Gudgeon
- Peak month
- August
- Records since 2000
- 741
- Scientific name
- Gobio gobio
Leafscale Gulper Shark
- Peak month
- April
- Records since 2000
- 724
- Scientific name
- Centrophorus squamosus
Rock Goby
- Peak month
- July
- Records since 2000
- 693
- Scientific name
- Gobius paganellus
European smelt, Smelt
- Peak month
- September
- Records since 2000
- 684
- Scientific name
- Osmerus eperlanus
Worm Pipefish
- Peak month
- August
- Records since 2000
- 605
- Scientific name
- Nerophis lumbriciformis
Twaite Shad
- Peak month
- February
- Records since 2000
- 599
- Scientific name
- Alosa fallax
Softhead grenadier, Softhead Rat-tail
- Peak month
- November
- Records since 2000
- 593
- Scientific name
- Malacocephalus laevis
Atlantic wolffish, Wolf-fish
- Peak month
- August
- Records since 2000
- 564
- Scientific name
- Anarhichas lupus
Pike-perch, Zander
- Peak month
- September
- Records since 2000
- 561
- Scientific name
- Sander lucioperca
Torsk
- Peak month
- July
- Records since 2000
- 559
- Scientific name
- Brosme brosme
Roundnose grenadier, Roundhead Rat-tail
- Peak month
- September
- Records since 2000
- 518
- Scientific name
- Coryphaenoides rupestris
Frigate tuna
- Peak month
- December
- Records since 2000
- 506
- Scientific name
- Auxis thazard
European river lamprey, River Lamprey
- Peak month
- September
- Records since 2000
- 493
- Scientific name
- Lampetra fluviatilis
Baird’s slickhead, Baird's Smooth-head
- Peak month
- September
- Records since 2000
- 492
- Scientific name
- Alepocephalus bairdii
Patagonian Blenny
- Peak month
- May
- Records since 2000
- 487
- Scientific name
- Eleginops maclovinus
Dace
- Peak month
- August
- Records since 2000
- 484
- Scientific name
- Leuciscus leuciscus
Yarrell's Blenny
- Peak month
- July
- Records since 2000
- 480
- Scientific name
- Chirolophis ascanii
Blue Ling
- Peak month
- April
- Records since 2000
- 442
- Scientific name
- Molva dypterygia
Lesser Pipefish
- Peak month
- September
- Records since 2000
- 438
- Scientific name
- Syngnathus rostellatus
Chelon ramada
- Peak month
- October
- Records since 2000
- 403
- Group
- Fish
Mediterranean Codling
- Peak month
- April
- Records since 2000
- 395
- Scientific name
- Lepidion lepidion
Black Scabbardfish
- Peak month
- September
- Records since 2000
- 394
- Scientific name
- Aphanopus carbo
Carassin
- Peak month
- November
- Records since 2000
- 389
- Scientific name
- Carassius auratus
Northern rockling
- Peak month
- February
- Records since 2000
- 338
- Scientific name
- Ciliata septentrionalis
Black Dogfish
- Peak month
- September
- Records since 2000
- 331
- Scientific name
- Centroscyllium fabricii
Thicklip Mullet
- Peak month
- September
- Records since 2000
- 331
- Scientific name
- Chelon labrosus
Echiodon drummondii
- Peak month
- November
- Records since 2000
- 323
- Group
- Fish
Portuguese Dogfish
- Peak month
- September
- Records since 2000
- 319
- Scientific name
- Centroscymnus coelolepis
Baillon's wrasse
- Peak month
- March
- Records since 2000
- 316
- Scientific name
- Symphodus bailloni
Bentnose Rabbitfish, Bigspine Spookfish, Longnose Chimaera, Long-nosed Chimaera, Longnosed Chimaera, Narrownose Chimaera
- Peak month
- September
- Records since 2000
- 293
- Scientific name
- Harriotta raleighana
Large-eyed Rabbitfish
- Peak month
- September
- Records since 2000
- 292
- Scientific name
- Hydrolagus mirabilis
Bitterling
- Peak month
- September
- Records since 2000
- 286
- Scientific name
- Rhodeus sericeus
Round Skate, Round Ray, Sandy Skate
- Peak month
- June
- Records since 2000
- 281
- Scientific name
- Rajella fyllae
Sandy ray
- Peak month
- November
- Records since 2000
- 272
- Scientific name
- Leucoraja circularis
Long-nosed Skate, Sharpnose Skate
- Peak month
- September
- Records since 2000
- 267
- Scientific name
- Dipturus oxyrinchus
Transparent goby
- Peak month
- July
- Records since 2000
- 267
- Scientific name
- Aphia minuta
Zeugopterus regius
- Peak month
- March
- Records since 2000
- 262
- Group
- Fish
Allison's Tuna, Allison Tuna, Autumn Albacore, 'Fin, Longfin, Long Fin Tunny, Pacific Long-tailed Tuna, Tuna, Yellowfinned Albacore, Yellowfin Tuna, Yellowfin Tunny
- Peak month
- February
- Records since 2000
- 261
- Scientific name
- Thunnus albacares
Jeffrey's Goby
- Peak month
- March
- Records since 2000
- 238
- Scientific name
- Buenia jeffreysii
Steven's Goby
- Peak month
- March
- Records since 2000
- 232
- Scientific name
- Gobius gasteveni
Headfish
- Peak month
- October
- Records since 2000
- 231
- Scientific name
- Mola mola
Crucian Carp
- Peak month
- January
- Records since 2000
- 226
- Scientific name
- Carassius carassius
Brama orcini
- Peak month
- August
- Records since 2000
- 218
- Group
- Fish
Great Lanternshark
- Peak month
- September
- Records since 2000
- 212
- Scientific name
- Etmopterus princeps
Kaup's Arrowtooth Eel, Gray's Cutthroat, Longnosed Eel, Long-nose Eel, Northern Cutthroat Eel, Slatjaw Cutthroat Eel
- Peak month
- September
- Records since 2000
- 212
- Scientific name
- Synaphobranchus kaupii
Blue Ling
- Peak month
- November
- Records since 2000
- 205
- Scientific name
- Molva macrophthalma
Montagu's Blenny
- Peak month
- September
- Records since 2000
- 195
- Scientific name
- Coryphoblennius galerita
Chilean Sea Bass
- Peak month
- June
- Records since 2000
- 193
- Scientific name
- Dissostichus eleginoides