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The article focuses on the dietary regime of Manila clam Ruditapes philippinarum through spatial analysis of stable isotopes. It notes that Manila clam is the most fished and farmed bivalves in the world wherein its growth relies mainly on temperature and pelagic food sources and benthic habitats. It adds that stable isotope analysis has been widely used to examine time-integrated dietary patterns of organisms and transfers of organic matter within food webs. Moreover, it explores the large-scale spatial variations in the dietary patterns of the suspension feeding bivalve.

The article presents a study which examined the relationship between digenean trematodes and marine mollusc. It investigated the stable carbon and nitrogen isotopic composition trematode parasites and their marine mollusc hosts to describe the potential influence of parasites on their host and its different tissues and to obtain further insight into their trophic relationships. It found that the two endoparasites Labratrema minimus and Monorchis parvus appeared to be slightly depleted in carbon compared to Cerastoderma edule digestive gland and gonads. Results showed that digenean trematodes mainly feed on digestive glands with a possible slight preference for lipids and fractionation due to parasite metabolism should be due to abbreviated metabolic pathways.