E-grāmata: Shifting Baselines in the Chesapeake Bay

This environmental history of Americas largest estuary provides insight into how and why its former productivity and abundant fisheries have declined.

The concept of shifting baselineschanges in historical reference points used in environmental assessmentsilluminates a foundational challenge when evaluating the health of ecosystems and seeking to restore degraded wildlife populations. In this important book, Victor S. Kennedy examines the problem of shifting baselines for one of the most productive aquatic resources in the world: the Chesapeake Bay.

Kennedy explains that since the 1800s, when the Bay area was celebrated for its aquatic bounty, harvest baselines have shifted downward precipitously. Over the centuries, fishers and hunters, supported by an extensive infrastructure of boats, gear, and processing facilities, overexploited the regions fish, crustaceans, terrapin, and waterfowl, squandering a profound resource. Beginning with the colonial period and continuing through the twentieth century, Kennedy gathers an unparalleled collection of scientific resources and eyewitness reports by colonists, fishers, managers, scientists, and newspaper reporters to create a comprehensive examination of the Chesapeakes environmental history.

Focusing on the relative productivity and health of its fisheries and wildlife and highlighting key species such as shad, oysters, and blue crab, Shifting Baselines in the Chesapeake Bay helps readers understand the remarkable extent of the Bays natural resources in the past so that we can begin to understand what has changed since, and why. Such knowledge can help illustrate the Bays potential fertility and stimulate efforts to restore this pivotal maritime systems ecological health and productivity.