說明
Original provider: Sea Mammal Research Unit, University of St. Andrews Dataset credits: Sea Mammal Research Unit, University of St. Andrews Abstract: The European Union (EU) Habitats Directive requires Member States to monitor and maintain at favourable conservation status those species identified to be in need of protection, including all cetaceans. In July 2005 we surveyed the entire EU Atlantic continental shelf to generate robust estimates of abundance for harbour porpoise and other cetacean species. The survey used line transect sampling methods and purpose built data collection equipment designed to minimise bias in estimates of abundance. Shipboard transects covered 19,725 km in sea conditions <= Beaufort 4 in an area of 1,005,743 km2. Aerial transects covered 15,802 km in good/moderate conditions (<= Beaufort 3) in an area of 364,371 km2. Thirteen cetacean species were recorded; abundance was estimated for harbour porpoise (375,358; CV = 0.197), bottlenose dolphin (16,485; CV = 0.422), white-beaked dolphin (16,536; CV = 0.303), short-beaked common dolphin (56,221; CV = 0.234) and minke whale (18,958; CV = 0.347). Abundance in 2005 was similar to that estimated in July 1994 for harbour porpoise, white-beaked dolphin and minke whale in a comparable area. However, model-based density surfaces showed a marked difference in harbour porpoise distribution between 1994 and 2005. Our results allow EU Member States to discharge their responsibilities under the Habitats Directive and inform other international organisations concerning the assessment of conservation status of cetaceans and the impact of bycatch at a large spatial scale. The lack of evidence for a change in harbour porpoise abundance in EU waters as a whole does not exclude the possibility of an impact of bycatch in some areas. Monitoring bycatch and estimation of abundance continue to be essential.
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 1,010 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。:
Lacey, C. 2014. SCANS II cetacean sightings on primary platform of vessel surveys 2005. Version 1.0.0. Dataset published in OBIS-SEAMAP. https://doi.org/10.82144/d934db54.
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 OBIS-SEAMAP。 This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC 4.0) License.
GBIF 註冊
此資源已向GBIF註冊，並指定以下之GBIF UUID: 32920bfb-a28c-4cfd-a30f-b78eb1320d81。 OBIS-SEAMAP 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; Observation; Marine Biology; Visual sighting; Marine Animal Survey; Marine mammals; Sea turtles; Visual Sighting; Vessel; Occurrence
外部資料
此資源尚有其他格式可用
| OBIS-SEAMAP Dataset Page | https://seamap.env.duke.edu/dataset/1150 UTF-8 Interactive map |
|---|---|
| FGDC Metadata | https://seamap.env.duke.edu/dataset/1150/fgdc UTF-8 XML |
| EML Metadata | https://seamap.env.duke.edu/dataset/1150/eml UTF-8 XML |
聯絡資訊
- 擁有者 ●
- 出處 ●
- 連絡人
- Primary contact
- 元數據提供者 ●
- 散布者
- A328 LSRC building
地理涵蓋範圍
Oceans,North Atlantic Ocean,European Atlantic shelf waters
| 界定座標範圍 | 緯度南界 經度西界 [35.96, -11.93], 緯度北界 經度東界 [61.99, 12.6] |
|---|
分類群涵蓋範圍
Scientific names are based on the Integrated Taxonomic Information System (ITIS).
| Subclass | Elasmobranchii (Cartilaginous fishes) |
|---|---|
| Order | Cetacea (Cetaceans) |
| Suborder | Caniformia (Pinnipeds), Odontoceti (Toothed whales) |
| Family | Delphinidae (Dolphins) |
| Genus | Lagenorhynchus (White-beaked dolphins) |
| Species | Balaenoptera acutorostrata (Common minke whale), Balaenoptera physalus (Fin whale), Cetorhinus maximus (Basking shark), Delphinus delphis (Short-beaked common dolphin), Dermochelys coriacea (Leatherback sea turtle), Globicephala melas (Long-finned pilot whale), Grampus griseus (Risso's dolphin), Halichoerus grypus (Atlantic gray seal), Lagenorhynchus acutus (Atlantic white-sided dolphin), Lagenorhynchus albirostris (White-beaked dolphin), Mola mola (Ocean sunfish), Orcinus orca (Killer whale), Phoca vitulina (Harbor seal), Phocoena phocoena (Harbor porpoise), Prionace glauca (Blue shark), Stenella coeruleoalba (Striped dolphin), Tursiops truncatus (Common bottlenose dolphin), Ziphius cavirostris (Cuvier's beaked whale) |
時間涵蓋範圍
| 起始日期 / 結束日期 | 2005-06-29 / 2005-07-28 |
|---|
計畫資料
無相關描述
| 計畫名稱 | SCANS II cetacean sightings on primary platform of vessel surveys 2005 |
|---|---|
| 經費來源 | NA |
參與計畫的人員:
- 擁有者
取樣方法
NA
| 研究範圍 | NA |
|---|
方法步驟描述:
- NA
收藏資料
| 蒐藏名稱 | zd_1150 |
|---|---|
| 蒐藏編號 | zd_1150 |
| 上層採集品識別碼 | OBIS-SEAMAP |
引用文獻
- Hammond, P.S., Macleod, K., Berggren, P., Borchers, D.L., Burt, L., Cañadas, A., Desportes, G., Donovan, G.P., Gilles, A., Gillespie, D., et al. 2013. Cetacean abundance and distribution in European Atlantic shelf waters to inform conservation and management. Biological Conservation: 164, 107–122.
額外的詮釋資料
marine, harvested by iOBIS. Surveys from seven different vessels were merged. Each vessel contained two sightings platforms running concurrently – primary and tracker. This dataset includes sightings from the primary platform. Sightings from the tracker platform are registered in SCANS II cetacean sightings on tracker platform of vessel surveys 2005. Effort or vessel tracks for these surveys are provided with this dataset. Survey conditions such as sea state, glare, swell, wind are found in the effort data. In the primary platform, normal binoculars were used and distance and angle were estimated by observer on the vessel with raditional bearing board and range finder-stick.