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The Gulf of Maine supports a vital fishery for North America and is one of the most intensely studied marine ecosystems in the world. An understanding of its ecology has practical applications to management of other marine systems and fisheries. This book is the first application of Hierarchy Theory ...

The Gulf of Maine supports a vital fishery for North America and is one of the most intensely studied marine ecosystems in the world. An understanding of its ecology has practical applications to management of other marine systems and fisheries. This book is the first application of Hierarchy Theory to the ecological workings of the Gulf of Maine and of marine ecosystems in general. Hierarchy Theory offers a perspective that simplifies the apparent complications and contradictions of ecosystems, which encompass a number of scales of time (from minutes to decades or longer) and of space (from centimeters to kilometers). Spencer Apollonio explores in detail the idea of natural constraints inherent in hierarchical ecosystems and the impact upon such systems when constraints are reduced or removed. He argues that conventional fisheries management, which practices the removal of these constraints, may be doomed to failure. Apollonio focuses in particular on the "groundfish crisis" in the Gulf, the precipitous decline due to overfishing in populations of cod, haddock, pollock, hakes, and various types of flounders, which have together constituted the mainstay of the Maine fishing industry for centuries. Hierarchical Perspectives on Marine Complexities presents a compelling case for a new approach that holds the promise of resource sustainability in the face of enormously complicated natural and cultural forces.

This book discusses the impact of recent advances in the theory of "scaling relationships" and identifies critical issues that must be considered if experimental results are used to understand the temporal and spatial scales of actual ecosystems. The complexity of ecosystems complicates ...

This book discusses the impact of recent advances in the theory of "scaling relationships" and identifies critical issues that must be considered if experimental results are used to understand the temporal and spatial scales of actual ecosystems. The complexity of ecosystems complicates experimental design. How, for example, does a scientist draw boundaries when studying species effects and interactions? Once these boundaries are drawn, how does one treat factors external to that study? Will the failure to consider external factors affect one's ability to extrapolate information across temporal and spatial scales? This volume provides a compilation from a broad range of ecologists with extensive experimental research experience that addresses these and other questions of scaling relations.