AGRICULTURE &

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Yanagawa SANDBOX Terayama Yanagawa, Shimoie Yamashita, Kamiya, Hayashi Nakao Tomarino, Tomarino Watanabe, Natori Kanemoto, Nakashima, Matsubara , Hayashi Ishitani, Kadota Hirata Yanagawa, Nakanura ●General Affairs Bureau of ／ ●Luce Search Co.,Ltd.／ ●The University of Tokyo／ ●Sharp Corporation／ ● City, Hiroshima／ ●Fisheries Cooperative of Nomi／ ●Hirata Suisan／ ●Sessile Research Corporation／ ●The Chugoku Electric Power Company, Incorporated／ ●NTT DOCOMO, INC.／ ●Hiroshima Pref. Fisheries & Marine Technology Center／ the Combined Power of Hiroshima Sandbox — However, other members of the group stepped up to help solve these problems. When they figured out how to apply the stepped up to help solve these problems. When they figured out how to apply However, other members of the group To ensure a successful spat collection, farmers and researchers need to recognize the environmental conditions for conditions environmental the recognize to need researchers and farmers collection, spat successful a ensure To A Failed First Attempt Bears New Fruit Attempt Bears New A Failed First Technology vs. Nature Team Work spawning and be ready for spawning when it occurs, all while predicting tidal currents and where they will carry the larvae. larvae. the carry will they where and currents tidal predicting while all occurs, it when spawning for ready be and spawning will need to rely larvae the that time of and the duration plankton, food source, is the to take into consideration Another factor to each new passed down generations of knowhow by instinct, has mainly been conducted now this method on it. Until the film capture and to aid in cameras, drone such as new technology, is introducing project However, this successor. to survey and collect and a solar sensor nord will be released areas. In addition to this, ICT buoys prediction of fertilization process. The project will will make for a much more efficient temperature and salinity. These changes data about water bb analyze data and set up then use AI and machine learning to wide area) wireless technology and use LPWA (low power, sharing to aid in will be utilized to help with real time information new information. Further applications farming based on the new oysters. the process of cultivating participating in another Professor Nakao, who had been this product was initially a total coincidence. The conception of an offhand comment Kakuta from Sharp. When Nakao made just happened to be introduced to Nishiki project at the time, with filled place a also was it Nakao, Professor For Etajima. from was he that mentioned Kakuta sensor, underwater his about there, an idea was born. and exploring the island. From where he spent the summer with his grandfather childhood memories, of island, had many connections there, one of those being the fisheries cooperative Kakuta,who spent his childhood on the ended made their first proposal to Hiroshima Sandbox. However, their first attempt Nomi. As discussions progressed, the pair had the technology, then that time saying, "At that time we thought that if we just in failure. Professor Nakao reflected on farms. oyster its and Etajima surrounding situation entire the grasp really couldn't We anything. fix to possible was it time more invested we've there From itself. issue the but first, technology wasn't it that realized we when That's Hirata, from Hirata Suisan, popped up. After some research, the name Yasushi learning about the process of farming." in his for a fisheries research lab before starting his own oyster farming business Hirata used to be a researcher working With proposal he soon agreed, and offered up his oyster rafts as a test site location. hometown of Etajima. After hearing the their second project proposal. his support the group was able to pass Nakao was smooth sailing. The sensors that had been developed by Professor Even after gaining approval, not everything the but on, later retrieved be to able was sensor The raft. the of frame broken the with together storm a in away washed got the smart technology would have to face in order to be successful. team realized the harsh conditions that himself network), Yoshihiro Shimoie from Fisheries Cooperative of Nomi took it upon LoRa (long range, low power, wide area At carrying a machine. After these efforts the whole town offered their support. to drive around the bay for hours and hours lives in Tokyo but "not anymore," says the professor. Even though Nakao first walking on the rafts was a difficult challenge, is they still have a strong connection and are in constant contact as to what and is separated from much of the team, happening, building an unbreakable trust. There are many theories about why the rate of larvae collecting is decreasing. One example is that rain and dam discharge are having a negative impact on the amount of phytoplankton and the salinity of the water. "We conduct field tests to make sure if a hypothesis is true. There are problems that Hiroshima Sandbox can solve, problems that we can’t and Etajima can’t. We plan to take our first steps out of Etajima and farming oyster whole the to available technology our make industry in Hiroshima, improving the future of a critical Hiroshima industry." They are planning to collaborate with Center, Technology & Marine Fisheries Pref. FEIS, Hiroshima Hiroshima City Agriculture, Forestry and Fisheries Promotion Center as well as Etajima city and fisheries cooperatives. image photo Oyster rafts of Hirata Suisan The University of Tokyo The University The IoT Platform for Smart Oyster Farming Smart Oyster Platform for The IoT

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However, this once ever present scenery is starting to change. Oyster farming requires farmers to collect the fertilized egg However, this once ever present scenery is starting to change. Oyster farming requires field tests. This project's group consists To help reverse these statistics, a team has been put together to conduct several

Hiroshima has the highest oyster production in . In oyster farming, collecting oyster larvae is essential. However, oyster farming, collecting oyster larvae highest oyster production in Japan. In Hiroshima has the severe is this situation, which To solve destabilizing the industry. decreasing, has been rate of larvae collection the environmental data was established to collect detailed the health of the local economy, a project enough to threaten of AI analysis and machine the aid with various IoT technologies. With waters the oyster hatchery the state of about hard data instead of the method that is supported by to establish a new smart oyster farming learning, they aim traditional fisherman’s instinct.

Link Etajima Together Link Etajima Smart Fisheries with the Latest Technology the Latest Technology with Smart Fisheries Saving Oysters Farmers with IoT larvae from adult oysters and then transfer them to scallop shells where they can grow. Despite this dedication, spat collection larvae from adult oysters and then transfer them to scallop shells where they can collection rates With whole. a as industry the on effect huge a had 2014, which in low time all an hit and unstable very is yen. billion 2.5 than more of loss a incurred spat, and purchase to districts other turn to had to farmers dropping, continuously are elderly, and cannot keep up with this Furthermore, such conditions are leading to a loss of farmers, many of whom their doors. The number of oyster farmers instability. In the seven years between 2006 to 2013, 26.6% of farms have closed is still decreasing. NTT Sharp; Tokyo University; Studies at Information Interdisciplinary of School Graduate at the professor a Nakao, Akihiro of Etajima City and the fisheries cooperative of docomo; Chugoku Electric Power; Luce Search; Sessile Research Corporation; with testing, which will be conducted at Hirata Nomi. The Hiroshima Prefectural Technology Research Institute will also help Suisan. years it has made headlines for its beautiful Etajima is a beautiful city located on the islands that line . In recent Etajima. in force driving economic main the are that oysters is it However, policies. immigration and festivals, views, scenic close as a of Kure in the lead and the city with Etajima 95000 tons a year, The prefecture of Hiroshima produces more than The view of numerous oyster culturing second. Both of these cities combined make up 30% of Japan's total oyster production. rafts swaying in the waves is a typical sight in Hiroshima. HIROSHIMA SANDBOX 07