Podocerus variegatus
- Peak month
- March
- Records since 2000
- 67
- Group
- Crustaceans
Sphaeroma serratum
- Peak month
- September
- Records since 2000
- 67
- Group
- Crustaceans
Jaera nordmanni
- Peak month
- April
- Records since 2000
- 66
- Group
- Crustaceans
Pleurocrypta porcellanaelongicornis
- Peak month
- May
- Records since 2000
- 65
- Group
- Crustaceans
Eurydice affinis
- Peak month
- September
- Records since 2000
- 64
- Group
- Crustaceans
Lophozozymus incisus
- Peak month
- September
- Records since 2000
- 64
- Group
- Crustaceans
Stenopleustes nodifera
- Peak month
- August
- Records since 2000
- 64
- Group
- Crustaceans
Bathymedon longimanus
- Peak month
- October
- Records since 2000
- 63
- Group
- Crustaceans
Marinogammarus marinus
- Peak month
- August
- Records since 2000
- 63
- Group
- Crustaceans
Metopa borealis
- Peak month
- August
- Records since 2000
- 63
- Group
- Crustaceans
Colomastix pusilla
- Peak month
- June
- Records since 2000
- 62
- Group
- Crustaceans
Cyprideis torosa
- Peak month
- August
- Records since 2000
- 62
- Group
- Crustaceans
Praunus inermis
- Peak month
- September
- Records since 2000
- 62
- Group
- Crustaceans
Dosima fascicularis
- Peak month
- August
- Records since 2000
- 60
- Group
- Crustaceans
Gammarus lacustris
- Peak month
- May
- Records since 2000
- 60
- Group
- Crustaceans
Harpinia mucronata
- Peak month
- April
- Records since 2000
- 60
- Group
- Crustaceans
Acartia discaudata
- Peak month
- August
- Records since 2000
- 59
- Group
- Crustaceans
Jaera ischiosetosa
- Peak month
- January
- Records since 2000
- 59
- Group
- Crustaceans
Microniphargus leruthi
- Peak month
- May
- Records since 2000
- 59
- Group
- Crustaceans
A hermit crab
- Peak month
- July
- Records since 2000
- 58
- Scientific name
- Cestopagurus timidus
Gammarus fossarum
- Peak month
- April
- Records since 2000
- 58
- Group
- Crustaceans
Pandalus borealis
- Peak month
- August
- Records since 2000
- 58
- Group
- Crustaceans
Parapleustes assimilis
- Peak month
- July
- Records since 2000
- 58
- Group
- Crustaceans
Porcellionides cingendus
- Peak month
- June
- Records since 2000
- 58
- Group
- Crustaceans
Tanais dulongii
- Peak month
- September
- Records since 2000
- 58
- Group
- Crustaceans
Austrosyrrhoe fimbriatus
- Peak month
- September
- Records since 2000
- 57
- Group
- Crustaceans
Sarsinebalia urgorrii
- Peak month
- April
- Records since 2000
- 57
- Group
- Crustaceans
Ascidicola rosea
- Peak month
- May
- Records since 2000
- 56
- Group
- Crustaceans
Cryptorchestia cavimana
- Peak month
- May
- Records since 2000
- 56
- Group
- Crustaceans
Nannastacus brevicaudatus
- Peak month
- May
- Records since 2000
- 56
- Group
- Crustaceans
Pleuromamma gracilis
- Peak month
- January
- Records since 2000
- 56
- Group
- Crustaceans
Allomelita pellucida
- Peak month
- December
- Records since 2000
- 55
- Group
- Crustaceans
Crab
- Peak month
- July
- Records since 2000
- 55
- Scientific name
- Achaeus cranchii
Gastrosaccus sanctus
- Peak month
- February
- Records since 2000
- 55
- Group
- Crustaceans
Heterotanais oerstedii
- Peak month
- April
- Records since 2000
- 55
- Group
- Crustaceans
Leptocheirus tricristatus
- Peak month
- January
- Records since 2000
- 55
- Group
- Crustaceans
Metopa rubrovittata
- Peak month
- June
- Records since 2000
- 55
- Group
- Crustaceans
Paraeuchaeta norvegica
- Peak month
- October
- Records since 2000
- 55
- Group
- Crustaceans
Tadpole shrimp
- Peak month
- September
- Records since 2000
- 55
- Scientific name
- Triops cancriformis
Nebalia reboredae
- Peak month
- April
- Records since 2000
- 54
- Group
- Crustaceans
Macropodia deflexa
- Peak month
- August
- Records since 2000
- 53
- Group
- Crustaceans
Gyge branchialis
- Peak month
- June
- Records since 2000
- 52
- Group
- Crustaceans
Philoscia affinis
- Peak month
- April
- Records since 2000
- 52
- Group
- Crustaceans
Socarnes filicornis
- Peak month
- August
- Records since 2000
- 52
- Group
- Crustaceans
Caprella septentrionalis
- Peak month
- May
- Records since 2000
- 51
- Group
- Crustaceans
Haplostylus lobatus
- Peak month
- January
- Records since 2000
- 51
- Group
- Crustaceans
Apolochus spencebatei
- Peak month
- May
- Records since 2000
- 50
- Group
- Crustaceans