Published Papers - Yamashiro Hideyuki

Geographic distribution of a gall-inducing copepod Allopodion ryukyuensis on Montipora corals along Ryukyu Archipelago, Japan, and Green Island, Taiwan.

Hideyuki Yamashiro

Galaxea, JCRS   24   2022 [ Peer Review Accepted ]

Type of publication: Research paper (scientific journal)

Prevalence, complete genome, and metabolic potentials of a phylogenetically novel cyanobacterial symbiont in the coral-killing sponge, Terpios hoshinota

Chen Y-H et al, H. Yamashiro, author

Environmental Microbiology (accepted)     2022 [ Peer Review Accepted ]

Type of publication: Research paper (other science council materials etc.)

Spatial and cross-seasonal patterns of coral diseases in reefs of Taiwan: high prevalence and regional variation.

Huang CY, Hwang JS, Yamashiro H, Tang SL

Diseases of aquatic organisms ( Inter-Research Science Center )  146   145 - 156   2021.10 [ Peer Review Accepted ]

Type of publication: Research paper (scientific journal)

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Although research on coral diseases is increasing worldwide, it remains limited in Taiwan. Taiwan is located at the Tropic of Cancer and contains both tropical and subtropical reefs. We conducted spatial and cross-seasonal surveys in Taiwan in 2018 and identified 7 types of disease and nondisease lesions and 6 potential factors influencing coral health. The overall mean prevalence of disease and nondisease lesions varied considerably across the reef regions, and host susceptibility differed among the coral taxa. The overall mean prevalence of disease and nondisease lesions was highest in Kenting (mean ± SEM: 8.58 ± 1.81%) and lowest on the Southern Islands (2.12 ± 0.73%). Although the prevalence of diseases did not differ significantly between the seasons, cyanobacteria-related diseases—including black band disease (BBD), BBD-like syndrome, and other cyanobacterial syndromes—were slightly more prevalent in autumn than in spring. Furthermore, 3 of the potential factors influencing coral health (i.e. turf algae, bioeroding sponges, and coral bleaching) were strong predictors of disease and nondisease lesion prevalence. These results advance our understanding of coral disease ecology in Taiwan and highlight the need for further research on the correlations between diseases, hosts, and environment.

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Snails associated with the coral-killing sponge Terpios hoshinota in Okinawa Island, Japan

Yamashiro H, Fukumori H, Aini SN, Hirose Y

Scientific Reports   11   20709   2021.10 [ Peer Review Accepted ]

Type of publication: Research paper (other science council materials etc.)

Specific Detection of Coral-Associated Ruegeria, a Potential Probiotic Bacterium, in Corals and Subtropical Seawater.

Kitamura R, Miura N, Ito M, Takagi T, Yamashiro H, Nishikawa Y, Nishimura Y, Kobayashi K, Kataoka M

Marine biotechnology (New York, N.Y.) ( Marine Biotechnology )  23 ( 4 ) 576 - 589   2021.08 [ Peer Review Accepted ]

Type of publication: Research paper (scientific journal)

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Monthly progression rates of the coral-killing sponge Terpios hoshinota in Sesoko Island, Okinawa, Japan

Aini S.N.

Coral Reefs ( Coral Reefs )  40 ( 3 ) 973 - 981   2021.06 [ Peer Review Accepted ]

Type of publication: Research paper (scientific journal)

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Contact reactions between individuals of the coral-killing sponge, Terpios hoshinota

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Zoological Studies   60   41   2021.05 [ Peer Review Accepted ]

Type of publication: Research paper (scientific journal)

Effects of Ocean Acidification on Coral Endolithic Bacterial Communities in Isopora palifera and Porites lobata

Yang S.Y.

Frontiers in Marine Science ( Frontiers in Marine Science )  7   2020.12 [ Peer Review Accepted ]

Type of publication: Research paper (scientific journal)

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Endolithic microbes in coral reefs may act as a nutrient source for their coral hosts. Increasing atmospheric CO₂ concentrations are causing ocean acidification (OA), which may affect marine organisms and ecosystems, especially calcifying organisms such as reef-building corals. However, knowledge of how OA affects marine microbes remains limited, and little research has been done on how coral endolithic communities respond to shifting environmental baselines. In this study, the endolithic communities of two common shallow water coral species, <italic>Isopora palifera</italic> and <italic>Porites lobata</italic>, were examined to investigate the microbial community dynamics under OA treatments. The colonies were placed in an environment with a partial pressure of carbon dioxide (<italic>p</italic>CO₂) of 1,000 or 400 ppm (control) for 2 months. Several <italic>I. palifera</italic> colonies bleached and died at 1,000 ppm <italic>p</italic>CO₂, but the <italic>P. lobata</italic> colonies remained unaffected. Inversely, the endolithic community in <italic>P. lobata</italic> skeletons showed significant changes after OA treatment, whereas no significant dynamics were observed among the <italic>I. palifera</italic> endoliths. Our findings suggest that the skeletal structures of different coral species may play a key role in corals host and endoliths under future high-OA scenarios.

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Metagenomic, phylogenetic, and functional characterization of predominant endolithic green sulfur bacteria in the coral Isopora palifera.

Yang SH, Tandon K, Lu CY, Wada N, Shih CJ, Hsiao SS, Jane WN, Lee TC, Yang CM, Liu CT, Denis V, Wu YT, Wang LT, Huang L, Lee DC, Wu YW, Yamashiro H, Tang SL

Microbiome ( Microbiome )  7 ( 1 ) 3   2019.01 [ Peer Review Accepted ]

Type of publication: Research paper (scientific journal)

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Usage of UV-curable oligomer-based adhesive agent in hermatypic coral experimental research.

Takeuchi I, Yamashiro H, Gushi M

MethodsX ( MethodsX )  6   1600 - 1607   2019 [ Peer Review Accepted ]

Type of publication: Research paper (scientific journal)

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Continuous recordings of the coral bleaching process on Sesoko Island, Okinawa, Japan, over about 50 days using an underwater camera equipped with a lens wiper.

Nishiguchi S, Wada N, Yamashiro H, Ishibashi H, Takeuchi I

Marine pollution bulletin ( Marine Pollution Bulletin )  131 ( Pt A ) 422 - 427   2018.06 [ Peer Review Accepted ]

Type of publication: Research paper (scientific journal)

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琉球列島で採集されたアマクサクラゲ

戸篠祥, 山城秀之, 谷本都

Fauna Ryukyuana   43   19 - 25   2018.06 [ Peer Review Accepted ]

Type of publication: Research paper (scientific journal)

Appearance of black band-like disease at upper mesophotic depths after coral bleaching

山城秀之

Dis Aqua Org     2018 [ Peer Review Accepted ]

Type of publication: Research paper (scientific journal)

Journal publication of the Japanese Coral Reef Society: Past, present and future

FUJITA Kazuhiko, HARII Saki, HIDAKA Michio, YAMASHIRO Hideyuki

Journal of the Japanese Coral Reef Society ( The Japanese Coral Reef Society )  20 ( 1 ) 89 - 97   2018 [ Peer Review Accepted ]

Type of publication: Research paper (scientific journal)

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Large Porites microatoll found by aerial survey at Sesoko Island, Okinawa, Japan

Ichiro Takeuchi, Hideyuki Yamashiro

CORAL REEFS ( SPRINGER )  36 ( 4 ) 1317 - 1317   2017.12 [ Peer Review Accepted ]

Type of publication: Research paper (scientific journal)

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Montipora digitata Exoskeleton derived aragonite particles are useful scaffold for tissue-engineered vascular graft in vitro

山城秀之

Nano Biomedicine ( National Institute of Informatics )  9 ( 2 ) 101 - 111   2017.12 [ Peer Review Accepted ]

Type of publication: Research paper (scientific journal)

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Designing a preoperative tissue engineering vascular graft (TEVG) that is immunologically compatible with the host is one of the goals of vascular tissue engineering. Angiogenesis is an important early step in wound healing, and the three-dimensional formation of capillaries using scaffold contributes greatly to the success of bone regeneration therapy. In this study, aragonite particles derived from exoskeleton of Montipora digitata (a kind of hard coral) as a scaffold of TEVG were applied to three-dimensional culture of normal human dermal skin fibroblasts and normal human umbilical cord vein endothelial cells, and the effect was observed morphologically. As a result, the particles promoted cell proliferation and capillary differentiation three-dimensionally in vitro. Also, incorporation of calcium from the aragonite particles into co-cultured normal human dermal skin fibroblasts and normal human umbilical vein endothelial cells was observed. Thus, aragonite particles were inferred to be a useful scaffold for 3 dimensional capillary culture.

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Outbreak of white syndrome in Acropora spp., temperate region of Japan

Yamashiro H.

Marine Biodiversity ( Marine Biodiversity )  46 ( 2 ) 321 - 322   2016.06 [ Peer Review Accepted ]

Type of publication: Research paper (scientific journal)

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Coral Lipids, Its Character and Role

YAMASHIRO Hideyuki

Oleoscience ( Japan Oil Chemists' Society )  16 ( 1 ) 21 - 24   2016 [ Peer Review Accepted ]

Type of publication: Research paper (scientific journal)

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<p>Corals having unicellular algae (zooxanthellae) grow faster with the aid of symbiotic zooxanthellae living within their animal cells. Wax esters and triacylglycerol function as a storage lipids in coral. Roughly coral soft tissues contain 30% lipids in dried weight. Recent higher water temperature due to global warming causes loss of symbiotic algae from the host coral (we call as coral bleaching), and then coral itself consume storage lipids. Similarly, loss of storage lipids has been observed in diseased (skeletal anomalies, or tumor) coral tissue. These suggest that storage lipids have an important role to regulate coral homeostasis and assume environment condition of coral reefs.</p>

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Study of Wireless Sensor Node Functions with Attached Algae Removal Ability for Under-water Monitoring Sensor Network

Ikeda Kohei, Suzuki Tsuyoshi, Sawai Kei, Yamashiro Hideyuki, Motohashi Mitsuya, Takemura Fumiaki, Kawabata Kuniaki

The Abstracts of the international conference on advanced mechatronics : toward evolutionary fusion of IT and mechatronics : ICAM ( 一般社団法人 日本機械学会 )  2015 ( 0 ) 144 - 145   2015 [ Peer Review Accepted ]

Type of publication: Research paper (scientific journal)

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This article discusses functions of a stationary underwater sensor node (S-USN) with attached algae removal ability for constructing underwater monitoring sensor network (UMSN) that is used to support coral ecological system survey activities. The experiments of attached algae growth was conducted in Okinawa coast. Based on knowledge obtained by the experiments and coral researcher's advice, container surface wiping function was implemented to S-USN.

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Development of an Acetic Acid Injection Device for Crown-of-Thorns Starfish Controlled by a Remotely Operated Underwater Robot

Takemura Fumiaki, Kobashigawa Shuta, Hirayama Keita, Kawabata Kuniaki, Sagara Shinichi, Yamashiro Hideyuki, Kuraya Eisuke

Journal of Robotics and Mechatronics ( 富士技術出版株式会社 )  27 ( 5 ) 571 - 578   2015 [ Peer Review Accepted ]

Type of publication: Research paper (scientific journal)

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<p>We have been studying and developing an underwater robot for coral reef conservation. This paper describes the development of an acetic acid injection device mounted on an underwater robot for use in exterminating crown-of-thorns starfish that damage corals. First, we outlined the ecology and morphology of the crown-of-thorns starfish to identify requirements for the acetic acid injection device. Based on the requirements identified, we designed and prototyped an acetic acid injection device to be installed on an underwater robot. Next, we installed the developed injection device on a remotely operated vehicle and injected acetic acid into crown-of-thorns starfish under water. We describe the effectiveness of this acetic acid injection device for exterminating crown-of-thorns starfish. The experimental results prove that the developed acetic acid injection device can inject acetic acid into crown-of-thorns starfish just as intended, and that an underwater robot installed with such device can be used effectively to aid in the extermination of crown-of-thorns starfish.</p>

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Dangling polyp from <i>Tubastraea</i> during low tide

YAMASHIRO Hideyuki

Galaxea, Journal of Coral Reef Studies ( 日本サンゴ礁学会 )  17 ( 1 ) 17 - 18   2015 [ Peer Review Accepted ]

Type of publication: Research paper (scientific journal)

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2A1-C07 Sea basic experiment of underwater robot to inject acetic acid into crown-of-thorns starfish

KOBASHIGAWA Shuta, HIRAYAMA Keita, MIYAGI Sho, TAKEMURA Fumiaki, KAWABATA Kuniaki, SAGARA Shinichi, YAMASHIRO Hideyuki, KURAYA Eisuke, KIMURA Tetsuya

The Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec) ( The Japan Society of Mechanical Engineers )  2015 ( 0 ) _2A1 - C07_1-_2A1-C07_2   2015 [ Peer Review Accepted ]

Type of publication: Research paper (scientific journal)

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Coral has important value. In recent year, coral of the important value is damaged. This laboratory has developed an underwater robot. This research, underwater root to clean the crown-of-thorns starfish. Underwater robot is mounted acetic acid syringe to perform the removal of starfish. The end effector experiment in the pool and the sea. Object of the sea experiment use the crown-of-thorns starfish. Underwater robot was able to be injection into the crown-of-thorns starfish at the sea experiment. Crown-of-thorns starfish became only a bone and the needle 11 days later. Therefore, underwater robot can be the acetic acid injection in the sea.

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Volcanic ashfall preserved in the skeleton of Acropora

Yamashiro, H. and H. Fukami

Galaxea ( JCRS )  14   1 - 2   2012 [ Peer Review Accepted ]

Type of publication: Research paper (scientific journal)

Skeletal structure and progression of growth anomalies in Porites australiensis in Okinawa, Japan.

Yasuda N., Y. Nakano, H. Yamashiro and M. Hidaka

Diseases of Aquatic Organisms ( Inter Research )  12   237 - 247   2012 [ Peer Review Accepted ]

Type of publication: Research paper (scientific journal)

Localized outbreak of attached diatoms on the coral Montipora due to low-temperature stress

Yamashiro, H., Y. Mikame and H. Suzuki

Scientific Reports ( nature publisher )  2   522 - 525   2012 [ Peer Review Accepted ]

Type of publication: Research paper (scientific journal)

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White spot syndrome of Turbinaria peltata in the temperate region of Japan. , 28: 893

Yamashiro, H. and M. Fukuda

Coral Reefs ( Springer Verlag )  28   893   2009 [ Peer Review Accepted ]

Type of publication: Research paper (scientific journal)

Two species of cyclopoid copepods (Crustacea) inhabiting galls on scleractinian corals in Okinawa, Japan. Journal of Crustacean Biology, 27: .

Kim, Il-Hoi and H. Yamashiro

J. of Crustacean Biology ( Brill )  27   319 - 326   2007 [ Peer Review Accepted ]

Type of publication: Research paper (scientific journal)

Effect of bleaching on lipid content and composition of Okinawan corals.

Yamashiro, H. Oku and K. Onaga

Fisheries Science ( Nippon Suisann Gakkai )  71   448 - 453   2005 [ Peer Review Accepted ]

Type of publication: Research paper (scientific journal)

In vitro steroidogenesis of the gonads of the protogynous Pacific wrasse, Halichoeres trimaculatus.

Leatherland, J.F., J. Ogasawara, M.S. Rahman, R. Renaud, H. Yamashiro and A. Takemura. 2003., 62: .

Journal of Fish Biology ( Wiley )  62   1414 - 1434   2003 [ Peer Review Accepted ]

Type of publication: Research paper (scientific journal)

Seasonal changes in the content and composition of lipids in the coral Goniastrea aspera. Coral Reefs, 22: 83-85

Oku, H., H. Yamashiro, K. Onaga, K. Sakai and H. Iwasaki

Coral Reefs ( Springer Verlag )  22   83 - 85   2003 [ Peer Review Accepted ]

Type of publication: Research paper (scientific journal)

Lipid biosynthesis from [14C]-glucose in the coral Montipora digitata.

Oku, H., H. Yamashiro and K. Onaga

Fisheries Science ( Nippon Suisann Gakkai )  69   625 - 631   2003 [ Peer Review Accepted ]

Type of publication: Research paper (scientific journal)

Lipid distribution in branching coral Montipora digitata. Fisheries Science, 68:.

Oku, H., H. Yamashiro, K. Onaga, H. Iwasaki and K. Takara

Fisheries Science ( Nippon Suisann Gakkai )  68   517 - 522   2002 [ Peer Review Accepted ]

Type of publication: Research paper (scientific journal)

Properties of tunic acid in the ascidian Phallusia nigra (Ascidiidae, Phelebobranchia).

Hirose, E., H. Yamashiro and Y. Mori

Zoological Science ( Zoological Society of Japan )  18   309 - 314   2001 [ Peer Review Accepted ]

Type of publication: Research paper (scientific journal)

Coral tumors store reduced level of lipids.

Yamashiro, H., H. Oku, K. Onaga, H. Iwasaki and K. Takara

Journal of Experimental Marine Biology and Ecology ( Elsevier )  265   171 - 179   2001 [ Peer Review Accepted ]

Type of publication: Research paper (scientific journal)

Variation and plasticity of skeletal color in the zebra coral Oulastrea crispata.

Yamashiro, H

Zoological Science ( Zoological Society of Japan )  17   827 - 831   2000 [ Peer Review Accepted ]

Type of publication: Research paper (scientific journal)

Tumor formation on the coral Montipora informis.

Yamashiro, H., M. Yamamoto and R. Van Woesik

Diseases of Aquatic Organisms ( Inter Research )  41   211 - 217   2000 [ Peer Review Accepted ]

Type of publication: Research paper (scientific journal)

Composition of lipids, fatty acids and sterols in Okinawan corals. Comparative Biochemistry and Physiology, Part B, 122: 397-407.

Yamashiro, H., H. Oku, H. Higa, I. Chinen and K. Sakai.

Comparative Biochemistry and Physiology, Part B ( Elsevier )  122   397 - 407   1999 [ Peer Review Accepted ]

Type of publication: Research paper (scientific journal)