Heuksan-do Island, South Korea with 76 records
Ouessant (Ushant) island, France with 76 records
Rausu, Japan with 28 records
Bolshoe Almatinskoe Lake, Kazakhstan with 21 records
Kazakhstan, Kazakhstan with 18 records
Lake Furen, Japan with 7 records
South Korea, South Korea with 6 records
Douarnenez, France with 5 records
Notsuke Peninsula Nature Center, Japan with 5 records
Nemuro Peninsula, Japan with 4 records
Pierre-Buffière, France with 4 records
La Teste-de-Buch, France with 4 records
Arcachon Bay, France with 2 records
Shibetsu, Japan with 2 records
Cape Nosappu, Japan with 2 records
Kushiro, Japan with 2 records
Saint-Renan, France with 2 records
Tokyo, Japan with 1 record
San Francisco Bay National Wildlife Refuge, USA (United States) with 1 record
Minjiang Estuary, China (Southern) with 1 record

This is a list of the top 20 specific localities, sorted by the total amount of materials.