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Bahamas Marine Mammal Research Organisation Opportunistic Sightings

Dataset homepage

Citation

Dunn, C. 2013. Bahamas Marine Mammal Research Organisation Opportunistic Sightings. Data downloaded from OBIS-SEAMAP (http://seamap.env.duke.edu/dataset/329) on yyyy-mm-dd. https://doi.org/10.15468/gecyyy accessed via GBIF.org on 2023-05-31.

Description

Original provider: Bahamas Marine Mammal Research Organisation Dataset credits: Bahamas Marine Mammal Research Organisation Abstract: BMMRO has been conducting a long-term study documenting the occurrence, distribution, and abundance of marine mammals around the islands of The Bahamas since 1991. Currently based in Sandy Point on Great Abaco Island, this project provides the only comprehensive documentation of marine mammal fauna in this part of the world.

The dataset presented here includes only marine mammal sightings, and other sea turtle sightings and marine mammal strandings and sightings are included in separate datasets in OBIS-SEAMAP. The dataset presented here is a subset of marine mammal sightings between 1988 and 2011, including sightings reported from the public. The dataset also is a subset of BMMRO vessel encounters with marine mammals between 1991 and 2011, comprising 20 different species, with the Atlantic bottlenose dolphin representing 60% of all encounters. The entire dataset includes stranding records between 1944 and 2011. In addition, the entire dataset includes sightings of turtles comprising 3 different species between 1991 and 2011.

A sighting is when our vessel was unable to close in on the group of animals while an encounter is when closing was successful and photographs / video recording of the animals were obtained. The dataset includes off-transect sightings and encounters (opportunistic). Supplemental information: Please use this dataset along with off-transect tracklines. Note that the original ship location data were recorded every minute. Tracklines up to 2006 were constructed using locations every five minutes to reduce the data size; tracklines constructed for 2006-2011 used data recorded every minute. Tracklines that intersected land were excluded. On-transect sightings and encounters are provided in a different dataset.

8/15/2011: This dataset was updated to include data collected from 2006 to 2008. Data from 2006-2008 did not include group size estimates and "1" was used to be conservative. Effort transects are only available for 3/11/1997-10/1/2008.

06/12/2013: This dataset was updated to include group size estimate data collected from 2006-2008 and sightings/effort data for 2008-2011. When records did not include group size estimates or time, "1" was used to be conservative, and 00:00:00 was used, respectively.

8/8/2013: Effort tracklines that crossed land were excluded and updated, as well as records that had incorrect time values. Shapefile and csv files were updated.

Purpose

Not available

Sampling Description

Study Extent

NA

Sampling

NA

Method steps

  1. NA

Additional info

marine, harvested by iOBIS

Taxonomic Coverages

Scientific names are based on the Integrated Taxonomic Information System (ITIS).
  1. Tursiops truncatus
    common name: Common Bottlenose Dolphin rank: species
  2. Tursiops truncatus
    common name: Common Bottlenose Dolphin rank: species
  3. Stenella frontalis
    common name: Atlantic Spotted Dolphin rank: species
  4. Mesoplodon densirostris
    common name: Blainville's Beaked Whale rank: species
  5. Ziphius cavirostris
    common name: Cuvier's Beaked Whale rank: species
  6. Kogia sima
    common name: Dwarf Sperm Whale rank: species
  7. Pseudorca crassidens
    common name: False Killer Whale rank: species
  8. Balaenoptera physalus
    common name: Fin Whale rank: species
  9. Lagenodelphis hosei
    common name: Fraser's Dolphin rank: species
  10. Mesoplodon europaeus
    common name: Gervais' Beaked Whale rank: species
  11. Megaptera novaeangliae
    common name: Humpback Whale rank: species
  12. Orcinus orca
    common name: Killer Whale rank: species
  13. Peponocephala electra
    common name: Melon-headed Whale rank: species
  14. Mesoplodon
    common name: beaked whales rank: genus
  15. Balaenoptera acutorostrata
    common name: Minke Whale rank: species
  16. Stenella attenuata
    common name: Pantropical Spotted Dolphin rank: species
  17. Feresa attenuata
    common name: Pygmy Killer Whale rank: species
  18. Kogia breviceps
    common name: Pygmy Sperm Whale rank: species
  19. Grampus griseus
    common name: Risso's Dolphin rank: species
  20. Steno bredanensis
    common name: Rough-toothed Dolphin rank: species
  21. Globicephala macrorhynchus
    common name: Short-finned Pilot Whale rank: species
  22. Physeter macrocephalus
    common name: Sperm Whale rank: species
  23. Stenella
    common name: spinner dolphins rank: genus
  24. Stenella coeruleoalba
    common name: Striped Dolphin rank: species
  25. Hyperoodontidae
    rank: family
  26. Delphinidae
    common name: dolphins rank: family
  27. Kogia
    common name: pygmy sperm whales rank: genus
  28. Cetacea
    common name: cetaceans rank: order
  29. Cetacea
    common name: cetaceans rank: order
  30. Caniformia
    common name: pinnipeds rank: suborder
  31. Cetacea
    common name: cetaceans rank: order
  32. Trichechus manatus
    common name: West Indian Manatee rank: species

Geographic Coverages

Oceans

Bibliographic Citations

Contacts

Charlotte Dunn
originator
position: Primary contact
Charlotte Dunn
email: None
OBIS-SEAMAP
metadata author
Marine Geospatial Ecology Lab, Duke University
A328 LSRC building
Durham
27708
NC
US
email: seamap-contact@duke.edu
homepage: http://seamap.env.duke.edu
OBIS-SEAMAP
distributor
Marine Geospatial Ecology Lab, Duke University
A328 LSRC building
Durham
27708
NC
US
email: seamap-contact@duke.edu
homepage: http://seamap.env.duke.edu
Charlotte Dunn
owner
position: Primary contact
Charlotte Dunn
email: None
Charlotte Dunn
administrative point of contact
position: Primary contact
Charlotte Dunn
email: None
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