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REServ

REServ. An Ecosystem Services Assessment using bioextraction technologies for removal of nitrogen and other substances in Long Island Sound and the Great Bay/ Piscataqua Region. Joao G . Ferreira, Changbo Zhu, Camille Saurel. Professor of Environmental Engineering , FCT-UNL

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REServ

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  1. REServ An Ecosystem Services Assessment using bioextraction technologies for removal of nitrogen and other substances in Long Island Sound and the Great Bay/Piscataqua Region Joao G. Ferreira, Changbo Zhu, Camille Saurel Professor ofEnvironmentalEngineering, FCT-UNL ChiefScientificOfficer, LonglineEnvironmentLtd. Longline Environment Ltd. http://longline.co.uk/ 6th September 2012

  2. Ongoing activities for REServ Long Island Sound system-scale ecological model – box definitions Shellfish modelling – use of NOAA Milford experimental results for development of a Crassostrea virginica growth model Software updates for WinShell, FARM, and EcoWin2000 (64 bit versions) General website development/maintenance

  3. CHLA concentration of different layers of LIS in 2006 Chl a (ug/l) ASSETS category: Medium P90 = 9.6 Data source: LIS NCA nutrient data.zip

  4. DO of different layers of LIS in 2006 ASSETS category: Biologically stressful P10 = 4.1 Data source: LIS NCA CTD data.zip

  5. Salinity of different layers of LIS in 2006 Salinity: 0 - 0.5 0.5 – 25 > 25 Data source: LIS NCA CTD data.zip

  6. Data source: LIS NCA CTD data.zip

  7. TOTAL (CT + NY ) = 485363.1

  8. Individual Growth Model for American oysterAquaShell • Will be developed to: • simulate change in individual weight, expressed as tissue dry weight and scaled to total fresh weight and shell length; • integrate the relevant physical and biogeochemical components, such as chlorophyll, temperature, and salinity, and partition phytoplankton and detrital food resources; • provide environmental feedbacks for production of particulate organic waste (feces and pseudofeces) excretion of dissolved nitrogen, and consumption of DO

  9. Individual Manila clam growth simulationAquaShell model No growth in winter 60 50 Simulation of clam shell length with Samish Island environmental drivers. 40 30 Shell length (mm) 20 10 0 0 200 400 600 800 1000 1200 1400 1600 1800 Julian Day The AquaShell Manila clam model does a good job of simulating growth – see Aquaculture, 318, 444-457

  10. Individual Manila clam growth simulationAquaShell model 0.8 Simulation of clam dry meat weight with Samish Island environmental drivers. 0.7 0.6 Dry meat weight (g DW) 0.5 0.4 0.3 Loss of condition in winter 0.2 0.1 0 Julian Day 0 200 400 600 800 1000 1200 1400 1600 1800 The meat weight oscillates due to loss of condition. In the last period of culture the clam shell is bigger, but the model does not show higher meat yields

  11. Setup for the FARM model in Samish IslandFARM Aquaculture Resource Management We need similar descriptive data in order to set up FARM for Long Island Sound and Great Bay.

  12. Software development Individual growth model for American oyster will be developed first in PowerSim, and then ported to WinShell (C++) after full testing. It will then be incorporated in EcoWin2000 and FARM, within a population dynamics model.

  13. Some issues and questions NY part of LIS – data appear to be less reliable than for CT To what extent is expansion of shellfish culture possible, given bottom culture limitation? How do closed/conditional areas restrict the role of shellfish culture re: both production and nutrient bioextraction?

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