Fiscal Year
2017
Title
Development of aquaculture management methods using environmental information
Project and Theme
Project 1. Study on ecological succession of fisheries ground
Representative Organization: Tohoku University
Theme2. Towards sustainable fisheries reconstruction along the shores of Miyagi Prefecture| Representative person | Makoto Osada |
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| Organization | Tohoku University |
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| Department | Graduate School of Agricultural Science |
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Theme2. Towards sustainable fisheries reconstruction along the shores of Miyagi Prefecture| Representative person | Motoyuki Hara |
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| Organization | Tohoku University |
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| Department | Graduate School of Agricultural Science |
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Research InformationPeriod and Interval2017/04/01 - 2018/03/31
Every month
Research Area
Nagatsuraura, Oppa Bay and Samenoura Bay in Miyagi Prefecture
CategoryField survey
OverviewA monitoring investigation on the quality of the water (nutrient salt, chlorophyll-a, planktons) and the bottom mud investigation (TOC, TN, COD, AVS) are planned in Nagatsuraura, Oppa bay and Samenoura bay of Miyagi Prefecture.
Overview of the Observation
Research Point Table
| Point | | Name | Nagatsuraura |
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| Coordinates | 38.550286,141.462725 |
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Results and Future PlanA pattern figure of water quality pattern using the data of the sea-water environment monitoring from April, 2017 to March, 2018 was made. A dysoxic water mass was confirmed in the summer. I made distribution maps such as TOC, TN, COD, AVS by quality of bottom analysis. The currents and the speed of water in Nagatsuraura were cleared, and it was estimated to take from 8 to 25 days to exchange the overall water. In the examination of the appropriate accommodation density of culture oyster, bait was not short with the present mean estimated accommodation quantity by the test calculation from quantity of water temperature and chlorophyll a. A continued quality of the water monitoring of the Gulf of Samenoura Bay (closed sea area) was continued and accumulated quality of the water (water temperature, salt, quantity of chlorophyll) data.
Reference
Person in charge of Investigation
| Representative person | Motoyuki Hara |
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| Organization | Tohoku University |
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| Department | Graduate School of Agricultural Science |
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| Fiscal Year | 2017 |
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| Organization | Tohoku University |
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| Category | Field survey |
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| Research Area | South Sanriku |
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| Discipline | Ocean physics -> Water temperature
Ocean physics -> Salinity
Ocean physics -> Ocean current / Tidal current (Current direction/Current speed)
Ocean chemistry -> Salinity
Ocean chemistry -> Dissolved oxygen
Ocean chemistry -> Nutrients
Ocean environment -> Chemical oxygen demand (COD)
Ocean environment -> Nutrients
Ocean environment -> Plant pigments
Ocean environment -> Sediment
Ocean environment -> Creature
Ocean biology / Ocean ecology -> Ecology
Ocean biology / Ocean ecology -> Others
Marine meteorology -> Weather
Marine meteorology -> Atmospheric pressure
Marine meteorology -> Sea surface temperature
Marine meteorology -> Amount and period of precipitation
Topography / Geology / Geophysics -> Bathymetry
Topography / Geology / Geophysics -> Topography
Topography / Geology / Geophysics -> Bottom sediment
Topography / Geology / Geophysics -> Marine sediments
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