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Project Information

Title: Trophic Dynamics of Intertidal Soft-Sediment Communities: Interaction Between Bottom-Up and Top-Down Processes

Project Year and Number: 2003: 030635

Other Fiscal Years and Numbers for this Project: 2006: 040635, 2005: 040635, 2004: 040635

Principal Investigator (PI): Mary Anne Bishop, Prince William Sound Science Center

Assisting Personnel: None

Research Location: Copper River Delta and Orcca Inlet-Eastern Prince William Sound

Restoration Category: Research

Injured Resources Addressed: Intertidal Organisms , Sediments

Abstract: Vast expanses of intertidal sand/mudflats serve as a critical link in the food web of nearshore communities along the southcentral Alaska coastline. The rich abundance of benthic invertebrates residing within the sediments of intertidal flats and the large network of subtidal channels that bisect these flats provide a significant prey resource for numerous species of fish, crabs, birds, and marine mammals. One of the largest expanses of intertidal sand/mudflats occurs in the Copper River Delta and eastern Prince William Sound (Orca Inlet). This project will conduct a large-scale field study that examines the physical/chemical and biological factors that limit and/or regulate invertebrate community dynamics. The largely "bottom-up" approach proposed (physical/chemical parameters - phytoplantkon/epibenthic production - invertebrate production) is balanced by the largely "top-down" focus of a companion project funded by the Prince William Sound Oil Spill Recovery Institute that examines predator dynamics and assesses their role in invertebrate community dynamics.


Geographic Regions Prince William Sound
Fields of Expertise Ecology
Management & Policy
Physical/Chemical Oceanography
Technological Methods Modeling
Professional Activity Field research and Data Collection
Ecosystems Marine – Benthic

Proposal: View PDF (240 KB)

Funding Recommendations: View

Funding Detail For: 2003

Quarterly Project Tasks For: 2003

Annual Report: 2003: View (517 KB)

Final Report: See Project 138

Publications from this Project: None Available

More information may be available for this project under other years:

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Project Number Proposal Annual Reports Final Report Data
2006: 040635 View (PDF) 2006: View (PDF)
2005: View (PDF)
2004: View (PDF)
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