Drifted seeds and fruits were studied on beaches in the Miyako Islands, southernmost of Japan. The observation was done at 64 quadrats on 21 beaches and their survey data were devided into two groups; east coast group and west coast group by species composition and number of drift disseminules. The east coast group showed that Barringtonia asiatica, Cocos nucifera and Cerbera manghas were always drifted, with the average number of species washing ashore being 9.6. On the other hand, the west coast group showed that Milletia pinnata was more frequently drifted, with the average number of species washing ashore being 3.3. The difference in these drift disseminule composition may be due to the prevailing northeasterly winds to the islands and shallower waters off the western side of the islands. In addition to the quadrat surveys, rare drift disseminules were collected on all beaches visited. The abundant assemblage of the drift disseminules indicates that there are not only many local species dispersing ocean currents, but also many disseminules from the tropics.

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On 11 January 2023, many stranded starry toados（Arothron firmamentum）（Temminck & Schlegel, 1850）were observed on sandy beaches in the southwestern part of Fukui Prefecture. Similar cases have also been reported on sandy beaches at various locations along the coast of the Sea of Japan.The fishes stranded in Fukui Prefecture displayed an unimodal length distribution, with an average total length of about 150 mm. Their body surface appearance varied from fresh, partially damaged, to almost rotten, likely indicating the time elapsed since stranding, suggesting that multiple grounding events had occurred in the study areas. Seawater temperature near the study areas decreased drastically, likely weakening the mobility of starry toados that must have been carried by coastal water currents and winds, resulting in grounding.

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Seedlings from sea-borne seed of Thespesia populnea were found on the coasts of Kyushu and Shikoku, Japan. These localities were beyond the distribution range.

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A seed of Gigasiphon was drifted on the coast of Kashiwazaki City in Niigata Prefecture, central Japan. Mature leaves were observed in the seed　germination test. Based on its morphology, it was identified as G. schlechteri.

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