New article: 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)

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, including the disappearance of kelp forests. Since the article is open access, anyone can download it from the website. The website also provides extensive supplementary materials, including many beautiful underwater photos taken during the surveys—please don’t miss them.

 

R. Terada, T. Abe, S. Akita, M. Kamiya, H. Kawai, A. Kurashima, C. Nagasato, Y. Sakanishi, H. Shimabukuro, H. Suzuki, J. Tanaka, S. Uwai, Y. Watanabe, R. Ueno, M. 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 (1): 39–56 

 

https://doi.org/10.1111/pre.70019 (Online: 8 December 2025; Issue: January 2026)

https://onlinelibrary.wiley.com/doi/10.1111/pre.70019

https://doi.org/10.1111/pre.70019

 

Second Jeju International Island Symposium

Professor Ryuta Terada, the head of the Marine Botany Laboratory, was invited to the 2nd Jeju International Island Symposium as one of the speakers. The symposium was held from July 9th to 11th in Jeju City, Korea. He presented the status of the nationwide long-term monitoring survey known as "Monitoring-Site 1000" in Japan over the past 15 years. As Jeju Island and Kyushu Island are very close, with a distance of around 200 km between them, we believe our concerns about the degradation of seaweed communities observed in Kyushu may be helpful in considering the possibility of future changes in seaweed communities on Jeju Island. We express our thanks to the organizing committee of this symposium for inviting him to this wonderful opportunity.

 http://amkijeju.re.kr/98

 

9th Asian Pacific Phycological Forum (APPF2024)

The 9th Asian Pacific Phycological Forum (APPF2024) was successfully closed except for the excursion that is conducted today. As one of the co-chairs of the LOC, Ryuta Terada wishes to express sincere thanks to all participants, the LOC, and staff members who contributed to the conference. The next meeting will be held in April 2027 in Ho Chi Minh City, Vietnam.

 

JSP48

We will attend the 48th annual Japanese Society of Phycology meeting (JSP48) held at Kobe University this weekend. From the Marine Botany Lab, a total of nine presentations will be presented by faculty and students. The photo shows printed posters.

 

 

January issue of Phycological Research

Please check out the cover page of the January issue of Phycological Research. In Kagoshima, Japan, you can see a beautiful underwater view of an edible brown alga, Sargassum fusiforme.

https://onlinelibrary.wiley.com/toc/14401835/2023/71/1

Two articles from my lab are in this issue.

Yonemori, Kokubu, Nishihara, Endo, Terada 2023. The effects of desiccation and salinity gradients in the PSII photochemical efficiency of an intertidal brown alga, Sargassum fusiforme from Kagoshima, Japan

https://onlinelibrary.wiley.com/doi/10.1111/pre.12491 

Ito, Yoshioka, Shimabukuro, Nishihara, Endo, Terada 2023. The effect of temperature, light-spectrum, desiccation, and salinity gradients on the photosynthetic performance of a subtidal brown alga, Sargassum macrocarpum from Japan

https://onlinelibrary.wiley.com/doi/10.1111/pre.12508

Japanese Society of Phycology Annual Meeting 2018

The annual meeting of Japanese Society of Phycology was held at Tohoku University, Sendai City during 23 through 25 March 2018. From our lab, Ryuta Terada, Hikaru Endo and three graduate students presented own research at the poster and oral sessions. Next meeting will be held at Kyoto University in March 2019. See you in Kyoto!

JSP Annual meeting 2018

8th Asian Wetland Symposium

The 8th Asian Wetland Symposium (AWS2017) was held in Saga City, Kyushu Island, Japan during 7-11 November 2017. From MB Lab, a MSc student attended and presented the study in the poster session.

Best poster presentation award in the 8th Asian-Pacific Phycological Forum

A PhD. student of the MB lab, Mr. Jumpei Kozono was awarded the best poster presentation award in the 8th Asian-Pacific Phycological Forum (APPF) that was held in Kuala Lumpur, Malaysia in October 2017. APPF is an international conference of Phycology in the Asian-Pacific Region that has been held every three years, and more than 300 participants were attended.
Based on the field and laboratory experiments, he presented the ecophysiological study of an endangered freshwater red alga, Thorea okadae from Japan, and determined the optimum irradiance and temperature environments on the photosynthetic performance. This knowledge is expected to contribute the conservation of the optimum habitat for this species.

 https://www.kagoshima-u.ac.jp/topics/2017/10/post-1274.html

8th Asian-Pacific Phycological Forum (APPF)

The 8th Asian-Pacific Phycological Forum (APPF) was held during 8th through 13th October in Kuala Lumpur, Malaysia, and more than 200 participants from the Asian-Pacific region were attended.
From the MB lab, professor Ryuta Terada participated as one of the invited speaker in the Kelp biology Session, and two PhD students, Jumpei Kozono and Iris Ann Borlongan also attended to the contributed poster and oral sessions, respectively.
Next APPF will be held in Hokkaido University, Sapporo, in September 2020. See you again in Japan!

Welcome address by Dr. Boo, the president of Asian Pacific Phycological Society

International Symposium “Fisheries Science for future generations”

International Symposium “Fisheries Science for future generations” was held at Tokyo University of Marine Science and Technology (TUMSAT), Tokyo, during 22 - 24 September as the 85th years anniversary meeting of the Japanese Society of Fisheries Science.
Dr. Endo and his two Msc students, Ms. Shimada and Ms. Fukumoto presented own studies in the poster session.

International Phycological Congress in Poland

The 11th International Phycological Congress was held in Szczecin, Poland. Two researchers of MBL, Dr. Ryuta Terada and Ms. Iris Ann Borlongan attended there, and presented their recent topics of research. Terada was also contributed as a chairperson in the oral session of Marine Algal Ecology. Next conference, IPC12 will be held in Chile.

Opening Ceremony

Ice Breaker

Oral session of the Marine Algal Ecology

Top ten accessed article

Our following article is listed in a top ten accessed articles from the Phycological Research 2014/2015
Now it is free to access ! Download Now!

http://onlinelibrary.wiley.com/journal/10.1111/%28ISSN%291440-1835/homepage/MostAccessed.html

Yuki Watanabe, Gregory N. Nishihara, Shigemitsu Tokunaga and Ryuta Terada 2014
Effect of irradiance and temperature on the photosynthesis of a cultivated red alga, Pyropia tenera (= Porphyra tenera), at the southern limit of distribution in Japan.
Phycological Research DOI: 10.1111/pre.12053
http://onlinelibrary.wiley.com/d…/10.1111/pre.12053/abstract

Meeting in Shanghai

The 2nd International Symposium of Aquaculture and Fisheries Education (ISAFE2) was held last week at Shanghai Ocean University, China, and from our lab, Ryuta Terada was invited as a special session speaker.

Annual meetingof Japanese Society of Phycology（日本藻類学会第39回大会）

The 39th annual meeting of Japanese Society of Phycology (JSP35) has been held at Kyushu University in Fukuoka, Japan. According to the organizer, more than 200 participants  seems to be attended.
From our lab, five students including two undergraduate students presented own research. Next meeting will be held in Tokyo in March 2016.

Phycology team of RT & GNN

Poster Session

日本藻類学会第39回大会

日本藻類学会第39回大会のプログラムが以下のリンクからダウンロードできます。

http://sourui.org/annual_meeting/JSP_39th/materials/JSP39_program-2.pdf

研究室からは、以下の発表が予定されています。

寺田竜太・渡邉裕基・藤本みどり・畳谷伊織・國分翔伍・Gregory N. Nishihara：与論島産シマチスジノリの驚くべき生育環境と光合成に対する光，温度の影響

寺田竜太・川井浩史・倉島　彰・坂西芳彦・島袋寛盛・田中次郎・村瀬　昇・青木美鈴・横井謙一：環境省モニタリングサイト1000沿岸域調査における藻場のモニタリング　2014年の成果

The Authors of Phycologia（国際藻類学会のFacebookで紹介されました）

An official Facebook of Phycologia, International Phycological Society, featured the current and forthcoming articles of our lab including Ryuta TERADA. We are honored to receive this kind of opportunity.
Please take a look at the link.

https://www.facebook.com/pages/International-Phycological-Society/1541750349437521?fref=nf

国際藻類学会のFacebookの企画「The Auhtors of Phycologia」で当研究室の寺田が紹介されました。最近発表した論文（Phycologiaの1月号と3月号）を通して，最もエキサイティングなことと大変だったことをコメントしています。
大変光栄なことで，感謝しています。

以下は，国際藻類学会のFacebookのリンクです。

https://www.facebook.com/pages/International-Phycological-Society/1541750349437521?fref=nf

Symposium "Biodiversity of Ryukyu Islands, its characteristics and conservation" （日本生態学会講演会「南西諸島の生物多様性，その成立と保全」）

We will be having an symposium entitled as "Biodiversity of Ryukyu Islands, its characteristics and conservation" at 62th annual meeting of Ecological Society of Japan. The annual meeting of ESJ is held only for the members, but this symposium is open for the public. Free of charge.
 It will be held at #101 room, Faculty of Education, Kagoshima University at 13:00 to 16:30 on March 22 2015.

第62回日本生態学会大会が2015年3月18日から22日まで，鹿児島大学郡元キャンパスで開催されますが，大会最終日の22日には第18回日本生態学会講演会「南西諸島の生物多様性，その成立と保全」と題した公開講演会が開催されます。

公開講演会には，生態学会の会員でない方もご参加いただけます（入場無料）。

先着300名に，講演者が講演会を機に執筆した図書「南西諸島の生物多様性，その成立と保全」を1冊謹呈します（非会員優先）。

日時：2015年3月22日（日）13時00分から16時30分
場所：鹿児島大学教育学部101講義室（L会場）
（鹿児島大学郡元キャンパス）
お越しの際は公共交通機関をご利用下さい。

Best Presentation Award（大学院生が日本水産学会九州支部会で優秀学生発表賞を受賞しました）

Iori Tatamidani, a MSc student of the lab, won the Best Presentation Award at the Kyushu regional meeting of Japanese Society of Fisheries Science that was held in Miyazaki on January 10 .

大学院水産学研究科修士課程の畳谷伊織さんが，宮崎市で1月10日に開催された日本水産学会九州支部総会の口頭発表で優秀学生発表賞を受賞しました。受賞した発表演題は以下のとおりです。

畳谷伊織（鹿大水）・Gregory N. Nishihara（長大海セ）・寺田竜太（鹿大水）
九州南部における海産顕花植物2種の光合成活性

畳谷さんは，鹿児島湾に生育する海草2種（アマモとコアマモ）の光合成における光や温度の影響について，酸素電極とパルス変調クロロフィル蛍光測定を用い て明らかにしました。海草は沿岸域における主要な基礎生産者として重要な役割を担っていますが，海草藻場の減少が深刻な問題になっています。本発表では， 水温の変化が光合成活性に与える影響を明らかにすると共に，日中の光量変化に伴う光合成活性の変化を水中でリアルタイムに測定し，応答の過程を明らかにし ました。

http://www.fish.kagoshima-u.ac.jp/fish/information/H26/150115.html

Autumn Meenting of JSFS（日本水産学会秋季大会で大学院生が発表）

Autumn meeting of the Japanese Society of Fisheries Science (JSFS) was held at Kyushu University, Fukuoka, Japan.
On behalf of our lab, four graduate students were attended to the meeting, and three students talked their researches at the poster session. Everything was finished successfully, and the now is time to prepare the manuscript for publish.

福岡市で開催された日本水産学会秋季大会で，大学院生3名が学会発表を行いました。
個々の研究成果については，日本水産学会の国際誌「Fisheries Science」の他，各専門分野の学術雑誌で刊行される予定です。

平成26年度日本水産学会水産増殖懇話会 第一回講演会 西日本における海藻養殖の現状と課題

日本水産学会秋季大会（九州大学）の水産増殖懇話会でシンポジウムを開催します。一般向けのシンポジウムですので，入場無料，水産学会の会員でなくても参加可能です。ご関心のある皆様のお越しをお待ちしております。

平成26年度日本水産学会水産増殖懇話会　第一回講演会
西日本における海藻養殖の現状と課題

主催：公益社団法人日本水産学会　水産増殖懇話会
日時：平成26年9月19日（金）13:00〜17:00
場所：九州大学箱崎キャンパス文系地区共通講義棟4階401講義室
　　　〒812-0053福岡市東区箱崎6-10-1

企画責任者：寺田竜太・門脇秀策・川口栄男・望岡典隆

１．有明海のアマノリ養殖：現状と課題　　　　　　　　　　　
川村嘉応（佐賀有明水振セ）
２．暖海性アマノリ類の遺伝資源としての有用性の検討
　　－高水温耐性への活用－
玉城泉也（水研セ西海水研）
３．カイガラアマノリの養殖技術開発と展望
阿部真比古（水大校），畑間俊弘，鹿野陽介（山口水研セ）
４．ヒジキの養殖技術開発：現状と課題
　　徳光俊二（大分水研）
５．ワカメの養殖：現状と課題
　　桐山隆哉（長崎水試）
６．沖縄県における亜熱帯性海藻養殖の現状と将来展望
　　井上　顕（沖縄水海研セ）
７．海洋深層水を利用したスジアオノリ生産の現状と課題　　
　　平岡雅規（高知大海洋研）