“…Although some critical studies on global aquaculture conduct commodity chain or value chain analysis to understand global dynamics between the production and consumption of seafood (Jespersen, Kelling, Ponte, & Kruijssen, ; Lim & Neo, ; Ponte, Kelling, Jespersen, & Kruijssen, ), global value chain literature usually focuses on relations of exchange—rather than on production—(Baglioni & Campling, ), and such research mostly emphasizes value creation processes (Quentin & Campling, ) or certification mechanisms. Our aim on the other hand is focusing on the expansionary dynamics of production through commodity frontiers approach but meanwhile incorporating the study of how changes in production influence and are influenced by aquaculture firms' simultaneous strategies regarding control over markets—what we call commodity marketing strategies—and how they lead to further horizontal, vertical, and taxonomic expansions parallel to the transformation of seafood production.…”