Atlantic winged oyster
... that a study showed that cultivating the Atlantic winged oyster off the coast of Venezuela was not commercially viable?
... that a study showed that cultivating the <b id="mwOw"><a href="./Pteria_colymbus" id="mwPA" rel="mw:WikiLink" title="Pteria colymbus">Atlantic winged oyster</a></b> off the coast of <a href="./Venezuela" id="mwPQ" rel="mw:WikiLink" title="Venezuela">Venezuela</a> was not commercially viable?