Annual Report of Activities Conducted under the Cooperative Aquatic Plant Control Program in Florida Public Waters for Fiscal Year

Annual Report of Activities Conducted under the Cooperative Aquatic Plant Control Program in Florida Public s for Fiscal Year 2012-2013 Florida Fish and Wildlife Conservation Commission Invasive Plant Management Section Submitted by: FL Fish and Wildlife Conservation Commission Invasive Plant Management Section 3900 Commonwealth Blvd. MS705 Tallahassee, FL 32399 Phone: 850-617-9420 Fax: 850-922-1249

Annual Report of Activities Conducted under the Cooperative Aquatic Plant Control Program in Florida Public s for Fiscal Year 2012-2013 This report was prepared in accordance with 369.22 (7), Florida Statutes, to provide an annual summary of plants treated and funding necessary to manage aquatic plants in public waters. The Cooperative Aquatic Plant Control Program administered by the Florida Fish and Wildlife Conservation Commission (FWC) in Florida s public waters involves complex operational and financial interactions between state, federal and local governments as well as private sector companies. FWC s aquatic plant management program mission is to reduce negative impacts from invasive nonindigenous plants like water hyacinth, water lettuce and hydrilla to conserve the multiple uses and functions of public lakes and rivers. Invasive plants infest 96% of Florida s 451 public waters inventoried in 2013 that comprise 1.26 million acres of fresh water. Once established, eradicating invasive plants is difficult or impossible and very expensive; therefore, continuous maintenance is critical to keep invasive plants at low levels to sustain attributes like navigation, flood control and recreation while conserving native plant habitat for fish and wildlife on sovereignty state lands. A detailed description of the uses of Florida waters, how aquatic plants may impair these uses, aquatic plant control options, management plan development, and research and outreach efforts is presented in the following website designed and maintained in a collaborative effort between FWC and the University of Florida, Center for Aquatic and Invasive Plants: http://plants.ifas.ufl.edu/manage/. A summary of plant control in sovereignty public waters and associated expenditures contracted or monitored by the FWC during Fiscal Year 2012-2013 is presented in the following pages. Management statistics are summarized in Tables 1-4 and presented graphically in Figures 1-4. FWC s highest management priorities (established in rule under section 68F-54.005 F.A.C.) are the control of floating plants (water hyacinth and water lettuce) and hydrilla. Other plants listed in the tables include both native and nonindigenous plants that may impair the uses of Florida public waters. Table 1 presents the amount of control and associated funding for each plant type within the boundaries of the five water management districts to provide some geographical perspective on where plants are controlled in Florida. Table 2 breaks down aquatic plant management expenditures by federal and state funds. Twelve aquatic plant species found in Florida are considered to be invasive in that they are capable of causing environmental or economic harm if not managed on a routine basis. Some are widespread like floating plants or hydrilla and are under continuous maintenance. Others are present in only a few locations and are under eradication programs to prevent them from becoming established in Florida waters. Table 3 lists individual plant types found in Florida public waters summarizing acres controlled and associated control expenditures for Fiscal Year 2012-2013. Table 4 lists management expenditures by waterbody, including assessment and monitoring costs. Figure 1 shows the ranges in size of the floating plant populations reported in Florida public lakes and rivers in 2013. Although these plants are widespread, found in 255 public waters, most populations are being suppressed to fewer than ten acres, keeping overall management costs and environmental impacts at low levels. Figure 2 shows water hyacinth cover in Florida public waters in ten-year intervals dating from 1947 through 2013 to give an historical perspective of the presence of this prolific plant species through the decades. The Maintenance Control management philosophy 1

was implemented for floating plants in the early 1970s - control invasive plants on a statewide coordinated, routine and consistent basis - to reduce the overall population from about 125,000 acres in 1959 to a few thousand acres at any one time for the past 35 years. Floating plants were under maintenance control in 98% of Florida s public waters during 2013. Figure 3 shows acreage ranges for the 194 hydrilla populations that were reported in public lakes and rivers in 2013. Seventy-five percent of all hydrilla populations observed in 2013 covered fewer than ten acres, and hydrilla was considered to be under maintenance control in 98% of Florida s public waters in 2013. Figure 4 compares funding for hydrilla control vs. acres of hydrilla reported in public waters from 1982-2013. When funding is adequate, hydrilla can be suppressed at low levels. When funding is insufficient, hydrilla expands and forms underground tubers that can persist for many years, representing the potential for immediate regrowth after control, and the need for prolonged higher levels of management funding until these tuber banks are depleted. 2

Year in Review - Fiscal Year 2012-2013 Invasive non-native plants were reported in 96% of Florida s 451 public lakes and rivers that comprise 1.26 million acres of fresh water. Eradicating established invasive aquatic plant populations has proven nearly impossible; therefore, routine maintenance is needed to suppress invasive plants at low levels to sustain attributes like navigation, flood control, and recreation while conserving native plant habitat. Floating water hyacinth and water lettuce, two of the world s fastest growing plants, covered as much as 125,000 acres of Florida public waters as recently as the 1960s and therefore are the FWC s highest management priorities. Floating plants were present in 255 public lakes and rivers in 2013 covering about 5,880 acres and are under maintenance control in 98% of Florida s public waters. Eighty-four percent of the floating plant populations reported in 2013 covered 10 acres or less. (Figure 1) Managers spent about $5.80 million controlling 46,757 acres of floating invasive plants in Florida public lakes and rivers during (Tables 1-3). This was about a 40% increase in funds expended and acres controlled in FY 11-12 as managers coped with increased floating plant growth, a common occurrence as lakes refill after extended drought. Submersed hydrilla, imported during the 1950s as an aquarium plant, is capable of growing several inches per day filling the water column and covering the surface of water bodies that are not frequently and routinely managed. Insufficient funding allowed hydrilla to evolve into statewide water and habitat management crises by the middle 1990s infesting about 100,000 acres in 365 (80%) of Florida s public lakes and rivers. Sufficient, recurring funding and improved technology aided by FWC-funded research enabled managers to reduce hydrilla to about 28,610 acres in 2013. (Figure 4) Hydrilla was reported in 194 public waters in 2013 and is considered to be under maintenance control in 98% of Floridas public lakes and rivers; however, tubers infest about 90,000 acres and represent the potential for immediate regrowth. 75% of the hydrilla populations reported in 2013 covered 10 acres or less (Figure 3). Sixty-five percent of the hydrilla reported in 2013 occurred in the four lakes of the Kissimmee Chain of Lakes, among Florida s largest and most important multiple-purpose waterways. Managers spent $7.43 million treating about 14,150 acres of hydrilla in Florida public lakes and rivers during to conserve the multiple uses of these resources (Tables 1-3). The Florida Exotic Pest Plant Council lists 12 Category I invasive plants, capable of disrupting aquatic ecosystems and causing harm in Florida public waters. Seven Category I plant species in addition to hydrilla, water hyacinth, and water lettuce were detected covering about 6,670 acres in 91% of Florida s public waters in 2013. $2.74 million were spent managing about 6,670 acres of aquatic plants other than hydrilla and floating plants during (Tables 1-3). Most for the control of tussock-forming plants like frog s bit, burhead sedge, and tropical American water grass in Lakes Okeechobee, and the Kissimmee Chain of Lakes, and floating islands and tussocks in Tsala Apopka to conserve fish and wildlife habitat and navigation in the extensive marsh systems of these waters. 3

Fiscal Year 2012-2013 Management Statistics Table 1: of Aquatic Plants and Treatment Expenditures in Florida Public s during Fiscal Year 2012-2013. Northwest Suwannee St Johns Southwest S. Florida TOTAL Floating 644.10 479.91 13,547.85 5,101.49 26,983.43 46,756.78 Hydrilla 13.95 9.16 1,687.11 3,060.18 9,381.63 14,152.03 Other Plants 375.90 127.68 616.82 1,103.47 4,448.41 6,672.28 TOTAL 1,033.95 616.75 15,851.78 9,265.14 40,813.47 67,581.09 Expenditures Northwest Suwannee St Johns Southwest S. Florida TOTAL Floating $69,148.73 $74,827.48 $1,189,089.27 $727,797.40 $3,738,510.20 $5,799,373.08 Hydrilla $11,825.16 $12,154.82 $944,930.70 $1,625,352.37 $4,834,616.91 $7,428,879.96 Other Plants $53,922.58 $47,554.29 $131,191.66 $1,667,592.84 $843,890.91 $2,744,152.28 TOTAL $134,896.47 $134,536.59 $2,265,211.63 $4,020,742.61 $9,417,018.02 $15,972,405.32 Table 2: Federal and State Funds Expended during Fiscal Year 2012-2012 to Control Aquatic Plants in Florida Public Bodies. Government /Plant TOTAL Federal Floating Plants $1,830,823.95 Hydrilla 0 Other Plants 2,233.52 Subtotal $1,833,057.47 State Floating Plants $3,968,549.13 Hydrilla $7,428,879.96 Other Plants $2,741,918.76 Subtotal $14,139,347.85 Federal + State Floating Plants $5,799,373.08 Hydrilla $7,428,879.96 Other Plants $2,744,152.28 Total $15,972,405.32 Table 3: of Aquatic Plants and Associated Expenditures in Florida Public s during Fiscal Year 2012-2013 Listed by Plant Type. Plant Expenditures Hydrilla 14,152.03 $7,428,879.96 Floating Plants 46,756.78 $5,799,373.08 Torpedograss 388.95 $52,307.32 Wild taro 28.50 $7,918.70 Paragrass 12.73 $2,114.07 Hygrophila 3.65 $2,703.53 W. Indian marsh grass 422.97 $49,712.29 Napiergrass 0 0 Aquatic soda apple 0 0 spinach 0 0 Giant salvinia 10.80 $1,415.23 Other plants 5,443.32 $1,240,002.54 Floating islands 361,37 $1,387,978.60 Total 67,581.09 $15,972,405.32 4

Floating Plants Figure 1: Number of Public Lakes and Rivers in which Floating Plants Were Reported in 2013; Reported by Range of Population Size. 153 of the 255 floating plant populations reported in 2013 covered less than one acre. This is significant in that few floating plant populations are not under maintenance control. Those waters with large floating plant levels reported in 2013 are high priorities to regain control in 2014. # of Populations 200 150 100 50 0 <1 1-10 10-100 100-500 >500 Hyacinth Acre Ranges Figure 2: of Hyacinth Reported in Florida Public Lakes and Rivers from 1947-2013. hyacinth reached its apex, covering more than 125,000 acres in the early 1960s. Frequent and consistent management efforts coordinated on a statewide basis have allowed managers to reduce the standing crops of water hyacinth and water lettuce to low levels where they do not impair the multiple uses of Florida waters. (thousands) 150 100 50 0 1947 1959 1969 1979 1989 1999 2009 2013 Year Hydrilla Figure 3: Number of Public Lakes and Rivers in which Hydrilla Was Reported in 2013; Reported by Range of Population Size. 146 of the 194 hydrilla populations reported in 2013 covered 10 acres or less, signifying that most that are under maintenance control are at very low levels. Populations exceeding 100 acres are the higher management priorities for 2014. # of Populations 100 80 60 40 20 0 <1 1-10 10-100 100-1,000 >1000 Hydrilla Acre Ranges 5

Figure 4: Reported and Managing Hydrilla in Florida Public Lakes and Rivers from 1982-2013. 120 100 Hydrilla Funds Expended 20 18 16 (thousands) 80 60 40 14 12 10 8 6 (millions) 20 4 2 0 0 Year When funds are sufficient, hydrilla can be managed at a low level. When funds decline, hydrilla expands to a higher level requiring additional recurring funding for control. Hydrilla reached its apex in Florida public waters in 1994, covering nearly 100,000 acres. Although the standing crop in the collective 194 waters in which hydrilla was reported in 2013 totaled about 28,610 acres, underground tubers, that represent hydrilla s ability to immediately sprout and refill the water column, are estimated at about 90,000 acres. 6

Table 4. Plants Controlled and Management Expenditures by body in Florida Public s during Fiscal Year 2012-2013 Table 4 Key body body Contractor AA AVC Brevard Citrus FL Env. Highlands Hillsborough Lake Orange Palm Beach Polk SFWMD SJRWMD SWFWMD USACE Winter Park County WMD Plant Type Name of public waterbody Surface acres of public waterbody Agency or company that conducts aquatic plant management Applied Aquatic Management, Inc. Aquatic Vegetation Control, Inc. Brevard County Citrus County Florida Environmental Consultants, Inc. Highlands County Hillsborough County Lake County Orange County Palm Beach County Polk County South Florida Management District St. Johns River Management District Southwest Florida Management District U.S. Army Corps of Engineers City of Winter Park County in which the water body lies (Note: many water bodies lie in more than one county, for example: the St. Johns River lies in 11 counties, but for reporting purposes has been assigned to St. Johns County) Management District in which the water body lies Name of plant (note: floating plants = water hyacinth and/or water lettuce) of plants managed during fiscal year 2012-2013 spent managing plants, including assessment and monitoring, during fiscal year 2012-2013 7

Adelaide, Lake 98 Highlands HIGHLANDS SWFWMD Oxycaryum cubense 1 223.58 Agnes, Lake 386 Polk POLK SWFWMD Floating 0.5 27783.61 Alexander Springs 185 Lake LAKE SJRWMD Floating 48.5 9507.52 Alexander Springs 185 Lake LAKE SJRWMD Paspalidium geminatum 6.33 691.58 Alexander Springs 185 Lake LAKE SJRWMD Typha spp. 9 1201.4 Alfred, Lake 736 Polk POLK SWFWMD Floating 0 762.15 Alfred, Lake 736 Polk POLK SWFWMD Hydrilla 0 186.04 Alligator Lake 3406 SFWMD OSCEOLA SFWMD Floating 4.15 1864.94 Alligator Lake 3406 SFWMD OSCEOLA SFWMD Oxycaryum cubense 17.6 1840.35 Alligator Lake 3406 AA COLUMBIA SRWMD Alternanthera philoxeroides 10 1087.44 Alligator Lake 3406 AA COLUMBIA SRWMD Floating 212 24691.98 Alligator Lake 3406 AA COLUMBIA SRWMD Hydrilla 4 3696.42 Alligator Lake 3406 AA COLUMBIA SRWMD Hydrocotyle spp. 5 1170.59 Alligator Lake 3406 AA COLUMBIA SRWMD Salix spp. 16 1604.73 Alligator Lake 3406 AA COLUMBIA SRWMD Salvinia minima 0.025 0 Alto, Lake 540 AA ALACHUA SRWMD Floating 0.5 150.18 Alto, Lake 540 AA ALACHUA SRWMD Sacciolepis striata 3 154.59 Alto, Lake 540 AA ALACHUA SRWMD Salvinia minima 3 228.25 Anclote River 200 SWFWMD PASCO SWFWMD Floating 0 285.07 Annie, Lake 539 Polk POLK SWFWMD Floating 0 413.64 Annie, Lake 539 Polk POLK SWFWMD Hydrilla 3 2105.93 Apalachicola River 30000 AA FRANKLIN NWFWMD Salix spp. 0.5 159.67 Apopka Beauclair Canal 50 Lake LAKE SJRWMD Ceratophyllum demersum 1.421 1273.16 Apopka Beauclair Canal 50 Lake LAKE SJRWMD Floating 63 7036.76 Apopka Beauclair Canal 50 Lake LAKE SJRWMD Hydrilla 0 133.27 Apopka Beauclair Canal 50 Lake LAKE SJRWMD Oxycaryum cubense 2 321.31 Apopka Beauclair Canal 50 Lake LAKE SJRWMD Panicum repens 1 75.87 Apopka, Lake 30671 SJRWMD ORANGE SJRWMD Floating 41 6439.74 Apopka, Lake 30671 SJRWMD ORANGE SJRWMD Hydrilla 24.25 19638.18 Apopka, Lake 30671 SJRWMD ORANGE SJRWMD Ludwigia octovalvis/peruviana 34 4971.94 Apopka, Lake 30671 SJRWMD ORANGE SJRWMD Typha spp. 55 6290.56 Apthorpe, Lake 219 Highlands HIGHLANDS SWFWMD Oxycaryum cubense 1 477.36 Arbuckle Creek 120 Highlands HIGHLANDS SFWMD Floating 163 18389.66 Arbuckle Creek 120 Highlands HIGHLANDS SFWMD Hymenachne amplexicaulis 83.9 8364.72 Arbuckle Creek 120 Highlands HIGHLANDS SFWMD Trees (blocking navigation) 0 6743.85 Arbuckle, Lake 3828 Polk POLK SFWMD Floating 513 87849.54 Arbuckle, Lake 3828 Polk POLK SFWMD Hydrilla 65 29278.91 Arbuckle, Lake 3828 Polk POLK SFWMD Hymenachne amplexicaulis 3.25 1472.68 Arbuckle, Lake 3828 Polk POLK SFWMD Oxycaryum cubense 5 883.74 Arbuckle, Lake 3828 Polk POLK SFWMD Trees (blocking navigation) 0 520.42 Ariana, Lake 1026 Polk POLK SWFWMD Floating 0 160.89 Ashby, Lake 1030 AA VOLUSIA SJRWMD Floating 87 10310.74 Ashby, Lake 1030 AA VOLUSIA SJRWMD Hydrilla 12.7 8268.02 Ashby, Lake 1030 AA VOLUSIA SJRWMD Panicum repens 1 230.07 8

Ashby, Lake 1030 AA VOLUSIA SJRWMD Phragmites australis 2 352.35 Ashby, Lake 1030 AA VOLUSIA SJRWMD Typha spp. 0.75 134.58 Baldwin, Lake 196 AA ORANGE SJRWMD Floating 0.25 221.45 Baldwin, Lake 196 AA ORANGE SJRWMD Hydrilla 2 1626.9 Banana Lake 342 Polk POLK SWFWMD Floating 54.5 9948.83 Banana Lake 342 Polk POLK SWFWMD Hydrilla 4.5 3790.13 Bay County Salvinia Ponds 4 AA BAY NWFWMD Salvinia molesta 8.8 822.31 Baymeadows FMA 15 FL Env. DUVAL SJRWMD Panicum repens 1.1 331.96 Baymeadows FMA 15 FL Env. DUVAL SJRWMD Utricularia foliosa 4.5 792.98 Beakman Lake 94 Lake LAKE SJRWMD Floating 0.031 79.77 Beauclair, Lake 1111 Lake LAKE SJRWMD Floating 0 66.63 Beauclair, Lake 1111 Lake LAKE SJRWMD Typha spp. 4 604.59 Bethesda Lake FMA 10 FL Env. DUVAL SRWMD Panicum repens 0.1 156.27 Blanche, Lake 121 Orange ORANGE SFWMD Hydrilla 5.03 5636.58 Blue Cypress Lake 6555 SJRWMD INDIAN RIVER SJRWMD Colocasia esculenta 1 465.43 Blue Cypress Lake 6555 SJRWMD INDIAN RIVER SJRWMD Floating 83 11879.06 Blue Cypress Lake 6555 SJRWMD INDIAN RIVER SJRWMD Hydrilla 0 370.17 Blue Lake 62 AA VOLUSIA SJRWMD Floating 0 55 Blue Lake 62 AA VOLUSIA SJRWMD Oxycaryum cubense 1.5 161.11 Blue Lake 62 AA VOLUSIA SJRWMD Panicum repens 0.25 175.34 Blue Lake 62 AA VOLUSIA SJRWMD Typha spp. 2 330.05 Blue, Lake 118 Polk POLK SWFWMD Floating 0 107.26 Blue, Lake 118 Polk POLK SWFWMD Hydrilla 1.25 598.78 Bobby Hicks Park Pond 25 Hillsborough HILLSBOROUGH SWFWMD Floating 34.8 5583.06 Bonnet, Lake 260 Highlands HIGHLANDS SWFWMD Floating 1 426.4 Bonnet, Lake 260 Highlands HIGHLANDS SWFWMD Nuphar advena 1.1 181.76 Bonny, Lake 354 Polk POLK SWFWMD Floating 0 197.67 Braden River 220 SWFWMD MANATEE SWFWMD Floating 48 5871.66 Braden River 220 SWFWMD MANATEE SWFWMD Paspalum repens 0.52 309.19 Buckeye Lake 71 Polk POLK SWFWMD Hydrilla 71 34541.61 Buffum, Lake 1543 Polk POLK SWFWMD Floating 10 5062.71 Buffum, Lake 1543 Polk POLK SWFWMD Ludwigia octovalvis/peruviana 0.5 187.44 Bugg Springs 7 Lake LAKE SJRWMD Floating 7.5 910.69 Bugg Springs 7 Lake LAKE SJRWMD Hydrilla 0 39.37 Bugg Springs 7 Lake LAKE SJRWMD Hydrocotyle spp. 5 330.59 Butler, Lake 1665 Orange ORANGE SFWMD Floating 1.5 588 Butler, Lake 1665 Orange ORANGE SFWMD Hydrilla 3 3938.94 Butler, Lake 420 AA UNION SRWMD Floating 3 868.63 Cannon Lake 336 Polk POLK SWFWMD Floating 0 80.45 Cannon Lake 336 Polk POLK SWFWMD Hydrilla 71.2 51120.51 Carlton, Lake 382 Lake ORANGE SJRWMD Floating 0 53.3 Carlton, Lake 382 Lake ORANGE SJRWMD Typha spp. 1.75 381.17 Carrie, Lake 65 Highlands HIGHLANDS SWFWMD Floating 1 349.14 Carter Road 150 Polk POLK SWFWMD Floating 7.5 2402.29 9

Catfish Creek 30 Highlands HIGHLANDS SWFWMD Nuphar advena 0.55 129 Catfish Creek 30 Highlands HIGHLANDS SWFWMD Trees (blocking navigation) 0 239 Center, Lake 410 SFWMD OSCEOLA SFWMD Floating 7.71 1186.13 Center, Lake 410 SFWMD OSCEOLA SFWMD Oxycaryum cubense 3.71 1199.17 Chase, Lake 135 Orange ORANGE SFWMD Hydrilla 2.43 2680.76 Chassahowitzka River 1000 Citrus CITRUS SWFWMD Egeria densa 7 1779.45 Chassahowitzka River 1000 Citrus CITRUS SWFWMD Floating 0 887.18 Chassahowitzka River 1000 Citrus CITRUS SWFWMD Hydrilla 19.15 15900.77 Cherry Lake 479 AA MADISON SRWMD Floating 3 378.35 Cherry, Lake 396 Lake LAKE SJRWMD Floating 0.25 87.87 Chipola River 290 AA JACKSON NWFWMD Floating 1 271.97 Choctawhatchee River 380 AA WALTON NWFWMD Hydrilla 1.5 1431.6 Clarke, Lake 33 Palm Beach PALM BEACH SFWMD Floating 45 4693.5 Clarke, Lake 33 Palm Beach PALM BEACH SFWMD Hydrilla 3.153 3383.2 Clarke, Lake 33 Palm Beach PALM BEACH SFWMD Nymphoides cristata 3 1943.87 Clay Lake 467 Highlands HIGHLANDS SWFWMD Floating 0 358.4 Clay Lake 467 Highlands HIGHLANDS SWFWMD Hydrilla 0 324.74 Clay Lake 467 Highlands HIGHLANDS SWFWMD Trees (blocking navigation) 0 461.6 Clear Lake 339 AA ORANGE SFWMD Hydrilla 290 129911 Clinch, Lake 1207 Polk POLK SWFWMD Floating 1.5 1346.31 Clinch, Lake 1207 Polk POLK SWFWMD Typha spp. 1.25 670.46 Colby, Lake 103 AA VOLUSIA SJRWMD Floating 0 55 Conine, Lake 236 Polk POLK SWFWMD Floating 0 155.12 Conine, Lake 236 Polk POLK SWFWMD Hydrilla 10.5 2587.61 Conine, Lake 236 Polk POLK SWFWMD Typha spp. 2 257.73 Conway, Lake 1767 Orange ORANGE SJRWMD Floating 0.5 326.21 Conway, Lake 1767 Orange ORANGE SJRWMD Hydrilla 91.1 63015.75 Cook, Lake 20 Lake LAKE SJRWMD Floating 0 26.67 Coon Lake 148 SFWMD OSCEOLA SFWMD Floating 3.67 735.74 Coon Lake 148 SFWMD OSCEOLA SFWMD Ludwigia grandiflora 4.62 1817.72 Coon Lake 148 SFWMD OSCEOLA SFWMD Oxycaryum cubense 1.056 465.29 Corbett WMA ponds 12 AA PALM BEACH SFWMD Ludwigia octovalvis/peruviana 2 341.6 Corbett WMA ponds 12 AA PALM BEACH SFWMD Nuphar advena 4.25 1052.39 Corbett WMA ponds 12 AA PALM BEACH SFWMD Nymphoides cristata 0.75 158.46 Corbett WMA ponds 12 AA PALM BEACH SFWMD Salvinia minima 8 963.76 Corbett WMA ponds 12 AA PALM BEACH SFWMD Tussocks 26 6298.32 Crescent Lake 143 Lake LAKE SJRWMD Hydrilla 0.569 476.02 Crooked Lake 5538 Polk POLK SFWMD Floating 14 6456.64 Crystal River 1650 Citrus CITRUS SWFWMD Filamentous algae 4.1764 76314.05 Crystal River 1650 Citrus CITRUS SWFWMD Floating 0 224.57 Crystal River 1650 Citrus CITRUS SWFWMD Lyngbya spp. 0.996 18732.29 Crystal, Lake 31 Polk POLK SWFWMD Floating 0 81.39 C-XVIII watershed 150 SFWMD PALM BEACH SFWMD Azolla pinnata 31.2 8250.21 Cypress Lake 21 AA VOLUSIA SJRWMD Typha spp. 0.75 187.48 10

Cypress Lake 4097 SFWMD OSCEOLA SFWMD Floating 116.58 17443.88 Cypress Lake 4097 SFWMD OSCEOLA SFWMD Hydrilla 385.59 98027.56 Cypress Lake 4097 SFWMD OSCEOLA SFWMD Typha spp. 30 1749.58 Daisy, Lake 133 Polk POLK SWFWMD Floating 0 447.74 Dal Housie, Lake 243 Lake LAKE SJRWMD Hydrilla 1.174 1492.27 Damon Lake 282 Highlands HIGHLANDS SWFWMD Floating 0 101.92 Damon Lake 282 Highlands HIGHLANDS SWFWMD Oxycaryum cubense 1 183.94 David, Lake 50 Lake LAKE SJRWMD Floating 0 303.51 David, Lake 50 Lake LAKE SJRWMD Hydrilla 0 36.57 Davis Lake 9 AA BAY NWFWMD Floating 1 137.26 Davis Lake 9 AA BAY NWFWMD Typha spp. 3 243.15 Dead River 148 Lake LAKE SJRWMD Floating 3.5 1479.66 Deaton, Lake 778 SWFWMD SUMTER SWFWMD Nuphar advena 0.5 255.73 Deer Lake 125 Polk POLK SWFWMD Floating 0 107.26 Deer Point Lake 5000 AA BAY NWFWMD Floating 1.1 362.84 Deer Point Lake 5000 AA BAY NWFWMD Oxycaryum cubense 1 142.15 Deeson, Lake 117 Polk POLK SWFWMD Floating 0 68.2 Denham, Lake 269 Lake LAKE SJRWMD Floating 0 106.18 Denham, Lake 269 Lake LAKE SJRWMD Hydrilla 0.303 292.65 Dexter, Lake 1902 AA VOLUSIA SJRWMD Floating 255 14535 Dias, Lake 711 AA VOLUSIA SJRWMD Floating 1.75 922.09 Dias, Lake 711 AA VOLUSIA SJRWMD Panicum repens 0.25 173 Dina, Lake 62 Lake LAKE SJRWMD Floating 0 13.32 Dinner Lake 379 Highlands HIGHLANDS SWFWMD Floating 0 152.88 Disston, Lake 1844 FL Env. FLAGLER SJRWMD Floating 12 929.08 Disston, Lake 1844 FL Env. FLAGLER SJRWMD Panicum repens 3 264.26 Disston, Lake 1844 FL Env. FLAGLER SJRWMD Typha spp. 10 819.94 Dora, Lake 4475 Lake LAKE SJRWMD Floating 3.75 1687.9 Dora, Lake 4475 Lake LAKE SJRWMD Hydrilla 0.939 1131.14 Dora, Lake 4475 Lake LAKE SJRWMD Typha spp. 5 765.06 Dorr, Lake 1533 Lake LAKE SJRWMD Floating 5 1025.52 Dorr, Lake 1533 Lake LAKE SJRWMD Oxycaryum cubense 2 140.83 Down, Lake 872 Orange ORANGE SFWMD Hydrilla 4.2 6221.39 Down, Lake 872 Orange ORANGE SFWMD Typha spp. 1 257.73 Eagle Lake 651 Polk POLK SWFWMD Hydrilla 0 235.46 East Lake Tohopekaliga 12546 SFWMD OSCEOLA SFWMD Floating 87.85 16122.37 East Lake Tohopekaliga 12546 SFWMD OSCEOLA SFWMD Hydrilla 3.72 4229.46 East Lake Tohopekaliga 12546 SFWMD OSCEOLA SFWMD Oxycaryum cubense 10.96 2453.76 East Lake Tohopekaliga 12546 SFWMD OSCEOLA SFWMD Potamogeton illinoensis 167.4 67438.63 Eaton, Lake 307 FL Env. MARION SJRWMD Floating 1.301 1170.66 Echo, Lake 69 Polk POLK SWFWMD Hydrilla 4.5 2518.45 Econlockhatchee River 120 AA SEMINOLE SJRWMD Trees (blocking navigation) 0 1774.28 Econlockhatchee River 120 SJRWMD SEMINOLE SJRWMD Hymenachne amplexicaulis 7.91 2687.74 Ed Medard Reservoir 647 SWFWMD HILLSBOROUGH SWFWMD Floating 116 10824.83 11

Eglin Lakes FMA 75 AA OKALOOSA NWFWMD Myriophyllum laxum/pinnatum 1.5 962.42 Eglin Lakes FMA 75 AA OKALOOSA NWFWMD Panicum repens 2.5 360.32 Elbert, Lake 173 Polk POLK SWFWMD Hydrilla 174 111718.71 Ella Lake 467 Lake LAKE SJRWMD Floating 0 20.46 Ella Lake 467 Lake LAKE SJRWMD Hydrilla 0 26.67 Eloise, Lake 1160 Polk POLK SWFWMD Floating 4 1688.51 Eloise, Lake 1160 Polk POLK SWFWMD Hydrilla 34.5 12296.97 Emma, Lake 175 Lake LAKE SJRWMD Floating 0 218.16 Emma, Lake 175 Lake LAKE SJRWMD Hydrilla 0 75.86 Eustis, Lake 7806 Lake LAKE SJRWMD Floating 18.875 6462.27 Eustis, Lake 7806 Lake LAKE SJRWMD Hydrilla 1.228 4522.67 Eustis, Lake 7806 Lake LAKE SJRWMD Typha spp. 0.75 291.6 Eva Lake 176 Polk POLK SWFWMD Hydrilla 6.5 2831.04 Fairview, Lake 401 AA ORANGE SJRWMD Hydrilla 9.355 6004.61 Fairview, Lake 401 AA ORANGE SJRWMD Nymphoides cristata 9.15 4336.26 Fairview, Lake 401 AA ORANGE SJRWMD Panicum repens 0.25 201.45 Fannie, Lake 829 Polk POLK SWFWMD Floating 37.5 10609 Fannie, Lake 829 Polk POLK SWFWMD Hydrilla 2.5 979.54 Fannie, Lake 829 Polk POLK SWFWMD Typha spp. 8 1162.26 Fish Lake 221 SFWMD OSCEOLA SFWMD Floating 0.73 207.21 Fox Lake 165 Brevard BREVARD SJRWMD Floating 11 1079.31 Fox Lake 165 Brevard BREVARD SJRWMD Nuphar advena 5 2252.41 Fox Lake 165 Brevard BREVARD SJRWMD Panicum repens 7 793.53 Fox Lake 165 Brevard BREVARD SJRWMD Typha spp. 14 1336.62 Francis, Lake 539 Highlands HIGHLANDS SWFWMD Cyperus prolifer 1 420.76 Francis, Lake 539 Highlands HIGHLANDS SWFWMD Floating 0 305.76 Frank Brown Park FMA 3 AA BAY NWFWMD Nuphar advena 1.6 168.3 Frank Brown Park FMA 3 AA BAY NWFWMD Typha spp. 0.25 97.39 Ft. Meade Pits 28 Polk POLK SWFWMD Floating 2 720.23 Gant, Lake and Canal 150 SWFWMD SUMTER SWFWMD Floating 18 1473.7 Gant, Lake and Canal 150 SWFWMD SUMTER SWFWMD Hydrilla 4 1681.43 Gant, Lake and Canal 150 SWFWMD SUMTER SWFWMD Tussocks 6.06 1321.03 Gant, Lake and Canal 150 SWFWMD SUMTER SWFWMD Typha spp. 2.13 318.47 Garfield, Lake 655 Polk POLK SWFWMD Floating 11.5 4959.03 Gatlin, Lake 63 Orange ORANGE SJRWMD Hydrilla 0 401.87 Gator, Lake 114 Polk POLK SWFWMD Floating 6.5 2445.38 Gentry, Lake 1791 SFWMD OSCEOLA SFWMD Floating 15.4 2770.02 Gentry, Lake 1791 SFWMD OSCEOLA SFWMD Oxycaryum cubense 7.67 1931.61 Georges Lake 816 FL Env. PUTNAM SJRWMD Floating 0.5 429.33 Gibson, Lake 474 Polk POLK SWFWMD Floating 52 10777.57 Gibson, Lake 474 Polk POLK SWFWMD Hydrilla 115.3 37235.28 Gleason, Lake 91 AA VOLUSIA SJRWMD Panicum repens 0 56.1 Gleason, Lake 91 AA VOLUSIA SJRWMD Typha spp. 1.5 402.2 Glenada, Lake 150 Highlands HIGHLANDS SWFWMD Floating 1 183.92 12

Glenada, Lake 150 Highlands HIGHLANDS SWFWMD Hydrilla 0 978.84 Grady Lake 183 Hillsborough HILLSBOROUGH SWFWMD Floating 62.5 8862.69 Grandin, Lake 350 FL Env. PUTNAM SJRWMD Floating 1.33 616.9 Grassy Lake 59 Polk POLK SWFWMD Floating 0.5 238.8 Grassy Lake 59 Polk POLK SWFWMD Hydrilla 28 14590.77 Grassy Lake 59 Polk POLK SWFWMD Typha spp. 0 119.36 Griffin, Lake 17382 Lake LAKE SJRWMD Floating 51.75 11698.06 Griffin, Lake 17382 Lake LAKE SJRWMD Hydrilla 191.021 70055.93 Griffin, Lake 17382 Lake LAKE SJRWMD Typha spp. 1 303.17 Griffin, Lake 17382 SJRWMD LAKE SJRWMD Floating 20.5 5958.26 Griffin, Lake 17382 SJRWMD LAKE SJRWMD Hydrilla 87.33 38513.44 Griffin, Lake 17382 SJRWMD LAKE SJRWMD Typha spp. 13 2257.76 Guana River 1800 FL Env. SAINT JOHNS SJRWMD Floating 0.33 115.37 Guana River 1800 FL Env. SAINT JOHNS SJRWMD Typha spp. 7.5 866.14 Haines Creek 780 Lake LAKE SJRWMD Floating 12.5 3525.53 Haines Creek 780 Lake LAKE SJRWMD Hydrilla 3.131 2760.41 Haines Creek 780 Lake LAKE SJRWMD Nuphar advena 0.25 194.23 Haines Creek 780 Lake LAKE SJRWMD Typha spp. 1 166.82 Haines, Lake 716 Polk POLK SWFWMD Floating 1.5 927.74 Haines, Lake 716 Polk POLK SWFWMD Hydrilla 0 456.5 Hall, Lake 172 AA LEON NWFWMD Azolla pinnata 0.75 291.97 Hall, Lake 172 AA LEON NWFWMD Floating 0.5 128.98 Halls River 100 Citrus CITRUS SWFWMD Filamentous algae 0.076 3022.64 Hamilton, Lake 2126 Polk POLK SWFWMD Floating 7.5 4607.81 Hamilton, Lake 2126 Polk POLK SWFWMD Nuphar advena 0.5 271.52 Hamilton, Lake 2126 Polk POLK SWFWMD Typha spp. 0.5 364.85 Hancock, Lake 4519 Polk POLK SWFWMD Floating 23.5 5418.11 Hardee Lakes FMA 374 AA HARDEE SWFWMD Floating 2.5 625.64 Hardee Lakes FMA 374 AA HARDEE SWFWMD Hydrilla 102.2 25944.38 Hardee Lakes FMA 374 AA HARDEE SWFWMD Panicum repens 2.5 473.84 Hardee Lakes FMA 374 AA HARDEE SWFWMD Typha spp. 1 187.11 Harney, Lake 6058 AA VOLUSIA SJRWMD Floating 52 5819.22 Harney, Lake 6058 AA VOLUSIA SJRWMD Hydrilla 22.55 12396.75 Harney, Lake 6058 AA VOLUSIA SJRWMD Ludwigia grandiflora 39.01 10080.55 Harris, Lake 13788 Lake LAKE SJRWMD Floating 60.875 14486.12 Harris, Lake 13788 Lake LAKE SJRWMD Hydrilla 440.914 316420.15 Harris, Lake 13788 Lake LAKE SJRWMD Panicum repens 4 978.8 Harris, Lake 13788 Lake LAKE SJRWMD Typha spp. 0.625 286.42 Hart, Lake 1850 SFWMD ORANGE SFWMD Floating 3.67 560.66 Hart, Lake 1850 SFWMD ORANGE SFWMD Oxycaryum cubense 14.28 3009.2 Hartridge, Lake 434 Polk POLK SWFWMD Floating 0 160.89 Hartridge, Lake 434 Polk POLK SWFWMD Hydrilla 2.5 858.06 Hatchineha, Lake 6665 Polk OSCEOLA SFWMD Floating 22 4661.19 Hatchineha, Lake 6665 SFWMD OSCEOLA SFWMD Floating 86.43 15706.75 13

Hatchineha, Lake 6665 SFWMD OSCEOLA SFWMD Hydrilla 444.98 543650.24 Hatchineha, Lake 6665 SFWMD OSCEOLA SFWMD Typha spp. 90 5217.29 Helen, Lake 44 AA VOLUSIA SJRWMD Hydrilla 0 55 Helena Run 38 Lake LAKE SJRWMD Floating 6 1418.15 Helena Run 38 Lake LAKE SJRWMD Hydrilla 0.474 544.12 Helena Run 38 Lake LAKE SJRWMD Hydrocotyle spp. 4 225.1 Hellen-Blazes, Lake 381 SJRWMD BREVARD SJRWMD Floating 19 2584.4 Henry, Lake 64 Highlands HIGHLANDS SWFWMD Floating 0 254.8 Henry, Lake 64 Highlands HIGHLANDS SWFWMD Oxycaryum cubense 1 195.21 Hiawatha, Lake 48 Lake LAKE SJRWMD Floating 2 902.21 Hillsborough River 800 Hillsborough HILLSBOROUGH SWFWMD Floating 394.75 69535.76 Hillsborough River 800 Hillsborough HILLSBOROUGH SWFWMD Hydrilla 29.23 30807.84 Holdens Pond 80 FL Env. ALACHUA SJRWMD Floating 0 400 Hollingsworth, Lake 356 Polk POLK SWFWMD Floating 0 372.08 Holly Lake 98 Lake LAKE SJRWMD Floating 0 66.63 Holly Lake 98 Lake LAKE SJRWMD Hydrilla 0.171 74.47 Homosassa River 800 Citrus CITRUS SWFWMD Filamentous algae 0 662.44 Homosassa River 800 Citrus CITRUS SWFWMD Lyngbya spp. 0 720.62 Howard, Lake 628 Polk POLK SWFWMD Floating 1.75 525.91 Howard, Lake 628 Polk POLK SWFWMD Hydrilla 24 17057.52 Hungryland WEA 18 AA MARTIN SFWMD Ludwigia octovalvis/peruviana 1 96.42 Hungryland WEA 18 AA MARTIN SFWMD Nuphar advena 2 312.3 Hungryland WEA 18 AA MARTIN SFWMD Panicum repens 1 108.59 Hungryland WEA 18 AA MARTIN SFWMD Typha spp. 0.25 47.77 Hunt, Lake 58 Lake LAKE SJRWMD Floating 0 66.88 Hunter, Lake 100 Polk POLK SWFWMD Floating 1 164.19 Hunter, Lake 302 SWFWMD HERNANDO SWFWMD Floating 3 996.57 Huntley, Lake 500 Highlands HIGHLANDS SWFWMD Cyperus prolifer 2 213.37 Huntley, Lake 500 Highlands HIGHLANDS SWFWMD Floating 2 367.86 Huntley, Lake 500 Highlands HIGHLANDS SWFWMD Hydrilla 0 2178.81 Huntley, Lake 500 Highlands HIGHLANDS SWFWMD Oxycaryum cubense 2 367.86 Hurricane Lake FMA 350 AA OKALOOSA NWFWMD Hydrilla 1 639.51 Iamonia, Lake 5757 AA LEON NWFWMD Floating 261.5 22053.05 Iamonia, Lake 5757 AA LEON NWFWMD Limnobium spongia 5 851.22 Iamonia, Lake 5757 AA LEON NWFWMD Oxycaryum cubense 14 1698.33 Ida, Lake 159 Palm Beach PALM BEACH SFWMD Floating 15 3270.15 Ida, Lake 159 Palm Beach PALM BEACH SFWMD Hydrilla 5.523 2851.7 Idylwild, Lake 102 Polk POLK SWFWMD Floating 0 26.82 Idylwild, Lake 102 Polk POLK SWFWMD Hydrilla 0 147.72 Idylwild, Lake 102 Polk POLK SWFWMD Typha spp. 0.5 308.26 Isleworth Lake 56 Orange ORANGE SFWMD Hydrilla 8.85 9356.41 Isleworth Lake 56 Orange ORANGE SFWMD Hygrophila polysperma 0.15 222.14 Istokpoga, Lake 27692 AA HIGHLANDS SFWMD Typha spp. 400 33549.61 Istokpoga, Lake 27692 Highlands HIGHLANDS SFWMD Colocasia esculenta 6 944.73 14

Istokpoga, Lake 27692 Highlands HIGHLANDS SFWMD Floating 1032 127075.79 Istokpoga, Lake 27692 Highlands HIGHLANDS SFWMD Hydrilla 2622.5 1127384.4 Istokpoga, Lake 27692 Highlands HIGHLANDS SFWMD Hymenachne amplexicaulis 2.2 671.63 Istokpoga, Lake 27692 Highlands HIGHLANDS SFWMD Nuphar advena 8.8 597.62 Ivanhoe, Lake 125 Orlando ORANGE SJRWMD Hydrilla 46.8 21019.5 Jackson Creek 50 Highlands HIGHLANDS SWFWMD Cabomba caroliniana 12 3214.32 Jackson Creek 50 Highlands HIGHLANDS SWFWMD Floating 5 476.91 Jackson, Lake 1020 SFWMD OSCEOLA SFWMD Floating 141.18 17015.44 Jackson, Lake 1020 SFWMD OSCEOLA SFWMD Hydrilla 657.71 290528.42 Jackson, Lake 3400 Highlands HIGHLANDS SWFWMD Floating 1 721.42 Jackson, Lake 4000 AA LEON NWFWMD Floating 8 1010.21 Jackson, Lake 4000 AA LEON NWFWMD Oxycaryum cubense 13 1982.85 Jackson, Lake 4000 AA LEON NWFWMD Panicum repens 0.5 103.77 Jessamine, Lake 306 Orange ORANGE SJRWMD Hydrilla 4.75 6070.13 Jessie, Lake 190 Polk POLK SWFWMD Floating 0 79.2 Jessie, Lake 190 Polk POLK SWFWMD Hydrilla 52.5 32495.74 Jessie, Lake 190 Polk POLK SWFWMD Typha spp. 3.5 1348.08 Jessup, Lake 10011 AA SEMINOLE SJRWMD Floating 218 23118.73 Jessup, Lake 10011 AA SEMINOLE SJRWMD Phragmites australis 1.25 382.86 Jessup, Lake 10011 AA SEMINOLE SJRWMD Typha spp. 1.5 346.07 John Wood, Lake 250 Polk POLK SWFWMD Floating 8 1460.41 John Wood, Lake 250 Polk POLK SWFWMD Hydrilla 10.5 4672.28 Johns Lake 2417 Lake ORANGE SJRWMD Floating 35.33 5880.08 Johns Lake 2417 Lake ORANGE SJRWMD Hydrilla 498.817 199340.9 Johns Lake 2417 Lake ORANGE SJRWMD Oxycaryum cubense 3.125 593.01 Josephine Creek 20 Highlands HIGHLANDS SWFWMD Floating 15 1407.43 Josephine, Lake 1236 Highlands HIGHLANDS SWFWMD Floating 142 12573.33 Josephine, Lake 1236 Highlands HIGHLANDS SWFWMD Oxycaryum cubense 9 1035.26 Juliana, Lake 926 Polk POLK SWFWMD Floating 0.5 205.41 June-In-Winter, Lake 3504 Highlands HIGHLANDS SWFWMD Floating 3 1176.25 June-In-Winter, Lake 3504 Highlands HIGHLANDS SWFWMD Hydrilla 1 1316.74 June-In-Winter, Lake 3504 Highlands HIGHLANDS SWFWMD Oxycaryum cubense 1 222.54 Junietta, Lake 40 Lake LAKE SJRWMD Hydrilla 3.121 3683.53 Juniper Lake FMA 670 AA WALTON NWFWMD Bacopa caroliniana 10 5904.6 Juniper Lake FMA 670 AA WALTON NWFWMD Oxycaryum cubense 0 270 Karick Lake FMA 58 AA OKALOOSA NWFWMD Hydrilla 1 609.51 Kissimmee River 4240 SFWMD OSCEOLA SFWMD Floating 1604.97 153280.19 Kissimmee River 4240 SFWMD OSCEOLA SFWMD Hymenachne amplexicaulis 317.46 34561.38 Kissimmee River 4240 SFWMD OSCEOLA SFWMD Ludwigia octovalvis/peruviana 245 31662.63 Kissimmee River 4240 SFWMD OSCEOLA SFWMD Oxycaryum cubense 0 1074.02 Kissimmee, Lake 34948 Polk OSCEOLA SFWMD Floating 29.5 8454.62 Kissimmee, Lake 34948 Polk OSCEOLA SFWMD Hymenachne amplexicaulis 0 139.53 Kissimmee, Lake 34948 Polk OSCEOLA SFWMD Nuphar advena 1.5 822.91 Kissimmee, Lake 34948 Polk OSCEOLA SFWMD Panicum repens 0.75 444.04 15

Kissimmee, Lake 34948 SFWMD OSCEOLA SFWMD Floating 941.46 134395.1 Kissimmee, Lake 34948 SFWMD OSCEOLA SFWMD Hydrilla 1331.14 717906.06 Kissimmee, Lake 34948 SFWMD OSCEOLA SFWMD Limnobium spongia 336.75 32557.46 Kissimmee, Lake 34948 SFWMD OSCEOLA SFWMD Oxycaryum cubense 862.797 75785.51 Kissimmee, Lake 34948 SFWMD OSCEOLA SFWMD Typha spp. 62.47 4507.03 Lafayette Lake 2000 AA LEON NWFWMD Oxycaryum cubense 25.5 3249.6 Lang, Lake 86 AA HAMILTON SRWMD Ceratophyllum demersum 1.56 1297.8 Lang, Lake 86 AA HAMILTON SRWMD Hydrilla 5.16 8458.4 Laurie Lake 7 AA GADSDEN NWFWMD Salvinia molesta 2 592.92 Lawne, Lake 156 AA ORANGE SJRWMD Floating 0.25 206.89 Lawne, Lake 156 AA ORANGE SJRWMD Hydrilla 143.25 73486.05 Lawne, Lake 156 AA ORANGE SJRWMD Typha spp. 0.875 305.87 Lelia, Lake 165 Highlands HIGHLANDS SWFWMD Hydrilla 0 173.52 Lena, Lake 207 Polk POLK SWFWMD Hydrilla 1.25 772.25 Letta Lake 478 Highlands HIGHLANDS SWFWMD Floating 0 257.2 Letta Lake 478 Highlands HIGHLANDS SWFWMD Hydrilla 0 173.52 Letta Lake 478 Highlands HIGHLANDS SWFWMD Oxycaryum cubense 1 222.56 Lindsey, Lake 137 SWFWMD HERNANDO SWFWMD Floating 10 1223.4 Link Lake 28 Polk POLK SWFWMD Floating 0.5 224.16 Link Lake 28 Polk POLK SWFWMD Hydrilla 0 94.18 Little Fish Lake 23 Orange ORANGE SJRWMD Cyperus prolifer 1.99 690.48 Little Fish Lake 23 Orange ORANGE SJRWMD Floating 0.125 28.42 Little Lake Sawgrass 74 SJRWMD BREVARD SJRWMD Floating 11 1614.34 Little Orange Lake 818 FL Env. ALACHUA SJRWMD Floating 8 775.38 Little Red Lake 329 Highlands HIGHLANDS SWFWMD Floating 0 286.72 Livingston, Lake 1203 Polk POLK SFWMD Floating 15 8593.12 Livingston, Lake 1203 Polk POLK SFWMD Hymenachne amplexicaulis 0.25 299.59 Lizzie, Lake 792 SFWMD OSCEOLA SFWMD Oxycaryum cubense 4.1 618.33 Lochloosa, Lake 5705 AA ALACHUA SJRWMD Floating 150.33 17613.41 Lochloosa, Lake 5705 AA ALACHUA SJRWMD Tussocks 3.25 303.21 Lochloosa, Lake 5705 AA ALACHUA SJRWMD Typha spp. 19.75 2243.7 Lotela, Lake 802 Highlands HIGHLANDS SWFWMD Floating 0 257.2 Lotela, Lake 802 Highlands HIGHLANDS SWFWMD Hydrilla 0 231.36 Lotela, Lake 802 Highlands HIGHLANDS SWFWMD Oxycaryum cubense 1 222.56 Louisa Lake 3364 Lake LAKE SJRWMD Floating 0 200.32 Louise, Lake 145 Orange ORANGE SFWMD Hydrilla 58.73 75489.94 Lower Myakka Lake 640 SWFWMD SARASOTA SWFWMD Floating 70 7070.47 Lowery Lake 1263 FL Env. CLAY SJRWMD Panicum repens 1.5 274.49 Loxahatchee River 100 SFWMD PALM BEACH SFWMD Floating 20.5 3938.4 Lucy, Lake 335 Lake LAKE SJRWMD Floating 0 80.3 Lullwater, Lake 32 AA BAY NWFWMD Floating 6 1101.12 Lullwater, Lake 32 AA BAY NWFWMD Hydrilla 0.2 102.2 Lullwater, Lake 32 AA BAY NWFWMD Nuphar advena 1.5 213.97 Lulu, Lake 301 Polk POLK SWFWMD Floating 3 557.7 16

Lulu, Lake 301 Polk POLK SWFWMD Hydrilla 445 176734.41 Macy, Lake 20 AA VOLUSIA SJRWMD Floating 0 55 Maggiore, Lake 380 AA PINELLAS SWFWMD Floating 4 458.7 Maggiore, Lake 380 AA PINELLAS SWFWMD Hydrilla 0.422 506.55 Maggiore, Lake 380 AA PINELLAS SWFWMD Typha spp. 7 776.35 Magnolia Lake 205 FL Env. CLAY SJRWMD Panicum repens 0.01 50.17 Maitland, Lake 451 Winter Park ORANGE SJRWMD Hydrilla 7.55 4480.09 Manatee River 3756 SWFWMD MANATEE SWFWMD Floating 124 11803.63 Manatee River 3756 SWFWMD MANATEE SWFWMD Urochloa mutica 2.13 387.99 Mann, Lake 244 AA ORANGE SFWMD Panicum repens 0.75 218.54 Mann, Lake 244 AA ORANGE SFWMD Typha spp. 0.25 93.45 Mariam, Lake 199 Polk POLK SWFWMD Floating 0 775.05 Marian, Lake 5739 SFWMD OSCEOLA SFWMD Floating 84.37 12456.5 Mariana, Lake 500 Polk POLK SWFWMD Floating 2 767.69 Marion, Lake 2990 Polk POLK SFWMD Floating 11.5 3591.09 Martha, Lake 85 Polk POLK SFWMD Hydrilla 0 107.26 Mary Jane, Lake 1158 SFWMD ORANGE SFWMD Floating 17.48 1860.52 Mary Jane, Lake 1158 SFWMD ORANGE SFWMD Oxycaryum cubense 32.002 5475.13 Mattie, Lake 1078 Polk POLK SWFWMD Floating 15 2694.56 Mattie, Lake 1078 Polk POLK SWFWMD Typha spp. 1 299.04 Maude 55 Polk POLK SWFWMD Floating 0 107.26 Maude 55 Polk POLK SWFWMD Hydrilla 0 200.33 May, Lake 44 Polk POLK SWFWMD Floating 3.25 1072.82 May, Lake 44 Polk POLK SWFWMD Hydrilla 88 20716.54 May, Lake 44 Polk POLK SWFWMD Nymphaea spp. (exotic) 1.5 510.96 McKethan Lake 57 SWFWMD HERNANDO SWFWMD Floating 4 560.34 McLeod, Lake 512 Polk POLK SWFWMD Floating 0 107.26 Mecca Farms 354 AA PALM BEACH SFWMD Azolla pinnata 80 8637.65 Merritt's Mill Pond 202 AA JACKSON NWFWMD Floating 2 380.52 Miccosukee, Lake 6276 AA JEFFERSON NWFWMD Limnobium spongia 40 5215.17 Miccosukee, Lake 6276 AA JEFFERSON NWFWMD Oxycaryum cubense 9 1983.89 Middle Lake 215 SWFWMD PASCO SWFWMD Floating 44.53 3173.65 Middle Lake 215 SWFWMD PASCO SWFWMD Oxycaryum cubense 4.8 383.06 Miller Lake 8 AA VOLUSIA SJRWMD Floating 0.875 240.19 Miller Lake 8 AA VOLUSIA SJRWMD Oxycaryum cubense 0.5 42.59 Miller Lake 8 AA VOLUSIA SJRWMD Typha spp. 0.5 56.34 Minnehaha, Lake 2261 Lake LAKE SJRWMD Floating 0.625 706.37 Minnehaha, Lake 96 Winter Park ORANGE SJRWMD Hydrilla 1.12 939.23 Minneola, Lake 1888 Lake LAKE SJRWMD Floating 0 167.17 Minneola, Lake 1888 Lake LAKE SJRWMD Hydrilla 0 204.83 Minzie, Lake 22 Polk POLK SWFWMD Floating 0 119.36 Minzie, Lake 22 Polk POLK SWFWMD Hydrilla 0 46.51 Mirror, Lake 123 Polk POLK SWFWMD Hydrilla 14 4726.18 Mizell, Lake 62 Winter Park ORANGE SJRWMD Floating 0.11 310.45 17

Mizell, Lake 62 Winter Park ORANGE SJRWMD Hydrilla 0.75 769.3 Monroe, Lake 9406 AA VOLUSIA SJRWMD Floating 753.5 85411.29 Monroe, Lake 9406 AA VOLUSIA SJRWMD Tussocks 2 490.27 Montgomery Lake 36 AA COLUMBIA SRWMD Ceratophyllum demersum 1 688.65 Montgomery Lake 36 AA COLUMBIA SRWMD Floating 0.25 156.67 Montgomery Lake 36 AA COLUMBIA SRWMD Ludwigia grandiflora 3 412.86 Mountain Lake 127 SWFWMD HERNANDO SWFWMD Floating 8 981.69 Mud Lake 133 Polk POLK SWFWMD Floating 2 330.05 Munson, Lake 255 AA LEON NWFWMD Floating 8.5 718.46 Myakka River 675 SWFWMD SARASOTA SWFWMD Floating 123.25 17128.19 Mystic Lake 47 AA MADISON SRWMD Floating 2 349.64 Ned, Lake 74 Polk POLK SWFWMD Floating 0 465.35 Ned, Lake 74 Polk POLK SWFWMD Hydrilla 0 200.78 New River 150 AA UNION SRWMD Floating 2 312.47 Newnan, Lake 7427 FL Env. ALACHUA SJRWMD Colocasia esculenta 0 100 Newnan, Lake 7427 FL Env. ALACHUA SJRWMD Floating 208.56 29236.55 Newnan, Lake 7427 FL Env. ALACHUA SJRWMD Hydrilla 0.001 77.17 Newnan, Lake 7427 FL Env. ALACHUA SJRWMD Tussocks 2.5 2340 Newnan, Lake 7427 FL Env. ALACHUA SJRWMD Typha spp. 0 125 Nina, Lake 8 Winter Park ORANGE SJRWMD Hydrilla 1.9 978.22 North Lake Talmadge 121 AA VOLUSIA SJRWMD Floating 0 82.5 North Lake Talmadge 121 AA VOLUSIA SJRWMD Hydrilla 1.82 1513.8 North Lake Talmadge 121 AA VOLUSIA SJRWMD Typha spp. 6.5 772.94 Ocean Pond 1774 AA BAKER SRWMD Panicum repens 1.5 509.77 Okahumpka, Lake 670 SWFWMD SUMTER SWFWMD Amaranthus albus 0.53 147.1 Okahumpka, Lake 670 SWFWMD SUMTER SWFWMD Floating 2 403.46 Okahumpka, Lake 670 SWFWMD SUMTER SWFWMD Hydrilla 0 1687.11 Okahumpka, Lake 670 SWFWMD SUMTER SWFWMD Ludwigia octovalvis/peruviana 2.6 171.95 Okahumpka, Lake 670 SWFWMD SUMTER SWFWMD Nymphaea mexicana 0.75 400.1 Okahumpka, Lake 670 SWFWMD SUMTER SWFWMD Oxycaryum cubense 3.16 277.71 Okahumpka, Lake 670 SWFWMD SUMTER SWFWMD Typha spp. 0.78 302.99 Okeechobee, Lake 448000 AA OKEECHOBEE SFWMD Floating 9547.3 1261343.4 Okeechobee, Lake 448000 AA OKEECHOBEE SFWMD Imperata cylindrica 21 4577.59 Okeechobee, Lake 448000 AA OKEECHOBEE SFWMD Ludwigia leptocarpa 28 5128.95 Okeechobee, Lake 448000 AA OKEECHOBEE SFWMD Nymphoides cristata 29.5 16065 Okeechobee, Lake 448000 AA OKEECHOBEE SFWMD Phragmites australis 14 1998.07 Okeechobee, Lake 448000 AA OKEECHOBEE SFWMD Tussocks 13.5 2797.28 Okeechobee, Lake 448000 AVC OKEECHOBEE SFWMD Floating 140 28974.63 Okeechobee, Lake 448000 AVC OKEECHOBEE SFWMD Phragmites australis 100 23221.21 Okeechobee, Lake 448000 SFWMD OKEECHOBEE SFWMD Floating 0 13038.87 Okeechobee, Lake 448000 SFWMD OKEECHOBEE SFWMD Luziola subintegra 634.23 90285.61 Okeechobee, Lake 448000 SFWMD OKEECHOBEE SFWMD Melaleuca quinquenervia 90.7 52713.29 Okeechobee, Lake 448000 SFWMD OKEECHOBEE SFWMD Panicum repens 196 23687.92 Okeechobee, Lake 448000 SFWMD OKEECHOBEE SFWMD Typha spp. 298 23273.62 18

Okeechobee, Lake 448000 USACE OKEECHOBEE SFWMD Floating 11122 1579959.9 Okeechobee, Lake 448000 USACE OKEECHOBEE SFWMD Tussocks 10.2 1480.14 Oklawaha River 297 FL Env. MARION SJRWMD Floating 21 1581.33 Olivia, Lake 86 Highlands HIGHLANDS SWFWMD Hydrilla 0 254.8 Orange Lake 12706 FL Env. ALACHUA SRWMD Floating 26.66 4995.33 Orange Lake 12706 FL Env. ALACHUA SRWMD Salix spp. 32.49 5709.59 Orange Lake 12706 FL Env. ALACHUA SRWMD Tussocks 50.25 33558.67 Osborne, Lake 356 Palm Beach PALM BEACH SFWMD Alternanthera philoxeroides 0.8 296.3 Osborne, Lake 356 Palm Beach PALM BEACH SFWMD Floating 98 14220.25 Osborne, Lake 356 Palm Beach PALM BEACH SFWMD Hydrilla 27.15 19365.82 Osborne, Lake 356 Palm Beach PALM BEACH SFWMD Nymphoides cristata 4 1476.78 Osborne, Lake 356 Palm Beach PALM BEACH SFWMD Panicum repens 0.5 337.74 Osceola, Lake 157 Winter Park ORANGE SJRWMD Hydrilla 0.2 529.27 Otis Lake 144 Polk POLK SWFWMD Floating 0.5 741.22 Otis Lake 144 Polk POLK SWFWMD Hydrilla 6 2500.65 Palatlakaha River 672 Lake LAKE SJRWMD Floating 2.125 1595.85 Palatlakaha River 672 Lake LAKE SJRWMD Hydrilla 0 30.67 Palatlakaha River 672 Lake LAKE SJRWMD Oxycaryum cubense 1.125 345.8 Palatlakaha, Lake 101 Lake LAKE SJRWMD Floating 0.25 439.45 Palestine Lake 911 AA UNION SRWMD Panicum repens 0.5 255.08 Panasoffkee, Lake 4460 SWFWMD SUMTER SWFWMD Ceratophyllum demersum 2.6 1516.3 Panasoffkee, Lake 4460 SWFWMD SUMTER SWFWMD Floating 194 16926.14 Panasoffkee, Lake 4460 SWFWMD SUMTER SWFWMD Hydrilla 0 873.58 Panasoffkee, Lake 4460 SWFWMD SUMTER SWFWMD Hydrocotyle spp. 0 87.71 Panasoffkee, Lake 4460 SWFWMD SUMTER SWFWMD Potamogeton illinoensis 4.75 14156.26 Panasoffkee, Lake 4460 SWFWMD SUMTER SWFWMD Trees (blocking navigation) 0 3011.75 Panasoffkee, Lake 4460 SWFWMD SUMTER SWFWMD Vallisneria americana 4.25 12727.6 Pansy, Lake 50 Polk POLK SWFWMD Hydrilla 0 173.47 Parker, Lake 2272 Polk POLK SWFWMD Floating 37 8992.82 Parker, Lake 2272 Polk POLK SWFWMD Hydrilla 792.75 271331.93 Parker, Lake 2272 Polk POLK SWFWMD Typha spp. 1 190.68 Peace River 2973 SWFWMD HARDEE SWFWMD Floating 62 4218.11 Peace River 2973 SWFWMD HARDEE SWFWMD Phyllanthus Fluitans 16 3724.16 Peacock Lake 148 AA SUWANNEE SRWMD Floating 7.5 1403.23 Pierce, Lake 3729 Polk POLK SFWMD Floating 9.5 4762.07 Pierce, Lake 3729 Polk POLK SFWMD Hydrilla 15.75 3699.62 Pine, Lake 35 Palm Beach PALM BEACH SFWMD Floating 9 1477.91 Pine, Lake 35 Palm Beach PALM BEACH SFWMD Hydrilla 17.27 14306.33 Pioneer Lake 93 Highlands HIGHLANDS SWFWMD Hydrilla 0 143.36 Placid, Lake 3320 Highlands HIGHLANDS SWFWMD Floating 1 677.44 Pocket Lake 126 Orange ORANGE SFWMD Floating 0.5 125.66 Pocket Lake 126 Orange ORANGE SFWMD Hydrilla 1.7 1443.72 Pocket Lake 126 Orange ORANGE SFWMD Typha spp. 1.5 127.75 Poinsett, Lake 4334 AA BREVARD SJRWMD Floating 608 76197.76 19

Poinsett, Lake 4334 AA BREVARD SJRWMD Hydrilla 0.71 1133.45 Poinsett, Lake 4334 AA BREVARD SJRWMD Typha spp. 6 1990.73 Poinsett, Lake 4334 Brevard BREVARD SJRWMD Floating 52.25 4275.39 Pope Duval East FMA 14 FL Env. DUVAL SJRWMD Salvinia minima 6 871.41 Prima Vista, Lake 17 AA ORANGE SJRWMD Floating 0 124.85 Puzzle Lake 1826 AA SEMINOLE SJRWMD Floating 82 10597.9 Rainbow River 150 SWFWMD MARION SWFWMD Floating 12 2568.37 Rainbow River 150 SWFWMD MARION SWFWMD Hydrilla 20.6 31963.25 Red Beach Lake 355 Highlands HIGHLANDS SWFWMD Floating 1 222.56 Red Beach Lake 355 Highlands HIGHLANDS SWFWMD Panicum repens 0.55 129 Reedy, Lake 3486 Polk POLK SWFWMD Floating 0 273.58 Reedy, Lake 3486 Polk POLK SWFWMD Hydrilla 1.75 2285.36 Rochelle, Lake 578 Polk POLK SWFWMD Floating 0.5 930.2 Rochelle, Lake 578 Polk POLK SWFWMD Hydrilla 21 11364.82 Rochelle, Lake 578 Polk POLK SWFWMD Typha spp. 3 496.28 Rocky Creek 24 Hillsborough HILLSBOROUGH SWFWMD Floating 19 5030.69 Rosalie, Lake 4597 Polk POLK SFWMD Floating 159 34095.34 Rousseau, Lake 4000 AA CITRUS SWFWMD Floating 878.5 102078.26 Rousseau, Lake 4000 AA CITRUS SWFWMD Hydrilla 129.6 82915.1 Rousseau, Lake 4000 AA CITRUS SWFWMD Tussocks 10 1590.89 Rowell Lake 364 AA BRADFORD SRWMD Floating 58 7525.22 Roy, Lake 78 Polk POLK SWFWMD Floating 0 129.27 Roy, Lake 78 Polk POLK SWFWMD Hydrilla 5.25 2209.02 Runnymede, Lake 300 SFWMD OSCEOLA SFWMD Floating 96.42 10905.74 Russell, Lake 300 SFWMD OSCEOLA SFWMD Floating 0.73 581.08 Ruth Lake 210 Brevard BREVARD SJRWMD Floating 79 6393.76 Saddle Creek Park FMA 335 Polk POLK SWFWMD Floating 13.5 3290.35 Saddle Creek Park FMA 335 Polk POLK SWFWMD Typha spp. 1 217.49 Salt Springs Run 50 AA MARION SJRWMD Hydrilla 4.5 5216.48 Salt Springs Run 50 AA MARION SJRWMD Typha spp. 0.6 193.26 Sampson Lake 2042 AA BRADFORD SRWMD Floating 21.5 3895.28 Santa Fe Lake 4721 AA ALACHUA SRWMD Floating 27.5 5327.53 Santa Fe River 5000 AA COLUMBIA SRWMD Floating 4 1252.23 Sarah, Lake 13 AA ORANGE SJRWMD Cyperus prolifer 0.625 143.84 Sarah, Lake 13 AA ORANGE SJRWMD Floating 0 55 Sarah, Lake 13 AA ORANGE SJRWMD Nymphoides cristata 5.25 954.56 Savannas 140 AA SAINT LUCIE SFWMD Floating 8 833.54 Savannas 140 AA SAINT LUCIE SFWMD Ludwigia octovalvis/peruviana 2.5 426.51 Savannas 140 AA SAINT LUCIE SFWMD Lygodium microphyllum 6.1333 805.47 Savannas 140 AA SAINT LUCIE SFWMD Melaleuca quinquenervia 3 6371.43 Savannas 140 AA SAINT LUCIE SFWMD Oxycaryum cubense 3 421.06 Sawgrass, Lake 407 SJRWMD BREVARD SJRWMD Floating 16 2606.17 Sears, Lake 82 Polk POLK SWFWMD Floating 0 170.03 Sebring, Lake 468 Highlands HIGHLANDS SWFWMD Floating 2 575.12 20

Seminole, Lake (FL) 3200 AA JACKSON NWFWMD Hydrilla 2.5 2400 Sheen, Lake 565 Orange ORANGE SFWMD Floating 0.25 151 Sheen, Lake 565 Orange ORANGE SFWMD Hydrilla 2.13 3470.75 Sheen, Lake 565 Orange ORANGE SFWMD Typha spp. 0.99 196.57 Shell/Prairie Creek Res. 140 SWFWMD CHARLOTTE SWFWMD Floating 276 28234.83 Shipp, Lake 283 Polk POLK SWFWMD Floating 1 241.23 Shipp, Lake 283 Polk POLK SWFWMD Hydrilla 10.5 3300.04 Silver River 40 FL Env. MARION SJRWMD Floating 12.081 4219.2 Silver, Lake 52 Polk POLK SWFWMD Hydrilla 0 107.26 Smart Lake 275 Polk POLK SWFWMD Hydrilla 2.5 658.53 Snead's Smokehouse 81 AA JEFFERSON NWFWMD Limnobium spongia 55 7682.22 Snead's Smokehouse 81 AA JEFFERSON NWFWMD Oxycaryum cubense 50.5 6169.97 South Lake 1101 Brevard BREVARD SJRWMD Floating 50 4390.85 South Lake 1101 Brevard BREVARD SJRWMD Ludwigia octovalvis/peruviana 2 622.26 South Lake 1101 Brevard BREVARD SJRWMD Nuphar advena 10 4519.05 South Lake 1101 Brevard BREVARD SJRWMD Oxycaryum cubense 2 219.37 South Lake 1101 Brevard BREVARD SJRWMD Panicum repens 1 130.48 South Lake 1101 Brevard BREVARD SJRWMD Typha spp. 125 5238.05 South Lake Talmadge 60 AA VOLUSIA SJRWMD Hydrilla 0.075 197 South Lake Talmadge 60 AA VOLUSIA SJRWMD Panicum repens 0.125 59.93 South Lake Talmadge 60 AA VOLUSIA SJRWMD Typha spp. 1.75 343.35 Spring, Lake 25 Polk POLK SWFWMD Floating 0.5 234.68 Spring, Lake 25 Polk POLK SWFWMD Hydrilla 25 15638.56 St. Augustine Lake FMA 16 FL Env. DUVAL SJRWMD Nuphar advena 3 327.3 St. Johns River 96000 AA SAINT JOHNS SJRWMD Colocasia esculenta 2 580.11 St. Johns River 96000 AA SAINT JOHNS SJRWMD Floating 3221.5 379628.48 St. Johns River 96000 AA SAINT JOHNS SJRWMD Hymenachne amplexicaulis 8 1515.02 St. Johns River 96000 AA SAINT JOHNS SJRWMD Ludwigia grandiflora 27 7614.08 St. Johns River 96000 AA SAINT JOHNS SJRWMD Schinus terebinthifolius 8.25 3773.09 St. Johns River 96000 AA SAINT JOHNS SJRWMD Urochloa mutica 5 531.17 St. Johns River 96000 Brevard SAINT JOHNS SJRWMD Floating 5.5 1515.72 St. Johns River 96000 Lake SAINT JOHNS SJRWMD Floating 111.75 12504.88 St. Johns River 96000 SJRWMD SAINT JOHNS SJRWMD Floating 131 17545.99 St. Johns River 96000 SJRWMD SAINT JOHNS SJRWMD Hydrilla 0 460.17 St. Johns River 96000 USACE SAINT JOHNS SJRWMD Floating 5818 250864.09 St. Johns River 96000 USACE SAINT JOHNS SJRWMD Tussocks 10.8 753.38 St. Marks River 140 AA WAKULLA NWFWMD Colocasia esculenta 0.5 245.07 Starke Lake 203 AA ORANGE SJRWMD Floating 0 305.26 Stearns Creek 143 Highlands HIGHLANDS SWFWMD Colocasia esculenta 1 299.78 Stearns Creek 143 Highlands HIGHLANDS SWFWMD Trees (blocking navigation) 0 411.24 Stewart, Lake 64 Lake LAKE SJRWMD Floating 0 53.57 Stone Lake 130 AA ESCAMBIA NWFWMD Hydrilla 4 2357.34 Summit, Lake 67 Polk POLK SWFWMD Floating 0.5 167.73 Summit, Lake 67 Polk POLK SWFWMD Hydrilla 7.75 2911.89 21