| brazil | rio de janeiro | laminaria abyssalis | species | 3 | 0 |
| canada | british columbia | laminaria ephemera | species | 6 | 0 |
| canada | british columbia | laminaria setchellii | species | 13 | 0 |
| canada | british columbia | laminaria yezoensis | species | 11 | 0 |
| canada | manitoba | laminaria digitata | species | 3 | 0 |
| canada | manitoba | laminaria solidungula | species | 6 | 0 |
| canada | new brunswick | laminaria digitata | species | 26 | 0 |
| canada | newfoundland and labrador | laminaria digitata | species | 6 | 0 |
| canada | newfoundland and labrador | laminaria solidungula | species | 1 | 0 |
| canada | nova scotia | laminaria digitata | species | 10 | 0 |
| canada | nunavut | laminaria solidungula | species | 1 | 0 |
| china | | laminaria sp. | species | 1 | 0 |
| china | | laminaria sp. rongfu | species | 1 | 0 |
| china | | laminaria sp. strain 901 | species | 1 | 0 |
| croatia | | laminaria rodriguezii | species | 1 | 0 |
| france | | laminaria digitata | species | 2 | 0 |
| france | | laminaria hyperborea | species | 1 | 0 |
| france | | laminaria ochroleuca | species | 2 | 0 |
| france | bretagne region | laminaria digitata | species | 9 | 0 |
| france | bretagne region | laminaria hyperborea | species | 9 | 0 |
| france | bretagne region | laminaria ochroleuca | species | 33 | 0 |
| france | bretagne region | laminaria sp. | species | 1 | 0 |
| france | nord-pas-de-calais region | laminaria digitata | species | 7 | 0 |
| greenland | | laminaria digitata | species | 1 | 0 |
| greenland | | laminaria solidungula | species | 1 | 0 |
| ireland | | laminaria hyperborea | species | 3 | 0 |
| ireland | | laminaria ochroleuca | species | 1 | 0 |
| isle of man | | laminaria digitata | species | 3 | 0 |
| japan | hokkaido prefecture | laminaria sachalinensis | species | 4 | 0 |
| japan | hokkaido prefecture | laminaria yezoensis | species | 4 | 0 |
| namibia | | laminaria pallida | species | 3 | 0 |
| namibia | erongo region | laminaria pallida | species | 3 | 0 |
| norway | | laminaria hyperborea | species | 7 | 0 |
| norway | hordaland county | laminaria digitata | species | 2 | 0 |
| norway | hordaland county | laminaria hyperborea | species | 7 | 0 |
| norway | nordland county | laminaria digitata | species | 2 | 0 |
| norway | oppland county | laminaria digitata | species | 16 | 0 |
| portugal | | laminaria ochroleuca | species | 3 | 0 |
| south africa | | laminaria pallida | species | 17 | 0 |
| south africa | the western cape province | laminaria pallida | species | 2 | 0 |
| spain | galicia | laminaria ochroleuca | species | 3 | 0 |
| united kingdom | england | laminaria digitata | species | 2 | 0 |
| united kingdom | northern ireland | laminaria digitata | species | 3 | 0 |
| united states | | laminaria digitata | species | 2 | 0 |
| united states | | laminaria sp. | species | 2 | 0 |
| united states | alaska | laminaria solidungula | species | 8 | 0 |
| united states | california | laminaria sinclairii | species | 2 | 0 |
| united states | maine | laminaria digitata | species | 9 | 0 |
| united states | oregon | laminaria setchellii | species | 2 | 0 |
| united states | oregon | laminaria sinclairii | species | 2 | 0 |
| united states | rhode island | laminaria digitata | species | 4 | 0 |
| united states | washington | laminaria ephemera | species | 1 | 0 |