Relative abundance of diatom species in surface samples from the Southern Ocean, Sea ice species ...

Diatoms from 228 Southern Ocean core-top sediment samples were examined to determine the geographic distributions of 32 major diatom species/taxa preserved in the sediments of three zonally-distinct regions; Sea Ice, Open Ocean and the Tropical/Subtropical. In the first of three papers, 14 species/t...

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Bibliographic Details
Main Authors: Armand, Leanne K, Crosta, Xavier, Romero, Oscar E, Pichon, Jean-Jacques
Format: Dataset
Language:English
Published: PANGAEA 2005
Subjects:
Event label
Latitude of event
Longitude of event
Elevation of event
DEPTH, sediment/rock
Actinocyclus actinochilus
Chaetoceros affinis, resting spores
Chaetoceros constrictus, resting spores
Chaetoceros coronatus, resting spores
Chaetoceros debilis, resting spores
Chaetoceros diadema, resting spores
Chaetoceros lorenzianus, resting spores
Chaetoceros radicans, resting spores
Fragilariopsis separanda
Porosira pseudodenticulata
Stellarima microtrias
Thalassiosira antarctica
Thalassiosira tumida
Giant box corer
MultiCorer
Gravity corer Kiel type
Counting, diatoms
M46/4
Meteor 1986
Center for Marine Environmental Sciences MARUM
Antarc*
Antarctica
Sea ice
Southern Ocean
Online Access:https://dx.doi.org/10.1594/pangaea.425284
https://doi.pangaea.de/10.1594/PANGAEA.425284
Description
Summary:Diatoms from 228 Southern Ocean core-top sediment samples were examined to determine the geographic distributions of 32 major diatom species/taxa preserved in the sediments of three zonally-distinct regions; Sea Ice, Open Ocean and the Tropical/Subtropical. In the first of three papers, 14 species/taxa occurring in the region where sea ice covers the ocean surface on an annual basis are geographically documented. Comparisons are drawn between the diatom abundances on the sea floor, sea ice parameters (annual duration and concentration in February and September) and February sea-surface temperature. Such parameters are commonly used in reconstructing past oceanographic conditions in the Sea Ice and Open Ocean zones. Analysis of the geographic patterns and sea-surface parameter correlations reveals species-specific distributions regulated primarily by sea ice coverage and sea-surface temperature, which support the use of diatom remains for the estimation of these past sea-surface environmental parameters. ... : Depth=Surface sediment 0-1 cm ...

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