Bergmann, Melanie; Langwald, Nina; Ontrup, Jörg; Soltwedel, Thomas; Schewe, Ingo; Klages, Michael; Nattkemper, Tim W (2011): (Table 2) Species density and composition of an inshore and offshore station in Kongsfjord, Svalbard [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.807423, Supplement to: Bergmann, M et al. (2011): Megafaunal assemblages from two shelf stations west of Svalbard. Marine Biology Research, 7(6), 525-539, https://doi.org/10.1080/17451000.2010.535834
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Abstract:
Megafauna plays an important role in benthic ecosystems and contributes significantly to benthic biomass in the Arctic. The distribution is mostly studied using towed cameras. Here, we compare the megafauna from two sites located at different distances from the Kongsfjord: one station at the entrance to the fjord, another on the outer shelf. Although they are only located 25 km apart and at comparable depth, there were significant differences in their species composition. While the inshore station was characterized by shrimps (2.57 +/- 2.18 ind./m**2) and brittlestars (3.21 +/- 3.21 ind./m**2), the offshore site harboured even higher brittlestar densities (15.23 +/- 9.32 ind./m**2) and high numbers of the sea urchin Strongylocentrotus pallidus (1.23 +/- 1.09 ind./m**2). Phytodetrital concentrations of the upper sediment centimetres were significantly higher inshore compared with offshore. At a smaller scale, there were also differences in the composition of different transect sections. Several taxa were characterized by a patchy distribution along transects. We conclude that these differences were caused primarily by habitat characteristics. The seafloor inshore was characterized by glacial soft sediments, whereas the station offshore harboured large quantities of stones. Although the use of a new web-2.0-based tool, BIIGLE (http://www.BIIGLE.de), allowed us to analyse more images (~90) than could have been achieved by hand, taxon area curves indicated that the number of images analysed was not sufficient to capture the species inventory fully. New automated image analysis tools would enable a rapid analysis of larger quantities of camera footage.
Project(s):
Coverage:
Median Latitude: 79.004050 * Median Longitude: 10.260025 * South-bound Latitude: 78.953600 * West-bound Longitude: 9.377400 * North-bound Latitude: 79.060200 * East-bound Longitude: 11.098800
Date/Time Start: 2008-07-06T11:57:00 * Date/Time End: 2008-07-07T02:18:00
Minimum Elevation: -284.0 m * Maximum Elevation: -219.0 m
Event(s):
PS72/106-4 * Latitude Start: 79.060200 * Longitude Start: 11.069500 * Latitude End: 79.023300 * Longitude End: 11.098800 * Date/Time Start: 2008-07-06T11:57:00 * Date/Time End: 2008-07-06T16:31:00 * Elevation Start: -219.0 m * Elevation End: -284.0 m * Campaign: ARK-XXIII/2 (PS72) * Basis: Polarstern * Method/Device: Multi frame (MF)
PS72/107-4 * Latitude Start: 78.979100 * Longitude Start: 9.494400 * Latitude End: 78.953600 * Longitude End: 9.377400 * Date/Time Start: 2008-07-06T21:47:00 * Date/Time End: 2008-07-07T02:18:00 * Elevation Start: -228.0 m * Elevation End: -222.0 m * Campaign: ARK-XXIII/2 (PS72) * Basis: Polarstern * Method/Device: Multi frame (MF)
Comment:
Abundance: + = present, - = absent, #0 = present, not quantified. Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150
Parameter(s):
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
392 data points
Data
1 Event | 2 Area | 3 Method comm | 4 Porifera [#/m2] | 5 Porifera std dev [±] | 6 A. apollinis [#/m2] | 7 A. apollinis std dev [±] | 8 T. suctoria | 9 Myxilla sp. | 10 Microcionidae | 11 H. muricatum | 12 H. scutum | 13 S. plicatile | 14 G. rubiformis [#/m2] | 15 G. rubiformis std dev [±] | 16 Alcyonacea [#/m2] | 17 Alcyonacea std dev [±] | 18 Anthozoa [#/m2] | 19 Anthozoa std dev [±] | 20 Actiniaria [#/m2] | 21 Actiniaria std dev [±] | 22 H. digitata | 23 H. nodosa | 24 Actinostolidae | 25 Actiniidae (gen.1 sp.1) | 26 Actiniidae (sp. cf. Epiactis sp.) | 27 Ceriantharia [#/m2] | 28 Ceriantharia std dev [±] | 29 Leptochiton sp. | 30 Gastropoda [#/m2] | 31 Gastropoda std dev [±] | 32 F. janmayeni | 33 L. caeca | 34 S. obscura | 35 Oenopota sp. | 36 Cylichna sp. | 37 P. finmarchica | 38 C. salmonacea | 39 T. reticulatus | 40 V. norwegicus | 41 C. ciliatum | 42 N. despecta | 43 C. sabini | 44 N. pernula | 45 Y. solidula | 46 Y. propinqua | 47 A. montagui | 48 S. greenlandicus | 49 C. affinis | 50 C. islandica | 51 Hiatella sp. | 52 Sepiolidae | 53 Nemertea | 54 Serpulidae [#/m2] | 55 Serpulidae std dev [±] | 56 Sabellidae | 57 Chone sp. | 58 Branchiomma sp. | 59 J. cf. schaudinni | 60 Pherusa sp. | 61 L. mammosus | 62 M. heeri | 63 M. cf. oculata | 64 G. cirrhosa | 65 Harmothoe sp. | 66 E. nodosa | 67 B. elegans | 68 B. groenlandicus | 69 Polynoidae | 70 A. proboscidea | 71 N. affinis | 72 Terebellides sp. | 73 Chaetozone spp. | 74 Cirratulus sp. | 75 Euphrosine sp. | 76 B. granulosa | 77 B. inhabilis | 78 Maldanidae | 79 M. sarsi | 80 M. cf. arctica | 81 C. biceps | 82 N. lumbricalis | 83 P. longissima | 84 N. ciliata | 85 N. conchylega | 86 Prionospio sp. | 87 L. cf. cirrata | 88 Laonice sp. | 89 S. kroeyeri | 90 S. cornuta | 91 S. fragilis | 92 Lumbrinereidae | 93 L. labiata | 94 A. gunneri | 95 A. gracilis | 96 E. flava | 97 E. foliosa | 98 S. typicus | 99 H. filiformis | 100 C. capitata (agg.) | 101 P. cf. assimilis | 102 P. strombi | 103 G. margaritacea | 104 N. diaphanes | 105 C. proboscidea [#/m2] | 106 C. proboscidea std dev [±] | 107 N. hirtipes (species questionable) | 108 M. typica | 109 P. holbolli | 110 P. hystrix | 111 H. fulvocincta | 112 A. phyllonyx | 113 Oedicerotidae | 114 Haploops sp. | 115 S. ampulla | 116 A. tumidus | 117 Themisto sp. | 118 Amphipoda [#/m2] | 119 Amphipoda std dev [±] | 120 Hyas spp. [#/m2] | 121 Hyas spp. std dev [±] | 122 Caridea [#/m2] | 123 Caridea std dev [±] | 124 Pandalus sp. | 125 Sclerocrangon sp. | 126 Crustacea [#/m2] | 127 Crustacea std dev [±] | 128 M. coarctata [#/m2] | 129 M. coarctata std dev [±] | 130 D. cf. fruticosa | 131 C. papposus [#/m2] | 132 C. papposus std dev [±] | 133 I. panopla [#/m2] | 134 I. panopla std dev [±] | 135 P. typicus | 136 C. crispatus | 137 H. perforata | 138 P. cf. pulvillus | 139 Asteroidea [#/m2] | 140 Asteroidea std dev [±] | 141 Ophiuroidea [#/m2] | 142 Ophiuroidea std dev [±] | 143 O. sarsi | 144 O. bidentata | 145 O. robusta | 146 O. aculeata | 147 S. pallidus [#/m2] | 148 S. pallidus std dev [±] | 149 E. scaber | 150 Ascidiacea [#/m2] | 151 Ascidiacea std dev [±] | 152 Zoarcidae [#/m2] | 153 Zoarcidae std dev [±] | 154 L. gracilis | 155 Gymnelus sp. | 156 G. morhua [#/m2] | 157 G. morhua std dev [±] | 158 A. minor [#/m2] | 159 A. minor std dev [±] | 160 L. lampretaeformis [#/m2] (species questionable) | 161 L. lampretaeformis std dev [±] | 162 A. atlanticus | 163 H. platessoides [#/m2] (species questionable) | 164 H. platessoides std dev [±] | 165 Pisces [#/m2] | 166 Pisces std dev [±] | 167 A. radiata [#/m2] | 168 A. radiata std dev [±] |
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PS72/106-4 | Inshore | Mean | 0.01 | 0.05 | 0.04 | 0.18 | - | - | - | - | - | - | 0.06 | 0.18 | 0.00 | 0.00 | 0.05 | 0.14 | 0.04 | 0.17 | - | - | - | - | - | 0.00 | 0.00 | - | 0.04 | 0.15 | + | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0.03 | 0.13 | - | - | - | - | - | + | - | - | - | - | - | - | - | - | + | - | - | + | - | - | - | - | - | - | - | - | - | - | - | - | + | + | - | - | - | + | + | + | - | - | + | - | - | - | + | + | - | - | - | 0.08 | 0.24 | - | - | + | - | - | - | - | - | - | - | - | 0.00 | 0.00 | 0.03 | 0.12 | 2.57 | 2.18 | - | - | 0.21 | 0.39 | 0.00 | 0.00 | - | 0.00 | 0.00 | 0.00 | 0.00 | - | - | - | - | 0.02 | 0.10 | 3.21 | 3.21 | + | - | - | - | 0.15 | 0.39 | - | 0.000 | 0.00 | 0.005 | 0.05 | - | - | 0.39 | 0.69 | 0.004 | 0.04 | 0.01 | 0.05 | - | 0.01 | 0.08 | 0.020 | 0.09 | 0.01 | 0.05 |
PS72/106-4 | Inshore | Max | 0.51 | 1.08 | 1.08 | 0.00 | 0.68 | 1.35 | 0.00 | 0.79 | 0.72 | 1.55 | 0.00 | 0.83 | 10.70 | 1.71 | 0.00 | 0.00 | 0.00 | 0.62 | 14.00 | 2.00 | 0.000 | 0.440 | 3.03 | 0.410 | 0.36 | 0.72 | 0.610 | 0.52 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
PS72/107-4 | Offshore | Mean | 0.02 | 0.09 | 0.14 | 0.27 | + | + | + | + | + | + | 0.27 | 0.47 | 0.01 | 0.07 | 0.07 | 0.20 | 0.11 | 0.24 | + | + | + | + | + | 0.01 | 0.05 | + | 0.01 | 0.06 | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | 0.65 | 1.07 | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | - | - | + | + | - | + | + | + | - | - | + | + | + | #0.00 | 0.00 | + | + | - | + | + | + | + | + | + | + | + | 0.01 | 0.07 | 0.00 | 0.05 | 0.04 | 0.15 | + | + | 0.05 | 0.23 | 0.32 | 0.56 | + | 0.03 | 0.12 | 0.01 | 0.05 | + | + | + | + | 0.03 | 0.12 | 15.23 | 9.32 | + | + | + | + | 1.23 | 1.09 | + | 0.005 | 0.05 | 0.010 | 0.08 | + | + | 0.04 | 0.16 | 0.000 | 0.00 | 0.02 | 0.09 | + | 0.01 | 0.06 | 0.005 | 0.05 | #0.00 | 0.00 | ||
PS72/107-4 | Offshore | Max | 0.71 | 1.21 | 2.66 | 0.64 | 1.16 | 1.10 | 0.40 | 0.45 | 6.49 | #0.00 | 0.71 | 0.46 | 0.89 | 1.77 | 2.46 | 0.62 | 0.49 | 0.71 | 84.90 | 6.04 | 0.460 | 0.710 | 0.84 | 0.000 | 0.71 | 0.49 | 0.450 | #0.00 |