Station: 271

EPA property number of digital camera used for field documentation of habitat and soil core

Cattail present at the station, based on visual observation, Y/N

number of helicopter and associated sampling equipment and supply cache

sampling cycle number

in situ surface water dissolved oxygen, YSI sonde, mg/L

Dominant macrophyte at station based on visual observation

number of mosquitofish collected for Hg analysis

Portion of floc collected from core; none, part or all

number of tubs used for floc collection

Garmin Global Positioning System EPA property number, used for navigation to the station

sampled within 5 meters of GPS coordinates = nominal; 5-20 meters = shifted; >20 meters = station rejected;

organic matter in soil, %, calculated as 100-ASHSDFS % (FIU Soil/Sediment Biogeochemistry Lab)

benthic periphyton (soil mat) presence in 0.25 square meter quadrat (Y/N)

Total percent cover of periphyton within 0.25 square meter quadrat, covered by all periphyton (PE, PB, PF) if 3-dimensional quadrat volume was compressed into a 2-dimensional plane

in situ surface water pH, YSI sonde, std units

whole sawgrass plant collected for mercury analysis? (Y/N)

Helicopter landing time at station

Helicopter departure time from station

File name logged at the station by the Trimble unit

in situ surface water turbidity, YSI sonde, NTU

weather conditions: 1=clear, 2=slightly overcast, 3=medium overcast, 4=very overcast, 5=drizzle, 6=rain

field data: benthic periphyton, or cookie, thickness, cm, collected from 3-inch inner diameter clear polycarbonate core

soil thickness, feet, metal probe to point of refusal, calculated as difference between WATDEPTH and DEPBEDR

Ash in dry samples, soil, after ashing at 550 C, mg/kg, (FIU Soil/Sediment Biogeochemistry Lab)

Bulk Density of floc, g/cc dry weight (FIU Soil/Sediment Biogeochemistry Laboratory)

Bulk Density of soil, g/cc dry weight (FIU Soil/Sediment Biogeochemistry Laboratory)

Chlorophyll a in composite epiphytic and floating periphyton, mg/kg, dry weight (FIU Nutrient Analysis Lab)

volume of surface water filtered for chlorophyll-a analysis, ml

Filtered Ammonia in surface water, mg/L (FIU Nutrient Analysis Lab); MRL = 0.0031mg/L; PQL = 0.0140 mg/L

Filtered Nitrite in surface water, mg/L (FIU Nutrient Analysis Lab)

Water content of floc as percentage of wet weight (FIU Soil/Sediment Biogeochemistry Lab)

Water content of soil as percentage of wet weight (FIU Soil/Sediment Biogeochemistry Lab)

sawgrass leaves collected for carbon, nitrogen and phosphorus analysis (Y/N)

Methyl Mercury in composite epiphytic and floating periphyton, ng/g (FIU Mercury Lab)

Methyl Mercury in surface water, ng/L (FIU Mercury Lab); MDL=0.02 ng/L; PQL=0.06 ng/L

pH in floc as measured in 1:1 (gram wet soil: g distilled de-ionized water) soil slurry (FIU Soil/Sediment Biogeochemistry Lab)

ex situ soil pH, std units, as measured in 1:1 (gram wet weight soil:gram de-ionized distilled water) soil slurry (FIU Soil/Sediment Biogeochemistry Laboratory)

Soluble Reactive Phosphorus in surface water,ug/L (FIU Nutrient Analysis Lab)

Total Carbon in combined floating and epiphytic periphyton, mg per gram, dry weight (FIU Soil/Sediment Biogeochemistry Laboratory)

in situ surface water temperature, YSI sonde, degrees C

Total Mercury in mosquitofish (Gambusia affinis), ug/kg (FIU Mercury Lab); MDL = 3.2 ug/kg; MRL = 9.6 ug/kg; reported as wet weight, composite of up to seven fish

Total Mercury in soil, ng/g (FIU Mercury Lab), MDL = 2.4 ng/g, MRL = 7.2 ng/g

Total Nitrogen in floc, mg per g dry weight (FIU Soil/Sediment Biogeochemistry Laboratory)

Total Nitrogen in soil, mg per g dry weight (FIU Soil/Sediment Biogeochemistry Laboratory)

Total organic carbon in surface water, mg/L (EPA SESD)

Total Phosphorus in composite floating and epiphytic periphyton, ug/g dry weight (FIU Nutrient Analysis Lab)