| Species (N=206) | GC (%) | AT (%) | G (bases) | C (bases) | A (bases) | T (bases) | Maximum lifespan (yrs) |
|---|---|---|---|---|---|---|---|
| Catostomus commersonii | 43.6 | 56.4 | 208 | 134 | 232 | 211 | 12.0 |
| Chanos chanos | 48.9 | 51.1 | 251 | 133 | 199 | 202 | 15.0 |
| Chelmon rostratus | 44.7 | 55.3 | 218 | 133 | 233 | 201 | 10.0 |
| Chelon labrosus | 48.6 | 51.4 | 248 | 133 | 214 | 189 | 25.0 |
| Clupea harengus | 48.9 | 51.1 | 235 | 149 | 212 | 189 | 22.0 |
| Clupea pallasii | 48.8 | 51.2 | 229 | 154 | 214 | 188 | 19.0 |
| Clupeonella cultriventris | 49.6 | 50.4 | 240 | 149 | 218 | 178 | 5.0 |
| Cololabis saira | 41.1 | 58.9 | 202 | 121 | 251 | 211 | 2.0 |
| Coregonus clupeaformis | 48.5 | 51.5 | 242 | 139 | 219 | 185 | 50.0 |
| Coregonus nasus | 49.2 | 50.8 | 243 | 143 | 218 | 181 | 15.0 |
| Cottus poecilopus | 49.9 | 50.1 | 245 | 147 | 207 | 186 | 8.0 |
| Ctenopharyngodon idella | 44.3 | 55.7 | 215 | 133 | 220 | 217 | 21.0 |
| Culaea inconstans | 45.8 | 54.2 | 227 | 133 | 239 | 187 | 2.0 |
| Cycleptus elongatus | 46.0 | 54.0 | 224 | 137 | 214 | 210 | 13.0 |
| Cymatogaster aggregata | 45.7 | 54.3 | 220 | 139 | 236 | 190 | 8.0 |
| Cyprinella lutrensis | 46.2 | 53.8 | 208 | 154 | 230 | 192 | 2.0 |
| Cyprinella spiloptera | 46.8 | 53.2 | 207 | 160 | 229 | 188 | 5.0 |
| Cyprinus carpio | 44.0 | 56.0 | 222 | 124 | 213 | 227 | 47.0 |
| Dallia pectoralis | 43.3 | 56.7 | 217 | 123 | 251 | 194 | 8.0 |
| Danio rerio | 42.4 | 57.6 | 194 | 139 | 240 | 213 | 5.5 |
| Dicentrarchus labrax | 49.3 | 50.7 | 239 | 148 | 216 | 182 | 15.0 |
| Dorosoma cepedianum | 49.6 | 50.4 | 247 | 142 | 210 | 186 | 6.0 |
| Dorosoma petenense | 48.4 | 51.6 | 240 | 140 | 216 | 189 | 4.0 |
| Elassoma zonatum | 43.2 | 56.8 | 206 | 133 | 254 | 192 | 3.0 |
| Engraulis encrasicolus | 47.1 | 52.9 | 219 | 151 | 226 | 189 | 3.0 |
| Engraulis japonicus | 47.3 | 52.7 | 220 | 152 | 228 | 186 | 3.0 |
| Epinephelus areolatus | 46.4 | 53.6 | 236 | 128 | 222 | 199 | 15.0 |
| Epinephelus coioides | 44.3 | 55.7 | 225 | 123 | 230 | 207 | 22.0 |
| Erimyzon oblongus | 43.9 | 56.1 | 211 | 134 | 225 | 215 | 6.0 |
| Esox lucius | 48.6 | 51.4 | 246 | 136 | 216 | 188 | 30.0 |
| Etheostoma radiosum | 49.5 | 50.5 | 237 | 152 | 219 | 178 | 4.0 |
| Euthynnus affinis | 47.6 | 52.4 | 239 | 135 | 205 | 206 | 10.0 |
| Gadus morhua | 43.5 | 56.5 | 209 | 133 | 247 | 197 | 25.0 |
| Gadus ogac | 43.6 | 56.4 | 207 | 136 | 249 | 194 | 12.0 |
| Galaxiella nigrostriata | 42.1 | 57.9 | 204 | 127 | 259 | 196 | 1.0 |
| Gambusia affinis | 47.4 | 52.6 | 241 | 131 | 217 | 196 | 3.0 |
| Gasterosteus aculeatus | 44.8 | 55.2 | 217 | 135 | 246 | 187 | 8.0 |
| Gila robusta | 45.5 | 54.5 | 214 | 143 | 230 | 198 | 8.0 |
| Gobio gobio | 44.9 | 55.1 | 214 | 138 | 220 | 212 | 8.0 |
| Harengula jaguana | 51.6 | 48.4 | 251 | 154 | 207 | 173 | 3.0 |