Distribution and Ecology of Deep-Water Caridean Shrimps (Crustacea; Natantia) Near Tropical Pacific Islands
Abstract:Deep-water caridean shrimps have been caught in baited traps set as deep as 800 m off many tropical Pacific Islands. Studies on the biology and distribution of several species (most belonging to the genus Heterocarpus) have been of both commercial and academic interest. The widespread distribution and abundance of these shrimps has encouraged some commercial attempts at exploitation, but the economics of the fishing operations have been marginal. Some of the studies on the ecology of deep-water shrimps have produced findings which run counter to competition-based ecological theory. Adult predation may decrease with increasing depth, allowing deeper-water species to have an extended lifespan, an increased degree of iteroparity, and a corresponding increase in lifetime reproductive effort. Furthermore, the probabilities of larval survival, which appear to decrease with increasing depth, may be offset by the production of larger eggs by deeper-water species.
Document Type: Research Article
Publication date: September 1, 1987
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