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TRACE ELEMENTS IN TWO RAS BEIRUT SHORE CRABS 

John G. Shiber 
Department of Biology American University of Beirut, Lebanon

Abstract
Two species of shore crabs, Eriphia verrucosa and Pachygrapsus 
transversus were collected along the coast of Ras Beirut, Lebanon
and analysed for lead, cadmium, coper, nickel, iron, zinc and
chromium. Metal levels were similar in the two species, but copper
was slightly higher and zins was considerably higher in 
E. verrucosa. Chromium was not detected in most samples analysed.
Three molted specimens of P. transversus were also analysed and
found to contain high levels of lead and zinc in contrast to the
other samples.