Sampling event

Survey of Plankton Diatoms in Nanren Lake

Latest version published by Taiwan Biodiversity Research Institute on 23 May 2020 Taiwan Biodiversity Research Institute
Publication date:
23 May 2020
CC-BY-NC 4.0

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This study surveyed the plankton diatoms in Nanren Lake, Kenting National Park, Pingtung County, Taiwan. A total of 29 species of 21 genera were identified, and most species belonged to the Eunotia and Nitzschia genera. However, Aulacoseira granulata and Discostella stelligera were the dominant species.

Data Records

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Event (core)

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How to cite

Researchers should cite this work as follows:

Lee L (2019): Survey of Plankton Diatoms in Nanren Lake. v1.4. Taiwan Endemic Species Research Institute. Dataset/Samplingevent.


Researchers should respect the following rights statement:

The publisher and rights holder of this work is Taiwan Biodiversity Research Institute. This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC) 4.0 License.

GBIF Registration

This resource has been registered with GBIF, and assigned the following GBIF UUID: a9d518d1-f0f3-477b-a7a3-aa9f61eb1e54.  Taiwan Biodiversity Research Institute publishes this resource, and is itself registered in GBIF as a data publisher endorsed by Taiwan Biodiversity Information Facility.


plankton;diatom;Nanren Lake


Li-hua Lee
  • Metadata Provider
Taiwan Endemic Species Research Institute
Li-Hua Lee
  • Originator
  • Point Of Contact
Taiwan Endemic Species Research Institute

Geographic Coverage

Located in the Nanren Mountain Ecological Protection Area in the northeastern part of Kenting National Park, Nanren Lake comprises three permanent lakes: the Central Water Body, Independent Nanren Lake, and Yilan Lake (or Ancient Nanren Lake). The natural freshwater lake is formed of rainwater and spring water and is the largest static ecological water system in Nanren Lake.

Bounding Coordinates South West [21.617, 119.707], North East [25.602, 122.432]

Taxonomic Coverage

No Description available

Species Aulacoseira granulata, Brachysira vitrea, Burliganiella siolii, Cyclotella atomus, Cymbella novazeelandiana, Diploneis oblongella, Discostella stelligera, Encyonema gracile, Eunotia camelus, Eunotia rabenhorstii var. monodon, Eunotia subarcuatoides, Eunotia yberai, Frustulia rhomboides, Geissleria decussis, Gomphonema archaevibrio, Gyrosigma scalproides, Luticola goeppertiana, Navicula leptostriata, Navicula sp., Nitzschia alpina, Nitzschia nana, Nitzschia palea, Nitzschia subacicularis, Pinnularia brauniana, Pinnularia subgibba, Sellaphora pupula, Stauroneis anceps, Stenopterobia curvula, Surirella sp.

Temporal Coverage

Start Date / End Date 2018-01-01 / 2018-12-31

Project Data

No Description available

Title Survey of Plankton Diatoms in Nanren Lake
Study Area Description Located in the Nanren Mountain Ecological Protection Area in the northeastern part of Kenting National Park.
Design Description To explore the plankton diatom diversity in Nanren Lake, this study collected a water sample from Nanren Lake on January 18, 2018, for diatom species identification.

The personnel involved in the project:

Li-Hua Lee
  • Metadata Provider

Sampling Methods

Plankton diatoms collection was performed on January 18, 2018. The sampling sites were the Ancient Nanren Lake (St1), west side of the main lake (St2), and east side of the main lake (St3), as illustrated in Fig. 1. From each site, 500 mL of lake water was collected and transported to the laboratory for observation and species identification.

Study Extent Nanren Lake is located in the Nanren Mountain Ecological Protection Area in northeastern Kenting National Park on the east coast of the Hengchun Peninsula. The geographic position is 22°50’N and 120°50’E. The altitude of the nearby Nanren Mountain to the west of Nanren Lake is 479 m, categorized as low-altitude highland. The Central Water Body of Nanren Lake was originally paddy fields and wetlands. Local residents moved away because of the hardship of making a living there. In 1982, the only outlet of the water body, Hongtu Stream, became clogged, and water stagnated to form the current Nanren Lake. According to a survey conducted in 1990, the area of the lake at that time was 22.54 ha

Method step description:

  1. All the diatom fluids were first concentrated in a centrifugal machine for 10 minutes at 3,500 rpm; the fresh diatoms were then observed using a differential interference contrast microscope. Subsequently, acid washing was conducted using concentrated sulfuric acid, after which observation and identification processes were performed using an electron microscope.

Collection Data

Collection Name Survey Data of Plankton Diatoms in the Nanren Lake
Specimen preservation methods Refrigerated

Bibliographic Citations

  1. 1.Round F. E., Crawford R. M. and D.D. Mann. 1996. The diatoms, biological and morophology of the genera. Published by Camberidge Univ. Press.
  2. 2.Wu J. T., Babu B., Chou C. L. and S. J. Saraswathi. 2011. Freshwater Diatom Flora of Taiwan. Biodiversity Research Center, Academia Sinica.

Additional Metadata

Alternative Identifiers a9d518d1-f0f3-477b-a7a3-aa9f61eb1e54