Shell Bank: Oyster Shell Recycling, Community Involvement, Student Institute, and Oyster Health Final Report for GLO Contract # 18-093-000-A604
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Shell Bank: Oyster shell recycling, community involvement, student institute, and oyster health Final Report for GLO Contract # 18-093-000-A604 Prepared for Jennifer Beseres Pollack, Ph.D. Gail Sutton, M.S. July 9, 2019 Table of Contents Table of Figures ............................................................................................................................... 3 Acknowledgements ......................................................................................................................... 6 Introduction .................................................................................................................................... 7 Shell Bank Project partners ......................................................................................................... 7 CMP 22 Project Objective and Goals .............................................................................................. 8 Goal 1: Oyster shell recycling. ..................................................................................................... 8 Goal 2: Citizen engagement. ....................................................................................................... 9 Goal 3: Hands-on learning. ......................................................................................................... 9 Goal 4: Reef characterization...................................................................................................... 9 CMP 22 Project Accomplishments .................................................................................................. 9 1. Oyster shell recycling ........................................................................................................... 9 2. Citizen engagement ........................................................................................................... 17 3. Hands-on learning .............................................................................................................. 21 4. Reef characterization ......................................................................................................... 25 Conclusion ..................................................................................................................................... 34 Literature cited.............................................................................................................................. 36 Appendix A: Hands-on learning material ...................................................................................... 38 1. Water Quality ..................................................................................................................... 38 2. Oyster Life Cycle ................................................................................................................. 39 3. Oyster Reef as Habitat ....................................................................................................... 41 4. Oyster Diseases .................................................................................................................. 42 5. Oysters and Humans ............................................................................................................ 1 Appendix B: Bedding on the Future ................................................................................................ 2 Table of Figures Figure 1. Pounds of oyster shells recovered from seafood restaurants, wholesalers, and festivals. ........................................................................................................................................ 11 Figure 2. Sink your Shucks volunteers at Austin Oyster Festival. ................................................. 13 Figure 3. Volunteers at Austin Oyster Festival.............................................................................. 13 Figure 4. Dumping recycled shells into the collection trailer at Austin Oyster Festival. .............. 14 Figure 5. Talking about oyster shell recycling and reef restoration at Austin Oyster Festival. .... 14 Figure 6. Sink Your Shucks Program featured on Fox 7 Austin News Station. ............................. 15 Figure 7. Sink Your Shucks Volunteers at Fiesta Oyster Bake ....................................................... 15 Figure 8. Sink Your Shucks trailer filled with recycled oyster shells at Fiesta Oyster Bake. ......... 16 Figure 9. Two full trailers of reclaimed oyster shells at the end of Fiesta Oyster Bake. .............. 16 Figure 10. Measuring and cutting the tubular mesh before tying off one end to create shell bags at a community-based restoration event at Goose Island State Park. ......................................... 17 Figure 11. Volunteers fill mesh bags at a community-based restoration event at Goose Island State Park. The mound of recycled shells is visible in the background. ....................................... 18 Figure 12. Placing filled shell bags along the shoreline at a community-based restoration event at Goose Island State Park. ........................................................................................................... 18 Figure 13. Volunteers pass bags of recycled shells down to the restoration site as part of a community-based restoration event at Goose Island State Park. ................................................ 19 Figure 14. Goose Island State Park Ranger looks on as volunteers pass bags of recycled shells down to the restoration site at a community-based restoration event. ..................................... 20 Figure 15. Sink Your Shucks volunteers at the completion of a community-based restoration event at Goose Island State Park. ................................................................................................. 20 Figure 16. Sink Your Shucks Staff prepare the students for the “Jigsaw” learning portion of the event. They are learning about the process and how they will break into groups. .................... 22 Figure 17. Sink Your Shucks Staff members Abby Williams and Abe Margo holding up the colored flags so students can find the group they need to report to for the hands-on learning. 23 Figure 18. Jay Tarkington gathering students to teach about “Oysters and Humans” so they understand the important relationship between the two. .......................................................... 23 Figure 19. Natasha Breaux teaching students about the importance of water quality and how it can impact the distribution and abundance of oysters. ............................................................... 24 Figure 20. Abe Margo teaching students about “Oyster Reef as Habitat” so they can learn the physical complexity of an oyster reef. .......................................................................................... 24 Figure 21. Students learning about reef-associated fauna that inhabit restored oyster reefs and utilize the habitat for nursery and forage. .................................................................................... 25 Figure 22. Sampling locations for reef characterization using paired dredges and diver quadrats. ....................................................................................................................................................... 27 Figure 23. Number of live oysters collected by dredges versus diver quadrats at 4 sampling locations (3 replicates each) in the Trinity-San Jacinto Estuary (Galveston Bay system). ........... 28 Figure 24. Number of live oysters collected by dredges versus diver quadrats at 4 sampling locations (3 replicates each) in the Lavaca-Colorado Estuary (Matagorda Bay system).............. 28 Figure 25. Number of live oysters collected by dredges versus diver quadrats at 4 sampling locations (3 replicates each) in the Guadalupe Estuary (San Antonio Bay system). .................... 29 Figure 26. Number of live oysters collected by dredges versus diver quadrats at 4 sampling locations (3 replicates each) in the Mission-Aransas Estuary (Aransas Bay system). .................. 29 Figure 27. Size frequency distribution (shell height, mm) of oysters collected by dredges and diver quadrats at 4 sampling locations (3 replicates each) in the Trinity-San Jacinto Estuary (Galveston Bay system). ................................................................................................................ 30 Figure 28. Size frequency distribution (shell height, mm) of oysters collected by dredges and diver quadrats at 4 sampling locations (3 replicates each) in the Lavaca-Colorado Estuary (Matagorda Bay system). .............................................................................................................. 31 Figure 29. Size frequency distribution (shell height, mm) of oysters collected by dredges and diver quadrats at 4 sampling locations (3 replicates each) in the Guadalupe Estuary (San Antonio Bay system). .................................................................................................................... 31 Figure 30. Size frequency distribution (shell height, mm) of oysters collected by dredges and diver quadrats at 4 sampling locations (3 replicates each) in the Mission-Aransas Estuary (Aransas Bay system). ................................................................................................................... 32 Figure 31. Linear regression between live oyster densities using quadrats and live oyster densities using dredges. Each point represents the mean for that sampling location. ............... 33