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Ribbed mussels increase nitrogen
removal in a Jamaica Bay salt marsh
Chester B. Zarnoch
Baruch College and Graduate Center...
Spartina and Ribbed Mussel Mutualism
Mussel Benefits:
Less Heat Stress
Less Predators
Stable Substrate
Spartina Benefits:
...
Jamaica Bay has very high densities of mussels
Photo by D. Franz
Up to ~10,000 mussels m-2
Nielson and Franz 1995
Salt marsh restoration includes Spartina but
not mussels
Silliman et al. 2015_PNAS
GothamtoGo
Salt marsh restoration in Jamaica Bay
http://nbii-nin.ciesin.columbia.edu/jamaicabay/jbwppac/JBAC_NPS_SaltMarshReport_0802...
Big Egg marsh
(restored 2003)
Yellow Bar marsh
(restored 2012)
Development of Ribbed Mussel Community
Recruitment cascade
• Coincides with growth of
Spartina aboveground
biomass
*NPS be...
Manipulative Field Experiment
@ Yellow Bar – 3 Treatments
Response Variables: Plant growth and Nitrogen removal
Coastal habitats can enhance denitrification by
alleviating limitations
Denitrification requires:
1)Source of NO3
-
2)Orga...
Approach
Ribbed mussels did not enhance Spartina growth
Zhu et al. In Press. Marine Ecology Progress Series
Ribbed mussels enhance marsh carbon pool
Zhu et al. In Press. Marine Ecology Progress Series
Ribbed mussels increase
nitrogen removal via
denitrification
Zhu et al. In Press. Marine Ecology Progress Series
Summary
1. Ribbed mussels increase nitrogen removal via denitrification
Adding mussels to restored marshes increases ecolo...
Acknowledgements
Funding:
• National Science Foundation
• Hudson River Foundation
• New York Sea Grant
• Lang Foundation
•...
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Ribbed Mussel ability to remove Nitrogen from water bodies. Slide 1 Ribbed Mussel ability to remove Nitrogen from water bodies. Slide 2 Ribbed Mussel ability to remove Nitrogen from water bodies. Slide 3 Ribbed Mussel ability to remove Nitrogen from water bodies. Slide 4 Ribbed Mussel ability to remove Nitrogen from water bodies. Slide 5 Ribbed Mussel ability to remove Nitrogen from water bodies. Slide 6 Ribbed Mussel ability to remove Nitrogen from water bodies. Slide 7 Ribbed Mussel ability to remove Nitrogen from water bodies. Slide 8 Ribbed Mussel ability to remove Nitrogen from water bodies. Slide 9 Ribbed Mussel ability to remove Nitrogen from water bodies. Slide 10 Ribbed Mussel ability to remove Nitrogen from water bodies. Slide 11 Ribbed Mussel ability to remove Nitrogen from water bodies. Slide 12 Ribbed Mussel ability to remove Nitrogen from water bodies. Slide 13 Ribbed Mussel ability to remove Nitrogen from water bodies. Slide 14 Ribbed Mussel ability to remove Nitrogen from water bodies. Slide 15
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Professor Chester Zarnock explains recently completed and published study showing the benefits of ribbed mussels in a salt marsh including their denitrification potential

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Ribbed Mussel ability to remove Nitrogen from water bodies.

  1. 1. Ribbed mussels increase nitrogen removal in a Jamaica Bay salt marsh Chester B. Zarnoch Baruch College and Graduate Center City University of New York 13 November 2019
  2. 2. Spartina and Ribbed Mussel Mutualism Mussel Benefits: Less Heat Stress Less Predators Stable Substrate Spartina Benefits: Fertilization Reduce Salinity Stress Reduce Erosion
  3. 3. Jamaica Bay has very high densities of mussels Photo by D. Franz Up to ~10,000 mussels m-2 Nielson and Franz 1995
  4. 4. Salt marsh restoration includes Spartina but not mussels Silliman et al. 2015_PNAS GothamtoGo
  5. 5. Salt marsh restoration in Jamaica Bay http://nbii-nin.ciesin.columbia.edu/jamaicabay/jbwppac/JBAC_NPS_SaltMarshReport_080207.pdf. Chronosequence 1) Big Egg = 2003 2) Elders East = 2006 3) Elders West = 2010 4) Yellow Bar = 2012 Degraded Reference Black Bank Stable Reference Joco 1 3 4 D S
  6. 6. Big Egg marsh (restored 2003) Yellow Bar marsh (restored 2012)
  7. 7. Development of Ribbed Mussel Community Recruitment cascade • Coincides with growth of Spartina aboveground biomass *NPS benthic monitoring data
  8. 8. Manipulative Field Experiment @ Yellow Bar – 3 Treatments Response Variables: Plant growth and Nitrogen removal
  9. 9. Coastal habitats can enhance denitrification by alleviating limitations Denitrification requires: 1)Source of NO3 - 2)Organic carbon 3)Anaerobic conditions
  10. 10. Approach
  11. 11. Ribbed mussels did not enhance Spartina growth Zhu et al. In Press. Marine Ecology Progress Series
  12. 12. Ribbed mussels enhance marsh carbon pool Zhu et al. In Press. Marine Ecology Progress Series
  13. 13. Ribbed mussels increase nitrogen removal via denitrification Zhu et al. In Press. Marine Ecology Progress Series
  14. 14. Summary 1. Ribbed mussels increase nitrogen removal via denitrification Adding mussels to restored marshes increases ecological benefits 2. Ribbed mussels did not enhance Spartina growth Timing of mussel planting important? Future work: 2020-2021 Examining how the mutualism affects marsh growth and nitrogen removal under different environmental conditions
  15. 15. Acknowledgements Funding: • National Science Foundation • Hudson River Foundation • New York Sea Grant • Lang Foundation • CUNY Partners: • Gateway National Recreation Area • Town of Hempstead • New York City Parks – NRG Students: Allison Mass – CUNY Graduate Center Doris Law – Baruch College Swathi Mummini- Hunter College Gena Israel – Hunter College Angela David – Loyola University Chicago S Morgan – Loyola University Chicago Steve Polaskey – Loyola University Chicago Jemi Jacob – Hunter College Sanne Lynham – Baruch College Corinna Singleman – CUNY Graduate Center Siena Schickler – Colby College Crystal Mena – City College Dominick Prudente – Oceanside High School Ian Lin – Baruch College Beth Freynk – Baruch College Thomas Rogers & Ben Mulholland – Rockaway Waterfront Alliance Tim Hoellein, Ph.D. Loyola University Chicago Denise Bruesewitz, Ph.D. Colby College Mary Alldred, Ph.D. SUNY Plattsburgh Jennifer Zhu CUNY Graduate Center Stephen Gosnell Baruch College & CUNY Graduate Center

Professor Chester Zarnock explains recently completed and published study showing the benefits of ribbed mussels in a salt marsh including their denitrification potential

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