(Table 1) Population density and biomass of the foraminifer Rupertina, and grain size of cores from the Norwegian continental slope

• Main Authors: Lutze, Gerhard F, Altenbach, Alexander V
• Format: Dataset
• Language: English
• Published: PANGAEA 1988
• Subjects: Date/Time of event; Elevation of event; Event label; Foraminifera; benthic; biomass as carbon; standing stock; Giant box corer; GIK23000-2; GIK23014-1; GIK23015-1; GIK23016-1; GIK23022-1; GIK23023-1; GIK23027-1; GIK23076-1; GIK23222; GIK23237; GKG; Latitude of event; Longitude of event; M2/2; Meteor (1986); Norwegian Sea; P284-2; P309-1; P317; P318; POS119; Poseidon; Size fraction < 0.063 mm; mud; silt+clay; Size fraction > 2 mm; gravel; Size fraction 2.000-0.063 mm; sand; Voring Plateau
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.784979; https://doi.org/10.1594/PANGAEA.784979

Rupertina stabilis occupies a depth restricted biotope of suspension feeding animals situated at the Norwegian continental margin. It extends from the Voring plateau northwards for at least 200 - 300 km, in depths between 600 and 800 m. This slope position is known for relatively strong bottom currents and shifting watermass boundaries. - The species is attached to hard substrates, mainly stones or hydroid stalks and obviously prefers an elevated position. It is building a permanent cyst of sponge spicules and debris at the apertural region. The spicules are used to support a pseudopodial network similar to that described from Halyphysema (LIPPS 1983). It is believed to serve as a filter apparatus. - A review of known occurences in the Atlantic is given, suggesting a temperature adaption of the species ranging from 0°C to a maximum of 8°C. Specimens were successfully cultured for about 2-3 weeks.