Heide-Jørgensen, Mads Peter; Laidre, Kristin L; Burt, M L; Borchers, D L; Marques, Tiago A; Hansen, R G; Rasmussen, M; Fossette, S (2010): (Table 5) Individual and group abundance and density of narwhals (Monodon monoceros) in east and west Greenland waters [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.811014, In supplement to: Heide-Jørgensen, MP et al. (2010): Abundance of narwhals (Monodon monoceros) on the hunting grounds in Greenland. Journal of Mammalogy, 91(5), 1135-1151, https://doi.org/10.1644/09-MAMM-A-198.1
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Coverage:
Median Latitude: 69.424308 * Median Longitude: -42.085525 * South-bound Latitude: 65.731400 * West-bound Longitude: -68.285600 * North-bound Latitude: 77.439600 * East-bound Longitude: -24.724600
Date/Time Start: 2007-08-01T00:00:00 * Date/Time End: 2008-08-01T00:00:00
Event(s):
Blosseville_Coast * Latitude: 69.110400 * Longitude: -24.819700 * Date/Time: 2008-08-01T00:00:00 * Location: East Greenland * Method/Device: Whale watching (WHW)
Inglefield_Bredn * Latitude: 77.439600 * Longitude: -68.285600 * Date/Time: 2007-08-01T00:00:00 * Location: West Greenland * Method/Device: Whale watching (WHW)
KangerlussuaqFjordEast * Latitude: 68.371700 * Longitude: -32.225800 * Date/Time: 2008-08-01T00:00:00 * Location: Kangerlussuaq/Sondrestrom, western Greenland * Method/Device: Whale watching (WHW)
Comment:
Abundance estimates from West Greenland March-April 2006 are corrected for availability with a(0) = 0.18 (CV = 0.04), and sightings from stratum 11 were included in the calculation of the detection function and mean group size only. Abundance estimates for Melville Bay and Inglefield Bredning in August 2007 are corrected for availability bias with a(0) = 0.21 (CV = 0.09). Abundance estimates for East Greenland in August 2008 are corrected for availability bias with a(0) = 0.21 (CV = 0.09). Sightings were truncated at 800 m. The encounter rate and density estimates for "All" strata include strata where no whales were detected. Number of sightings is after truncation, CV = coefficient of variation.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | Latitude of event | Latitude | ||||
| 3 | Longitude of event | Longitude | ||||
| 4 | Province | Province | Heide-Jørgensen, Mads Peter | |||
| 5 | Area/locality | Area | Heide-Jørgensen, Mads Peter | stratum | ||
| 6 | Area | Area | km2 | Heide-Jørgensen, Mads Peter | ||
| 7 | Number | No | Heide-Jørgensen, Mads Peter | of transects | ||
| 8 | Length of transect | Length | m | Heide-Jørgensen, Mads Peter | i.e. effort | |
| 9 | Number of observations | NOBS | # | Heide-Jørgensen, Mads Peter | unique sightings | |
| 10 | Encounter rate | Encounter r | #/km | Heide-Jørgensen, Mads Peter | of groups | |
| 11 | Coefficient | Coeff | Heide-Jørgensen, Mads Peter | CV for group encounter rate | ||
| 12 | Monodon monoceros, group size | M. monoceros group size | Heide-Jørgensen, Mads Peter | mean or expected | ||
| 13 | Coefficient | Coeff | Heide-Jørgensen, Mads Peter | CV for group size | ||
| 14 | Monodon monoceros, number of groups | M. monoceros no. of groups | # | Heide-Jørgensen, Mads Peter | ||
| 15 | Coefficient | Coeff | Heide-Jørgensen, Mads Peter | CV for no. of groups | ||
| 16 | Monodon monoceros, density of groups | M. monoceros group dens | #/km2 | Heide-Jørgensen, Mads Peter | ||
| 17 | Coefficient | Coeff | Heide-Jørgensen, Mads Peter | CV for density of groups | ||
| 18 | Monodon monoceros | M. monoceros | # | Heide-Jørgensen, Mads Peter | uncorrected for availability bias | |
| 19 | Coefficient | Coeff | Heide-Jørgensen, Mads Peter | CV for uncorrected whale abundance | ||
| 20 | Monodon monoceros, density | M. monoceros dens | #/km2 | Heide-Jørgensen, Mads Peter | uncorrected abundance/km**2 | |
| 21 | Coefficient | Coeff | Heide-Jørgensen, Mads Peter | CV for whale density | ||
| 22 | Monodon monoceros | M. monoceros | # | Heide-Jørgensen, Mads Peter | corrected for availability bias | |
| 23 | Coefficient | Coeff | Heide-Jørgensen, Mads Peter | CV for corrected whale abundance |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
634 data points