| General Information: |
| Title: | Phytoplankton species abundance in Lake Inba (Japan) from 1986 to 2016 |
| Identifier: | ERDP-2017-04.1.1 |
| Abstract: |
Lake Inba is one of the most eutrophic lakes in Japan. This data paper reports the abundance of phytoplankton species sampled biweekly from April 1986 to March 2016 at four stations in Lake Inba. Monitoring has been carried out by Chiba Prefectural Government, and phytoplankton count data have been collected since 1986. A total of 340 phytoplankton species were identified and enumerated by microscopy, as numbers of cells or colonies. The abundance of each species was expressed as cells per milliliter lake water. Total cell density ranged from 102 to 108 cells per ml. The dominant cell class density was Cyanobacteria throughout the year. Cyanobacteria, such as Phormidium spp., Microcystis aeruginosa, and Anabaena spp. (Dolicospermum spp.), were the most dense in all months. The dominant cyanobacteria species reached concentrations of 107 cells per ml. Diatoms, such as Aulacoseira granulata and A. ambigua, were also abundant, reaching 106 cells per ml. These data can be used to appreciate how anthropogenic disturbances, such as eutrophication and global warming, affect density and community composition of phytoplankton.
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| Keywords: |
- Lake Inba
- Phytoplankton
- Eutrophication
- Algal bloom
- Diatom
- Cyanobacteria
- Seasonal succession
- Long-term monitoring
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Involved Parties
| Data Set Owners: |
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Organization: | Chiba Prefectural Environmental Research Center |
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Address: |
| 3-5-1 Inagekaigan, Mihama-ku,, |
| Chiba, Chiba 261-0005 Japan |
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Phone:
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Web Address:
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| Data Set Contacts: |
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Individual: | Maiko Kagami |
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Organization: | Department of Environmental Science, Faculty of Science, Toho University |
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Address: |
| Miyama 2-2-1, |
| Funabashi, Chiba 274-8510 Japan |
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Phone:
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Email Address:
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Individual: | Akemi Iwayama |
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Organization: | Chiba Prefectural Environmental Research Center, Water quality section |
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Address: |
| Inagekaigan 3-5-1, Mihama-ku, |
| Chiba, Chiba 261-0005 Japan |
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Phone:
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Email Address:
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| Associated Parties: |
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Individual: | Maiko Kagami |
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Organization: | Department of Environmental Science, Faculty of Science, Toho University |
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Address: |
| Miyama 2-2-1, |
| Funabashi, Chiba 274-8510 Japan |
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Phone:
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Email Address:
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Individual: | Akemi Iwayama |
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Organization: | Chiba Prefectural Environmental Research Center, Water quality section |
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Address: |
| Inagekaigan 3-5-1, Mihama-ku, |
| Chiba, Chiba 261-0005 Japan |
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Phone:
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Email Address:
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Individual: | Hisako Ogura |
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Organization: | Chiba Prefectural Environmental Research Center |
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Individual: | Chih-hao Hsieh |
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Organization: | Institute of Oceanography, National Taiwan University |
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Data Set Characteristics
| Geographic Region: |
| Geographic Description: | Station 1 (Aso-bashi) |
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Bounding Coordinates:
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| West: | 140.145 degrees
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| East: | 140.145 degrees
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| North: | 35.751458 degrees
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| South: | 35.751458 degrees
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| Geographic Region: |
| Geographic Description: | Station 2 (Jousuidou-shusuikou-shita) |
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Bounding Coordinates:
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| West: | 140.1925 degrees
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| East: | 140.1925 degrees
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| North: | 35.734673 degrees
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| South: | 35.734673 degrees
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| Geographic Region: |
| Geographic Description: | Station 3 (Ipponmatsu-shita) |
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Bounding Coordinates:
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| West: | 140.209167 degrees
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| East: | 140.209167 degrees
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| North: | 35.766815 degrees
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| South: | 35.766815 degrees
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| Geographic Region: |
| Geographic Description: | Station 4 (Kitainbanuma-chuou) |
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Bounding Coordinates:
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| West: | 140.251944 degrees
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| East: | 140.251944 degrees
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| North: | 35.80003 degrees
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| South: | 35.80003 degrees
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Sampling, Processing and Quality Control Methods
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Step by Step Procedures
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| Step 1: |
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Description:
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For detailed information, see http://db.cger.nies.go.jp/JaLTER/ER_DataPapers/archives/2017/ERDP-2017-04/metadata
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Data Set Usage Rights
| 1) Acceptable use. The data set should not be used for illegal purposes or to violate the rights of others. Use of the data set will be restricted to academic, research, educational, government, or other not-for-profit professional purposes.
2) Citation. Data users should properly cite this data paper in any publications or in the metadata of any derived data products that were produced using the data set. As the metadata and the data set can be updated at any time, the update date should be shown in the bibliography.
3) Acknowledgement. To support this long-term monitoring activity, data users should provide acknowledgements in any publications to whose content the data set contributed as follows: “Data for XXX” was provided by the Chiba Prefectural Environmental Research Center.
4) Notification. Data users should notify the Data set Contact when any study or publication based on or derived from the data set is distributed. Inform the Data set Contact with two reprints or a PDF file of any publications resulting from use of the data set.
5) Collaboration. Data users are strongly encouraged to consider consultation, collaboration, and/or coauthorship with the data owners.
6) Disclaimer. In no event shall the authors, data owners, or the Chiba Prefectural Environmental Research Center be liable for a loss of profits or for any indirect or incidental damages arising from the use or interpretation of the data. |
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