1) Florida fish 2) Grouper 3) Grouper of Florida waters 4) Grouper of the warm seas 5) Grouper of warm seas 6) Red grouper of Florida waters 7) Relative of a sea bass 8) Tropical food fish 9) Warm seas grouper Found on https://www.crosswordclues.com/clue/mero
• (n.) Any of several large groupers of warm seas, esp. the guasa (Epinephelus guaza), the red grouper (E. morio), the black grouper (E. nigritas), distinguished as Me`ro de lo al`to (/), and a species called also rock hind, distinguished as Me`ro ca*brol`la (/). Found on http://thinkexist.com/dictionary/meaning/mero/
USS Mero was an American Balao Class submarine of 1525 tons displacement launched in 1945. USS Mero was powered by diesel engines providing a top speed of 21 knots, carried a complement of 75 and was armed with one 4-inch gun, two 20 mm Oerlikon anti-aircraft guns; six 21 inch bow torpedo tubes and four 21 inch stern torpedo tubes. Found on http://www.probertencyclopaedia.com/browse/RM.HTM