Caulerpa andamanensis, a newly recorded species from Japan, collected from Okinoerabu-jima Island in the Ryukyu Archipelago. Suzuki, Ohashi, Hasegawa, Namba, Kosugi, Terada 2026 Phycol Res onlinelibrary.wiley.com/doi/10.1111/... doi.org/10.1111/pre....

A brown alga, Ecklonia cava subsp. kurome, from Takeno, Hyogo Prefecture, Japan.

A view of the brown alga Undaria japonica observed during the field survey at Takeno, Hyogo Prefecture, Japan, this month.

A view from the monthly field survey of #Ecklonia radicosa at Nagashima Island, Kagoshima Prefecture, Japan. #algae

A red #alga, #Vanvoorstia coccinea, from Nagashima Island, Kagoshima Prefecture, Japan.

Congratulations to Dr. Min-Khant-Kyaw, Dr. Kato, and the other distinguished co-authors on this excellent article on the coralline diversity of mesophotic rhodoliths in subtropical Japan. doi.org/10.1111/jpy.... onlinelibrary.wiley.com/doi/10.1111/...

Congratulations to Dr. Koja and the distinguished co-authors on their interesting article on the ecophysiology of the cultivated green alga Gayralia kuroshiensis from Fukushima, Japan. Koja, Sato, Nishihara, Terada 2026. DOI: 10.1016/j.algal.2026.104664 www.sciencedirect.com/science/arti...

A green #alga, #Caulerpa okamurae, from Nagashima Island, Kagoshima, Japan. #Phycology #algae

A red alga, Sebdenia flabellata, from Nagashima Island, Kagoshima Prefecture, Japan.

A red alga, Solieria dichotoma, from Nagashima Island, Kagoshima Prefecture, Japan. #phycology #algae

Please take a look at our new article. Terada et al. 2026 Humidity-dependent variation in photochemical efficiency during aerial exposure in sporophytes of the cultivated red alga Pyropia yezoensis f. narawaensis from Saga, Japan. Algal Research 104699 www.sciencedirect.com/science/arti...

A movie of the freshwater red alga Sheathia yoshizakii simply waving in an irrigation canal. #Phycology #algae #phycologyfriday

An endangered freshwater red alga, #Nemalionopsis shawii (formerly referred to as Nemalionopsis tortuosa in Japan), from Kagoshima, Japan. www.sciencedirect.com/science/arti...

Happy St. Patrick's Day! Acetabularia ryukyuensis @ Kayo, Okinawa-jima Island, Japan

A brown alga, Petalonia binghamiae, from Satsuma-Sendai City, Kagoshima, Japan.

Happy Valentine’s Day! Gametophytes of Alaria crassifolia (Laminariales) from Hokkaido, Japan.

A green alga, #Caulerpa chemnitzia var. laetevirens, from Kagoshima, Japan. The characteristic ecophysiology of this #alga is reported at: doi.org/10.1111/pre.... Terada et al. 2024

A green alga, Caulerpa okamurae, from Tomioka, Reihoku, Kumamoto Prefecture, Japan.

A red #alga, #Martensia jejuensis, from Ei, Kagoshima, Japan. #algae

A red alga, Chondria lancifolia, from Nagashima Island, Kagoshima, Japan.

Wishing you and yours health, happiness, and success in the new year.

Please take a look at our new study revealing the phylogenetic identity and temperature effects on the photochemical efficiency of the edible green alga “Hitoegusa” (Gayralia spp., referred to as Monostroma nitidum in Japan) from Kagoshima and Okinawa, Japan. link.springer.com/article/10.1...

Please take a look at our new review article on the nationwide long-term monitoring program in Japan, “Monitoring-Site 1000,” which summarizes 15 years of surveys (2008–2022) and reveals significant changes in seaweed community structure. Terada et al. 2026 Phycol Res doi.org/10.1111/pre....

The red alga, #Campylaephora hypnaeoides from Takeno, Hyogo Prefecture, Japan.

A red alga, #Campylaephora hypnaeoides from Takeno, Hyogo Prefecture, Japan.

Celebrating #Kelp Day in Japan 15 November 2025 #Saccharina japonica #algae #Phycology

Happy #Halloween! Colpomenia peregrina #algae #phycology #phycologyfriday

Happy World Algae Day! October 12

Please take a look at our new article on the reassessment of the taxonomic status of Dictyoteae algae from Japan. Congratulations to Dr. Christophe Vieira on this excellent work! Christophe Vieira et al. 2025. Journal of Phycology DOI: 10.1111/jpy.70084 onlinelibrary.wiley.com/doi/10.1111/...

The long summer break has come to an end, and the fall semester at Kagoshima University began last week. The Marine Botany Lab is offering the Phycology course (1b1212) on Monday mornings for undergraduate students in the Department of Fisheries. Welcome to the fascinating underwater world of algae!

A green alga, Acetabularia ryukyuensis, from Kayo Beach, Okinawa, Japan.

Please take a look at our new article on the effects of desiccation and salinity gradients on the photochemical efficiency of a mesophotic green alga, Ryuguphycus kuaweuweu. Terada et al. 2025 Phycological Resarch doi.org/10.1111/pre....

A brown alga, Saccharina japonica, found on Charatsunai Beach in Muroran City, Hokkaido.

A red alga, Gloiopeltis furcata, found on Charatsunai Beach, Muroran city, Hokkaido, Japan.

A brown alga, Myagropsis myagroides, found on Takeno, Hyogo Prefecture, Japan.

Kallymenia perforata from Noshima, Nagashima Islands, Kagoshima.

A brown alga, Sporochnus keyari found on Nagashima Island, Kagoshima Prefecture, Japan.

A red alga, Dudresnaya kuroshioensis, found on Okinoerabu-jima Island in the Ryukyu Islands.

A green alga, Umbraulva amamiensis, found on Okinoerabu-jima Island in the Ryukyu Islands.

Fucoid communities @ Nagashima Island, Kagoshima Prefecture

During the oral session held on June 12 at the 13th International Phycological Congress, Dr Ryuta Terada, head of the Marine Botany Lab, presented his recent research on photosynthetic studies of the cultivated red alga Pyropia yezoensis (photo), using a newly developed photon detection device.

Gala Dinner International Phycological Congress 2025 @ Hanann Aloba Beach Resort in Bohol, Philippines.

The 13th International Phycological Congress (IPC2025) is currently being held at Alona Beach Resort in Bohol, Philippines.

Alona Beach, Panglao, Bohool, Philippines

Avrainvillea obscura, a green alga found on Okinoerabu-jima Island in the Ryukyu Islands.

Caulerpa filicoides, a green alga found on Okinoerabu-jima Island in the Ryukyu Islands.

Chlorodesmis fastigiata, a green alga found on Okinoerabu-jima Island.

Sargassum ilicifolium, a brown alga found on Okinoerabu-jima Island in the Ryukyu Islands.

In collaboration with the Marine Botany Lab and Kagoshima City Aquarium this week, we conducted a marine algal survey on the remote island of Okinoerabu-jima in the Ryukyu Islands. Surveys were carried out at more than ten sites along the island’s entire coastline using SCUBA and skin diving.

Distromium decumbens, a brown alga found offshore of Tanegashima Island, the northern Ryukyu Islands.