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THE NATURE CONSERVANCY 1
An Oyster Grows in BrooklynLessons learned from monitoring oyster restoration in New York Harbor
A collaboration
The mission of The Nature Conservancy is to conserve the lands and waters on which all life depends.
Billion Oyster Project (BOP) is an effort to restore a sustainable oyster population and to foster awareness, affinity, and understanding of the Harbor by engaging
New Yorkers directly in the work of restoring one billion oysters.
Co-author
Liz Burmester, Ph.D.Restoration EcologistBillion Oyster Project
2018 Edition: May 2019
New York Harbor
New York HarborCrassostrea virginicaFew remnant oystersClosed to harvestUSACE goals:
- 20 ac by 2020 - 2000 ac by 2050
SITES
Site Selection A combination of: • Ecological suitability • Organizational mission• Safety & accessibility• Permits
Community Reefs
• Bush Terminal Park/Sunset Park (BTP)
• Brooklyn Bridge Park (BBP)
• Paerdegat Basin/Canarsie (PB)
• Coney Island Creek (CIC)
Nurseries
• Brooklyn Navy Yard (BNY)
• Governors Island EcoDock (GI)
• Great Kills Harbor (GKH)
• Lemon Creek (LCN)
Bagged Shell Reef
• Lemon Creek Lagoon (LCL)
• Bush Terminal Park/Sunset Park (BTP)
The Sites
Bush Terminal ParkBrooklyn Bridge ParkConey Island CreekPaerdegat Basin
Community Reefs
Nurseries
THE NATURE CONSERVANCY 11
Lemon Creek
Great Kills HarborBrooklyn Navy YardGovernors Island EcoDock
Lemon Creek LagoonBush Terminal Park
Bagged Shell Reefs
MONITORING
MonitoringOyster growth & survivalDisease, condition index, & reproductive statusWater qualityFood quantityNutrientsBiodiversity
Community Involvement
MAIN FINDINGS
Oyster growth is promising.Error bars: 95% CI
Shel
l hei
ght (
mm
)
Date
June 2018
Ripe Spawning
Signs of maturity.
Ripe
Perc
ent
Stage of Development
Some recruitment.
Recruitment Study w/ Matt Hare (Cornell) Aug – Oct
Spat per 2 shell bags
Keep an eye on disease.
MSX November 2017
Perc
ent
Site
Low oxygen is common.
July 2017June 2017
% O
bser
vatio
ns <
4 m
g/L
Site
Biodiversity changes are hard to detect. trap
trap seine
seine
CPU
EC
PUE
SubstrateSubstrateC
PUE
CPU
E
THE NATURE CONSERVANCY 23
Adaptive management is the name of the game.
New sites are new opportunities for learning.
2016: 5 sites2017: +1 site2018: +3 sites 2019-2020: +3 sites
Oyster growth is promising.Some signs of maturity. Some recruitment.
Main Findings (1 of 3)
Keep an eye on disease.Low oxygen is common.
Main Findings (2 of 3)
Biodiversity changes are hard to detect.Adaptive management is the name of the game.New sites are new opportunities for learning.
Main Findings (3 of 3)
Mike McCann, Ph.D.Urban Marine Ecologist
The Nature Conservancy in New York
phone: (646) 465-5889email: [email protected]
Thank You!