新しい論文：鹿児島県長島における藻場の長期変化，特に東シナ海に面した沿岸からの藻場の消失

 新しい論文が出ました。環境省モニタリングサイト1000沿岸域調査に連動した調査結果です。

寺田竜太，進藤蒼，田中美和，江﨑聡 2021．鹿児島県長島における藻場の長期変化，特に東シナ海に面した沿岸からの藻場の消失．日本水産学会誌 

DOI: 10.2331/suisan.21-00023

https://www.jstage.jst.go.jp/article/suisan/advpub/0/advpub_21-00023/_article/-char/ja

New article: Morpho-anatomical and molecular reassessments of Rhodymenia prostrata (Rhodymeniaceae, Rhodophyta) from Japan support the recognition of Halopeltis tanakae nom. nov.

Please take a look at our new article featuring Halopeltis tanakae nom. nov.

 

Masahiro Suzuki, Ryuta Terada (2021) 

Morpho-anatomical and molecular reassessments of Rhodymenia prostrata (Rhodymeniaceae, Rhodophyta) from Japan support the recognition of Halopeltis tanakae nom. nov. 

Phycologia 60 (6): 582 – 588 

DOI: 10.1080/00318884.2021.1959743

 

https://www.tandfonline.com/doi/abs/10.1080/00318884.2021.1959743?journalCode=uphy20 

 

 

Halopeltis tanakae

New article: The phenology of epiphytic diatoms and epifauna observed on Zostera marina

Introducing a new article featuring the phenology of epiphytic diatoms and epifauna observed on Zostera marina. Congratulation to Kenji and co-authors.

https://www.jstage.jst.go.jp/article/pbr/16/3/16_B160306/_article/-char/en

 

Kenjiro Hinode, Hoshimi Kamisaki, Gregory N. Nishihara, Ryuta Terada 2021.

The phenology of epiphytic diatoms and epifauna observed on Zostera marina of Arikawa Bay, Nagasaki Prefecture, Japan.

Plankton and Benthos Research 16 (3): 179–190

DOI: 10.3800/pbr.16.179

Zostera marina

公開講座「発見！体感！本物の海藻を見てさわって食べて『海の森図鑑』をつくろう」を開催

　独立行政法人日本学術振興会ひらめき☆ときめきサイエンスKAKENHI事業（研究成果公開促進費）に採択された公開講座「発見！体感！本物の海藻を見てさわって食べて『海の森図鑑』をつくろう」（主催：大学院連合農学研究科，寺田竜太教授）が2021年7月24日（土）と31日（土）の2日間，鹿児島大学水産学部（下荒田キャンパス）で開催され，鹿児島県内の小学校5，6年生12名が参加しました。

 

調査研究で採取された様々な海藻類

 

　7月24日は，お話しや観察を通して海の中に「海藻の森」があることを学び，鹿児島大学の調査研究の中で採取された26種の海藻を用いて，押し葉標本を作成しました。また，海苔やコンブ，ワカメ，ヒジキなど，食べられる海藻の生きている姿を観察しました。

　7月31日は，一週間かけて乾燥させた押し葉を台紙にはり，ラベルをはって「学術標本」にしました。その後，できあがった標本をクリアーブックに入れて，世界でひとつだけ，自分だけの「海の森図鑑」を完成させました。また，水産学部の研究室や調査機器類の見学も行いました。

 

押し葉を台紙に貼り，ラベルを貼って学術標本にします

　この公開講座は，科学技術研究費（科研費）の研究成果還元事業として実施され，大学院連合農学研究科と水産学部の教職員で企画されました。昨年度は新型コロナウイルスの影響で開催を辞退したため，今年は2年ぶり9回目の開催になりました。開催に際しては，参加者を教室の収容定員の半分以下とし，マスク着用の上で間隔を広くとることで，対面での実習の基準を満たした上で実施しました。

 

過去10年間連続で採択されている本公開講座は，日本学術振興会からも高く評価されており，平成29年度には「ひらめき☆ときめきサイエンス推進賞」を授賞しました。また，よく練られた企画として，日本学術振興会のWeb Siteで過去2回，事例紹介されています。

 

https://www.kagoshima-u.ac.jp/topics/2017/08/29.html

Annual kelp survey

Prof Ryuta Terada (Marine Botany Lab) attended an annual survey for the long-term monitoring of kelp assemblages in Muroran, Hokkaido, Japan. It was conducted in collaboration with the Hokkaido University Muroran Marine Station and our lab.

Saccharina japonica

Study site

Alaria crassifolia

New article: The photosynthetic response of cultivated juvenile and mature Undaria pinnatifida (Laminariales) sporophytes to light and temperature

Introducing a new article featuring a brown alga, Undaria pinnatifida (wakame in Japanese). This study was conducted in collaboration with Riken Food Co., Ltd. (Miyagi Prefecture) and Nagasaki University.

Undaria pinnatifida

Sato, Nagoe, Nishihara, Terada 2021. The photosynthetic response of cultivated juvenile and mature Undaria pinnatifida (Laminariales) sporophytes to light and temperature.

Journal of Applied Phycology

DOI: 10.1007/s10811-021-02535-8

https://link.springer.com/article/10.1007/s10811-021-02535-8

New article: Phycocalidia tanegashimensis 2

Our 7th article in 2021 was out~ 

Gangping Xu, Ryuta Terada, Yuki Watanabe, Gregory N. Nishihara 2021. The occurrence of Phycocalidia tanegashimensis (Bangiaceae) in the splash zone may be related to the tolerance of photochemical efficiency to temperature, irradiance, desiccation, and salinity

Journal of Applied Phycology

DOI: 10.1007/s10811-021-02498-w

Phycocalidia tanegashimensis

https://link.springer.com/article/10.1007/s10811-021-02498-w

New article: Agarophyton vermiculophyllum

Our new article out~ 

Kameyama, Nishihara, Kawagoe, Terada 2021. The effects of four stressors, irradiance, temperature, desiccation, and salinity on the photosynthesis of a red alga, Agarophyton vermiculophyllum (Gracilariales) from a native distributional range in Japan. Journal of Applied Phycology 

DOI: 10.1007/s10811-021-02469-1 

https://link.springer.com/article/10.1007/s10811-021-02469-1 

Agarophyton vermiculophyllum

 

Tolerance of Agarophyton vermiculophyllum collected from its native range in Japan to relatively high irradiance, the broad range of temperatures, and osmotic stress may explain its potentially high invasive capacity.

New article: Neopyropia yezoensis f. narawaensis

Our new article was out from Algal Research (IF: 4.008).

Ryuta Terada, Gregory N. Nishihara, Kaname Arimura, Yuki Watanabe, Takayuki Mine, Tarou Morikawa 2021. Photosynthetic response of a cultivated red alga, Neopyropia yezoensis f. narawaensis (= Pyropia yezoensis f. narawaensis; Bangiales, Rhodophyta) to dehydration stress differs with between two heteromorphic life-history stages.

Algal Research 55: 102262 (1 April 2021)

DOI: 10.1016/j.algal.2021.102262

 

Neopyropia yezoensis f. narawaensis

https://www.sciencedirect.com/.../pii/S2211926421000813

New article: Caulerpa lentillifera

 Introducing our new article featuring the photosynthetic performance of a green alga Caulerpa lentillifera in response to three different stressors, temperature, irradiance, and desiccation.

Terada, Takaesu, Borlongan, Nishihara 2021. The photosynthetic performance of a cultivated Japanese green alga Caulerpa lentillifera in response to three different stressors, temperature, irradiance, and desiccation.

Journal of Applied Phycology 33:

DOI: 10.1007/s10811-021-02439-7

 

Caulerpa lentillifera

https://link.springer.com/article/10.1007/s10811-021-02439-7

A new species: Gracilariopsis mageshimensis from Mageshima, Kagoshima, Japan

 Please take a look at our new article featuring a new species of Gracilariopsis, Gp. mageshimensis from deep subtidal waters of Kagoshima, Japan.

Masahiro Suzuki, Ryuta Terada 2021. A new flattened species of Gracilariopsis (Gracilariales, Rhodophyta) from Japan.

Phycologia 60:

DOI: 10.1080/00318884.2021.1880755

 

Gracilariopsis mageshimensis

https://www.tandfonline.com/.../10.../00318884.2021.1880755

New article: Sargassum muticum

 In a new study out yesterday, a Ph.D. student Tomoiro Ito and co-authors revealed the effects of irradiance, temperature, and desiccation on the photosynthesis of a brown alga, Sargassum muticum (Fucales) from its native distributional range in Japan. The study appears in the Journal of Applied Phycology at the following link.

Tomohiro Ito, Iris Ann Borlongan, Gregory N. Nishihara, Hikaru Endo, Ryuta Terada 2021. The effects of irradiance, temperature, and desiccation on the photosynthesis of a brown alga, Sargassum muticum (Fucales), from a native distributional range in Japan. 

 

Journal of Applied Phycology 33:

DOI: 10.1007/s10811-021-02425-z

https://link.springer.com/article/10.1007/s10811-021-02425-z

 

Sargassum muticum

New article: Phycocalidia tanegashimensis

 Please take a look at our new article featuring a subtropical red alga, Phycocalidia tanegashimensis (Pyropia tanegashimensis).

Xu, Terada, Watanabe, Nishihara 2021.

Temperature characteristics on the growth and photosynthesis of a red alga, Phycocalidia tanegashimensis (Pyropia tanegashimensis, Bangiales) reveal adaptation to subtropical environments due to year-round occurrence of the macroscopic gametophyte. 

 

Journal of Applied Phycology 33:

DOI: 10.1007/s10811-021-02426-y

https://link.springer.com/article/10.1007/s10811-021-02426-y

 

Phycocalidia tanegashimensis

 

Cover photo

 Please take a look at the cover photos in the January issue of Phycological Research. These photos were taken in the field survey of the nationwide long-term monitoring survey "Monitoring Site 1000" and it's ten-year overview and future perspectives are reported by Terada et al. in this issue.

https://onlinelibrary.wiley.com/doi/10.1111/pre.12395

 

 

Annual contribution in 2020

This is an annual contribution of the 2020 Marine Botany Lab, Kagoshima University. I would like to express our gratitude to all of the students, colleagues, co-authors, and contributors.

A lot of bad things happened this year due to the virus pandemic. I am hoping next year will be better!

 

1. Iris Ann Borlongan, Sayuri Suzuki, Gregory N. Nishihara, Jumpei Kozono, Ryuta Terada 2020. Effects of light quality and temperature on the photosynthesis and pigment content of a subtidal edible red alga Meristotheca papulosa (Solieriaceae, Gigartinales) from Japan. Journal of Applied Phycology 32 (2): 1329–1340 DOI: 10.1007/s10811-020-02045-z (Online: 11 February 2020; Issue: April 2020)

 

2. Jumpei Kozono, Gregory N. Nishihara, Hikaru Endo, *Ryuta Terada 2020. Photosynthetic activity in two heteromorphic life-history stages of a freshwater red alga, Thorea gaudichaudii (Thoreales) from Japan, in response to an irradiance and temperature gradient. Phycological Research 68: DOI: 10.1111/pre.12416 (Online: 17 December 2019)

 

3. Hiroshi Kawai, Ryuta Terada, Takeaki Hanyuda 2020. Molecular phylogeny of Punctaria mageshimensis reveals evidence for its transfer to Spatoglossum as S. mageshimensis (Dictyotales, Phaeophyceae). Phycological Research 68: DOI:10.1111/pre.12417 (Online: 16 January 2020)

 

4. 井上幸男，大崎幸一，寺田竜太，Gregory N. Nishihara 2020．トゲモクSargassum micracanthum (Kützing) Endlicherの形状変化が光合成速度と栄養塩吸収速度に及ぼす影響．藻類68 (1): 1–8（2020年3月10日）Yukio Inoue, Koichi Osaki, Ryuta Terada, Gregory N. Nishihara 2020. Effects of seaweed deformation on photosynthesis rate and nutrient uptake rate. Japanese Journal of Phycology 68 (1): 1–8 (10 March 2020)

 

5. Ryuta Terada, Tomohiro Yuge, Yuki Watanabe, Takayuki Mine, Tarou Morikawa, Gregory N. Nishihara 2020. Chronic effects of three different stressors, irradiance, temperature, and desiccation on the PSII photochemical efficiency in the heteromorphic life-history stages of cultivated Pyropia yezoensis f. narawaensis (Bangiales) from Japan. Journal of Applied Phycology DOI: 10.1007/s10811-020-02152-x (Online: 3 June 2020)

 

6. Hikaru Endo, Yoichi Sato, Kenji Kaneko, Daisuke Takahashi, Kazue Nagasawa, Yutaka Okumura, Yukio Agatsuma 2020. Ocean warming combined with nutrient enrichment increases the risk of herbivory during cultivation of the marine macroalga Undaria Pinnatifida. ICES Journal of Marine Science DOI: 10.1093/icesjms/fsaa069 (Online: 4 June 2020)

 

7. Hiroshi Kawai, Takeaki Hanyuda, Ichiro Mine, Shinichi Takaichi, Ryuta Terada, Taiju Kitayama 2020. Morphology and molecular phylogeny of Umbraulva spp. (Ulvales, Ulvophyceae), and proposal of Ryuguphycus gen. nov. and R. kuaweuweu comb. nov. European Journal of Phycology DOI: 10.1080/09670262.2020.1753815 (Online: 16 June 2020)

 

8. Yoichi Sato, Jumpei Kozono, Gregory N. Nishihara, Ryuta Terada 2020. Effect of light and temperature on photosynthesis of a cultivated brown alga, Saccharina sculpera (Laminariales), from Japan. Phycologia 59: DOI:10.1080/00318884.2020.1777384 (Online: 2 July 2020)

 

9. Kenjiro Hinode, Peeraporn Punchai, Mako Saitsu, Gregory N. Nishihara, Yukio Inoue, Ryuta Terada 2020. The phenology of gross ecosystem production in a macroalga and seagrass canopy is driven by seasonal temperature. Phycological Research 68: DOI: 10.1111/pre.12433 (Online: 27 July 2020)

 

10. Yoichi Sato, Hikaru Endo, Hiroki Oikawa, Koichi Kanematsu, Hiroyuki Naka, Miho Mogamiya, Shigeyuki Kawano, Yusuke Kazama 2020. Sexual difference in the optimum environmental conditions for growth and maturation of the brown alga Undaria pinnatifida in the gametophyte stage. Genes 11 (8): 944 DOI: 10.3390/genes11080944 (Online: 16 August 2020)

 

11. Yukio Inoue, Rytua Terada, Dominic Franco C. Belleza, Gregory N. Nishihara. 2020. Effect of water velocity on the physiology of a collapsing Sargassum siliquastrum canopy under a controlled environment. Phycological Research 68: DOI: 10.1111/pre.12437 (Online: 25 August 2020)

 

12. Hikaru Endo, Eri Inomata, Xu Gao, Junji Kinoshita, Yoichi Sato, Yukio Agatsuma 2020. Heat stress promotes nitrogen accumulation in meristems via apical blade erosion in a brown macroalga with intercalary growth. Frontiers in Marine Science DOI: 10.3389/fmars.2020575721 (Online: 25 Sept 2020)

 

13. Iris Ann Borlongan, Ryo Arita, Gregory N. Nishihara, Ryuta Terada 2020. The effects of temperature and irradiance on the photosynthesis of two heteromorphic life history stages of Saccharina japonica (Laminariales) from Japan. Journal of Applied Phycology DOI: 10.1007/s10811-020-02266-2 (Online: 26 Oct 2020)

 

14. Iris Ann Borlongan, Ryuta Terada, Anicia Hurtado 2020. Concise review of the genus Meristotheca (Rhodophyta: Solieriaceae). Journal of Applied Phycology DOI: 10.1007/s10811-020-02288-w (Online: 27 Oct 2020) 

 

15. Masahiro Suzuki, Ryuta Terada, Kensuke Shibata, Hiroshi Kawai 2020. New records of Chondracanthus saundersii and Schottera koreana (Gigartinales, Rhodophyta) from Japan based on molecular and morphological analyses. Phycological Research DOI: 10.1111/pre.12447 (Online: 13 Nov 2020)

 

A new article: Ryuguphycus kuaweuweu

Introducing our new article describing a new deep subtidal green algal genus Ryuguphycus gen. nov. with a new record of Ryuguphycus kuaweuweu comb. nov. from Japan.

Hiroshi Kawai, Takeaki Hanyuda, Ichiro Mine, Shinichi Takaichi, Ryuta Terada, Taiju Kitayama 2020. Morphology and molecular phylogeny of Umbraulva spp. (Ulvales, Ulvophyceae), and proposal of Ryuguphycus gen. nov. and R. kuaweuweu comb. nov.

European Journal of Phycology

DOI: 10.1080/09670262.2020.1753815

https://www.tandfonline.com/.../10.../09670262.2020.1753815

A new article: Pyropia yezoensis f. narawaensis

 Please check out our new article revealing the chronic effect of irradiance, temperature, and desiccation on the PSII photochemical efficiency differs with two life-history stages in the heteromorphic life-history of Pyropia yezoensis f. narawaensis.

Terada, Yuge, Watanabe, Mine, Morikawa, Nishihara (2020)

Journal of Applied Phycology

DOI: 10.1007/s10811-020-02152-x

3 June 2020

https://link.springer.com/article/10.1007/s10811-020-02152-x

 

 

Pyropia yezoensis f. narawaensis

A new book: The Tokara Islands. Culture, Society, Industry and Nature.

 A new book was out!

Yasushi Ohtsuka, Ryuta Terada, Satoru Nishimura (eds.) 2020. The Tokara Islands. Culture, Society, Industry and Nature.

Kagoshima University Research Center for Island Studies (KUICIS). Hokuto Shobo Publishing, Tokyo. xii + 163 pages.

ISBN: 978-4-89290-054-9 (10 March 2020).

 

 

サガラメは日本固有種で新種Eisenia nipponica であるという内容の論文

褐藻アラメ属Eiseniaが数年前にカジメ属Eckloniaにまとめられましたが，サガラメの研究で再び独立した属として扱うことが提唱されました。
サガラメにはEisenia arboreaの名前が充てられてきましたが，北米のEisenia arboreaとは異なることが明らかになり，新種Eisenia nipponicaが記載されました。サガラメは静岡県御前崎から紀伊半島に生育する固有種ということになります。

Kawai, Akita, Hashimoto, Hanyuda (2020) A multigene molecular phylogeny of Eisenia reveals evidence for a new species, Eisenia nipponica (Laminariales), from Japan. Eur J Phycol
https://doi.org/10.1080/09670262.2019.1692911

New article: Meristotheca papulosa トサカノリは緑色光や青色光だけでも十分に光合成が可能で、緑色光を当て続けると赤みが増す論文

Our new article out from the Journal of Applied Phycology.
Despite the absence of red light that is essential to the photosynthesis by chlorophyll-a, a deep subtidal red alga Meristotheca papulosa can photosynthesize effectively by using the green light that penetrates into the subtidal water. Under the blue and green light exposures for 7-day culture, a phycobilisome, phycoerythrin (PE) concentration of the alga increased, suggesting improved reddish-color the alga.

Borlongan, Suzuki, Nishihara, Kozono, Terada 2020. Effects of light quality and temperature on the photosynthesis and pigment content of a subtidal edible red alga Meristotheca papulosa (Solieriaceae, Gigartinales) from Japan. Journal of Applied Phycology 32: DOI: 10.1007/s10811-020-02045-z

https://link.springer.com/arti…/10.1007%2Fs10811-020-02045-z

Meristotheca papulosa

New artcile: Virescentia helminthosa and Sheathia arcuata from Japan アオカワモズクとチャイロカワモズクの光合成に関する論文

A new article on the photosynthetic performance of two freshwater red algae, Virescentia helminthosa and Sheathia arcuata from Japan was out.
Journal of Applied Phycology

Kozono, J., Nishihara, G. N., Endo, H., Terada, R. 2020. The temperature and light responses on the photosynthesis of two freshwater red algae, Virescentia helminthosa and Sheathia arcuata (Batrachospermaceae) from Japan. Journal of Applied Phycology 
DOI: 10.1007/s10811-019-01967-7 

https://link.springer.com/article/10.1007/s10811-019-01967-7 

Virescentia helminthosa

 

Sheathia arcuata

New article: Thorea gaudichaudii シマチスジノリの異形世代交代の生活史における大型世代と小型世代の光合成活性

Please check out our new article revealing the photosynthetic activity in two heteromorphic life-history stages of a freshwater red alga, Thorea gaudichaudii from Japan.
Kozono et al. 2019
Phycological Research
DOI: 10.1111/pre.12416

https://onlinelibrary.wiley.com/doi/full/10.1111/pre.12416

New article: Monitoring Stes 1000: Ten‐year overview and future perspectives 環境省モニタリングサイト1000沿岸域藻場モニタリング：10年間の成果と展望

Please check out our new article revealing the long-term shift of seaweed communities including the gap dynamics, influence of the climate change, and the tsunami disaster in 2011. It is the result of ten years of monitoring, and my sincere thanks to the total of 468 contributors for their active involvement and support during the survey.

Terada, R., Abe, M., Abe, T., Aoki, M., Dazai, A., Endo, H., Kamiya, M., Kawai, H., Kurashima, A., Motomura, T., Murase, N., Sakanishi, Y., Shimabukuro, H., Tanaka, J., Yoshida, G., Aoki, M. 2019 Japan's nationwide long‐term monitoring survey of seaweed communities known as the “Monitoring Sites 1000”: Ten‐year overview and future perspectives.

Phycological Research https://doi.org/10.1111/pre.12395

Ecklonia kurome

New article: Sargassum macrocarpum ノコギリモクの光合成と温度・光阻害の論文

A new paper was out: Sargassum macrocarpum
Feature article:
Terada, Nakashima, Borlongan, Shimabukuro, Kozono, Endo, Shimada, Nishihara 2019. Photosynthetic activity including the thermal- and chilling-light sensitivities of a temperate Japanese brown alga Sargassum macrocarpum. Phycological Research DOI: 10.1111/pre.12398

https://onlinelibrary.wiley.com/doi/full/10.1111/pre.12398

Sargassum macrocarpum

New article: Saccharina angustata ミツイシコンブの光合成に関する論文

Please check out our new article revealing the photosynthetic performance of a brown edible alga, Saccharina angustata from Japan.

Borlongan, Maeno, Kozono, Endo, Shimada, Nishihara, Terada 2019. Photosynthetic performance of Saccharina angustata (Laminariales, Phaeophyceae) at the southern boundary of distribution in Japan. Phycologia 58: DOI: 10.1080/00318884.2019.1571355
https://doi.org/10.1080/00318884.2019.1571355

Saccharina angustata