GLORIA

GEOMAR Library Ocean Research Information Access

feed icon rss

Ihre E-Mail wurde erfolgreich gesendet. Bitte prüfen Sie Ihren Maileingang.

Leider ist ein Fehler beim E-Mail-Versand aufgetreten. Bitte versuchen Sie es erneut.

Vorgang fortführen?

Exportieren
Filter
Publikationsart
Schlagwörter
Erscheinungszeitraum
  • 1
    Publikationsdatum: 2023-03-14
    Schlagwort(e): Alkalinity, total; Alkalinity, total, standard deviation; Aragonite saturation state; Aragonite saturation state, standard deviation; Bottom water temperature; Calcite saturation state; Calcite saturation state, standard deviation; Calculated using CO2SYS; Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Carbonate ion; Carbonate ion, standard deviation; Carbon dioxide; Carbon dioxide, partial pressure; Carbon dioxide, partial pressure, standard deviation; Carbon dioxide, standard deviation; CIMR_V1-3_C1-3; Columbretes Islands, Mediterranean Sea; CTD/STD SD204, SAIV A/S; DATE/TIME; Group; MULT; Multiple investigations; pH; pH, standard deviation; Potentiometric open-cell titration; Salinity; Site
    Materialart: Dataset
    Format: text/tab-separated-values, 120 data points
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 2
    facet.materialart.
    Unbekannt
    PANGAEA
    In:  Supplement to: Linares, Cristina; Vidal, Montserrat; Canals, Miquel; Kersting, Diego K; Amblas, David; Aspillaga, Eneko; Cebrián, E; Delgado-Huertas, Antonio; Díaz, D; Garrabou, Joaquim; Hereu, B; Navarro, L; Teixidó, Núria; Ballesteros, Manuel (2015): Persistent natural acidification drives major distribution shifts in marine benthic ecosystems. Proceedings of the Royal Society B-Biological Sciences, 282(1818), 20150587, https://doi.org/10.1098/rspb.2015.0587
    Publikationsdatum: 2023-01-13
    Beschreibung: Ocean acidification is receiving increasing attention because of its potential to affect marine ecosystems. Rare CO2 vents offer a unique opportunity to investigate the response of benthic ecosystems to acidification. However, the benthic habitats investigated so far are mainly found at very shallow water (less than or equal to 5 m depth) and therefore are not representative of the broad range of continental shelf habitats. Here, we show that a decrease from pH 8.1 to 7.9 observed in a CO2 vent system at 40 m depth leads to a dramatic shift in highly diverse and structurally complex habitats. Forests of the kelp Laminaria rodriguezii usually found at larger depths (greater than 65 m) replace the otherwise dominant habitats (i.e. coralligenous outcrops and rhodolith beds), which are mainly characterized by calcifying organisms. Only the aragonite-calcifying algae are able to survive in acidified waters, while high-magnesium-calcite organisms are almost completely absent. Although a long-term survey of the venting area would be necessary to fully understand the effects of the variability of pH and other carbonate parameters over the structure and functioning of the investigated mesophotic habitats, our results suggest that in addition of significant changes at species level, moderate ocean acidification may entail major shifts in the distribution and dominance of key benthic ecosystems at regional scale, which could have broad ecological and socio-economic implications.
    Schlagwort(e): CIMR_V1-3_C1-3; Columbretes Islands, Mediterranean Sea; MULT; Multiple investigations
    Materialart: Dataset
    Format: application/zip, 3 datasets
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 3
    Publikationsdatum: 2023-01-13
    Schlagwort(e): Biomass, dry mass, standard deviation; Biomass, dry mass per area; CIMR_V1-3_C1-3; Columbretes Islands, Mediterranean Sea; Group; MULT; Multiple investigations; Species
    Materialart: Dataset
    Format: text/tab-separated-values, 621 data points
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 4
    Publikationsdatum: 2024-03-08
    Schlagwort(e): Alkalinity, total; Alkalinity, total, standard deviation; Ammonium; Ammonium, standard deviation; Aragonite saturation state; Aragonite saturation state, standard deviation; Bicarbonate ion; Bicarbonate ion, standard deviation; Calcite saturation state; Calcite saturation state, standard deviation; Calculated using CO2SYS; Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Carbonate ion; Carbonate ion, standard deviation; Carbon dioxide; Carbon dioxide, partial pressure; Carbon dioxide, partial pressure, standard deviation; Carbon dioxide, standard deviation; CIMR_V1-3_C1-3; Columbretes Islands, Mediterranean Sea; CTD/STD SD204, SAIV A/S; DATE/TIME; DEPTH, water; Evolution II autoanalyzer; MULT; Multiple investigations; Nitrate and Nitrite; Nitrate and Nitrite, standard deviation; pH; pH, standard deviation; Phosphate; Phosphate, standard deviation; Potentiometric open-cell titration; Salinity; Salinity, standard deviation; Silicate; Silicate, standard deviation; Temperature, water; Temperature, water, standard deviation
    Materialart: Dataset
    Format: text/tab-separated-values, 90 data points
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 5
    Publikationsdatum: 2024-03-15
    Schlagwort(e): Acinetospora crinita; Acrosorium ciliolatum; Aglaothamnion byssoides; Alcyonium coralloides; Alkalinity, total; Alkalinity, total, standard deviation; Amphiroa rubra; Apoglossum ruscifolium; Aragonite saturation state; Aragonite saturation state, standard deviation; Arthrocladia villosa; Asperococcus ensiformis; Axinella damicornis; Balliella cladoderma; Benthos; Bicarbonate ion; Biomass, dry mass, standard deviation; Biomass, dry mass per area; Biomass/Abundance/Elemental composition; Bonnemaisonia clavata; Botryocladia chiajeana; Botryocladia madagascariensis; Bryozoa unidentified; Bugula sp.; Caberea boryi; Cacospongia mollior; Calcite saturation state; Calcite saturation state, standard deviation; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Calliblepharis jubata; Callophyllis laciniata; Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Carbonate ion; Carbonate ion, standard deviation; Carbonate system computation flag; Carbon dioxide; Carbon dioxide, standard deviation; Carpomitra costata; Cellaria salicornioides; Ceramiaceae unidentified; Ceramium bertholdii; Chondrosia reniformis; Chrysymenia ventricosa; Chylocladia verticillata; CIMR_V1-3_C1-3; Cladophora hutchinsiae; Cladophora pellucida; CO2 vent; Coast and continental shelf; Codium bursa; Codium decorticatum; Columbretes Islands, Mediterranean Sea; Community composition and diversity; Corynophlaea flaccida; Crambe crambe; Crambe tailliezi; Crella sp.; Crisia sp.; Cryptonemia lomation; Cryptonemia tuniformis; Cutleria chilosa; Cutleria monoica; Cystoseira spinosa; Cystoseira zosteroides; Derbesia tenuissima; Dictyota sp.; Dudresnaya verticillata; Elachista neglecta; Entire community; Eunicella singularis; Field observation; Flabellia petiolata; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Gloiocladia furcata; Gloiocladia microspora; Griffithsia genovefae; Griffithsia opuntioides; Griffithsia sp.; Group; Haematocelis rubens; Halimeda tuna; Halopteris filicina; Halymenia elongata; Haraldia lenormandii; Hemimycale columella; Hexadella topsenti; Hincksia mitchelliae; Ircinia oros; Ircinia variabilis; Irvinea boergesenii; Kallymenia feldmannii; Kallymenia patens; Kallymenia requienii; Kallymenia sp.; Laminaria rodriguezii; Laurencia sp.; Leathesia mucosa; Leptofauchea coralligena; Lithophyllum stictaeforme; Lithothamnion corallioides; Lithothamnion valens; Lomentaria chylocladiella; Lomentaria ercegovicii; Lomentaria subdichotoma; Mediterranean Sea; Meredithia microphylla; Mesophyllum alternans; Mesophyllum expansum; Mimosella gracilis; Mimosella verticillata; MULT; Multiple investigations; Myriapora truncata; Myriogramme tristromatica; Myriotrichia adriatica; Neogoniolithon mamillosum; Neomonospora pedicellata var. tenuis; Neurocaulon foliosum; Nitophyllum flabellatum; Nitophyllum punctatum; OA-ICC; Ocean Acidification International Coordination Centre; Osmundea pelagosae; Parazoanthus axinellae; Partial pressure of carbon dioxide, standard deviation; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Pentapora fascialis; Peyssonnelia crispata; Peyssonnelia dubyi; Peyssonnelia harveyana; Peyssonnelia inamoena; Peyssonnelia rosa-marina; Peyssonnelia squamaria; pH; pH, standard deviation; Pherusella tubulosa; Phyllariopsis brevipes; Phyllophora crispa; Phymatolithon calcareum; Plocamium cartilagineum; Polysiphonia elongella; Polysiphonia flocculosa; Polysiphonia subulifera; Porella cervicornis; Porifera unidentified; Potentiometric; Potentiometric titration; Pseudochlorodesmis furcellata; Pterothamnion crispum; Pycnoclavella sp.; Reteporella sp.; Rhodophyllis divaricata; Rhodophyllis strafforelloi; Rhodymenia sp.; Rocky-shore community; Rodriguezella pinnata; Salinity; Savignyella lafontii; Sebdenia rodrigueziana; Site; Species; Spermatochnus paradoxus; Spermothamnion flabellatum; Sphacelaria cirrosa; Sphacelaria plumula; Sphaerococcus coronopifolius; Spirastrella cunctatrix; Spongia virgultosa; Spongites fruticulosa; Stictyosiphon adriaticus; Temperate; Temperature, water; Turbicellepora avicularis; Type; Valonia macrophysa; Zanardinia typus
    Materialart: Dataset
    Format: text/tab-separated-values, 8661 data points
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 6
    Publikationsdatum: 2012-10-27
    Beschreibung: Fossilized remnants of parts of the digestive system of wood-boring pholadoidean bivalves are reported from late Oligocene–early Miocene deep-water sediments in western Washington State, USA. They are reconstructed using serial grinding tomography and computer-based 3D visualizations. Two types are distinguished: (1) a U-shaped structure with a groove on its inner side, interpreted as the caecum of xylophagaines; (2) an elongate structure with a central groove and thin tubes running parallel to it on its dorsal and ventral side, interpreted as the caecum and the intestine, respectively, of teredinids. Petrological thin-section observations show that these structures are filled by a mass of fine woody material, suggesting that being filled with woody material facilitated their fossilization. Screening the fossil record for similar structures in Mesozoic pholadoidean fossils can potentially help to clarify feeding strategies, phylogenetic relationships and the evolution of feeding strategies among early pholadoidean bivalves.
    Print ISSN: 0260-1230
    Digitale ISSN: 1464-3766
    Thema: Biologie
    Publiziert von Oxford University Press
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 7
    Publikationsdatum: 2016-01-22
    Beschreibung: Understanding how bivalves responded to past temperature fluctuations may help us to predict specific responses of complex calcifiers to future climate change. During the late-Early Aptian, aragonite-rich rudist bivalves decreased in abundance in northern Tethyan carbonate platforms, while rudists with a thickened calcitic outer shell layer came to dominate those of Iberia. Seawater cooling and variations in calcium carbonate saturation states may have controlled this faunal turnover. However, our understanding of how rudist lineages responded to changing environmental conditions is constrained by a lack of quantitative data on the evolution of thickness, size, and mineralogy of the shell. This study is based on volumetric measurements of the shell and shows the transition in lineages of the family Polyconitidae from aragonite-rich mineralogy in the earliest Aptian, to low-Mg calcite-dominated mineralogy in the middle Aptian, returning to aragonite-dominated composition in the latest Aptian. The platform biocalcification crisis that occurred at the Early-Late Aptian boundary in the Tethys was marked by a relative increase of calcite and a decrease in skeletal thickness and commissural diameters. The highest calcite/aragonite (Cc/A) ratios in polyconitid rudists accompanied the late Aptian cold episode, and the lowest values were reached during the warmer intervals of the earliest and latest Aptian. These results imply a correlation between Cc/A ratio values and temperature and suggest that some bivalves adapted to less favorable calcification conditions by changing calcite and aragonite proportions of their bimineralic shells and decreasing skeletal thickness, thereby reducing the metabolic cost of shell growth.
    Print ISSN: 0091-7613
    Digitale ISSN: 1943-2682
    Thema: Geologie und Paläontologie
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
Schließen ⊗
Diese Webseite nutzt Cookies und das Analyse-Tool Matomo. Weitere Informationen finden Sie hier...