These articles present the 2025 annual research achievements of the Marine Botany Laboratory at Kagoshima University, Japan. As we reflect on the past year, we extend our heartfelt gratitude to all the students, colleagues, co-authors, and contributors who helped make this year a success.
Articles
1. Nozomi Shiiba, Momochika Kumagai, Hikaru Endo, Tomoki Tsuruta, Keisuke Nishikawa, Yoshiki Morimoto 2025. Anti-inflammatory diterpenoids from the brown alga Dictyota coriacea. Bioscience, Biotechnology, and Biochemistry 89 (2): 224–231 https://doi.org/10.1093/bbb/zbae163 (Online: 24 January 2025).
2. Kristina M. Hill-Spanik, Hannah Rothkopf, Allan Strand, Ryan B. Carnegie, James T. Carlton, Lucia Couceiro, Jeffrey A. Crooks, Hikaru Endo, Masakazu Hori, Mitsunobu Kamiya, Gen Kanaya, Judith Kochmann, Kun-Seop Lee, Lauren Lees, Massa Nakaoka, Eric Pante, Jennifer L. Ruesink, Evangelina Schwindt, Åsa Strand, Richard Taylor, Ryuta Terada, Martin Thiel, Takefumi Yorisue, Danielle Zacherl, Erik E. Sotka 2025. Exploring the impact of the widely introduced Pacific oyster Magallana gigas on the dispersal of Bonamia (Haplosporida): A global snapshot. Diseases of Aquatic Organisms 161: 39–46 https://doi.org/10.3354/dao03834 (Online: 6 Feburary 2025)
3. Ryuta Terada 2025. Significant decline in the seaweed and seagrass communities in Kagoshima, Kyushu Island, Japan. Jeju Journal of Island Sciences 2 (1): 20–26 https://doi.org/10.23264/JJIS.2025.2.1.020 https://www.jjis.or.kr/articles/article/M4xR/ (Online: 28 February 2025)
4. Masahiro Suzuki, Ryuta Terada 2025. DNA-based floristic survey of red algae (Rhodophyta) growing in the mesophotic coral ecosystems (MCEs) offshore of Tanegashima Island, northern Ryukyu Archipelago, Japan. PLoS ONE 20 (3): e0316067 https://doi.org/10.1371/journal.pone.0316067 (Online: 10 March 2025)
5. Erik E. Sotka, Ryan B. Carnegie, James T. Carlton, Lucia Couceiro, Jeffrey A. Crooks, Hilary Heyford, Hikaru Endo, Masakazu Hori, Mitsunobu Kamiya, Gen Kanaya, Judith Kochmann, Kun-Seop Lee, Lauren Lees, Hannah Miller, Massa Nakaoka, Eric Pante, Jennifer L. Ruesink, Evangelina Schwindt, Åsa Strand, Richard Taylor, Ryuta Terada, Martin Thiel, Takefumi Yorisue, Danielle Zacherl, Allan E. Strand 2025. The genetic legacy of a global marine invader. Proceedings of the National Academy of Sciences of the United States of America 122 (15) e2418730122 https://doi.org/10.1073/pnas.2418730122 (Online: 7 April 2025)
6. Masahiro Suzuki, Chiyuki Zemba, Ryuta Terada 2025. Solieria latifolia sp. nov. and S. yoshidae sp. nov. (Solieriaceae, Rhodophyta) from offshore Tanegashima Island, Japan. Phycologia 64 (2): 137–149 https://doi.org/10.1080/00318884.2025.2494493 (Online: 12 May 2025; Issue: 1 July 2025)
7. Ryuta Terada, Kotaro Makino, Gregory N. Nishihara 2025. The photosynthetic response of the freshwater red alga Thorea okadae to environmental gradients of temperature, irradiance, desiccation, and salinity: Adaptations to its stream habitat. Journal of Applied Phycology 37 (4): 2753–2768 https://doi.org/10.1007/s10811-025-03528-7 (Online: 16 May 2025; Issue: 1 August 2025)
8. Ryuta Terada, Aoi Shindo, Hikari Moriyama, Narumi Shimboku, Gregory N. Nishihara 2025. The effects of desiccation and salinity gradients in the photochemical efficiency of a mesophotic green alga, Ryuguphycus kuaweuweu (Ulvaceae) from Kagoshima, Japan. Phycological Research 73 (4): 294–300 https://doi.org/10.1111/pre.70010 (Online: 27 August 2025; Issue: 1 October 2025)
9. Ayaka Horikoshi, Hikaru Endo, Masakazu N. Aoki, Yukio Agatsuma (2025) High recruitment of the sea urchin Mesocentrotus nudus following the 2011 Tohoku Tsunami, Japan. Marine Ecology Progress Series 770: 99–112 https://doi.org/10.3354/meps14944 (Online: 2 October 2025)
10. Christophe Vieira, Shingo Akita, Masahiro Suzuki, Ryuta Terada, Takeaki Hanyuda, Satoshi Shimada, Shinya Uwai. Hiroshi Kawai 2025. A taxonomic sudoku: Resolving the long-standing puzzle of Japanese Dictyoteae (Dictyotales, Phaeophyceae) with new records and biogeographic insights. Journal of Phycology 61 (5): 1457–1485 https://doi.org/10.1111/jpy.70084 (Online: 10 October 2025: Issue: 23 October 2025)
11. Taiju Kitayama, Masahiro Suzuki, Ryuta Terada 2025. First record of Ulva kanagawae V.Carneiro, N.T.Martins & Cassano (Ulvales, Chlorophyta) from Japan. Bulletin of the National Museum of Nature and Science. Series B, Botany 51 (4): 1–9 https://doi.org/10.50826/bnmnsbot.51.4_1 (Issue: 25 November 2025)
In press
12. Kosuke Uchimura, Yushin Fujimoto, Hikaru Endo, Momochika Kumagai 2025. Marine-derived terpenoids with anti-melanogenic activity from the brown alga Dictyopteris polypodioides in B16 melanoma cells. Bioscience, Biotechnology, and Biochemistry: zbaf167 https://doi.org/10.1093/bbb/zbaf167 (Accepted manuscript online: 8 November 2025)
13. Ryuta Terada, Masahiro Suzuki, Yoichi Sato, Gregory N. Nishihara 2026. 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. Journal of Applied Phycology 38: https://doi.org/10.1007/s10811-025-03736-1 (Submitted: 10 August 2025; Accepted: 19 November 2025)
14. Ryuta Terada, Takuzo Abe, Shingo Akita, Mitsunobu Kamiya, Hiroshi Kawai, Akira Kurashima, Chikako Nagasato, Yoshihiko Sakanishi, Hiromori Shimabukuro, Haruka Suzuki, Jiro Tanaka, Shinya Uwai, Yuki Watanabe, Ryoko Ueno, Misuzu Aoki 2026. Significant changes in seaweed community structure revealed by a nationwide long-term monitoring survey in Japan “Monitoring-Site 1000” over the past 15 years (2008–2022). Phycological Research 74: https://doi.org/10.1111/pre.70019 (Submitted: 24 August 2025; Accepted: 25 November 2025)