說明
Karina Vishnyakova, an international scientific observer, conducted cetacean observations from a platform of opportunity, abroad polish trawler Dalmor II that fished Antarctic krill, during a cruise from March to July 2011. Most of the fishing season the vessel was in the CCAMLR statistical area 48.2, to the north-east of the South Orkney Islands. Observations were conducted on the vessel deck or on the bridge. The following data were recorded: observation details, time, geographical coordinates, species and number of animals in a group (or minimum abundance estimate), distance from the vessel and behavioral specific details. Also the photo material was collected. Over the observation period 50 sightings of at least 280 individuals were recorded. Vast majority of recorded sightings (90%) and individuals (at least 90%) were minke whales (Balaenoptera bonaerensis); humpback whales (Megaptera novaeangliae) were recorded in 5 cases. The largest minke whale groups were recorded in first ten-day period of April. Whales in such groups demonstrated feeding behavior, actively fed on the high density krill aggregations. Probably such aggregations were later fished by vessels on those fishing grounds. Group size varied from 2-3 up to few tens individuals (in the mean 6 ± 9.23 (standard deviation), median 3 individuals). In first ten-day period of April average number of individuals in groups was 12 whales ( ± 15.75 (standard deviation), median 8 individuals). Frequency of occurrence did not correlated with the time of day. Distance to the animals also varied from few meters to 5-7 kilometers. However, direct interactions of whales with the vessel were never recorded. By late April – early May, number of sightings sharply declined, they became sporadic. During that period fast migrations of small whale groups were recorded. Also minke whales demonstrated «nervous» behavior, coming to the surface frequently and moving fast and jerky. Humpback whales were recorded in groups of 2-3 individuals at late April near the South Orkney Islands and early May near the South Shetland Islands.
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 50 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。
下載
下載最新版本的 Darwin Core Archive (DwC-A) 資源，或資源詮釋資料的 EML 或 RTF 文字檔。
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。:
Vishnyakova K (2016): Antractic whale observation on a platform of opportunity abroad krill fishing vessel "Dalmor II", April - July 2011.. v1.9. Ukrainian Scientific Centre of Ecology of the Sea (UkrSCES). Dataset/Occurrence. http://gp.sea.gov.ua:8082/ipt/resource?r=whale_observation_ccamlr_ukrsces&v=1.9
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 Ukrainian Scientific Centre of Ecology of the Sea (UkrSCES)。 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: e8e2a3e6-0225-4d37-8c66-5f00cc75c181。 Ukrainian Scientific Centre of Ecology of the Sea (UkrSCES) 發佈此資源，並經由Ocean Biodiversity Information System同意向GBIF註冊成為資料發佈者。
關鍵字
Antarctic; whales observation; occurence; Humpback whale; Minke whale; Observation
聯絡資訊
資源建立者:
可回覆此資源相關問題者:
元數據填寫者:
與此資源的相關者:
地理涵蓋範圍
Whale observation data was collected abroad polish trawler Dalmor II that fished Antarctic krill in the CCAMLR statistical area 48. Observation details, group size, behavioral specific details were fixed. Also photo material was collected. There were 50 sightings of at least 280 individuals from March to July 2011. Vast majority sightings (90%) were minke whales (Balaenoptera bonaerensis). Also humpback whales (Megaptera novaeangliae) were recorded.
| 界定座標範圍 | 緯度南界 經度西界 [-62.08, -59.27], 緯度北界 經度東界 [-60.16, -46.53] |
|---|
時間涵蓋範圍
| 起始日期 / 結束日期 | 2011-04-01 / 2011-06-22 |
|---|
取樣方法
visual observations on a platform of opportunity
| 研究範圍 | statistical subarea 48.2, 48.1; 01.04.2011 - 25.04.2011 - 48.2, 04.05.2011 - 14.05.2011 - 48.1, 20.05.2011 - 22.06.2011 - 48.2 |
|---|
方法步驟描述:
額外的詮釋資料
marine, harvested by iOBIS