| Glossary Term starting with G |
| Search SeaLifeBase |
| Gabelbissen |
| Gabelrollmops |
| Gaff |
| Gaffel bitar |
| Gaffel biter |
| Gaffelbidder |
| Galaxiids |
| Galeomorphii |
| Galjoen fishes |
| Gall bladder |
| Game fish |
| Gamete |
| Gametes |
| Gamone |
| Ganoid scales |
| Ganoine |
| Gap |
| Gap length |
| Gape |
| Garo |
| Gáros |
| Gars |
| Garum |
| Gas bladder |
| Gas bubble disease |
| Gas supersaturation |
| Gaspé cure |
| Gaspévirket klipfisk |
| Gastric caecum |
| Gastrolith |
| Gastropod mollusks |
| Gastropoda |
| Gastropods |
| Gastrula |
| Gear |
| Gebakken bokking |
| Gebakken gemarineerde haring |
| Gefilte fish |
| Gekruide pilchards |
| Gel |
| Gelatinous |
| Geminate species |
| Gempylotoxic fishes |
| Gempylotoxism |
| Gendarme |
| Gene |
| Gene bank |
| Gene pool |
| Genealogy |
| Genecology |
| Genera |
| Generation |
| Generation time |
| Generic name |
| Genetic distance |
| Genetic diversity |
| Genetic drift |
| Genetic marker |
| Genetic material |
| Genetic resources |
| Genetics |
| Genipores |
| Genital papilla |
| Genitalia |
| Genoholotype |
| Genome |
| Genotype |
| Genus |
| Genus group |
| Genus-group name |
| Geodesic |
| Geographic Information System |
| Geology |
| Georeferenced data |
| George Mason University |
| Georges Bank |
| Geostrophic flow |
| Geotactic |
| Geothermal vent |
| Germ ring |
| Germinal disc |
| Germplasm |
| Gerookte haaiwangen |
| Gestation period |
| Ghost flatheads |
| Ghost pipefishes |
| Giant gourami |
| Gibberfishes |
| Gibbing |
| Gig |
| Gill |
| Gill arch |
| Gill area |
| Gill chamber |
| Gill cover |
| Gill filaments |
| Gill membranes |
| Gill opening |
| Gill raker counts |
| Gill rakers |
| Gill slits |
| Gillnet |
| Gin pole |
| Gipping |
| Girth |
| Gisukeni |
| Glabrous |
| Glacial lake |
| Glacial relict |
| Gland |
| Glasgow pale |
| Glass perchlets |
| Glazing |
| Glenoid region |
| Global Positioning System |
| Global warming |
| Globiform |
| Glycerin |
| Gnathal |
| Gnathoproctal length |
| Gnomefishes |
| Goatfishes |
| Gobies |
| Goiter |
| Golden cure |
| Golden cutlet |
| Gombessa |
| Gonad |
| Gonochorism |
| Gonochoristic |
| Gonopodium |
| Gonosomatic index |
| Goodeids |
| Goosefishes |
| Gorge |
| Gorgonian |
| Gouge |
| Gouramies |
| Govii |
| Graavisuolattu lohi |
| Gracilicutes |
| Graduated |
| Graflax |
| Grammicolepidids |
| Grammistan |
| Granular |
| Granular yolk |
| Granulated |
| Granulations |
| Graphical User Interface |
| Grasp |
| Gravel |
| Gravel beach |
| Graveldiver |
| Gravid |
| Gravlaks |
| Gravlax |
| Grazer |
| Great Australian Bight |
| Great Law of Fishing |
| Green fish |
| Greeneyes |
| Greenhouse effect |
| Greenland Sea |
| Greenlings |
| Gregarious |
| Grenadiers or rattails |
| Grice Marine Biological Laboratory, Charleston, South Carolina |
| Grilse |
| Grinnell College, Iowa |
| Groin |
| GROMS migrant |
| Grooming |
| Groove |
| Groundfish |
| Groundwater |
| Group |
| Group behavior |
| Group spawning |
| Group-synchronous development |
| Grow-out |
| Grow-out operations |
| Growth |
| Growth model |
| Growth overfishing |
| Growth rate |
| Growth ring |
| Grunters |
| Grunts |
| GTZ |
| Guanin |
| Guanine |
| Guanophore |
| Guanophores |
| Guarder |
| Guarding |
| Gubbins |
| Guild |
| Guinamos alamang |
| Guitarfishes |
| Gular |
| Gular bone |
| Gular fold |
| Gular plate |
| Gular region |
| Gulf Coast Research Laboratory Museum, Mississippi |
| Gulf of Aden |
| Gulf of Alaska |
| Gulf of Aqaba |
| Gulf of Boni |
| Gulf of Bothnia |
| Gulf of California |
| Gulf of Finland |
| Gulf of Guinea |
| Gulf of Iran (Persian Gulf) |
| Gulf of Mexico |
| Gulf of Oman |
| Gulf of Riga |
| Gulf of St. Lawrence |
| Gulf of Suez |
| Gulf of Thailand |
| Gulf of Tomini |
| Gulland and Holt plot |
| Gully |
| Gulpers |
| Gunnels |
| Gurry |
| Gustatory |
| Gut |
| Gut loop |
| Gutted fish |
| Guyot |
| Gynogenesis |
| Gyodan |
| Gyomiso |
| Gyre |