| English | German |
| blue-back herring | Kanadische Alse (Alosa aestivalis) |
| blue-back shad | Kanadische Alse (Alosa aestivalis) |
| blue box | Satellitenortungsgerät |
| blue box | "Blue Box" |
| blue crab | Blaukrabbe (Callinectes sapidus) |
| blue-finned tunny | gemeiner Thun |
| blue-finned tunny | roter Thun |
| blue-finned tunny | blue-fin |
| blue fish | Fettfisch |
| blue flying fish | Flugfisch (Exocoetus volitans) |
| blue flying fish | Fliegender Fisch (Exocoetus volitans) |
| blue jack mackerel | Blauer Stöcker (Trachurus picturatus (Bowdich)) |
| blue jack mackerel | Blaue Bastardmakrele (Trachurus picturatus (Bowdich)) |
| blue ling | Blauleng (Molva dypterygia, molva byrkelange) |
| blue mackerel | Indopazifische Makrele (Scomber australasicus) |
| blue marlin | Blauer marlin (Makaira nigricans) |
| blue moki | Trompeterfisch (Latridopsis ciliaris (Bloch and Schneider)) |
| blue-mouth | Blaumaul (Helicolenus dactylopterus(Delaroche,1809), \BRF) |
| blue mussel | Pfahlmuschel (Mytilus edulis) |
| blue mussel | Miesmuschel (Mytilus edulis) |
| blue point oyster | Amerikanische auster (Crassostrea virginica) |
| blue runner | Blaue Stachelmakrele (Caranx crysos, Caranx fusus) |
| blue sea cat | Wasserkatze (Anarhichas denticulatus, anarhichas latifrons) |
| blue shark | Großer Blauhai (Carcharhinus glaucus, Carcharias glaucus, Prionace glauca, Squalus glaucus) |
| blue shark | Grosser blauhai (Prionace glauca) |
| blue spotted bream | Nordische Meerbrassen (Pagellus bogaraveo (Brünnich,1768), Pagellus centrodontus (Delaroche,1809), Pagellus centrodontus (Günther,1859), Pagrus centrodontus, Sparus centrodontus) |
| blue spotted bream | Nordischer Meerbrassen (Pagellus bogaraveo (Brünnich,1768), Pagellus centrodontus (Delaroche,1809), Pagellus centrodontus (Günther,1859), Pagrus centrodontus, Sparus centrodontus) |
| blue spotted bream | Seekarpfen (Pagellus bogaraveo (Brünnich,1768), Pagellus centrodontus (Delaroche,1809), Pagellus centrodontus (Günther,1859), Pagrus centrodontus, Sparus centrodontus) |
| blue spotted bream | Meerbraum (Pagellus bogaraveo (Brünnich,1768), Pagellus centrodontus (Delaroche,1809), Pagellus centrodontus (Günther,1859), Pagrus centrodontus, Sparus centrodontus) |
| blue-spotted seabream | Blaugefleckte Meerbrasse (Pagrus caeruleostictus, Sparus caeruleostictus, Sparus ehrenbergii) |
| blue whaler | Großer Blauhai (Carcharhinus glaucus, Carcharias glaucus, Prionace glauca, Squalus glaucus) |
| blue whaler | Blauhai (Carcharhinus glaucus, Carcharias glaucus, Prionace glauca, Squalus glaucus) |
| blue whitefish | Große Schwebrenke (Coregonus wartmanni) |
| blue whitefish | Heuerling (Coregonus wartmanni) |
| blue whitefish | Seelen (Coregonus wartmanni) |
| blue whitefish | Stubben (Coregonus wartmanni) |
| blue whitefish | Hägling (Coregonus wartmanni) |
| blue whitefish | Blaufelchen (Coregonus wartmanni) |
| blue whitefish | Bläuling (Coregonus wartmanni) |
| blue whitefish | Edelfisch (Coregonus wartmanni) |
| blue whitefish | Ahlbock (Coregonus wartmanni) |
| blue whiting | Blauer wittling (Micromesistius australis, Micromesistius poutassou, gadus poutassou) |
| great blue shark | Großer Blauhai (Carcharhinus glaucus, Carcharias glaucus, Prionace glauca, Squalus glaucus) |
| great blue shark | Blauhai (Carcharhinus glaucus, Carcharias glaucus, Prionace glauca, Squalus glaucus) |
| Southern blue whiting | Südlicher Wittling (Micromesistius australis (Norman)) |
