Ecology of benthonic species

Abstract

Benthonic foraminiferal faunas off El Salvador can be divided into six faunal zones: A, 0 to 30 meters; B, 30 to 60 meters; C, 60 to 150 meters; D, 150 to 600 meters; E, 600 to 1,300 meters; and F, 1,300 to more than 3,200 meters. The faunal composition of zones A, D, E, and F off Central America is similar to that of equivalent zones off California; zones B and C are characterized by different species in the two regions. Zonal boundaries are at greater depths off California than off El Salvador.