Occurence of monothalamous foraminifera in Admiralty Bay, King George Island, West Antarctica (Table 1, 2)
Occurence of monothalamous foraminifera in Admiralty Bay, King George Island, West Antarctica (Table 1, 2)
During the late 2007 austral summer, 20 sediment samples were collected in Admiralty Bay (King George Island, South Shetlands, West Antarctica) from 8 down to 254 m water-depth (mwd). The samples yielded abundant assemblage of monothalamous benthic foraminifera, belonging to at least 40 morphospecies. They constituted the first such collection from Antarctic Peninsula fjords and provided a new insight into this group's diversity and distribution. Among organic-walled taxa, Psammophaga sp., Allogromia cf. crystallifera, and three morphotypes of Gloiogullmia were especially abundant. Agglutinated forms were dominated by Hippocrepinella hirudinea, Psammosphaera spp., Lagenammina spp., and various mudballs. Although, the majority of the morphotypes were known from other high?latitude locations, somewere reported for the first time. Our quantitative data (>125 µm) showed the greatest differences between monothalamous foraminifera assemblages at shallowest water depths above 50 mwd. The deepest assemblages from between 179 and 254 mwd, were most similar, suggesting uniform near-bottom conditions at ~200 mwd throughout the Admiralty Bay.
Supplement to: Majewski, Wojciech; Lecroq, Beatrice; Sinniger, Frederic; Pawlowski, Jan (2007): Monothalamous foraminifera from Admiralty Bay, King George Island, West Antarctica. Polish Polar Research, 28(3), 187-210
Sampling depth is 0-3 cm. The quantitative data set combines the data obtained at the field station (live specimens) and later in preserved samples (live and dead specimens)
Hippocrepina cf crassa, Armorella cf. sphaerica, Area, Foraminifera, Foraminifera, benthic indeterminata, Lagenammina spp., Bathysiphon cf argenteus, Counting >125 µm fraction, Lagenammina spp, Fraction, Psammophaga sp, Gloiogullmia sp., Calculated, Tinogullmia sp, Armorella sp., Crithionina cf granum, Sample code/label, benthic, Distance, Multiple investigations, Crithionina cf. granum, Foraminifera, benthic monothalamous, Gromiids, Sample code label, Pelosina didera, Depth, bathymetric, Micrometula sp, Tinogullmia sp., Foraminifera, benthic, Psammophaga sp., sediment rock, Armorella cf sphaerica, Astrammina rara, Bathysiphon cf. flexilis, Earth System Research, Hippocrepina cf. crassa, Bathysiphon cf. argenteus, Vanhoeffenella gaussi, Counting >125 µm fraction, Calculated after Shannon 1948, Nemogullmia spp, Counting 125 µm fraction, benthic indeterminata, Sample method, bathymetric, Calculated after Shannon (1948), Astrammina triangularis, DEPTH, sediment/rock, Micrometula sp., Bathysiphon cf flexilis, Armorella sp, Astrorhiza sp., Phainogullmia cf aurata, Gloiogullmia sp, Crithionina sp, Phainogullmia cf. aurata, Allogromia cf. crystallifera, LONGITUDE, Dominance, Pelosina aff. sphaeriloculum, Shannon Diversity Index, Depth, Astrorhiza sp, Hippocrepinella hirudinea, benthic monothalamous, Foraminifera, benthic dead, Hippocrepinella alba, DEPTH, LATITUDE, Crithionina sp., Psammosphaera spp, Nemogullmia spp., Allogromia cf crystallifera, Pelosina aff sphaeriloculum, Psammosphaera spp., Number of species, benthic dead
Hippocrepina cf crassa, Armorella cf. sphaerica, Area, Foraminifera, Foraminifera, benthic indeterminata, Lagenammina spp., Bathysiphon cf argenteus, Counting >125 µm fraction, Lagenammina spp, Fraction, Psammophaga sp, Gloiogullmia sp., Calculated, Tinogullmia sp, Armorella sp., Crithionina cf granum, Sample code/label, benthic, Distance, Multiple investigations, Crithionina cf. granum, Foraminifera, benthic monothalamous, Gromiids, Sample code label, Pelosina didera, Depth, bathymetric, Micrometula sp, Tinogullmia sp., Foraminifera, benthic, Psammophaga sp., sediment rock, Armorella cf sphaerica, Astrammina rara, Bathysiphon cf. flexilis, Earth System Research, Hippocrepina cf. crassa, Bathysiphon cf. argenteus, Vanhoeffenella gaussi, Counting >125 µm fraction, Calculated after Shannon 1948, Nemogullmia spp, Counting 125 µm fraction, benthic indeterminata, Sample method, bathymetric, Calculated after Shannon (1948), Astrammina triangularis, DEPTH, sediment/rock, Micrometula sp., Bathysiphon cf flexilis, Armorella sp, Astrorhiza sp., Phainogullmia cf aurata, Gloiogullmia sp, Crithionina sp, Phainogullmia cf. aurata, Allogromia cf. crystallifera, LONGITUDE, Dominance, Pelosina aff. sphaeriloculum, Shannon Diversity Index, Depth, Astrorhiza sp, Hippocrepinella hirudinea, benthic monothalamous, Foraminifera, benthic dead, Hippocrepinella alba, DEPTH, LATITUDE, Crithionina sp., Psammosphaera spp, Nemogullmia spp., Allogromia cf crystallifera, Pelosina aff sphaeriloculum, Psammosphaera spp., Number of species, benthic dead
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