Monitoring data

Below is a list of monitoring data at Lake Kasumigaura.

  • Please read the Terms of Use before using monitoring data.
  • Bacteria, protozoa, picophytoplankton, phytoplankton, primary production and zooplankton data were published in Ecological Research Data Papers (please refer to the notes in the Excel file).
  • Fish density data is also available at GBIF and the JaLTER database under a CC BY 4.0 license.
Category Data item Data period (fiscal year) Data table Last date observed Data Metadata Methods
Weather Hourly data
Daily data
1991-Present Weather Database, Kasumigaura Water Research Station (in Japanese)
* Open in a new window
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PDF
(18KB)
Water qualityMonitoring data by depth 2013-2017 Water quality monitoring data by depth 2018-03-12
ZIP
(311KB)
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Water qualitySurvey data 1
(nutrients)
1977-2021 Table 2-1 nutrients (wide-format) 2022-03-09
Excel
(488KB)
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PDF
(18KB)
Water qualitySurvey data 1
(nutrients)
1977-2021 Table 2-1-2 nutrients (long-format) 2022-03-09
ZIP
(262KB)
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PDF
(18KB)
Water qualitySurvey data 2
(In-situ data)
1977-2021 Table 3-1 In-situ data (wide-format) 2022-03-09
Excel
(1.3MB)
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PDF
(22KB)
Water qualitySurvey data 2
(In-situ data)
1977-2021 Table 3-1-2 In-situ data (long-format) 2022-03-09
ZIP
(431KB)
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PDF
(22KB)
Water qualitySurvey data 3
(other variables)
1977-2021 Table 4-1 other variables (wide-format) 2022-03-09
Excel
(722KB)
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PDF
(78KB)
Water qualitySurvey data 3
(other variables)
1977-2021 Table 4-1-2 other variables (long-format) 2022-03-09
ZIP
(290KB)
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PDF
(78KB)
Water qualitySurvey data 3
(other variables)
1988-1996 Table 4-2 DOC 1996-12-11
Excel
(39KB)
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PDF
(78KB)
Water qualityMethane 1990-1996 Table 5-1 Methane 1996-03-06
Excel
(56KB)
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PDF
(17KB)
Water qualityHeavy metals 1989-2008 Table 6-1 Heavy Metals (Fe) 2008-12-10
Excel
(52KB)
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PDF
(73KB)
Water qualityHeavy metals1989-2008 Table 6-2 Heavy Metals (Cu) 2008-12-10
Excel
(51KB)
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PDF
(73KB)
Water qualityHeavy metals1980-2012 Table 6-3 ICP 2012-12-12
Excel
(734KB)
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PDF
(73KB)
Water qualityBottom sediments 1983-1990 Table 7-1 Water content 1990-04-11
Excel
(75KB)
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PDF
(16KB)
Water qualityBottom sediments 1983-1990 Table 7-2 Heat reduction 1990-04-11
Excel
(95KB)
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PDF
(16KB)
Water qualityBottom sediments 1983-1990 Table 7-3 Specific gravity 1990-04-11
Excel
(89KB)
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PDF
(16KB)
Biological data Bacteria 1977-1993 Table 8-1 Bacteria density 1993-04-07
Excel
(93KB)
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PDF
(62KB)
Biological data Bacteria 1996-2021 Table 9 Microbialplankton (Bacteria density) 2022-03-09
Excel
(43KB)

PDF
(62KB)
Biological data Protozoa 1996-2021 Table 9 Microbialplankton (Protozoa density) 2022-03-09
Excel
(43KB)

PDF
(23KB)
Biological data Phytoplankton 1996-2021 Table 9 Microbialplankton (Picophyto-plankton density) 2022-03-09
Excel
(43KB)

PDF
(91KB)
Biological data Phytoplankton 1978-2021 Table 10 Phytoplankton density 2022-03-09
Excel
(1.5MB)

PDF
(91KB)
Biological data Primary production 1981-2021 Table 11 Primary production 2022-03-09
Excel
(161KB)
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Biological data Zooplankton 1980-2021 Table 12-1 Zooplankton density 2022-03-09
Excel
(329KB)

PDF
(59KB)
Biological data Zooplankton 1980-2021 Table 12-2 Density of Mysida 2021-03-09
Excel
(45KB)

PDF
(59KB)
Biological data Lakeshore plants 1992 Table 13-1 Results of vegetation research 1992-08-04
Excel
(39KB)
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PDF
(20KB)
Biological data Lakeshore plants 1992 Table 13-2 St.1 (Furuwatari) 1992-08-04
Excel
(36KB)
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PDF
(20KB)
Biological data Lakeshore plants 1992 Table 13-3 St.2 (Miho) 1992-08-04
Excel
(35KB)
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PDF
(20KB)
Biological data Lakeshore plants 1992 Table 13-4 St.3 (Tsuchiura) 1992-08-04
Excel
(33KB)
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PDF
(20KB)
Biological data Lakeshore plants 1992 Table 13-5 St.4 (Sakihama) 1992-08-04
Excel
(38KB)
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PDF
(20KB)
Biological data Benthos 1982-2021 Table 14-1 Benthos data 2022-03-09
Excel
(331KB)
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PDF
(26KB)
Biological data Fish 2005-2024 Table 15-1 Fish density data
クリエイティブ・コモンズ・ライセンス
2024-09-26
Excel
(37KB)

PDF
(13KB)
Biological data Fish 2005-2024 Table 15-2 Fish biomass data
クリエイティブ・コモンズ・ライセンス
2024-09-26
Excel
(42KB)

PDF
(13KB)
High-frequency dataWater temperature, dissolved oxygen 2022 Table 16-1, 16-2 2022-7-31
ZIP
(7.2MB)
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