說明
Original provider: NOAA Southwest Fisheries Science Center (SWFSC) Dataset credits: NOAA Southwest Fisheries Science Center (SWFSC) Abstract: This 1993 line-transect survey was designed to make abundance estimates of the northern stock of common dolphin, Delphinus delphis, in the eastern Pacific. This stock of dolphin is taken in the tropical tuna fishery. The index of relative abundance for this stock, computed from sightings on tuna vessels, has declined substantially in the last decade. However, because tuna vessels cover only the southern portion of the stock's range, the declines in the index may be due to a northward shift in distribution, rather than an actual decline in abundance. The 1993 survey was designed to produce the first range-wide estimates of abundance for the northern common dolphin and its recently described congener, Delphinus capensis. This survey was conducted by the NOAA Southwest Fisheries Science Center aboard NOAA Ships McArthur and David Starr Jordan for a combined total of approximately 32,000 kilometers surveyed from late July to early November 1993. This dataset provides the time-date and geographical coordinates, by species/stock, of all cetaceans detected during the survey, as well as the daily and intra-daily start and end points of the line-transect survey by the NOAA Ship McArthur. Purpose: The primary objective of the cruise was to survey the area inhabited by the northern stock of common dolphins, and to make an estimate of its absolute abundance in order to assess the impact of the dolphins killed by the United States and international yellowfin tuna purse seine fleet in the eastern tropical Pacific. Supplemental information: [2021-04-12] Updated with additional attributes. SWFSC MMTD Cruise Number: 1508 Perpendicular distance will be released upon permission by the contributor. Please contact the contributor if needed. Attribute descriptions for effort data: dist: Length of the segment (km) Mode: Effort mode type (C = closing mode; P = passing mode)
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 652 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。:
Gerrodette, T. 2004. SWFSC Marine Mammal Survey, PODS 1993, Cruise 1508. Data downloaded from OBIS-SEAMAP (http://seamap.env.duke.edu/dataset/213) on yyyy-mm-dd.
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。 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: e7742aab-883c-49ad-bb12-ddb6dff6129e。 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,Vessels,Sightings,Cetaceans,Whales,Dolphins,Delphinus,Population,Abundance,Survey,Census,PODS; Observation; 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/213 UTF-8 Interactive map |
|---|---|
| FGDC Metadata | https://seamap.env.duke.edu/dataset/213/xml UTF-8 XML |
聯絡資訊
- 擁有者 ●
- 出處 ●
- 連絡人
- 元數據提供者 ●
- 散布者
地理涵蓋範圍
Pacific,California Current,California,Mexico,Gulf of California
| 界定座標範圍 | 緯度南界 經度西界 [21.034, -130.643], 緯度北界 經度東界 [41.938, -106.969] |
|---|
分類群涵蓋範圍
Scientific names are based on the Integrated Taxonomic Information System (ITIS).
| Order | Cetacea (cetaceans), Cetacea (cetaceans), Cetacea (cetaceans), Cetacea (cetaceans), Cetacea (cetaceans) |
|---|---|
| Suborder | Caniformia (pinnipeds) |
| Family | Hyperoodontidae, Phocidae (earless seals), Cheloniidae (Sea Turtles) |
| Genus | Delphinus (common dolphins), Mesoplodon (beaked whales), Balaenoptera (baleen whales), Kogia (pygmy sperm whales), Balaenoptera (baleen whales) |
| Species | Stenella coeruleoalba (Striped Dolphin), Steno bredanensis (Rough-toothed Dolphin), Delphinus capensis (Long-beaked Common Dolphin), Delphinus delphis (Short-beaked Common Dolphin), Tursiops truncatus (Common Bottlenose Dolphin), Stenella attenuata (Pantropical Spotted Dolphin), Grampus griseus (Risso's Dolphin), Lagenorhynchus obliquidens (Pacific White-sided Dolphin), Lissodelphis borealis (Northern Right Whale Dolphin), Globicephala macrorhynchus (Short-finned Pilot Whale), Orcinus orca (Killer Whale), Phocoena phocoena (Harbor Porpoise), Phocoenoides dalli (Dall's Porpoise), Physeter macrocephalus (Sperm Whale), Kogia breviceps (Pygmy Sperm Whale), Mesoplodon densirostris (Blainville's Beaked Whale), Ziphius cavirostris (Cuvier's Beaked Whale), Berardius bairdii (Baird's Beaked Whale), Balaenoptera acutorostrata (Minke Whale), Balaenoptera edeni (Eden's whale), Balaenoptera borealis (Sei Whale), Balaenoptera physalus (Fin Whale), Balaenoptera musculus (Blue Whale), Megaptera novaeangliae (Humpback Whale), Stenella attenuata (Pantropical Spotted Dolphin), Caretta caretta (Loggerhead Sea Turtle), Callorhinus ursinus (Northern Fur Seal), Lepidochelys olivacea (Olive Ridley), Mirounga angustirostris (Northern Elephant Seal), Zalophus californianus (California Sea Lion) |
| Subspecies | Stenella longirostris orientalis |
時間涵蓋範圍
| 起始日期 / 結束日期 | 1993-07-28 / 1993-11-02 |
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計畫資料
無相關描述
| 計畫名稱 | SWFSC Marine Mammal Survey, PODS 1993, Cruise 1508 |
|---|---|
| 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_213 |
|---|---|
| 蒐藏編號 | zd_213 |
| 上層採集品識別碼 | OBIS-SEAMAP |
額外的詮釋資料
marine, harvested by iOBIS
| 目的 | The primary objective of the cruise was to survey the area inhabited by the northern stock of common dolphins, and to make an estimate of its absolute abundance in order to assess the impact of the dolphins killed by the United States and international yellowfin tuna purse seine fleet in the eastern tropical Pacific. |
|---|---|
| 替代的識別碼 | e7742aab-883c-49ad-bb12-ddb6dff6129e |
| http://ipt.env.duke.edu/resource?r=zd_213 |