https://ipt.taibif.tw/resource?r=ecological_survey_in_penghu_channel
Ecological Survey Data of the Eastern Waters off South Penghu Marine National Park
Meng-Hsien
Chen
Department of Oceanography, National Sun Yat-Sun University
Professor
No. 70, Lienhai Rd., Kaohsiung 80424, Taiwan, R.O.C.
Kaohsiung
TW
mhchen@mail.nsysu.edu.tw
0000-0002-1868-7061
Yi-Ling
Wu
Department of Oceanography, National Sun Yat-Sun University
Research Assistant
No. 70, Lienhai Rd., Kaohsiung 80424, Taiwan, R.O.C.
Kaohsiung
TW
lynn.880808@gmail.com
0009-0007-3661-3713
Yi-Ling
Wu
Department of Oceanography, National Sun Yat-sen University
Research Assistant
No. 70, Lienhai Rd., Kaohsiung 80424, Taiwan, R.O.C.
Kaohsiung
TW
lynn.880808@gmail.com
0009-0007-3661-3713
metadataProvider
Meng-Hsien
Chen
Department of Oceanography, National Sun Yat-sen University
Professor
No. 70, Lienhai Rd., Kaohsiung 80424, Taiwan, R.O.C.
Kaohsiung
TW
mhchen@mail.nsysu.edu.tw
0000-0002-1868-7061
principalInvestigator
Hsu-Sen
Chen
Department of Aquaculture, National Pingtung University of Science and Technology
Assistant Professor
1, Shuefu Road, Neipu, Pingtung 912, Taiwan, R.O.C.
Pingtung
TW
hschen@mail.npust.edu.tw
contentProvider
Chien-Cheng
Lai
Department of Oceanography, National Sun Yat-sen University
Research Assistant
No. 70, Lienhai Rd., Kaohsiung 80424, Taiwan, R.O.C.
Kaohsiung
TW
visxit00@gmail.com
contentProvider
Tzu-Chun
Chen
Department of Oceanography, National Sun Yat-sen University
Research Assistant
No. 70, Lienhai Rd., Kaohsiung 80424, Taiwan, R.O.C.
Kaohsiung
TW
contentProvider
2025-10-27
eng
The survey data were obtained from a beam trawl survey targeting benthic fishes, crustaceans, and cephalopods conducted in August 2024 by the R/V New Ocean Researcher III. All samples were collected using a beam trawl with a width of 6 m, a body length of 8 m, a body mesh size of 4.5 cm, and a cod-end mesh size of 2.5 cm. Each trawling operation was carried out at a towing speed of approximately 1.5 knots for 30 minutes. All sampling stations were located in the Penghu Channel, Taiwan. The collected specimens were sorted and identified to the lowest possible taxonomic level in the laboratory.
Samplingevent
GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml
This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License.
The study was conducted in the Penghu Channel, an offshore area along the western coast of Taiwan. Sampling was carried out at three stations (PC4a, PC4b, and PC5a) within the coordinates 119.735°E–119.910°E and 23.220°N–23.325°N. All sampling stations were located within the Penghu Channel.
119.735
119.91
23.325
23.22
2024-08-09
The dataset comprises 652 individual records of demersal fishes, shrimps, crabs, and cephalopods, representing 67 taxa from 53 genera and 42 families, which were captured during the survey period.
kingdom
Animalia
phylum
Arthropoda
phylum
Chordata
phylum
Mollusca
class
Cephalopoda
class
Elasmobranchii
class
Malacostraca
class
Teleostei
order
Acanthuriformes
order
Acropomatiformes
order
Aulopiformes
order
Callionymiformes
order
Carangiformes
order
Decapoda
order
Gadiformes
order
Kurtiformes
order
Labriformes
order
Lophiiformes
order
Myliobatiformes
order
Perciformes
order
Rajiformes
order
Sepiida
order
Syngnathiformes
order
Tetraodontiformes
order
Torpediniformes
family
Acropomatidae
family
Alpheidae
family
Apogonidae
family
Aulopidae
family
Bothidae
family
Callionymidae
family
Caproidae
family
Chaetodontidae
family
Champsodontidae
family
Epialtidae
family
Gadiformes
family
Goneplacidae
family
Haemulidae
family
Hippolytidae
family
Latreilliidae
family
Majidae
family
Matutidae
family
Monacanthidae
family
Moridae
family
Mullidae
family
Munididae
family
Ogcocephalidae
family
Pandalidae
family
Parthenopidae
family
Penaeidae
family
Percophidae
family
Pilumnidae
family
Pinguipedidae
family
Platycephalidae
family
Platyrhinidae
family
Porcellanidae
family
Portunidae
family
Rajidae
family
Scorpaenidae
family
Scyliorhinidae
family
Sepiidae
family
Serranidae
family
Sicyoniidae
family
Soleidae
family
Triglidae
family
Urolophidae
family
Xanthidae
unkown
Meng-Hsien
Chen
Department of Oceanography, National Sun Yat-Sun University
Professor
No. 70, Lienhai Rd., Kaohsiung 80424, Taiwan, R.O.C.
Kaohsiung
TW
mhchen@mail.nsysu.edu.tw
0000-0002-1868-7061
Sampling:
A beam trawl survey was conducted at three offshore stations (PC4a, PC4b, and PC5a) within the Penghu Channel, Taiwan, during a research cruise in August 2024. Each trawl was towed for 30 minutes at a speed of approximately 1.5 knots using a 6-meter-wide beam trawl with a body mesh size of 4.5 cm and a cod-end mesh size of 2.5 cm.
Specimen processing:
After retrieval, the catch from each haul was roughly sorted on board by major taxonomic groups, and all specimens were immediately frozen at −20 °C for preservation.
Laboratory identification:
In the laboratory, specimens were thawed, sorted, and identified to the lowest possible taxonomic level based on morphological characteristics using standard taxonomic references.
Data recording and verification:
All species identification results and abundance data were recorded on paper sheets, later digitized into spreadsheets, and cross-checked to ensure accuracy and consistency before inclusion in this dataset.
The study was conducted in the Penghu Channel, Taiwan, focusing on the benthic fauna including demersal fishes, shrimps, crabs, and cephalopods. Three offshore sampling stations (PC4a, PC4b, and PC5a) located east of Dongji Island were surveyed during a single research cruise in August 2024. Each station was trawled once using a standardized beam trawl to collect bottom-associated fauna for species composition analysis.
The sampling survey was conducted in the Penghu Channel, Taiwan, with three designated offshore stations located east of Dongji Island: PC4a (119.8170°E, 23.2341°N), PC4b (119.8170°E, 23.3208°N), and PC5a (119.7530°E, 23.2500°N). A single research cruise was carried out in August 2024, during which three trawl hauls were conducted, one at each station.
All biological specimens in this study were identified based on morphological characteristics. Identification for each major taxonomic group followed standard taxonomic references to the lowest possible taxonomic level (taxa), including:
1. Fishes: Shen (1993), Nakabo (2013), Froese and Pauly (2024), FishBase website (Shao, 2025).
2. Shrimps: Yu and Chen (1986), Liu and Chung (1986), Dore and Frimodt (1987), Chen and Yu (1993), Chan (1998a, 1998b).
3. Crabs: Takeda (1982), Miyake (1983), Tai et al. (1986), Huang and Yu (1997), Ng (1998), Chan et al. (2009), Yang et al. (2012), Huang and Shih (2021).
4. Cephalopods: Okutani (2005), Lu and Chung (2017).
All data were recorded in written field sheets and subsequently verified to ensure accuracy and consistency.
Ecological Survey of the Eastern Waters off South Penghu Marine National Park; The Sustainable Development of Taijiang National Park II-3
This dataset was funded by the Marine National Park Headquarters and the National Science and Technology Council (NSTC), Taiwan.
The project aims to investigate the benthic ecology of the eastern waters off the South Penghu Marine National Park. The sampling sites are located in the offshore area east of Dongji Island, north of the Marine Existing Use Area II (MEUA II) of Taijiang National Park, within the coordinate range of approximately 119.735°E–119.910°E and 23.220°N–23.325°N. The surveyed area is currently not designated as a Marine Protected Area (MPA) in Taiwan.
The purpose of this study was to investigate the benthic ecology and species composition of demersal fishes, shrimps, crabs, and cephalopods in the Penghu Channel, Taiwan. Sampling was conducted at three offshore stations (PC4a, PC4b, and PC5a) in August 2024. The sampling design aimed to document the diversity and structure of bottom-associated fauna within the channel, which connects the East China Sea and the South China Sea and is characterized by strong currents.
A standardized beam trawl protocol was applied to ensure data consistency and comparability with previous demersal surveys conducted in adjacent areas. Each trawl was towed at approximately 1.5 knots for 30 minutes using a 6-m-wide beam trawl with a body length of 8 m, a 4.5-cm body mesh, and a 2.5-cm cod-end mesh.
2025-10-27T04:11:26.892+00:00
dataset
Chen M-H, Wu Y-L (2025). Ecological Survey Data of the Eastern Waters off South Penghu Marine National Park. Version 1.0. Department of Oceanography, National Sun Yat-sen University, Kaohsiung Taiwan. Samplingevent dataset. https://ipt.taibif.tw/resource?r=ecological_survey_in_penghu_channel&v=1.0
https://ipt.taibif.tw/resource?id=ecological_survey_in_penghu_channel/v1.1.xml