Program Info

Website
https://floridadep.gov/rcp/aquatic-preserve/locations/biscayne-bay-aquatic-preserves
Region(s)
SE
Summary
This project works to better understand the drivers of a seagrass loss event initiating in the Julia Tuttle basin of Biscayne Bay. Benthic habitat monitoring sites across the Tuttle, JFK, and Venetian basins consist of 21 sites (17 with random quadrat throws and 4 with two 50m long transects). Tissue sampling of all found seagrass and green algae species & benthic habitat monitoring data are collected quarterly. Sediment collections were conducted in May and July 2019 for all sites. While surveying, water quality measurements are taken via a YSI EXO2 datasonde and secchi disk. This program is paired with the North Biscayne Bay Water Quality Program (5026).
Parameters
Tissue sampling: SAV species presence, SAV isotopic analysis (%N, %C, %P, d13C, d15N, d34S, C:N, C:P, N:P), SAV sample biomass (g) & epiphyte biomass (g). Benthic monitoring: Braun-Blanquet (cover-abundance scale), percent cover (%), shoot count (#), canopy height (cm), sediment depth (cm). Sediment grain: particle size (mm) as a % volume <2mm, particle size (mm) as a % volume >2mm, organic sediment (% dry weight). Site parameters: depth (ft), current (none, light, mod, strong), visibility (ft), substrate type, sediment depth (cm). Water quality: secchi depth (cm), Chlorophyll (ug/l), Conductivity (µS/cm), Depth (m), nLF Conductivity (µS/cm), ODO (% saturation & % local & mg/L), Pressure (psi a), Salinity (psu), Special Conductivity (µS/cm), TDS (mg/L) Turbidity (FNU), Total Suspended Solids (mg/L), pH (# & mV), Temperature (°C), Vertical Position (m).
Notes
Secondary analyses and remediation projects for the basin could better achieve result specific data, especially related to the iron addition project and sedimentary sulfide assessment. Locations are primarily within the Julia Tuttle basin, but also including the JFK and Venetian basins, all within North Biscayne Bay.
Application
Data are used to implement management decisions and work with partners to decrease input of nutrient sources with future restoration implications.
Publications
Data are yet to be disseminated, but future plans include presentations and a report.
Start
2018
End
Current
Frequency
Semiannual
Method
some permanent N & W transects, random sampling, Braun-Blanquet.
Discontinuity
none
Data Location
By Request
Data Format
.xlsx
.xlsx
Habitats
Submerged Aquatic Vegetation Coral/Coral Reef
Recommended Citation

indicates priority attributes

Contacts
Griffin N Alexander

BBAP Manager

Griffin.N.Alexander@FloridaDEP.gov

Ellyn Willse

Water Quality Specialist

Ellyn.Willse@FloridaDEP.gov

Leah Leyland

Water Quality Technician

Leah.Leyland@FloridaDEP.gov

Export Standardized Data

Habitat(s) : Indicator(s) Last Updated File Download
Submerged Aquatic Vegetation : Percent Cover (by species) 06/22/22 04:45 PM Download File - SAV - 5027.txt
DIP Document N/A Download File - DIP

Office of Resilience and Coastal Protection Managed Areas

Biscayne Bay

Indicators

Indicator
Submerged Aquatic Vegetation - Percent Cover (by species)
Coral/Coral Reef - Percent Cover
Submerged Aquatic Vegetation - Additional Indicators