説明
This dataset compiles bottom trawl survey data on demersal fishes collected along the western and southwestern coasts of Taiwan from 2020 to 2023. The survey covered 41 sampling stations across 10 key locations, ranging from Miaoli in the north to Pingtung in the south. In addition to commonly surveyed nearshore shallow areas, the sampling also extended to offshore regions with depths reaching 450 meters, encompassing distinct underwater geomorphological features such as the Changyun Rise, the Kaoping Submarine Canyon, and the Penghu Channel. This dataset represents one of the few systematic investigations in Taiwan that span a wide spectrum of bathymetric and geomorphological gradients. All surveys were conducted aboard the R/V New Ocean Research III, using a standardized 6-meter-wide beam trawl towed for 30 minutes at a speed of approximately 2 knots. A total of 119 hauls were completed, yielding 10,494 individual records representing 219 demersal fish species across 80 families. For each haul, the dataset includes species identification, number of individuals, sampling date, station location, and water depth. Published in Darwin Core format in accordance with GBIF standards, this dataset provides essential baseline information for understanding demersal fish assemblages in soft-bottom ecosystems along Taiwan’s western coast. As one of the few publicly accessible bottom trawl datasets from East Asia, it supports applications in marine protected area (MPA) planning, species distribution modeling (SDM), ecosystem service valuation, and global data integration for sustainable ocean governance.
データ レコード
この sampling event リソース内のデータは、1 つまたは複数のデータ テーブルとして生物多様性データを共有するための標準化された形式であるダーウィン コア アーカイブ (DwC-A) として公開されています。 コア データ テーブルには、119 レコードが含まれています。
拡張データ テーブルは1 件存在しています。拡張レコードは、コアのレコードについての追加情報を提供するものです。 各拡張データ テーブル内のレコード数を以下に示します。
この IPT はデータをアーカイブし、データ リポジトリとして機能します。データとリソースのメタデータは、 ダウンロード セクションからダウンロードできます。 バージョン テーブルから公開可能な他のバージョンを閲覧でき、リソースに加えられた変更を知ることができます。
バージョン
次の表は、公にアクセス可能な公開バージョンのリソースのみ表示しています。
引用方法
研究者はこの研究内容を以下のように引用する必要があります。:
Chen M H, Lai C C (2025). Bottom Trawl Survey of Demersal Fishes and Essential Fish Habitats along the Western Coast of Taiwan (2020–2023). Version 1.0. Department of Oceanography, National Sun Yat-sen University, Kaohsiung Taiwan. Samplingevent dataset. https://ipt.taibif.tw/resource?r=demersal_fishes_2020-2024&v=1.0
権利
研究者は権利に関する下記ステートメントを尊重する必要があります。:
パブリッシャーとライセンス保持者権利者は 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登録
このリソースをはGBIF と登録されており GBIF UUID: 56fc46e6-3b01-4673-be20-e5f81ba405e4が割り当てられています。 Taiwan Biodiversity Information Facility によって承認されたデータ パブリッシャーとして GBIF に登録されているDepartment of Oceanography, National Sun Yat-sen University, Kaohsiung Taiwan が、このリソースをパブリッシュしました。
キーワード
Samplingevent; bottom trawl; Taiwan Strait; fish assemblage; open biodiversity data
連絡先
- 最初のデータ採集者 ●
- 連絡先
https://orcid.org/0000-0002-1868-7061
- 研究代表者
地理的範囲
The study was conducted along the western and southwestern coasts of Taiwan. Sampling took place at 41 stations distributed across 10 key locations from Miaoli in the north to Pingtung in the south, encompassing a wide range of latitudes (~22.2°N to ~24.6°N).
| 座標（緯度経度） | 南 西 [22.169, 119.756], 北 東 [24.649, 120.743] |
|---|
生物分類学的範囲
The dataset comprises 10,494 individual records of demersal fishes, representing 219 species across 80 families. All fish specimens were identified to the lowest possible taxonomic level, primarily species, using authoritative references including Fishes of Taiwan (Shen, 1993), Fishes of Japan (Nakabo, 2013), and FishBase. The taxonomic classification follows the Darwin Core standard and the taxonomy is aligned with the GBIF Backbone Taxonomy.
| Kingdom | Animalia |
|---|---|
| Phylum | Chordata |
| Class | Chondrichthyes, Actinopterygii |
| Order | Gadiformes, Gasterosteiformes, Orectolobiformes, Tetraodontiformes, Ophidiiformes, Beryciformes, Stomiiformes, Torpediniformes, Lophiiformes, Carcharhiniformes, Aulopiformes, Myliobatiformes, Chimaeriformes, Scorpaeniformes, Perciformes, Rajiformes, Siluriformes, Anguilliformes, Pleuronectiformes, Clupeiformes, Myctophiformes |
| Family | Hemiscylliidae, Siganidae, Synodontidae, Haemulidae, Bregmacerotidae, Pristigasteridae, Percophidae, Carangidae, Myctophidae, Chimaeridae, Ogcocephalidae, Scyliorhinidae, Ephippidae, Platyrhinidae, Moridae, Apogonidae, Plotosidae, Sternoptychidae, Gerreidae, Hoplichthyidae, Samaridae, Scorpaenidae, Neoscopelidae, Triglidae, Pomacentridae, Monacanthidae, Drepaneidae, Nemichthyidae, Trichiuridae, Labridae, Lophiidae, Mullidae, Dactylopteridae, Urolophidae, Champsodontidae, Serranidae, Chlorophthalmidae, Polynemidae, Engraulidae, Rhinobatidae, Bothidae, Diodontidae, Narcinidae, Priacanthidae, Aploactinidae, Ostraciidae, Centriscidae, Tetraodontidae, Sciaenidae, Macrouridae, Stromateidae, Uranoscopidae, Terapontidae, Callionymidae, Ophichthidae, Nemipteridae, Callionymidae, Citharidae, Antennariidae, Cynoglossidae, Muraenidae, Gobiidae, Ophidiidae, Paralichthyidae, Sillaginidae, Platycephalidae, Acropomatidae, Pomacanthidae, Congridae, Sparidae, Trachichthyidae, Dasyatidae, Proscylliidae, Menidae, Pegasidae, Pinguipedidae, Labridae, Chaetodontidae, Aulopidae, Leiognathidae, Lutjanidae, Syngnathidae, Soleidae |
時間的範囲
| 開始日 / 終了日 | 2020-05-17 / 2023-07-15 |
|---|
プロジェクトデータ
This project aimed to investigate the composition of demersal fish communities along the western and southwestern coasts of Taiwan through standardized bottom trawl surveys conducted from 2020 to 2023 aboard the R/V New Ocean Research III. The surveys covered 10 representative coastal locations from Miaoli in the north to Pingtung in the south, with a total of 41 trawl stations spanning from nearshore shallow waters to offshore areas reaching depths of 450 meters. Each haul was conducted using a standardized 6-meter-wide beam trawl, towed at a speed of approximately 2 knots for 30 minutes. A total of 119 hauls were completed, resulting in 10,494 individual records of demersal fishes, representing 219 species across 80 families.
| タイトル | Long-term Marine Biodiversity Research and Monitoring Program Supported by MOST and NSTC in Taiwan (2019-2023) |
|---|---|
| 識別子 | MOST 108- 2611-M-110-005, 108-2621-M-110-003, 109-2611-M-110-006, 109- 2621-M-110-002, 110-2611-M-110-016, 110-2621-M-110-001, NSTC 111-2611-M-110- 006, 111-2621-M-110-002, 112-2611-M-029, 112-2621-M-110- 002 |
| ファンデイング | This dataset was generated as part of long-term research projects supported by the Ministry of Science and Technology (MOST) and the National Science and Technology Council (NSTC), Taiwan. The specific grant numbers supporting this work include: MOST: 108-2611-M-110-005, 108-2621-M-110-003, 109-2611-M-110-006, 109-2621-M-110-002, 110-2611-M-110-016, 110-2621-M-110-001 NSTC: 111-2611-M-110-006, 111-2621-M-110-002, 112-2611-M-029, 112-2621-M-110-002 |
| Study Area Description | The project focused on the soft-bottom marine habitats along the western and southwestern coasts of Taiwan, covering a wide latitudinal and bathymetric range. The study area includes nearshore and offshore environments featuring complex geomorphological structures such as the Changyun Rise, Penghu Channel, and Kaoping Submarine Canyon. |
| 研究の意図、目的、背景など（デザイン） | The purpose of this study was to investigate the species composition of demersal fish assemblages and the influence of environmental factors along the western and southwestern coasts of Taiwan. A total of 41 sampling stations were established across 10 key locations, spanning a wide range of latitudes (approximately 22.2°N to 24.6°N) and depths (15 to 450 meters). The sampling design included both nearshore and offshore soft-bottom habitats and geomorphologically distinct areas such as the Changyun Rise, the Penghu Channel, and the Kaoping Submarine Canyon. A standardized beam trawl protocol and concurrent environmental measurements were applied to ensure data consistency and facilitate integrated ecological analysis. |
収集方法
All sampling followed a standardized protocol using a 6-meter-wide beam trawl with a net body length of 8 meters and a cod-end mesh size of 2.5 cm. Each haul lasted for 30 minutes at a towing speed of approximately 2 knots. The total trawled area per haul was estimated at approximately 11,112 m². Each haul was treated as an independent sampling unit. Onboard, the fish catch was roughly sorted by major taxonomic groups, and all specimens were immediately frozen at −20°C for preservation. After returning to the laboratory, specimens were transferred to laboratory freezers for further identification and data recording. Sampling was conducted during both the warm (May–October) and cold (November–April) seasons to capture seasonal variation in fish assemblages. Stations spanned a depth gradient from 15 to 450 meters, covering both continental shelf and slope environments, and included geomorphologically distinct features such as submarine canyons, underwater rises, and channels.
| Study Extent | The study was conducted along the western and southwestern coasts of Taiwan between May 2020 and July 2023. Sampling took place at 41 stations distributed across 10 key locations from Miaoli in the north to Pingtung in the south, encompassing a wide range of latitudes (~22.2°N to ~24.6°N) and depths (15 to 450 meters). The survey area includes both nearshore and offshore soft-bottom habitats, with geomorphologically distinct features such as the Changyun Rise, the Penghu Channel, and the Kaoping Submarine Canyon. The trawl surveys targeted demersal fish communities inhabiting unconsolidated sedimentary substrates across continental shelf and slope zones. |
|---|---|
| Quality Control | All fish specimens were identified by experienced taxonomists specializing in marine fish fauna of Taiwan. Species identification was based on morphological characteristics following standard taxonomic keys and literature, including Shen (1993), Nakabo (2013), and FishBase (2024). Scientific names were verified and standardized according to the updated taxonomy in FishBase and the Taiwan Fish Database (FishDB). Data quality control was conducted throughout the data compilation process. Species names, geographic coordinates, sampling dates, and depth information were checked for consistency and errors. The dataset was structured and formatted following the Darwin Core standard for publication on GBIF. |
Method step description:
- All fish specimens were identified to the lowest possible taxonomic level, typically to species, and the number of individuals per species was recorded. Some specimens were retained as vouchers. Taxonomic identification followed authoritative references, including Shen (1993), Nakabo (2013), and FishBase (2025).