Описание
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)
Записи данных
Данные этого occurrence ресурса были опубликованы в виде Darwin Core Archive (DwC-A), который является стандартным форматом для обмена данными о биоразнообразии в виде набора из одной или нескольких таблиц. Основная таблица данных содержит 652 записей.
Данный экземпляр IPT архивирует данные и таким образом служит хранилищем данных. Данные и метаданные ресурсов доступны для скачивания в разделе Загрузки. В таблице версий перечислены другие версии ресурса, которые были доступны публично, что позволяет отслеживать изменения, внесенные в ресурс с течением времени.
Версии
В таблице ниже указаны только опубликованные версии ресурса, которые доступны для свободного скачивания.
Как оформить ссылку
Исследователи должны дать ссылку на эту работу следующим образом:
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.
Права
Исследователи должны соблюдать следующие права:
Публикующей организацией и владельцем прав на данную работу является 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.
Регистрация в GBIF
Этот ресурс был зарегистрирован в GBIF, ему был присвоен следующий UUID: e7742aab-883c-49ad-bb12-ddb6dff6129e. OBIS-SEAMAP отвечает за публикацию этого ресурса, и зарегистрирован в GBIF как издатель данных при оподдержке Ocean Biodiversity Information System.
Ключевые слова
Occurrence,Vessels,Sightings,Cetaceans,Whales,Dolphins,Delphinus,Population,Abundance,Survey,Census,PODS; Observation; Occurrence
Внешние данные
Ресурс также доступен в других форматах
| 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 |
Контакты
- Owner ●
- Originator ●
- Point Of Contact
- Metadata Provider ●
- Distributor
Географический охват
Pacific,California Current,California,Mexico,Gulf of California
| Ограничивающие координаты | Юг Запад [21,034, -130,643], Север Восток [41,938, -106,969] |
|---|
Таксономический охват
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 |
Временной охват
| Дата начала / Дата окончания | 1993-07-28 / 1993-11-02 |
|---|
Данные проекта
Описание отсутсвует
| Название | SWFSC Marine Mammal Survey, PODS 1993, Cruise 1508 |
|---|---|
| Финансирование | NA |
Исполнители проекта:
- Owner
Методы сбора
NA
| Охват исследования | NA |
|---|
Описание этапа методики:
- NA
Данные коллекции
| Название коллекции | zd_213 |
|---|---|
| Идентификатор коллекции | zd_213 |
| Идентификатор родительской коллекции | OBIS-SEAMAP |
Дополнительные метаданные
marine, harvested by iOBIS
| Цель | 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. |
|---|---|
| Альтернативные идентификаторы | e7742aab-883c-49ad-bb12-ddb6dff6129e |
| http://ipt.env.duke.edu/resource?r=zd_213 |