Fish - Shrimp Interactions

Grass shrimp (Palaemonetes pugio) are the most abundant epibenthic decapod crustacean in upper Chesapeake Bay and other estuaries of eastern North America. Grass shrimp are preyed upon by a guild of several species of fish, including striped bass (Morone saxatilis), white perch (Morone americana), croaker (Micropogonias undulatus), and killifish (Fundulus heteroclitus). This intensive predation pressure causes grass shrimp to obtain refuge in shallow (<30cm) nearshore water and associated woody debris. Grass shrimp feed on small infauna and meiofaunal, regulating larval recruitment and benthic community structure in the nearshore zone.

In addition, we have also conducted certain experiments on predator-prey interactions (tethering of juvenile blue crabs, killifish, and grass shrimp) each summer for 15+ years. We have conducted long-term measures and detailed experimental analysis of this system for nearly 20 years.


Implications of a fluctuating fish predator guild on behavior, distribution, and abundance of a shared prey species: the grass shrimp Palaemonetes pugio.
Davis, J.L.D., W.J. Metcalfe, and A.H. Hines. 2003.
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Diel variation in predator abundance, predation risk and prey distribution in shallow-water estuarine habitats.
Clark, K. G.M. Ruiz, and A.H. Hines. 2002.
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Complex Predator-Prey Interactions within an Estuarine Benthic Community .
Posey, H. M., and A.H. Hines. 1991.
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