🐾 What Animal Lives Where

Where does the Oithona similis live?

Oithona similis has 151,780 records in 66 countries and territories, from 1875 to 2026. Most records come from Denmark.

AnimaliaArthropodaCopepodaCyclopoidaOithonidaeOithona

When it is recorded

JFMAMJJASOND

Peak month: January. Records cluster in the months an animal is present and being looked for, so a summer peak can reflect observer effort as much as the animal.

Where it is recorded

PlaceRecordsShare
Denmark 13,409
Antarctica 12,713
Canada 10,414
Sweden 8,732
Germany 7,266
Ukraine 7,254
Romania 5,935
United States 5,729
Russia 5,510
Japan 4,659
Australia 4,653
Svalbard and Jan Mayen 2,855
New Zealand 2,447
United Kingdom 2,013
Italy 1,886
Norway 1,332
Poland 1,259
South Georgia 1,227
Georgia 767
France 624
Türkiye 575
ZZ 469
Greenland 355
Chile 317
Spain 310
Bulgaria 297
Faroe Islands 204
Ireland 182
Brazil 164
Iceland 128
Greece 123
Latvia 117
South Korea 105
Belgium 88
Tunisia 81
Heard & McDonald Islands 78
Argentina 77
French Southern Territories 75
Namibia 74
Guernsey 68

Showing the top 40 of 66 places.

Related animals

Others in the family Oithonidae.

Oithona nana
28,612 records
Oithona frigida
1,356 records
Status from the records: resident
Recorded across many years and months — an established presence. This is inferred from how many years and months the animal appears in, not from a range map — treat it as evidence, not a formal assessment.