Citation:

arctic649

Name: (Table 3) Narwhal (Monodon monoceros) sightings, group sizes and surface estimates in the Canadian High Arctic 2002-2004
Published: 2010
License: https://creativecommons.org/licenses/by/3.0/

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Coverage:

Median Latitude: 72.551429 * Median Longitude: -85.018571 * South-bound Latitude: 69.980000 * West-bound Longitude: -96.900000 * North-bound Latitude: 74.400000 * East-bound Longitude: -71.700000

Date/Time Start: 2002-08-01T00:00:00 * Date/Time End: 2004-08-01T00:00:00

Event(s):

Admirality_Inlet * Latitude: 73.140000 * Longitude: -85.760000 * Location: Admiralty Inlet, Baffin Island, Canada * Method/Device: Whale watching (WHW)

Baffin_coast * Latitude: 71.700000 * Longitude: -71.700000 * Location: Baffin Bay * Method/Device: Whale watching (WHW)

BarrowSt_LancasterS * Latitude: 74.400000 * Longitude: -96.900000 * Location: Northwestern Passages * Method/Device: Whale watching (WHW)

Comment:

The covered area given for each stratum is calculated from a strip width equal to the maximum distance at which a sighting was

reported and multiplied by the average probability of detection over that strip, g(x). The estimated coverage is calculated from a strip width equal to the maximum distance at which any sighting was reported in each year, minus the left truncation distance. The strip is then multiplied by the linear survey effort (km) and the average probability of detection over that stratum, g(x), to give the approximate survey coverage.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Comment
1	Event label	Event
2	DATE/TIME	Date/Time			Geocode
3	Area/locality	Area		Richard, Pierre R	w = weighted group sizes
4	Area	Area	km²	Richard, Pierre R	total
5	Area	Area	km²	Richard, Pierre R	covered area for each stratum
6	Monodon monoceros	M. monoceros	#	Richard, Pierre R	sightings with distance
7	Monodon monoceros, group size	M. monoceros group size		Richard, Pierre R
8	Coefficient	Coeff		Richard, Pierre R	CV; group size
9	Probability	Prob		Richard, Pierre R	of detection over distances g(x)
10	Coefficient	Coeff		Richard, Pierre R	CV; detection probability over distances
11	Area	Area	km²	Richard, Pierre R	estimated survey coverage
12	Probability	Prob		Richard, Pierre R	of detection at track line p(0)
13	Coefficient	Coeff		Richard, Pierre R	CV; detection probability at track line
14	Monodon monoceros	M. monoceros	#	Richard, Pierre R	surface estimate
15	Coefficient	Coeff		Richard, Pierre R	CV; surface estimate

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Size:

169 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 Event	2 Date/Time	3 Area (w = weighted group sizes)	4 Area [km²] (total)	5 Area [km²] (covered area for each stratum)	6 M. monoceros [#] (sightings with distance)	7 M. monoceros group size	8 Coeff (CV; group size)	9 Prob (of detection over distances g(x))	10 Coeff (CV; detection probability ove...)	11 Area [km²] (estimated survey coverage)	12 Prob (of detection at track line p(0))	13 Coeff (CV; detection probability at ...)	14 M. monoceros [#] (surface estimate)	15 Coeff (CV; surface estimate)
Eclipse_S	2002-08	Eclipse Sound	5914	359	48	2.3	0.10	0.27	0.15	98	0.92	0.04	7397	1.30
Eclipse_S	2004-08	Eclipse Sound	2702	1131	144	2.6	0.29	0.20	0.06	229	0.88	0.03	5383	0.43
Eclipse_S	2002-08	Eclipse Fiords	1810	762	3	8.0	0.37	0.27	0.15	207	0.92	0.04	180	0.87
Eclipse_S	2004-08	Eclipse Fiords (w)	1194	1358	13	1.8	<0.10	0.20	0.06	274	0.88	0.03	187	1.15
Prince_Regent	2002-08	Prince Regent Inlet	30628	2092	94	1.8	0.07	0.40	0.10	831	0.87	0.05	7429	0.71
Gulf_Boothia	2002-08	Gulf of Boothia	56567	1783	10	3.0	0.13	0.40	0.10	708	0.87	0.05	2407	0.30
Admirality_Inlet	2003-08	Admiralty Inlet	8596	629	3	5.0	0.31	0.31	0.29	194	0.84	0.03	1272	0.68
Admirality_Inlet	2003-08	Admiralty Fiords (w)	868	136	5	1.8	0.27	0.31	0.29	42	0.84	0.03	584	0.52
Admirality_Inlet	2004-08	Admiralty Center	3998	1218	3	4.6	0.67	0.20	0.06	240	0.88	0.03	448	0.84
Admirality_Inlet	2004-08	Admiralty North	2392	395	1	2.0	0.00	0.20	0.06	78	0.88	0.03	94	1.01
Baffin_coast	2003-08	Baffin Coast Fiords (w)	11204	3282	181	1.5	0.21	0.31	0.29	1013	0.84	0.03	3487	0.27
Navy_Milne_Inlet	2004-08	Navy Board - Milne Inlet	2794	1286	55	2.1	0.17	0.20	0.06	260	0.88	0.03	1107	0.63
BarrowSt_LancasterS	2004-08	Barrow Strait-Lancaster Sound	21599	3669	11	1.4	0.96	0.20	0.06	723	0.88	0.03	963	0.46