說明
This dataset comprises 389 records of marine mammals collected during nine vessel surveys conducted during 2009-2015, along the Argentine continental shelf. The surveys, carried out between November and April, were designed as line-transect sampling methodology with data collection through visual methods. The database comprises 7 families, 14 genus and 17 marine mammals species were sighted, including records of dolphins, whales and pinnipeds.
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 389 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。:
Retana M V, Lewis M N, Dellabianca N A, Raya Rey A, Scioscia G, Torres M (2016): Sightings of marine mammals carried out during oceanographic surveys in the Argentine continental shelf. v1.2. ArOBIS Centro Nacional Patagónico. Dataset/Occurrence. http://arobis.cenpat-conicet.gob.ar:8081/resource?r=arobis-cenpat-cadic-mammalobs&v=1.2
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 ArOBIS Centro Nacional Patagónico。 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: 79e731ed-fe9b-4d50-93f7-ab1f01636385。 ArOBIS Centro Nacional Patagónico 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
Occurrence; Sightings; Vessels; Marine Mammals; Pinnipeds; Whales; Dolphins; Surveys; Census; Southwest Atlantic Ocean; Argentine Continental Shelf; Argentine Sea; Observation
聯絡資訊
- 元數據提供者 ●
- 出處
- Postdoctoral fellow
- Bv. Almirante Brown 2915
- +54 280 4883184 (int. 1242)
- 出處
- Researcher
- Bv. Almirante Brown 2915
- +54 280 4883184 (int. 1242)
- 出處
- Researcher
- Bernardo Houssay 200
- +54 2901 422310
- 出處
- Researcher
- Bernardo Houssay 200
- +54 2901 422310
- 出處
- Postdoctoral fellow
- Bernardo Houssay 200
- +54 2901 422310
- 出處
- Professional supporting to research
- Bernardo Houssay 200
- +542901422310
- 元數據提供者 ●
- 程式設計師 ●
- 連絡人
- Professional supporting to research
- Bv. Almirante Brown 2915
- +54 280 4883184 (int. 1202)
- 程式設計師
- Coordinator of the Information Management Unit
- Bv. Almirante Brown 2915
- +54 280 4883184 (int. 1260)
地理涵蓋範圍
Argentine continental shelf (Southwest Atlantic Ocean)
| 界定座標範圍 | 緯度南界 經度西界 [-58, -70], 緯度北界 經度東界 [-37, -55] |
|---|
分類群涵蓋範圍
All individuals were identified to species level, except for some individuals that been identified until family and genus level. The dataset comprises 7 families, 14 genus and 18 species.
| Family | Balaenopteridae (Rorquals), Delphinidae (Dolphins) |
|---|---|
| Genus | Balaenoptera (Baleen whales) |
| Species | Arctocephalus australis (South American fur seal), Balaenoptera bonaerensis (Antarctic minke whale), Balaenoptera borealis (Sei whale), Cephalorhynchus commersonii (Commerson's dolphin), Delphinus delphis (Short-Beaked common dolphin), Eubalaena australis (Southern right whale), Globicephala melas (Long-finned pilot whale), Lagenorhynchus australis (Peale's dolphin), Lagenorhynchus cruciger (Hourglass dolphin), Lagenorhynchus obscurus (Dusky dolphin), Megaptera novaeangliae (Humpback whale), Mirounga leonina (Southern elephant seal), Orcinus orca (Killer whale), Otaria flavescens (South American sea lion), Phocoena dioptrica (Spectacled Porpoise), Physeter macrocephalus (Sperm whale), Tursiops truncatus (Common bottlenose dolphin) |
時間涵蓋範圍
| 起始日期 / 結束日期 | 2009-11-29 / 2009-12-16 |
|---|
| 起始日期 / 結束日期 | 2012-02-13 / 2012-03-24 |
|---|
| 起始日期 / 結束日期 | 2012-03-27 / 2012-04-14 |
|---|
| 起始日期 / 結束日期 | 2013-01-25 / 2013-02-19 |
|---|
| 起始日期 / 結束日期 | 2014-01-30 / 2014-02-16 |
|---|
| 起始日期 / 結束日期 | 2014-02-12 / 2014-03-18 |
|---|
| 起始日期 / 結束日期 | 2014-03-29 / 2014-04-04 |
|---|
| 起始日期 / 結束日期 | 2014-11-04 / 2014-11-27 |
|---|
| 起始日期 / 結束日期 | 2015-02-17 / 2015-02-23 |
|---|
取樣方法
Data were collected using line transect sampling methodology (Buckland et al. 2001).
| 研究範圍 | The Argentine continental shelf extends between the coast of Argentina and the continental slope, with a surface estimated of 1,000,000 km2 and depths less than 100 m in most of its extension (Fig. X). The continental shelf is dominated by two marine currents: the Malvinas Current and Brazil currents. The Malvinas current is a cold and rich in nutrients current that flows north along the continental slope of Argentina up to 38◦ S. The Brazil current is a warm and poor in nutrients current that enters the Argentine Sea from the north, along the slope, and moves south to meet Malvinas current. The collision of these two currents, known as the Brazil/Malvinas Confluence, is a transition area whose location varies seasonally between 30 and 46º S. |
|---|---|
| 品質控管 | During the census, all the individuals were identified at the lowest possible taxonomic level (species or genus) using reference guides of marine mammals (Folkens et al. 2002, Shirihai & Jarrett 2002, Shirihai et al. 2006, Bastida & Rodriguez 2010, Jefferson et al. 2011). All the scientific names of marine mammals were validated by matching them against World Register of Marine Species database (WoRMS, http://www.marinespecies.org/). The latitude and longitude of sightings were plotted on a GIS software to detect the outliers, which were corrected following the course of the ship. |
方法步驟描述:
- In the Coriolis II mission, one observer, in the roof of the wheelhouse, recorded all the marine mammals in a range of 300 meters in the side of the boat with better visibility using 7x50 binoculars. A screen connected to pilot’s cabin, shown in real time: ship position, ship speed and direction, wind speed and direction, latitude, and longitude. The census was conducted continuously during daylight hours (7-21 hours) when the ship was sailing at a relatively constant velocity of 10 knots. Species, number of individuals, behavior, sea state, ship speed and direction, wind speed and direction were recorded, and each observation was automatically recorded the position (latitude and longitude), date and time of day. In the other censuses, the marine mammals sightings were recorded on a portable handheld computer with integrated GPS (Trimble Juno ST), using the free software CyberTracker (CyberTracker Software (Pty) Ltd Reg. no. 97/01908/07, http://www.cybertracker.co.za). Surveys were conducted daily during daylight hours (~ 12 hrs) at a mean vessel speed of 10 knots. During the surveys, two observers collected the data from both sides of the vessel, through naked eye scans supplemented by use of 7x50 binoculars with internal compass and reticle. A third observer assisted in the scans and recorded observations. Observers switched between the three positions at 2 hour intervals. Data recorded for each sighting included GPS position, date and time, sighting distance, sighting angle, species, group size and composition. Vessel speed, air temperature, wind speed and direction, Beaufort Sea State (BSS), cloud cover and visibility were recorded at the start of each day and updated whenever they changed.
引用文獻
- Buckland ST, Anderson DR, Burnham KP, Laake JL, Borchers DL & Thomas L (2001) Introduction to distance sampling: estimating abundance of biological populations. Oxford University Press, Oxford. 432pp ISBN 978-0-19-850927-8
- Bastida R & Rodríguez D (2010) Mamíferos Marinos de la Patagonia y Antártida. Vazquez Mazzini Editores, Buenos Aires. 207pp. ISBN 978-9879-132-203
- Jefferson TA, Webber MA & Pitman RL (2011) Marine mammals of the world: a comprehensive guide to their identification. Academic Press.
- Shirihai H & Jarrett B (2002) The complete guide to Antarctic wildlife: birds and marine mammals of the Antarctic continent and the Southern Ocean. G. M. Kirwan (Ed.). Princeton University Press.
- Folkens P, Reeves A, et al. (2002) Guide to marine mammals of the world. National Audubon Society. 527 pp.
- Shirihai H, Jarrett B, & Kirwan GM (2006) Whales, dolphins, and other marine mammals of the world. Princeton University Press.
額外的詮釋資料
marine, harvested by iOBIS
| 替代的識別碼 | 79e731ed-fe9b-4d50-93f7-ab1f01636385 |
|---|---|
| http://arobis.cenpat-conicet.gob.ar:8081/resource?r=arobis-cenpat-cadic-mammalobs |