説明
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.
データ レコード
この オカレンス（観察データと標本) リソース内のデータは、1 つまたは複数のデータ テーブルとして生物多様性データを共有するための標準化された形式であるダーウィン コア アーカイブ (DwC-A) として公開されています。 コア データ テーブルには、389 レコードが含まれています。
この IPT はデータをアーカイブし、データ リポジトリとして機能します。データとリソースのメタデータは、 ダウンロード セクションからダウンロードできます。 バージョン テーブルから公開可能な他のバージョンを閲覧でき、リソースに加えられた変更を知ることができます。
バージョン
次の表は、公にアクセス可能な公開バージョンのリソースのみ表示しています。
引用方法
研究者はこの研究内容を以下のように引用する必要があります。:
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
権利
研究者は権利に関する下記ステートメントを尊重する必要があります。:
パブリッシャーとライセンス保持者権利者は 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登録
このリソースをはGBIF と登録されており GBIF UUID: 79e731ed-fe9b-4d50-93f7-ab1f01636385が割り当てられています。 Ocean Biodiversity Information System によって承認されたデータ パブリッシャーとして GBIF に登録されているArOBIS Centro Nacional Patagónico が、このリソースをパブリッシュしました。
キーワード
Occurrence; Sightings; Vessels; Marine Mammals; Pinnipeds; Whales; Dolphins; Surveys; Census; Southwest Atlantic Ocean; Argentine Continental Shelf; Argentine Sea; Observation
連絡先
- メタデータ提供者 ●
- 最初のデータ採集者
- Postdoctoral fellow
- Bv. Almirante Brown 2915
- +54 280 4883184 (int. 1242)
- 最初のデータ採集者
- Researcher
- Bv. Almirante Brown 2915
- +54 280 4883184 (int. 1242)
- 最初のデータ採集者
- Researcher
- Bernardo Houssay 200
- +54 2901 422310
- 最初のデータ採集者
- Researcher
- Bernardo Houssay 200
- +54 2901 422310
- 最初のデータ採集者
- Postdoctoral fellow
- Bernardo Houssay 200
- +54 2901 422310
- 最初のデータ採集者
- Professional supporting to research
- Bernardo Houssay 200
- +542901422310
- メタデータ提供者 ●
- プログラマー ●
- 連絡先
- Professional supporting to research
- Bv. Almirante Brown 2915
- +54 280 4883184 (int. 1202)
- プログラマー
- Coordinator of the Information Management Unit
- Bv. Almirante Brown 2915
- +54 280 4883184 (int. 1260)
地理的範囲
Argentine continental shelf (Southwest Atlantic Ocean)
| 座標（緯度経度） | 南 西 [-58, -70], 北 東 [-37, -55] |
|---|
生物分類学的範囲
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) |
時間的範囲
| 開始日 / 終了日 | 2009-11-29 / 2009-12-16 |
|---|
| 開始日 / 終了日 | 2012-02-13 / 2012-03-24 |
|---|
| 開始日 / 終了日 | 2012-03-27 / 2012-04-14 |
|---|
| 開始日 / 終了日 | 2013-01-25 / 2013-02-19 |
|---|
| 開始日 / 終了日 | 2014-01-30 / 2014-02-16 |
|---|
| 開始日 / 終了日 | 2014-02-12 / 2014-03-18 |
|---|
| 開始日 / 終了日 | 2014-03-29 / 2014-04-04 |
|---|
| 開始日 / 終了日 | 2014-11-04 / 2014-11-27 |
|---|
| 開始日 / 終了日 | 2015-02-17 / 2015-02-23 |
|---|
収集方法
Data were collected using line transect sampling methodology (Buckland et al. 2001).
| Study Extent | 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. |
|---|---|
| Quality Control | 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. |
Method step description:
- 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.
書誌情報の引用
- 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.
追加のメタデータ
marine, harvested by iOBIS
| 代替識別子 | 79e731ed-fe9b-4d50-93f7-ab1f01636385 |
|---|---|
| http://arobis.cenpat-conicet.gob.ar:8081/resource?r=arobis-cenpat-cadic-mammalobs |