Description
Original provider: NOAA Southwest Fisheries Science Center (SWFSC) Dataset credits: Marine Mammal and Turtle Division, Southwest Fisheries Science Center, NMFS, NOAA Abstract: The Cetacean Acoustic Detection and Dive Interval Studies (CADDIS) survey was conducted by the NOAA Southwest Fisheries Science Center primarily in the southern Gulf of California aboard NOAA research ship McArthur from early September to early November 1995 for a total of approximately 6,000 kilometers surveyed. The project focused on two potential approaches to improve abundance estimates of long-diving whales: (1) acoustic detection of diving animals, and (2) collecting dive interval data on those species to serve as a basis for a model-based abundance correction factor. 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. Purpose: The primary purpose of this research was to learn how to better estimate the abundance of long-diving whales during ship line-transect surveys. These whale species, including beaked whales and dwarf and pygmy sperm whales, dive for such long periods of time that there is a high probability that they will never surface within the visual range of observers searching from a moving survey vessel with 25X binoculars.
Data Records
The data in this occurrence resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 602 records.
This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.
Versions
The table below shows only published versions of the resource that are publicly accessible.
How to cite
Researchers should cite this work as follows:
Barlow, J. 2004. SWFSC Marine Mammal Survey, CADDIS 1995, Cruise 1601. Data downloaded from OBIS-SEAMAP (http://seamap.env.duke.edu/dataset/217) on yyyy-mm-dd.
Rights
Researchers should respect the following rights statement:
The publisher and rights holder of this work is 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 Registration
This resource has been registered with GBIF, and assigned the following GBIF UUID: e3f878c9-d44d-419b-8b4d-4d4a755d8159. OBIS-SEAMAP publishes this resource, and is itself registered in GBIF as a data publisher endorsed by Ocean Biodiversity Information System.
Keywords
Occurrence,Vessels,Sightings,Whales,Diving,Dive,Population,Abundance,Survey,Census; Observation; Occurrence
External data
The resource data is also available in other formats
| OBIS-SEAMAP Dataset Page | https://seamap.env.duke.edu/dataset/217 UTF-8 Interactive map |
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| FGDC Metadata | https://seamap.env.duke.edu/dataset/217/xml UTF-8 XML |
Contacts
- Owner ●
- Originator ●
- Point Of Contact
- Metadata Provider ●
- Distributor
Geographic Coverage
Gulf of California,Pacific
| Bounding Coordinates | South West [20.5, -117.39], North East [32.24, -105.3] |
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Taxonomic Coverage
Scientific names are based on the Integrated Taxonomic Information System (ITIS).
| Order | Cetacea (cetaceans), Cetacea (cetaceans), Cetacea (cetaceans), Cetacea (cetaceans), Cetacea (cetaceans) |
|---|---|
| Family | Cheloniidae (Sea Turtles), Cheloniidae (Sea Turtles) |
| Genus | Balaenoptera (baleen whales), Ziphius (goose-beaked whales), Delphinus (common dolphins), Kogia (pygmy sperm whales), Mesoplodon (beaked whales), Balaenoptera (baleen whales), Mesoplodon (beaked whales) |
| Species | Berardius bairdii (Baird's Beaked Whale), Delphinus capensis (Long-beaked Common Dolphin), Balaenoptera musculus (Blue Whale), Tursiops truncatus (Common Bottlenose Dolphin), Balaenoptera edeni (Eden's whale), Ziphius cavirostris (Cuvier's Beaked Whale), Kogia sima (Dwarf Sperm Whale), Balaenoptera physalus (Fin Whale), Megaptera novaeangliae (Humpback Whale), Orcinus orca (Killer Whale), Caretta caretta (Loggerhead Sea Turtle), Delphinus delphis (Short-beaked Common Dolphin), Stenella attenuata (Pantropical Spotted Dolphin), Lepidochelys olivacea (Olive Ridley), Lagenorhynchus obliquidens (Pacific White-sided Dolphin), Mesoplodon peruvianus (Peruvian beaked whale), Grampus griseus (Risso's Dolphin), Steno bredanensis (Rough-toothed Dolphin), Balaenoptera borealis (Sei Whale), Globicephala macrorhynchus (Short-finned Pilot Whale), Physeter macrocephalus (Sperm Whale), Stenella coeruleoalba (Striped Dolphin), Stenella attenuata (Pantropical Spotted Dolphin) |
| Subspecies | Stenella longirostris orientalis |
Temporal Coverage
| Start Date / End Date | 1995-09-06 / 1995-11-07 |
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Project Data
No Description available
| Title | SWFSC Marine Mammal Survey, CADDIS 1995, Cruise 1601 |
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| Funding | NA |
The personnel involved in the project:
- Owner
Sampling Methods
NA
| Study Extent | NA |
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Method step description:
- NA
Collection Data
| Collection Name | zd_217 |
|---|---|
| Collection Identifier | zd_217 |
| Parent Collection Identifier | OBIS-SEAMAP |
Additional Metadata
marine, harvested by iOBIS
| Purpose | The primary purpose of this research was to learn how to better estimate the abundance of long-diving whales during ship line-transect surveys. These whale species, including beaked whales and dwarf and pygmy sperm whales, dive for such long periods of time that there is a high probability that they will never surface within the visual range of observers searching from a moving survey vessel with 25X binoculars. |
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| Alternative Identifiers | e3f878c9-d44d-419b-8b4d-4d4a755d8159 |
| http://ipt.env.duke.edu/resource?r=zd_217 |