Øvre Heimdalsvatn, Radiocaesium (Cs-137) monitored annually in brown trout (Salmo trutta)

最新版本 由 Natural History Museum, University of Oslo 發佈於 Oct 29, 2019 Natural History Museum, University of Oslo

"This dataset describes a long time serie for monitoring of radioactive radiocaesium isotope (Cs-137) concentration in the brown trout (Salmo trutta) population in a mountain lake (Øvre Heimdalsvatn) situated on the tree line in the eastern edge of the Jotunheimen Mountains. Ecosystem studies at Øvre Heimdalsvatn started in 1957, while this time series for radioecological monitoring started after the Chernobyl nuclear power plant accident in 1986. The aim of this study was to document the long-term changes in the radioactive isotope Cs-137 in brown trout and to elucidate the factors determining changes in Cs-137 activity concentrations over time. This dataset provides only one time serie from the extensive ecosystem studies (initiated in 1957) at Øvre Heimdalsvatn. The mountain lake is at 1090 meter above sea-level with a surface area of 0.78 square kilometer (km2) (78 hectare). The maximum length is 3 km and the maximum width is 396 m. The largest depth is 13 m and the average depth is 4.7 m. Vegetation near the lake ranges from subalpine birch forest with areas of mountain pasture to high alpine vegetation above 1,600 m a.s.l. Originally brown trout was the sole fish species in the lake, but since 1969 the European minnow (Phoxinus phoxinus) has also been recorded and its numbers have subsequently increased substantially. Brown trout for this study were generally caught by gill netting around the lake."

Data Records

The data in this 出現紀錄 resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 456 records. 1 extension data tables also exist. An extension record supplies extra information about a core record. The number of records in each extension data table is illustrated below.

  • Occurrence (核心)
    456
  • MeasurementOrFact 
    1368

This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.

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下載最新版本的Darwin Core Archive (DwC-A)資源,或資源元數據的EML或RTF文字檔。

DwC-A資料集 下載 456 紀錄 在 English 中 (62 KB) - Update frequency: 無計畫更新
元數據EML檔 下載 在 English 中 (8 KB)
元數據RTF文字檔 下載 在 English 中 (7 KB)

版本

The table below shows only published versions of the resource that are publicly accessible.

Rights

研究者應尊重以下權利聲明。:

The publisher and rights holder of this work is Natural History Museum, University of Oslo. 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: 7221810e-52b1-459d-a6a4-02160c67feef。  Natural History Museum, University of Oslo 發佈此資源,並經由GBIF Norway同意向GBIF註冊成為資料發佈者。

關鍵字

Occurrence; Specimen

聯絡資訊

資源建立者:

John Edward Brittain
Natural History Museum, University of Oslo Sars gate 1 0562 Oslo NO +4722851727
http://www.nhm.uio.no/english/

可回覆此資源相關問題者:

John Edward Brittain
Natural History Museum, University of Oslo Sars gate 1 0562 Oslo NO +4722851727
http://www.nhm.uio.no/english/

元數據填寫者:

GBIF-Norway
GBIF-Norway Sars gate 1 0562 Oslo NO +4722851654
http://gbif.no/

與此資源的相關者:

內容提供者
Jan Egil Gjerseth
NMBU Campus Ås 1430 Ås NO
https://www.nmbu.no/en
內容提供者
Reidar Borgstrøm
NMBU Campus Ås 1430 Ås NO
https://www.nmbu.no/en
內容提供者
John Gunnar Dokk
NMBU Campus Ås 1430 Ås NO
https://www.nmbu.no/en

地理涵蓋範圍

Øvre Heimdalsvatn, Norway

界定座標範圍 緯度南界 經度西界 [61.417, 8.84], 緯度北界 經度東界 [61.428, 8.895]

時間涵蓋範圍

起始日期 / 結束日期 1986-08-04 / 2007-09-19

計畫資料

無相關描述

計畫名稱 Øvre Heimdalsvatn
研究區域描述 Monitoring of lake ecosystem, including brown trout stocks and interaction with European minnow, benthic macroinvertebrates, zooplankton and radiocesium in water, fish, aquatic moss, allochthonous organic matter and lake sediments. Abiotic parameters, including lake water level, water temperature, ice cover duration, precipitation and air temperature, are also continuously measured. In addition, there extensive studies of bird behaviour in the catchment, as well as monitoring of small mammals.

The personnel involved in the project:

Brittain

額外的元數據

替代的識別碼 7221810e-52b1-459d-a6a4-02160c67feef
https://ipt.gbif.no/resource?r=heimdalsvatn