Peruvian Anchoveta and Its Upwelling Ecosystem: Three Decades of Change

摘要

The book presents a comprehensive study of the population growth patterns of the northern/central portion of the anchoveta stock, i.e., off the Peruvian coast. The study is the first attempt ever to use time series data from Peru (covering 1953 to 1984) to test Lasker's hypothesis that storms, by dissipating food-rich microlayers in which anchoveta larvae can feed, lead to their starvation and thus to recruitment failures. The text contains: three studies on oceanographic and atmospheric conditions in the region; six analyses, on the dynamics of the anchoveta stock and of major anchoveta predators and competitors; three papers on managing the Peruvian anchoveta ecosystem including an attempted synthesis of the entire document, integrating what is now known of fish dynamics off Peru into a large-scale simulation model for use in formulating a comprehensive fishery management plan for that system.