A dataset of molluscan fauna sampled in estuaries of medium and small rivers in Kyushu, Japan

Study Extent

The surveys were carried out from 2015 to 2017 in river estuaries, which were belonged to Kyushu, Japan.

Sampling

Habitats in half tide and spring tide belonging to one reach section (approximately 10 times the width of the river) were selected as investigation sites. At each habitat, we identified the species after collecting shellfish (Bivalvia, Gastropoda, and Polyplacophora) from the surface layer and 10-cm deep in the ground with 50-cm square quadrats.

Method steps

1. 1. Habitats conducted sampling shellfish were identified in one reach (approximately 10 times the width of the river) from the river mouth. 2. Locating the 50-cm square quadrats. 3. collecting shellfish (Bivalvia, Gastropoda, and Polyplacophora) from the surface layer and 10-cm deep in the ground. 4. Specimens were shipped back to the lab for correct species identification.

Gould (1859), Reeve (1839), Reeve (1854), Lischke (1868), Kira (1961), Pilsbry (1901), Dunker (1861), Reeve (1855), Lischke (1870), Sasaki and Okutani (1994), A. Adams (1853), Tapprone-Canefri (1874), Gmelin (1791), Philippi (1849), Re'cluz (1853), Dunker (1860), Martens (1879), Benson (1836), Linnaeus(1758), Lischke (1871), Kiener (1841), Lischke (1869), Crosse (1862), K. Martin (1899), Philippi (1848), A. Adams (1863), A. Adams (1855), Philippi (1844), Philippi (1846), Souleyet in Eydoux and Souleyet (1852), Küster (1860), Powys (1835), Dunker (1847), Reeve (1847), Kuroda (1957), Pfeiffer (1864), Reeve (1844), Oyama (1950), Gould (1861), Gould (1850), Lamarck (1819), Adams & Reeve (1850), Deshayes (1855), Habe (1961), Benson (1842), Jay (1857), Reeve (1843), Prime (1864), Gray (1828), Roeding, 1798, Donovan (1834), Pilsbry (1894), Reeve (1863), Rafinesque (1815), Tapparone-Canefri (1874), Dunker (1882), Lischke (1873), Carpenter (1857) were used as a taxonomic reference for this work. The orders are Veneroida (19 species), Docoglossa (14), Sorbeoconcha (12), Vetigastropoda (6), Neritimorpha (5), Discopod (5), Mytiloida (5), Chitonida (3), Neogastropoda (2), Pulmonata (2), Basommatophora (2), Anomalodesmata (2), Arcoida (1), Architaenioglossa (1), Systelommatophora (1), and Pterioida (1). The families are Patellidae (12), Neritidae (8), Patamidid (5), Mytilidae (5), Littorinidae (4), Trochidae (4), Tellinidae (3), Psammobiidae (3), Phenacolepadidae (2), Mactridae (2), Petricolidae (2), Nacellidae (2), Batillariidae (2), Muricidae (2), Turbinidae (2), Nassariidae (2), Ellobiidae (2), Siphonariidae (2), Laternulidae (2), Mesodesmatidae (1), Trapezidae (1), Cyrenidae (1), Glauconomidae (1), Solenidae (1), Cerithiidae (1), Assimineidae (1), Buccinidae (1), Vermetidae (1), Ischnochitonidae (1), Acanthochitonidae (1), Chitonidae (1), Arcidae (1), Ampullariidae (1), Onchidiidae (1), and Isognomonidae (1).

1. Lottiidae
   rank: family
2. Veneridae
   rank: family
3. Potamididae
   rank: family
4. Mytilidae
   rank: family
5. Neritidae
   rank: family
6. Littorinidae
   rank: family
7. Psammobiidae
   rank: family
8. Tellinidae
   rank: family
9. Phenacolepadidae
   rank: family
10. Nacellidae
    rank: family
11. Batillariidae
    rank: family
12. Muricidae
    rank: family
13. Turbinidae
    rank: family
14. Nassariidae
    rank: family
15. Ellobiidae
    rank: family
16. Siphonariidae
    rank: family
17. Laternulidae
    rank: family
18. Tegulidae
    rank: family
19. Trochidae
    rank: family
20. Mactridae
    rank: family
21. Mesodesmatidae
    rank: family
22. Cyrenidae
    rank: family
23. Glauconomidae
    rank: family
24. Solenidae
    rank: family
25. Cerithiidae
    rank: family
26. Assimineidae
    rank: family
27. Buccinidae
    rank: family
28. Vermetidae
    rank: family
29. Ischnochitonidae
    rank: family
30. Acanthochitonidae
    rank: family
31. Chitonidae
    rank: family
32. Arcidae
    rank: family
33. Ampullariidae
    rank: family
34. Onchidiidae
35. Anatinellidae
36. Trapezidae
37. Pteriidae

We surveyed 70 river estuaries in the Kyushu region in Japan. Watershed areas of investigated rivers ranged from 1 km2 to 60 km2. The rivers were selected based on the variation in environmental conditions, such as the Ariake Sea and Buzen Sea, where the tide range is large and the rivers flowing to the Sea of Japan, where the wave energy is dominant.