Sampling event

Fish assemblages off western Taiwan

Latest version published by Department of Oceanography, National Sun Yat-sen University, Kaohsiung Taiwan on 03 July 2023 Department of Oceanography, National Sun Yat-sen University, Kaohsiung Taiwan

Download the latest version of this resource data as a Darwin Core Archive (DwC-A) or the resource metadata as EML or RTF:

Data as a DwC-A file download 27 records in English (12 KB) - Update frequency: unknown
Metadata as an EML file download in English (15 KB)
Metadata as an RTF file download in English (11 KB)


This dataset, derived from two OR3 research vessel surveys conducted at seven nearshore sites off the western coast of Taiwan in May (late spring) and November (late autumn) 2019, offers a record of small demersal fish assemblages. The data includes 1,809 fish, covering 37 families, 67 genera, and 99 taxa. While the number of fish species recorded in May (26 families, 47 genera, 65 taxa) and November (31 families, 46 genera, 63 taxa) are similar, there is a significant difference in the fish composition. Thirty-six species, belonging to 19 families and 30 genera, were exclusively observed in May, whereas 34 species from 25 families and 28 genera were only recorded in November.

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 27 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)

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.


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

How to cite

Researchers should cite this work as follows:

Chen M (2023): Fish assemblages off western Taiwan. v1.1. Department of Oceanography, National Sun Yat-sen University, Kaohsiung Taiwan. Dataset/Samplingevent.


Researchers should respect the following rights statement:

The publisher and rights holder of this work is Department of Oceanography, National Sun Yat-sen University, Kaohsiung Taiwan. 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: 787439e4-64af-4a0e-8d55-b88bb19a7c78.  Department of Oceanography, National Sun Yat-sen University, Kaohsiung Taiwan publishes this resource, and is itself registered in GBIF as a data publisher endorsed by Taiwan Biodiversity Information Facility.


Samplingevent; beam trawl; Fish assemblages; croaker; tropic; subtropic


Chiee-Young Chen
  • Principal Investigator
National Kaohsiung University of Science and Technology
No.142, Haijhuan Rd., Nanzih Dist.
Chien Cheng Lai
  • Metadata Provider
  • Originator
research assistant
Department of Oceanography
70, Leihai Rd, Gushen Dist.
Kuo-Shu Chen
  • Author
Associate research fellow
National Academy of Marine Research
11F., No. 25, Chenggong 2nd Rd., Qianzhen Dist.
Hsu-Sen Chen
  • Author
Assiatant professor
National Pingtung University of Science Technology
1, Shuefu Road, Neipu
Meng-Hsien Chen
  • Originator
  • Point Of Contact
  • Principal Investigator
Department of Oceanography
70, Leihai Rd, Gushen Dist.

Geographic Coverage

Western coast of Taiwan

Bounding Coordinates South West [22.281, 119.992], North East [24.277, 120.626]

Taxonomic Coverage


Kingdom Animalia
Phylum Chordata 
Class Actinopterygii
Order Aulopiformes, Pleuronectiformes, Tetraodontiformes, Scorpaeniformes, Perciformes, Gasterosteiformes
Family Bothidae, Leiognathidae, Platycephalidae, Synodontidae, Solenostomidae, Apogonidae, Mullidae, Cynoglossidae, Soleidae, Tetraodontidae, Callionymidae, Pegasidae, Paralichthyidae, Sillaginidae

Temporal Coverage

Start Date / End Date 2019-05-25 / 2019-11-18

Sampling Methods

The surveys were conducted by R/V Ocean Researcher No.3 using a beam trawl (width 6 m, body length 8 m, body mesh 4.5 cm, and cod end mesh 2.5 cm) operating at a water depth of between 15 and 35 m, approximately 3 nautical miles off the coastline. At each site, two sampling locations were set at a water depth of ca.15 m and ca.25 m, respectively. In total, 27 trawling hauls were conducted . For each trawl haul, the beam trawl was deployed to touch the seafloor at the sampling site, with a towing speed of ca. 2 knots for a period of 30 min.

Study Extent Two seasonal cruises, on 25th to 27th May (late spring) and 16th to 18th November (late autumn), 2019 were conducted at seven sites along the western coastal waters off Taiwan. From north to south, these sites were Wuchi (Wuqi) (WC) (24°15’N), Wanggong (WG) (23°59’N), Taisi (Taixi) (TS) (23°39’N), Chiku (Qigu) (CK) (23°09’N), Jiading (Qieding) (JD) (22°52’N), Linyuan (LY) (22°28’N), and Fangliao (FL) (22°18’N). These sites were chosen according to their topographic features and environmental conditions.
Quality Control The identification of fish specimens was conducted to the lowest level of taxonomic hierarchy possible based on the following reference books of Shen et al. and Nakabo et al., and the fish databases of Froese and Pauly and Shao.

Method step description:

  1. The fish specimens caught by each trawl haul were immediately extracted from the catches, roughly classified by species and frozen at − 20°C on board. Subsequently, all fish specimens were transferred to the laboratory on land for taxonomic identification.

Additional Metadata

Alternative Identifiers e24ba205-4508-4a55-aed3-0db1fc1ab453