Species, GC (%), AT (%), G (bases), C (bases), A (bases), T (bases), Maximum lifespan (yrs) Apeltes quadracus, 43.7, 56.3, 289, 137, 314, 235, 3.0, Culaea inconstans, 42.2, 57.8, 273, 138, 314, 250, 2.0, Gasterosteus aculeatus, 43.5, 56.5, 279, 145, 313, 238, 8.0, Hippocampus erectus, 40.4, 59.6, 259, 135, 276, 305, 4.7, Hypoptychus dybowskii, 48.3, 51.7, 302, 169, 314, 190, 1.0, Pungitius pungitius, 46.4, 53.6, 290, 162, 303, 220, 5.0,