LTSER Lyudao Stream fauna (freshwater)

Sampling event Observation
Latest version published by National Science and Technology Council (NSTC) on Jun 26, 2026 National Science and Technology Council (NSTC)

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Description

本項目為 LTSER Lyudao 計畫之一部分。於每年乾季(約 3–4 月)期間,針對綠島兩處常流水(溪流)——流麻溪(酬勤水庫)及柚子湖秘境瀑布,進行溪流動物相調查。調查目標生物的類群為:魚類、甲殼類(蝦與蟹)、軟體動物(螺與貝),以及水生昆蟲(含環節動物等)。目前從2021年起,已執行4次調查。This project is part of the LTSER Lyudao (Taiwan) program. Annual surveys of stream fauna are conducted in March or Apri (part of the dry season) at two perennial streams on Lyudao (Green Island): the Liuma Stream (Chouqin Reservoir) and the Youzihu Secret Falls. The surveys encompass three major categories: fish, decapod crustaceans (shrimps and crabs), mollusks (snails and bivalves), and aquatic insects (including annelids). A total of four surveys have been carried out since 2021.

Data Records

The data in this sampling event resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 53 records.

1 extension data tables also exist. An extension record supplies extra information about a core record. The number of records in each extension data table is illustrated below.

Event (core)
53
Occurrence 
438

This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.

Versions

The table below shows only published versions of the resource that are publicly accessible.

How to cite

Researchers should cite this work as follows:

邱郁文 (2024). LTSER Lyudao 溪流生物調查. Version 1.0. LTSER Lyudao 長期社會生態核心觀測綠島站. Dataset available at: https://pid.depositar.io/ark:37281/k5566577j

Rights

Researchers should respect the following rights statement:

The publisher and rights holder of this work is National Science and Technology Council (NSTC). This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License.

GBIF Registration

This resource has been registered with GBIF, and assigned the following GBIF UUID: 68262f35-4928-445e-959c-2aa191bed29f.  National Science and Technology Council (NSTC) publishes this resource, and is itself registered in GBIF as a data publisher endorsed by Taiwan Biodiversity Information Facility.

Keywords

LSTER; Long-term Social-Ecological Research (LTSER)_Lyudao; freshwater aquatic fauna; Q117499234; Q113648060; Q102192; Samplingevent; Specimen

Contacts

Yuh-Wen Chiu
  • Originator
  • Point Of Contact
  • Professor
National Chiayi University
TW
Hsin-Ju Wu
  • Metadata Provider
  • Research Assistant
National Chiayi University
LTSER Lyudao 長期社會生態核心觀測綠島站

Geographic Coverage

Two perennial streams on Lyudao (Green Island, Taitung): the Liuma Stream (Chouqin Reservoir) and the Youzihu Secret Falls.

Bounding Coordinates South West [22.658, 121.49], North East [22.678, 121.514]

Taxonomic Coverage

N/A

Kingdom Animalia
Phylum Arthropoda, Annelida, Chordata, Echinodermata, Mollusca
Class Holothuroidea, Clitellata, Bivalvia, Gastropoda, Thecostraca, Insecta, Actinopteri, Polycladidea, Echinoidea, Polyplacophora, Ophiuroidea, Malacostraca
Order Nudibranchia, Decapoda, Hemiptera, Dendrochirotida, Apodida, Chitonida, Aplysiida, Basommatophora, Scalpellomorpha, Diadematoida, Systellommatophora, Ephemeroptera, Chilophiurida, Lepidoptera, Gobiiformes, Diptera, Mytilida, Trichoptera, Neogastropoda, Ostreida, Aspidochirotid, Stomatopoda, Sphaeriida, Balanomorpha, Venerida, Littorinimorpha, Cyprinodontiformes, Mesogastropoda, Coleoptera, Odonata, Echinoida, Arbacioida, Sacoglossa, Anguilliformes, Archaeopulmonata, Isopoda, Archaeogastropoda
Family Diadematidae, Gerridae, Gonodactylidae, Physidae, Eleotridae, Stenopsychidae, Mytilidae, Ligiidae, Diogenidae, Pinnidae, Cymatiidae, Thiaridae, Bursidae, Hydroptilidae, Glossosomatidae, Anguillidae, Philopotamidae, Sesarmidae, Chitonidae, Eriphiidae, Volvatellidae, Calappidae, Costellariidae, Ephemeridae, Portunidae, Ellobiidae, Eulimidae, Chamidae, Cerithiidae, Veneridae, Lepadidae, Aplysiidae, Limnephilidae, Polyceridae, Oziidae, Chironomidae, Tonnidae, Isognomonidae, Baetidae, Varunidae, Sclerodactylidae, Alpheidae, Potamidae, Ecnomidae, Poeciliidae, Holothuriidae, Pisaniidae, Fasciolariidae, Ischnochitonidae, Coenagrionidae, Turbinidae, Plakobranchidae, Littorinidae, Heptageniidae, Onchidiidae, Xanthidae, Lymnaeidae, Caenidae, Nassariidae, Synaptidae, Ophiocomidae, Stomopneustidae, Platycnemididae, Veliidae, Leptophlebiidae, Echinometridae, Libellulidae, Planaxidae, Neritidae, Psephenidae, Atyidae, Vermetidae, Polycentropodidae, Pilumnidae, Palaemonidae, Hymenosomatidae, Stenopodidae, Sphaeriidae, Coenobitidae, Conidae, Cypraeidae, Ostreidae, Pyralidae, Hydropsychidae, Callianassidae, Mitridae, Oxynoidae, Stichopodidae, Muricidae, Lepidostomatidae, Grapsidae

Temporal Coverage

Start Date / End Date 2023-04-13 / 2025-04-09

Project Data

Establishing the Lyudao LTSER Core Observation Platform This project aims to enhance long-term socio-ecological research capacity on Lyudao (Green Island), Taiwan’s first offshore Long-Term Socio-Ecological Research (LTSER) station supported by the National Science and Technology Council (NSTC). Compared with stations on Taiwan’s main island, Lyudao requires significantly greater logistical effort for field surveys, stakeholder engagement, and issue assessment. To improve coordination and support on-the-ground operations, the project collaborates with the Marine Science Center of the Biodiversity Research Center, Academia Sinica, to establish the “Lyudao LTSER Core Observation Platform Office” at the Lyudao Marine Research Station. The office conducts routine tasks including: 1.Operation and maintenance of marine and terrestrial environmental monitoring instruments 2.Assistance with data collection, management, and open data dissemination 3.Engagement and communication with local stakeholders 4.Organization of workshops and outreach activities 5.Logistical and research support for field teams The project also compiles socio-ecological research related to Lyudao—including humanistic studies, socio-economic analyses, governance structures, and ecological research—and maps local stakeholder networks across private and public sectors. Workshops will be organized to identify emerging socio-economic conflicts, governance transition issues, and opportunities for collaboration. A communication platform (website and social media) will be established to enhance stakeholder interaction. The project further collects, manages, shares, and visualizes long-term social, environmental, and ecological observations following FAIR data principles. Data will be integrated into a platform for long-term storage, analysis, and open access to support scientific research, policy development, and local governance.

Title 綠島長期社會生態核心觀測平台建置 Establishment of the long-term social-ecological observatory core facility in Ludao
Identifier ltser-lyudao
Funding National Science and Technology Council (NSTC), Taiwan
Study Area Description Lyudao (Green Island) is the fourth-largest offshore island of Taiwan, located along the Kuroshio Current. The island hosts well-developed coral reefs that support rich biodiversity and provide essential ecosystem services. Historically a fishery-based society, Lyudao has transformed into a tourism-driven socio-ecological system, receiving nearly 400,000 visitors annually—approximately 100 times its registered population. The coral reef ecosystem is highly sensitive to disturbances such as climate change and intensive human activities. Understanding whether Lyudao can remain sustainable as a small Pacific island requires long-term monitoring of both ecological and social systems. Continuous observation of environmental conditions, marine and terrestrial ecosystems, and socio-economic dynamics is crucial for assessing ecosystem health, identifying vulnerabilities, and informing conservation and governance strategies.
Design Description The Lyudao LTSER Station serves as Taiwan’s model platform for island sustainability science. Small islands such as Lyudao possess limited environmental and socio-economic buffers, making them more vulnerable to climate change, global disturbances, and extreme events such as the COVID-19 pandemic. The station promotes the conservation of Lyudao’s coral reef ecosystem by highlighting its role as the foundation of the island’s socio-economic structure. Recognizing the interdependence between ecological integrity and human well-being, the project implements long-term, systematic observations across three domains: 1.Socio-ecological observations: socio-economic surveys, land/marine resource-use assessments, and development of indicators for sustainability. 2.Environmental observations: climate and hydrological monitoring, including microclimate towers and water-quality sensors, complemented by data from governmental agencies. 3.Ecological observations: monitoring terrestrial vegetation, passive acoustics, coral reef fish assemblages, coral diversity, recruitment, bleaching events, and marine ecosystem conditions. These integrated observations support future research on governance transitions related to food systems, energy, transportation, and ecological resilience. Through systematic data collection, methodological transparency, and FAIR-compliant data sharing, the Lyudao LTSER Station contributes to national development, conservation planning, and global sustainability science.

The personnel involved in the project:

Chaolun Allen Chen

Sampling Methods

Since environmental conditions may vary across sampling stations and survey events, certain survey items may not be executable due to site-specific constraints or prevailing environmental characteristics. However, the principles for the survey methods at each station are outlined below. A set of traps (consisting of one the long-foldable ring cage and two shrimp traps) was deployed overnight and retrieved the following day to record captured fish, decapods, and gastropods. In addition, field surveys were conducted using hand nets to record captured small fish, decapods, mollusks, and aquatic insects. During certain survey periods, the cage or traps could not be deployed due to insufficient water depth. And at the DMD station, hand net surveys could not be executed because of the excessively high cross-section, resulting in a lack of aquatic insect data.

Study Extent 【Study area and station】 The study covers two perennial streams on Lyudao (Green Island), Taiwan: the Liuma Stream (Chouqin Reservoir) and the stream of the Youzihu Waterfall. From upstream to downstream, the sampling stations along the Liuma Stream are designated as DMU (upstream of the reservoir), DM (the reservoir), DMD (downstream of the reservoir), and DMO (the reservoir intertidal outlet). Along the Youzihu Waterfall stream, the stations are designated as YZHFWU (upstream of the waterfall), YZHFW1 (the waterfall zone), and YZHFW2 (directly below the waterfall). 【Survey period and frequency】 Annual field surveys have been conducted around March or April each year, which falls within the dry season, from 2021 to the present.

Method step description:

  1. Field operations include deploying a set of traps (one long-foldable ring cage and two shrimp traps) overnight and conducting hand net surveys within the sampling area to capture stream fauna. Aquatic insect abundance was expressed as individuals per unit area, since hand nets allowed for sampling area estimation. For fish, decapods, and mollusks, abundance was expressed as the total number of individuals caught because multiple sampling gears were used.

Additional Metadata