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Autores principales: Teca, Elisabeth, Michel, Elisabeth, Siani, Giuseppe, Crosta, Xavier, Lange, Carina Beatriz, Martínez Fontaine, Consuelo, Cárdenas, Paola
Formato: Dataset Open Access
Lenguaje:en
Publicado: PANGAEA 2025
Materias:
Actinocyclus actinochilus; Actinocyclus actinochilus, error; Actinocyclus curvatulus; Actinocyclus curvatulus, error; Actinoptychus senarius; Actinoptychus senarius, error; Actinoptychus vulgaris; Actinoptychus vulgaris, error; AGE; Asteromphalus parvulus; Asteromphalus parvulus, error; Asteromphalus spp.; Asteromphalus spp., error; Azpeitia tabularis group; Azpeitia tabularis group, error; CALYPSO2; Calypso Corer II; Chaetoceros, resting spores; Chaetoceros, resting spores, error; Cocconeis spp. group; Cocconeis spp. group, error; Coscinodiscus marginatus; Coscinodiscus marginatus, error; Coscinodiscus radiatus; Coscinodiscus radiatus, error; Coscinodiscus spp.; Coscinodiscus spp., error; Counting, diatoms; Cyclotella litoralis; Cyclotella litoralis, error; Cyclotella spp.; Cyclotella spp., error; DEPTH, sediment/rock; Diatom; Diatom fragments; Diatoms; Diatoms, centrales; Diatoms, centrales, error; Diatom valves, per unit sediment mass; Ditylum brightwellii; Ditylum brightwellii, error; Eucampia antarctica; Eucampia antarctica, error; Foraminifera; Fragilariopsis doliolus; Fragilariopsis doliolus, error; Fragilariopsis kerguelensis; Fragilariopsis kerguelensis, error; Fragilariopsis pseudonana; Fragilariopsis pseudonana, error; Fragilariopsis rhombica; Fragilariopsis rhombica, error; Gomphonema spp.; Gomphonema spp., error; Grammatophora spp.; Grammatophora spp., error; Hemidiscus cuneiformis; Hemidiscus cuneiformis, error; IMAGES XV - Pachiderme; Last Glacial; Marion Dufresne (1995); MD07-3081; MD159; Melosira spp.; Melosira spp., error; Navicula capitata; Navicula capitata, error; Navicula directa; Navicula directa, error; Navicula spp.; Navicula spp., error; Nitzschia bicapitata; Nitzschia bicapitata, error; Nitzschia kolaczeckii; Nitzschia kolaczeckii, error; Nitzschia sicula; Nitzschia sicula, error; Nitzschia spp.; Nitzschia spp., error; Paralia sulcata; Paralia sulcata, error; Pennate benthic; Pennate benthic, error; Pennate spp.; Pennate spp., error; Planktoniella sol; Planktoniella sol, error; Proboscia alata; Proboscia alata, error; Psammodictyon panduriforme; Psammodictyon panduriforme, error; Pseudogomphonema kamtschaticum; Pseudogomphonema kamtschaticum, error; Rhizosolenia antennata; Rhizosolenia antennata, error; Rhizosolenia bergonii; Rhizosolenia bergonii, error; Rhizosolenia spp.; Rhizosolenia spp., error; Roperia tesselata; Roperia tesselata, error; Shionodiscus gracilis; Shionodiscus gracilis, error; Shionodiscus group; Shionodiscus group, error; Shionodiscus oestrupii; Shionodiscus oestrupii, error; Shionodiscus oestrupii var. venrickae; Shionodiscus oestrupii var. venrickae, error; Shionodiscus poroseriatus; Shionodiscus poroseriatus, error; Shionodiscus spp.; Shionodiscus spp., error; South Pacific Ocean; Staurosira spp.; Staurosira spp., error; Stellarima stellaris; Stellarima stellaris, error; Stephanodiscus spp.; Stephanodiscus spp., error; Stephanopyxis spp.; Stephanopyxis spp., error; Thalassionema nitzschioides group; Thalassionema nitzschioides group, error; Thalassionema nitzschioides var. claviformis; Thalassionema nitzschioides var. claviformis, error; Thalassionema nitzschioides var. inflatum; Thalassionema nitzschioides var. inflatum, error; Thalassionema nitzschioides var. nitzschioides; Thalassionema nitzschioides var. nitzschioides, error; Thalassionema spp.; Thalassionema spp., error; Thalassiosira; Thalassiosira , error; Thalassiosira angulata; Thalassiosira angulata, error; Thalassiosira antarctica; Thalassiosira antarctica, error; Thalassiosira eccentrica; Thalassiosira eccentrica, error; Thalassiosira gravida; Thalassiosira gravida, error; Thalassiosira lentiginosa; Thalassiosira lentiginosa, error; Thalassiosira lineata; Thalassiosira lineata, error; Thalassiosira maculata; Thalassiosira maculata, error; Thalassiosira oliverana; Thalassiosira oliverana, error; Thalassiosira pacifica; Thalassiosira pacifica, error; Thalassiosira simonsenii; Thalassiosira simonsenii, error; Thalassiosira spp.; Thalassiosira spp., error; Thalassiothrix spp.; Thalassiothrix spp., error; Trichotoxon spp.; Trichotoxon spp., error
Acceso en línea:https://doi.org/10.1594/PANGAEA.974849
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  • This dataset contains diatom abundance (Valves g-1), fragments (%), and relative percentage of diatom species and associated standard error (%) from core MD07-3081. 51 samples, with a resolution of 0.1 to 1 ka, were analyzed for diatom content. For sediment processing and slide preparation, we followed the protocol described by Crosta et al., 2020. We calculated the associated error of each percentage based on the equation proposed by Patterson and Fishbein (1989). Chaetoceros spp. resting spores (CRS) were not identified at the species level. Due to their similar ecology, we grouped the species Thalassionema nitzschioides var. capitulata and Thalassionema nitzschioides var. lanceolata under the Thalassionema nitzschioides group, the species Shionodiscus trifultus and Shionodiscus frenguellii were grouped under the name of the Shionodiscus group because these species look very similar under the light microscope and have a similar ecology and distribution in subantarctic waters, Azpeitia tabularis var. tabularis and Azpeitia tabularis var. egrerius were combined into the Azpeitia tabularis group. Finally, Shionodiscus oestrupii var. oestrupii is referred hereafter to Shionodiscus oestrupii. Total diatom counts include Chaetoceros resting spores.

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