The Davis Strait - DCE - Nationalt Center for Miljø og Energi

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112 The West Greenland Arctic tern population had at least until 2001 an unfavourable conservation status and was decreasing due to excessive egg collecting. This activity was banned in 2001. It was therefore listed as Near Threatened (NT) on the national Greenland Red List, a listing which may be outdated now (Boertmann 2007). Black guillemot, Cepphus grylle This auk is the most widespread of the breeding colonial seabirds in the assessment area (Boertmann et al. 1996). There are colonies in most fjords, bays and coasts, and their numbers range from a few pairs to several hundreds (Fig. 4.7.1). The total breeding population within the assessment area is unknown, but numbers at least several thousand pairs. During the breeding time they primarily stay in coastal waters, but in winter they disperse over the shelf and are often found in waters with drift ice (Mosbech & Johnson 1999). Black guillemots are more or less migratory and birds from further north in Greenland move to the assessment area for the winter. During an aerial survey in 1999 a total of 12,000 black guillemots were estimated in the coastal zone between the southern tip of Greenland and Disko Bay (Fig. 4.7.12) (Merkel et al. 2002). The black guillemot population in Greenland has a favourable conservation status and is listed as Least Concern (LC) on the Greenland Red List (Boertmann 2007). Vulnerable concentrations occur mainly in the summer time near the breeding colonies. However, due to the wide dispersion of the colonies black guillemot sensitivity on a population level is relatively low. Thick-billed murre, Uria lomvia This auk is a relatively numerous breeder in the assessment area. However, the breeding sites are few and very localised: One colony in Nuuk and three in Maniitsoq (Fig. 4.7.1). The most recent surveys sum up to 15,100 indviduals present in the breeding colonies within the assessment area (GINR & AU unpubl. data).
Figure 4.7.12. Distribution and interpolated densities of black guillemot in Southwest Greenland based on aerial surveys in February/March 1999 (Merkel et al. 2002). Store Hellefiske banke Lille Hellefiske banke 54 W Fyllas banke Black guillemot Birds/ sq. km 0 0.1 - 10 Aasiat Sisimiut 10 - 100 100 - 300 50 m isobath Maniitsoq Kangaatsiaq Nuuk Paamiut In winter thick-billed murres from all over the North Atlantic congregate in the open water area and the population then is assessed at >1.5 million birds (Merkel et al. 2002, Boertmann et al. 2006), making it the most numerous seabird in the assessment area during winter (Fig. 4.7.13), except for the little auks, which potentially may occur in higher numbers. 48 W 0 50 100 150 200 Km Ivittuut Narsaq Qaqortoq 42 W Nanortalik 68 N 66 N 64 N 62 N 60 N 113
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THE DAVIS STRAIT A preliminary stra
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AU THE DAVIS STRAIT A preliminary s
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Contents Preface 5 Summary and conc
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Preface The Bureau of Minerals and
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anks are normally ice free or have
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ed in large numbers in the assessme
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cetaceans (whales and harbour porpo
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placement and transport corridors.
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shrimp and Greenland halibut, for i
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Mitigation The risk of accidents an
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Miljøet Det pelagiske miljø De fy
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Fangst og udnyttelse Menneskelig ud
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Indenfor fiskeriet, er risikoen for
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Kumulative effekter Der vil være e
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dybde, kan muligvis ændre på konk
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ingsæl, spættet sæl, finhval, pu
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tassannga misilittagarineqalersut s
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Timmisat imarmiut amerlasoorsuit, q
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lu klimami pissutsinut atuutunut tu
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toqunartoqarneri arrortikkuminarner
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toqusarnermik taarserneqarluni, uum
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minguttitamiit ajoquserneqarsinnaan
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Kalaallit Nunaanni immikkut ulorian
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Figure 1.1.1. The assessment area,
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VEC = Valued Ecosystem Components V
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tings/well and in total 6,000 tons
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2.9 Other activities Ship transport
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Figure 3.2.1. Major sea surface cur
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3.2.3 The coasts The coastal zone b
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Jan Feb May Apr May Jul Aug Sep Oct
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Figure 3.3.3. Average sea ice exten
Page 63 and 64: Figure 3.3.4. Major iceberg sources
Page 65 and 66: 4 Biological environment 4.1 Primar
Page 67 and 68: Figure 4.1.1. Monthly progressions
Page 69 and 70: Figure 4.2.1. Calanus spp. biomass
Page 71 and 72: 69 Fish larvae are important compon
Page 73 and 74: Figure 4.2.4. Red dots indicate san
Page 75 and 76: focus should improve our understand
Page 77 and 78: The coastal zone of the assessment
Page 79 and 80: 183 macroalgal species (excl. the b
Page 81 and 82: Table 4.3.1. Distribution of macroa
Page 83 and 84: Chaetomorpha capillaris Chaetomorph
Page 85 and 86: egistered in the area. A similar pa
Page 87 and 88: The sea ice algal production in the
Page 89 and 90: 1990) and then north (mid-2000s) in
Page 91 and 92: September when they have reached a
Page 93 and 94: Salmon, Salmo salar Biology and dis
Page 95 and 96: tween 1 and 2.4 billion individuals
Page 97 and 98: It should be noted that the breedin
Page 99 and 100: 66°N 64°N 62°N 60°W 60°W Arcti
Page 101 and 102: Knowledge on habitat use of the win
Page 103 and 104: Great shearwater, Puffinus gravis T
Page 105 and 106: Common eider, Somateria mollissima
Page 107 and 108: Figures 4.7.7. At-sea distribution
Page 109 and 110: Figure 4.7.9. Distribution and inte
Page 111 and 112: Figure 4.7.11. At-sea distribution
Page 113: The Iceland gull has a favourable c
Page 117 and 118: Murres spend very long time on the
Page 119 and 120: The puffins are migratory, but thei
Page 121 and 122: Figure 4.7.16. Density of whitetail
Page 123 and 124: sonal communication 1984) varied wi
Page 125 and 126: Numbers: The status of the walrus s
Page 127 and 128: tively impacted by disturbance from
Page 129 and 130: surround the eyes and line the oral
Page 131 and 132: Sensitivity: Non-whelping hooded se
Page 133 and 134: winter in reoccurring leads and pol
Page 135 and 136: Critical and important habitats: Th
Page 137 and 138: Figure 4.8.6. The main frequency ra
Page 139 and 140: tude breeding grounds and high lati
Page 141 and 142: Figure 4.8.7. Migration routes for
Page 143 and 144: long-finned squid (Loligo pealei) (
Page 145 and 146: Until recently the abundance of har
Page 147 and 148: Figure 4.8.9. Main summer and winte
Page 149 and 150: 4.9.1 Pelagic hotspots The shelf ba
Page 151 and 152: 5 Natural resource use 5.1 Commerci
Page 153 and 154: 66°N 64°N 62°N 60°W Snow crab c
Page 155 and 156: Figure 5.1.4. Distribution and size
Page 157 and 158: Salmon, Salmo salar The fishery for
Page 159 and 160: Figure 5.2.2. Annual number of king
Page 161 and 162: 2003/04-2007/08 the catch averaged
Page 163 and 164: 66°N 64°N 62°N 66°N 64°N 62°N
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Figure 5.2.6. The West Greenland ca
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Figure 5.3.1. The number of cruise
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6.2 National nature protection legi
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formation see the IBA website (http
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glaucous gulls, great black-backed
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7.2 Conclusions on contaminant leve
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structures containing up to 10 ring
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The current warming trends are ofte
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species interactions. In the review
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8.5 Marine mammals and seabirds The
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9 Impact assessment David Boertmann
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10 Impacts of the potential routine
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Impact of seismic noise on zoo- and
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type or timing of vocalisations. In
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detailed studies on the effect of s
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Table 10.1.1. Overview of potential
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een eliminated on the grounds of en
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10.3 Development and production act
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hydrocarbon activities in Greenland
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parts of the shelf. Activities in t
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Seabird hunting is widespread and i
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There is a risk of reduced availabi
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General knowledge on the potential
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week period after the Exxon Valdez
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In general, species with distinct s
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A study of the density and distribu
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majority of the biomass. From a bio
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waters longer. The coastal fishery
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Seal pups are very sensitive to dir
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indicates that similar long-term im
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other parameters. It should be note
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Autumn (September-November) During
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to oil spills and produced water. I
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12.2.1 Ecotoxicological Monitoring
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Andersen JB, Böcher J, Guttmann B,
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Anon (2011b). Selvstyrets bekendtg
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Blackwell SB, Lawson JW, Williams M
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Born EW (2003). Reproduction in mal
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Buch E, Nielsen MH, Pedersen SA (20
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Clark RC, Finley JS (1977). Effects
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Dietz R, Heide-Jørgensen MP (1995)
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Falk K, Møller S (1997). Breeding
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Gjertz I, Kovacs KM, Lydersen C, Wi
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Hansen JLS, Hjorth M, Rasmussen MB,
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Heide-Jørgensen MP, Laidre KL (201
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Horsted SA (2000). A review of the
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Jonas RF (1974). Prospect for the e
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Ketten DR, Lien J, Todd S (1993). B
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Lick R, Piatkowski U (1998). Stomac
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Melle W, Serigstad B, Ellertsen B (
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Mosbech A, Danø R, Merkel FR, Sonn
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Nielsen OK, Lyck E, Mikkelsen MH, H
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Parry GD, Gason A (2006). The effec
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Popper AN, Fewtrell J, Smith ME, Mc
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Rivkin RB, Tian R, Anderson MR, Pay
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Schaaning MT, Trannum HC, Øxnevad
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Simpson AC, Howell BR, Warren PJ (1
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Taylor MK, Akeeagok S, Andriashek D
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Wegeberg S, Bangsholt J, Dolmer P,
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