One Person's Food: How and Why Fish Avoidance May Affect the Settlement and Subsistence Patterns of Hunter-Gatherers

Foraging strategies of modern hunter-gatherers may not accurately model resource use of specialized big-game hunters. Historic accounts from the Northern Plains of North America indicate that utilization of spring-spawning fish when large mammals were fat-depleted was not universally beneficial. Three independent reports from Europeans and Americans show that a sudden switch from a prolonged diet of lean red meat to fish produces symptoms consistent with lipid (fat) malabsorption. It is hypothesized that plains-adapted hunter-gatherers formed their camps in grassland environments and hunted big game throughout the winter The effects of eating lean meat alone were avoided by utilizing fetal and newborn animals and through the use of stored carbohydrate-rich foods. Groups associated with wooded environments wintered along the margins of the winter grazing range. They followed a diverse strategy with opportunistic use of big game and were able to exploit spring-spawning fish. Archaeological remains from 18 sites from the plains, parkland, and forests of Western Canada were used to test these hypotheses. The faunal assemblages, tools, and identifications of lipid residues from pottery vessels were consistent with the proposed strategies.