Influence Of Seawater Temperature Research Articles

Comparative tolerance to gas supersaturated water of two marine fishes, Dicentrarchus labrax and Mugil cephalus

The tolerance of post-larval and fingerling sea bass, Dicentrarchus labrax and striped mullet, Mugil cephalus, to gas supersaturated seawater was evaluated, along with the influence of seawater temperature on the tolerance of post-larval sea bass to gas super-saturation. The 96 h LC 50 values for post-larvae of the two species tested at 20°C were similar: 127.2% TGP (125.2–129.4% TGP) for sea bass and 129.4% TGP (124.7–135.0% TGP) for striped mullet. The 96 h LC 50 values for fingerlings tested at 20°C were 116.0% TGP (112.0–124.2% TGP) for sea bass and 124.8% TGP (121.4–127.2% TGP) for striped mullet. For both species, fingerlings were less tolerant of supersaturated seawater than were post-larvae. Post-larval sea bass were less tolerant of gas supersaturated water at 26°C than at 20°C.