| Species (N=206) | GC (%) | AT (%) | G (bases) | C (bases) | A (bases) | T (bases) | Maximum lifespan (yrs) |
|---|---|---|---|---|---|---|---|
| Catostomus commersonii | 42.8 | 57.2 | 79 | 48 | 92 | 78 | 12.0 |
| Chanos chanos | 49.5 | 50.5 | 97 | 50 | 80 | 70 | 15.0 |
| Chelmon rostratus | 46.1 | 53.9 | 91 | 46 | 89 | 71 | 10.0 |
| Chelon labrosus | 50.2 | 49.8 | 103 | 46 | 87 | 61 | 25.0 |
| Clupea harengus | 48.5 | 51.5 | 95 | 49 | 81 | 72 | 22.0 |
| Clupea pallasii | 48.5 | 51.5 | 95 | 49 | 81 | 72 | 19.0 |
| Clupeonella cultriventris | 49.8 | 50.2 | 93 | 55 | 82 | 67 | 5.0 |
| Cololabis saira | 44.8 | 55.2 | 92 | 41 | 92 | 72 | 2.0 |
| Coregonus clupeaformis | 51.2 | 48.8 | 98 | 54 | 77 | 68 | 50.0 |
| Coregonus nasus | 51.2 | 48.8 | 99 | 53 | 76 | 69 | 15.0 |
| Cottus poecilopus | 52.5 | 47.5 | 109 | 47 | 82 | 59 | 8.0 |
| Ctenopharyngodon idella | 46.8 | 53.2 | 89 | 50 | 82 | 76 | 21.0 |
| Culaea inconstans | 46.5 | 53.5 | 92 | 46 | 93 | 66 | 2.0 |
| Cycleptus elongatus | 46.5 | 53.5 | 90 | 48 | 80 | 79 | 13.0 |
| Cymatogaster aggregata | 47.1 | 52.9 | 93 | 47 | 89 | 68 | 8.0 |
| Cyprinella lutrensis | 45.1 | 54.9 | 87 | 47 | 88 | 75 | 2.0 |
| Cyprinella spiloptera | 47.8 | 52.2 | 92 | 50 | 83 | 72 | 5.0 |
| Cyprinus carpio | 45.8 | 54.2 | 89 | 47 | 83 | 78 | 47.0 |
| Dallia pectoralis | 46.5 | 53.5 | 97 | 41 | 95 | 64 | 8.0 |
| Danio rerio | 40.4 | 59.6 | 79 | 41 | 88 | 89 | 5.5 |
| Dicentrarchus labrax | 49.8 | 50.2 | 101 | 47 | 90 | 59 | 15.0 |
| Dorosoma cepedianum | 52.9 | 47.1 | 100 | 57 | 75 | 65 | 6.0 |
| Dorosoma petenense | 50.2 | 49.8 | 97 | 52 | 74 | 74 | 4.0 |
| Elassoma zonatum | 46.1 | 53.9 | 90 | 47 | 97 | 63 | 3.0 |
| Engraulis encrasicolus | 46.5 | 53.5 | 81 | 57 | 86 | 73 | 3.0 |
| Engraulis japonicus | 45.8 | 54.2 | 82 | 54 | 84 | 77 | 3.0 |
| Epinephelus areolatus | 46.5 | 53.5 | 94 | 44 | 90 | 69 | 15.0 |
| Epinephelus coioides | 49.2 | 50.8 | 103 | 43 | 80 | 71 | 22.0 |
| Erimyzon oblongus | 48.1 | 51.9 | 88 | 55 | 86 | 68 | 6.0 |
| Esox lucius | 49.8 | 50.2 | 104 | 44 | 82 | 67 | 30.0 |
| Etheostoma radiosum | 49.5 | 50.5 | 99 | 48 | 91 | 59 | 4.0 |
| Euthynnus affinis | 51.2 | 48.8 | 104 | 48 | 84 | 61 | 10.0 |
| Gadus morhua | 46.8 | 53.2 | 93 | 46 | 89 | 69 | 25.0 |
| Gadus ogac | 47.5 | 52.5 | 94 | 47 | 88 | 68 | 12.0 |
| Galaxiella nigrostriata | 43.8 | 56.2 | 86 | 44 | 101 | 66 | 1.0 |
| Gambusia affinis | 46.5 | 53.5 | 97 | 41 | 88 | 71 | 3.0 |
| Gasterosteus aculeatus | 47.1 | 52.9 | 91 | 49 | 93 | 64 | 8.0 |
| Gila robusta | 45.8 | 54.2 | 89 | 47 | 84 | 77 | 8.0 |
| Gobio gobio | 48.8 | 51.2 | 94 | 51 | 79 | 73 | 8.0 |
| Harengula jaguana | 52.2 | 47.8 | 92 | 63 | 73 | 69 | 3.0 |