Program Info
- Website
- https://www.swfwmd.state.fl.us/
- Region(s)
- NW
- Summary
- A study of oyster habitat extent and quality as well as barnacle species ranges within the Chassahowitzka, Homosassa and lower Withlacoochee Rivers was conducted to support Southwest Florida Water Management District minimum flows and levels and investigate their effects on sessile macroinvertebrate communities.
- Parameters
- Oyster shell height (mm), density (#/0.25 m^2), acreage (m^2), percent live (%)
- Notes
- Application
- Publications
- Technical report
- Start
- 2018
- End
- 2018
- Frequency
- One-time
- Method
- Up to 50 oyster bars were mapped in each river system and the mapped areas were divided into three sub-areas for sampling and three to five haphazardly placed 0.25m^2 quadrats were evaluated per sub-area. Density was calculated as the count of all oyster specimens within the quadrat area with both valves attached. Percent live was estimated by opening a minimum of 25 specimens to distinguish live individuals from dead individuals. The percent live calculation was used to estimate the size of the oyster sample needed to obtain a minimum live specimen sample size of 25 during laboratory processing. Each laboratory sample was processed to separate individual oysters and associated fauna. Up to 25 live oysters were measured (shell height in mm) with calipers. Whole wet weights, shell wet weights and tissue dry weights were also measured in order to calculate a condition index.
- Discontinuity
- none
- Data Location
- Southwest Florida Water Management District
- Data Format
-
.xlsx
- Habitats
- Oyster/Oyster Reef
- SEACAR Citation
- Southwest Florida Water Management District (SWFWMD) . (2018). Assessment of Oysters and Barnacles Along the Chassahowitzka, Homosassa, and Lower Withlacoochee River Systems. Updated 09/17/2020. Distributed by: SEACAR Data Discovery Interface, Office of Resilience and Coastal Protection, Florida Department of Environmental Protection. https://data.florida-seacar.org/programs/details/5074
- Alternative Citation
indicates priority attributes
Contacts
Program Extent
Export Standardized Data
| Habitat(s) : Indicator(s) | Last Updated | File Download |
|---|---|---|
| Oyster/Oyster Reef : Density, Percent Live, Size Class | 12/08/24 07:13 PM | Download File - Oyster - 5074.zip |
| DIP Document | N/A | Download File - DIP |
Office of Resilience and Coastal Protection Managed Areas
St. Martins Marsh, Nature Coast
Indicators
| Indicator |
|---|
| Oyster/Oyster Reef - Density |
| Oyster/Oyster Reef - Acreage |
| Oyster/Oyster Reef - Percent Live |
| Oyster/Oyster Reef - Size Class |
Documentation and Data provided by program
| File Type | File Name | Added On | Details |
|---|---|---|---|
| Data | Data_ID_5074.zip | 05/06/20 08:55 PM | |
| GIS | DR_Corrected_2.zip | 05/11/20 12:00 AM | |
| Logo | swfwmd-web.gif | 05/11/20 12:00 AM | |
| Protocols | Oyster Barnacles Final.pdf | 05/06/20 08:55 PM |