Journal of the Marine Biological Association of the United Kingdom

Research Article

The density of elasmobranchs

Q. Bonea1 and B. L. Robertsa1

a1 The Plymouth Laboratory

Abstract

The density of 18 species, measured by weighing them in sea water and in air, was found to vary widely. The weights of these fish in sea water ranged from about 7 % to less than 1 % of their air weights.