... matter in coastal areas, we must clarify the difference from the characteristics of stable isotope ratios and fatty acid structures in Z. japonica to those in primary producers. Coastal areas ... Keywords: LCFAs, primary producers, seagrass, tidal flat, Zostera marina, δ13C INTRODUCTION The coastal ecosystems contribute to human welfare, both directly and indirectly, because they have ... Seagrasses in particular, serve an important role as organic matter by being a food source in coastal ecosystems. Our previous research suggested that Zostera japonica, a kind of seagrass that...