Cecily,
You might also take a look at Newell et al. 1995, Marine Biol. 123:595-606. Relative importance of benthic algae, phytoplankton and mangroves as sources of nutrition for penead prawns and other coastal invertebrates from Malaysia.
J. Stribling
Judith Stribling
Department of Biology
Salisbury State University
Salisbury, MD 21801
(410) 548-4767