Abstract
This chapter begins with an overview and classification of the various species caught in fisheries around the world, of populations, communities, and habitats. A number of factors influence the spatial arrangement of fished species. Physical and chemical factors that vary with latitude influence which species are caught where in the world's fisheries. Dynamic analyses of fishery systems have a particularly long history in the natural sciences, such as biology and oceanography. The chapter reviews some key features of single- and multi-species dynamics, as well as a brief discussion of the dynamics of ecosystems and the biophysical environment. Technical interactions have received considerable attention by fishery scientists, since problems of unwanted by-catches, and in particular impacts of dumping fish of the ‘wrong’ species or size, can have major conservation implications.
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