說明
This dataset is derived from ten surveys with a total of 20 otter trawling sessions conducted at the Changyun Rise off the western coast of Taiwan between 2017-2018 and 2020-2021. The surveys were conducted at two sites, inshore (15-25 m depth) and offshore (40-50 m depth), utilizing a commercial otter trawling boat prior to the commencement of the offshore wind farm development. The dataset includes 8,026 individual fish, encompassing 51 families, 84 genera, and 128 taxa. Not only did the composition and abundance (ind./104m2) of fish species significantly differ between the inshore and offshore sites, but spatiotemporal variation was also observed in dominant fish species between 2017-2018 and 2020-2021. This dataset serves as a baseline for demersal fish prior to the development of the Changhua offshore wind farm. It offers critical information for subsequent environmental impact assessments, proposing mitigation measures, and establishing continuous monitoring networks.
資料紀錄
此資源sampling event的資料已發佈為達爾文核心集檔案（DwC-A），其以一或多組資料表構成分享生物多樣性資料的標準格式。 核心資料表包含 20 筆紀錄。
亦存在 1 筆延伸集的資料表。延伸集中的紀錄補充核心集中紀錄的額外資訊。 每個延伸集資料表中資料筆數顯示如下。
此 IPT 存放資料以提供資料儲存庫服務。資料與資源的詮釋資料可由「下載」單元下載。「版本」表格列出此資源的其它公開版本，以便利追蹤其隨時間的變更。
版本
以下的表格只顯示可公開存取資源的已發布版本。
如何引用
研究者應依照以下指示引用此資源。:
Chen M (2023): Otter trawling fish assemblages at the Changyun Rise off central western Taiwan in 2017-2021. v1.1. Department of Oceanography, National Sun Yat-sen University, Kaohsiung Taiwan. Dataset/Samplingevent. https://ipt.taibif.tw/resource?r=owf-fish_cyr&v=1.1
權利
研究者應尊重以下權利聲明。:
此資料的發布者及權利單位為 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 註冊
此資源已向GBIF註冊，並指定以下之GBIF UUID: 00647bc1-bca9-4247-ab28-e1ef81fcbc93。 Department of Oceanography, National Sun Yat-sen University, Kaohsiung Taiwan 發佈此資源，並經由Taiwan Biodiversity Information Facility同意向GBIF註冊成為資料發佈者。
關鍵字
Samplingevent; Changyun Rise; fish assemblages; baseline; wind farm
聯絡資訊
- 元數據提供者 ●
- 作者
- 作者
- 作者
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https://orcid.org/0000-0002-1868-7061
地理涵蓋範圍
Sampling was conducted at two sites off Changhua, central western Taiwan.
| 界定座標範圍 | 緯度南界 經度西界 [24.032, 119.996], 緯度北界 經度東界 [24.136, 120.291] |
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分類群涵蓋範圍
N/A
| Kingdom | Animalia |
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| Phylum | Chordata |
| Class | Actinopterygii, Chondrichthyes |
| Order | Torpediniformes, Scorpaeniformes, Perciformes, Gasterosteiformes, Anguilliformes, Aulopiformes, Pleuronectiformes, Tetraodontiformes, Myliobatiformes, Rajiformes, Siluriformes |
| Family | Sciaenidae, Platycephalidae, Synodontidae, Rhynchobatidae, Mullidae, Ariidae, Dasyatidae, Fistulariidae, Triacanthidae, Carangidae, Ophichthidae, Leiognathidae, Ephippidae, Diodontidae, Narcinidae, Cynoglossidae, Soleidae, Tetraodontidae, Sillaginidae |
時間涵蓋範圍
| 起始日期 / 結束日期 | 2017-07-05 / 2021-09-02 |
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取樣方法
Surveys were carried out during daytime using a local commercial otter trawler, with a width of 8 m, body length of 70 m, body mesh size of 7 cm, and cod end mesh size of 4 cm. The trawler was operated at water depths ranging from 15-25 m at the inshore site, approximately 9 km off the coastline, and 40-50 m at the offshore site, approximately 42 km off the coastline. Trawling was conducted at a speed of 3-4 knots for 20 minutes at each site.
| 研究範圍 | Commercial otter trawler , a common practice in Changyun Rise (CYR), was conducted at two sites off Changhua, central western Taiwan. These include an inshore site (FS20) with a water depth of 15-25 meters (approx. 24°02'N, 120°16'E) and an offshore site (FS40) with a water depth of 40-50 meters (approx. 24°06'N, 120°00'E). |
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| 品質控管 | The biological samples were identified to the lowest taxa according to Chen et al. (2019), Froese & Pauly (2021), and Shao (2021). |
方法步驟描述:
- 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.