida Bay 0.001 0.000 0.002 84 Phosphorus Rookery Bay 0.008 0.001 0.037 87 (ppm) SW Shelf 0.001 0.001 0.003 49 Ten Thousand Is. 0.005 0.001 0.021 78 Whitewater Bay 0.0020.001 0.008 66

Surface Biscayne Bay 22.69 15.89 28.19 75 Temperature Florida Bay 22.35 13.67 26.57 84 (oC) Rookery Bay 19.78 17.33 23.46 87 SW Shelf 19.81 18.80 21.24 49 Ten Thousand Is. 19.20 13.74 27.39 78 Whitewater Bay 20.6815.90 24.01 66

Bottom Biscayne Bay 22.67 15.83 28.20 75 Temperature Florida Bay 22.34 13.71 26.59 84 (oC) Rookery Bay 19.47 17.20 23.02 87 SW Shelf 19.63 18.81 21.23 49 Ten Thousand Is. 19.09 14.08 27.08 78 Whitewater Bay 20.5714.96 23.93 66

Total Biscayne Bay 0.189 0.082 0.470 75 Nitrogen Florida Bay 0.310 0.104 0.571 82 (ppm) Rookery Bay 0.230 0.140 0.434 87 SW Shelf 0.213 0.128 0.294 49 Ten Thousand Is. 0.244 0.143 0.511 78 Whitewater Bay 0.3980.229 0.909 66

Total Biscayne Bay 2.227 1.128 4.925 75 Organic Florida Bay 6.485 1.831 21.033 83 Carbon Rookery Bay 3.420 1.443 8.546 87 (ppm) SW Shelf 2.140 1.567 4.495 49 Ten Thousand Is. 5.032 2.433 17.560 78 Whitewater Bay 13.7794.501 24.858 66

Total Biscayne Bay 0.171 0.073 0.452 75 Organic Florida Bay 0.265 0.097 0.552 82 Nitrogen Rookery Bay 0.214 0.108 0.403 87 (ppm) SW Shelf 0.204 0.127 0.284 49 Ten Thousand Is. 0.212 0.116 0.357 78 Whitewater Bay 0.3200.174 0.855 66 Parameter Zone Median Min. Max. n Total Biscayne Bay 0.004 0.002 0.024 75 Phosphorus Florida Bay 0.005 0.003 0.034 84 (ppm) Rookery Bay 0.034 0.020 0.085 87 SW Shelf 0.010 0.006 0.020 49 Ten Thousand Is. 0.028 0.014 0.089 78 Whitewater Bay 0.0270.012 0.062 66

Turbidity Biscayne Bay 0.64 0.12 2.84 75 (NTU) Florida Bay 2.17 0.34 16.65 84 Rookery Bay 2.76 0.33 16.82 87 SW Shelf 1.95 0.70 11.05 49 Ten Thousand Is. 4.61 1.18 19.22 78 Whitewater Bay 5.21 1.07 37.40 66