說明
The dataset contains data from glass eel that was captured with drag and lift nets during rising tide. This to study their distribution over the area. A fyke was used to investigate the influence of limited drainage opening during rising tide on elver migration.
To allow anyone to use this dataset, we have released the data to the public domain under a Creative Commons Zero waiver (http://creativecommons.org/publicdomain/zero/1.0/). We would appreciate however, if you read and follow these norms for data use (http://www.inbo.be/en/norms-for-data-use) and provide a link to the original dataset (https://doi.org/10.15468/cynpxv) whenever possible. If you use these data for a scientific paper, please cite the dataset following the applicable citation norms and/or consider us for co-authorship. We are always interested to know how you have used or visualized the data, or to provide more information, so please contact us via the contact information provided in the metadata, opendata@inbo.be or https://twitter.com/LifeWatchINBO.
資料紀錄
此資源出現紀錄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 1,171 筆紀錄。
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。:
Mouton A (2022): Glasaalmigratie - Glass eel migration in the river Yser. v11.4. Research Institute for Nature and Forest (INBO). Dataset/Occurrence. https://doi.org/10.15468/cynpxv
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 Research Institute for Nature and Forest (INBO)。 To the extent possible under law, the publisher has waived all rights to these data and has dedicated them to the Public Domain (CC0 1.0). Users may copy, modify, distribute and use the work, including for commercial purposes, without restriction.
GBIF 註冊
此資源已向GBIF註冊，並指定以下之GBIF UUID: 67fa6403-d5c3-401b-b35d-ec70538ea41d。 Research Institute for Nature and Forest (INBO) 發佈此資源，並經由Belgian Biodiversity Platform同意向GBIF註冊成為資料發佈者。
關鍵字
Occurrence; Observation; European eel; estuary management; tidal barrier; glass eel; fish migration; Occurrence
聯絡資訊
- 元數據提供者 ●
- 出處 ●
- 連絡人
地理涵蓋範圍
The river Yser, Flanders, Belgium. The Yser basin covers an area of 1101 km² and 32 km of the river is located in France and Belgium.The basin is known as an important area for European eel, providing valuable habitats for growth and development (Denayer & Belpaire 1996). The Yser is a river that originates in French Flanders (the north of France), enters the Belgian province of West Flanders and flows into the North Sea at the town of Nieuwpoort. (http://en.wikipedia.org/wiki/Yser)
| 界定座標範圍 | 緯度南界 經度西界 [50.96, 2.52], 緯度北界 經度東界 [51.18, 2.92] |
|---|
分類群涵蓋範圍
All records in this dataset are European eel (Anguilla anguilla).
| Class | Actinopterygii (ray-finned fishes) |
|---|---|
| Species | Anguilla anguilla (European eel) |
時間涵蓋範圍
| 起始日期 / 結束日期 | 2009-03-30 / 2009-04-10 |
|---|
計畫資料
無相關描述
| 計畫名稱 | Raamovereenkomst ecologische advisereing en onderzoek tussen W&Z en het INBO |
|---|---|
| 經費來源 | Waterwegen en Zeekanaal NV (W&Z) - http://www.wenz.be/en/ |
| 研究區域描述 | European eel Anguilla anguilla (L.) populations have declined dramatically during the last decades and are now among the most critically endangered fish populations in Europe. The limitation of upstream migration of glass eels is considered to be one of the key factors reducing eel populations. The migration of eels in their juvenile stage (glass eels) was studied, and options to improve eel passage at a tidal barrier complex at the mouth of the Yser River, Flanders,Belgium, were assessed. Glass eels were sampled during tidal rise with stow nets and lift nets to analyse their distribution over the study area, while a fyke net was used to evaluate the impact of limited barrier opening on glass eel migration. Support-vector machine-based analysis of the lift net data indicated that migrating glass eels are attracted by the fresh water flow leaking from the barriers, whereas other variables such as the sampling location only had a weak influence on the glass eel density. Limited barrier opening during tidal rise appeared to be a cost-efficient and effective mitigation option to improve upstream glass eel migration without significant intrusion of seawater. Adjusted barrier management could often be implemented and applied on numerous tidal barriers. Therefore the results of this research are of interest to a wide range of river managers and stakeholders and may contribute to the conservation of many eel populations. |
參與計畫的人員:
- 連絡人
取樣方法
Glass eel were sampled during tidal rise with stow nets and lift nets to study their distribution over the study area, while a fyke net was used to evaluate the impact of limited barrier opening on glass eel migration.
| 研究範圍 | Estuary of the river Yser |
|---|---|
| 品質控管 | "All records are validated." |
方法步驟描述:
- one step at a time
引用文獻
- Onderzoek naar glasaalmigratiemogelijkheden in de Ganzepoot (IJzermonding) in Nieuwpoort. Studie in opdracht van W&Z, Afdeling Bovenschelde. Rapporten van het Instituut voor Natuur- en Bosonderzoek 2009 (INBO.R.2009.62). Instituut voor Natuur- en Bosonderzoek, Brussel. http://www.inbo.be/files/bibliotheek/86/187086.pdf
額外的詮釋資料
| 目的 | The presented data may contribute to restoration of eel populations worldwide and be of interest to a wide range of river managers and stakeholders. |
|---|---|
| 替代的識別碼 | 67fa6403-d5c3-401b-b35d-ec70538ea41d |
| https://ipt.inbo.be/resource?r=glasaalmigratie-occurrences |