說明
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 548 筆紀錄。
亦存在 2 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。:
DIVR (2026): DIVR Citizen Science Dive Observations. Sampling-event dataset. DIVR, the Netherlands. Distributed under CC-BY 4.0. https://www.divr-connect.com
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 Netherlands Biodiversity Information Facility (NLBIF)。 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: a5e45713-e815-4cae-ba0d-7a8b2cf2a3d4。 Netherlands Biodiversity Information Facility (NLBIF) 發佈此資源，並經由Netherlands Biodiversity Information Facility同意向GBIF註冊成為資料發佈者。
關鍵字
Samplingevent
聯絡資訊
地理涵蓋範圍
Global, dive sites recorded by DIVR users
| 界定座標範圍 | 緯度南界 經度西界 [-36.595, -171.553], 緯度北界 經度東界 [59.289, 178.129] |
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分類群涵蓋範圍
Marine taxa observed by recreational SCUBA divers and identified against the World Register of Marine Species (WoRMS); every scientificName carries a matching WoRMS LSID in scientificNameID. The dataset spans 1510 distinct taxa across multiple phyla. Reef-building and other corals are additionally recorded at the assemblage level (phylum Cnidaria) as the anchor taxon for coral-cover and coral-health measurements. Only the first 500 taxa are enumerated below; the complete list is in occurrence.txt.
| Phylum | Cnidaria |
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時間涵蓋範圍
| 起始日期 / 結束日期 | 2025-06-03 / 2026-06-02 |
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取樣方法
Records are produced by recreational divers logging a dive in the DIVR app, normally within a few hours of surfacing. One dive is one sampling event, carrying date, dive-site position, minimum and maximum depth, and dive duration in minutes as the sample size. samplingProtocol is "recreational scuba diving" throughout. There are no transects, no quadrats and no timed counts, and observers are not trained to a survey standard. Divers record species against a site-specific candidate list. A species offered by that list and not seen can be logged as a true absence, so occurrenceStatus carries both present and absent values rather than presence only. In this sample 1,910 records are present and 365 are absent. Where a diver cannot count reliably, abundance is captured as a SACFOR category instead of a count. Positions are the registered coordinates of the dive site, not a GPS fix taken in the water. coordinateUncertaintyInMeters is therefore a fixed nominal 100 m on every event and should be read as a site-level anchor rather than a measured uncertainty.
| 研究範圍 | Dive sites visited by DIVR users worldwide. This sample covers 548 dives at 394 distinct sites between 3 June 2025 and 2 June 2026, concentrated in Indonesia, the Philippines, Malaysia, Egypt and the Maldives. Coverage is opportunistic: it follows recreational diving activity rather than a sampling design, so it clusters at accessible and popular sites and within each region's diving season. There is no fixed station network and no revisit schedule. |
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方法步驟描述:
- 1. The diver logs the dive in the DIVR app: site, date, depth, duration and conditions. 2. Species are chosen from the DIVR catalogue, which is synchronised with the World Register of Marine Species. The accepted name and its WoRMS LSID are stored at the moment of entry, so scientificNameID is resolved at capture rather than reconciled afterwards. 3. Per-dive environmental readings (water temperature, horizontal visibility) and any coral assessment are attached to the event as extendedMeasurementOrFact rows. Coral cover and a 1-5 coral health rating are DIVR-local scales with no external vocabulary behind them; the remaining measurement types resolve to BODC P01 terms. 4. Records are exported as a Darwin Core Archive on the OBIS-ENV-DATA profile: Event core with Occurrence and extendedMeasurementOrFact extensions.
額外的詮釋資料
Export contains 548 dive events and 2275 occurrence records.