Arachidonic acid distribution in seaweed, seagrass, invertebrates and dugong in coral reef areas in the Philippines
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Arachidonic acid (ArA) was not a minor component, and ArA distributes widely in coral reef organisms. Seagrass had high linoleic acid and linolenic acid levels with low Ara, EPA and DHA levels, while some species of seaweed had intermediate or high ArA levels (5% to 12%). In starfish, sea cucumber and some species of corals, ArA was the first major fatty acid (20% to 30%), but DHA levels were very low. Bivalves, abalone and shrimps had intermediate ArA levels. Total lipids of abdominal muscle and liver of dugong had respectively ArA levels of 7.8% and 11.0%, which were higher than EPA levels (2.4% and 1.6%), but DHA levels (0.4% and 2.3%) were low. It is clear that ArA is a major fatty acid in coral reef animals. The present results suggest that the existence of an ArA-rich food chain may be widespread in coral reef areas, and that the widespread existence of ArA-rich food chain may lead to intermediate or high ArA contents in tropical species.
Suloma, A., Ogata, H. Y., Furuita, H., Garibay, E. S., & Chavez, D. R. (2007). Arachidonic acid distribution in seaweed, seagrass, invertebrates and dugong in coral reef areas in the Philippines. In K. Nakamura (Ed.), Sustainable Production Systems of Aquatic Animals in Brackish Mangrove Areas (JIRCAS Working Report No. 56) (pp. 107-111). Tsukuba, Ibaraki, Japan: Japan International Research Center for Agricultural Sciences
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