July 15, 2013 Final Report Project SR12-002: Benthic Invertebrate Community Monitoring and Indicator Development for Barnegat Bay-Little Egg Harbor Estuary Gary L. Taghon, Rutgers University, Project Manager
[email protected] Judith P. Grassle, Rutgers University, Co-Manager
[email protected] Charlotte M. Fuller, Rutgers University, Co-Manager
[email protected] Rosemarie F. Petrecca, Rutgers University, Co-Manager and Quality Assurance Officer
[email protected] Patricia Ramey, Senckenberg Research Institute and Natural History Museum, Frankfurt Germany, Co-Manager
[email protected] Thomas Belton, NJDEP Project Manager and NJDEP Research Coordinator
[email protected] Marc Ferko, NJDEP Quality Assurance Officer
[email protected] Bob Schuster, NJDEP Bureau of Marine Water Monitoring
[email protected] Introduction The Barnegat Bay ecosystem is potentially under stress from human impacts, which have increased over the past several decades. Benthic macroinvertebrates are commonly included in studies to monitor the effects of human and natural stresses on marine and estuarine ecosystems. There are several reasons for this. Macroinvertebrates (here defined as animals retained on a 0.5-mm mesh sieve) are abundant in most coastal and estuarine sediments, typically on the order of 103 to 104 per meter squared. Benthic communities are typically composed of many taxa from different phyla, and quantitative measures of community diversity (e.g., Rosenberg et al. 2004) and the relative abundance of animals with different feeding behaviors (e.g., Weisberg et al. 1997, Pelletier et al. 2010), can be used to evaluate ecosystem health. Because most benthic invertebrates are sedentary as adults, they function as integrators, over periods of months to years, of the properties of their environment.