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  • 1
    Buch
    Buch
    Berlin : Springer Netherland
    Schlagwort(e): Canals ; Canals Environmental aspects ; Isolating mechanisms ; Biogeography ; Biological invasions
    Materialart: Buch
    Seiten: XII, 315 S. , Ill., graph. Darst.
    ISBN: 1402050461 , 9781402050466
    Serie: Monographiae biologicae 83
    DDC: 577.7/18
    RVK:
    Sprache: Englisch
    Anmerkung: Overall introduction / Dan Minchin ... [et al.] -- The Kiel Canal : the world's busiest man-made waterway and biological invasions / Stephan Gollasch & Harald Rosenthal -- The Panama Canal. Cutting a canal through Central America / Andrew N. Cohen. Shipping patterns associated with the Panama Canal : effects on biotic exchange? / Gregory M. Ruiz ... [et al.]. Species introductions and the Panama Canal / Andrew N. Cohen -- The Suez Canal : the marine caravan - the Suez Canal and the Erythrean invasion / Bella S. Galil -- Epilogue : canals, invasion corridors and introductions / Chad Hewitt ... [et al]
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 2
    Online-Ressource
    Online-Ressource
    Dordrecht :Springer Netherlands,
    Schlagwort(e): Biological invasions. ; Electronic books.
    Materialart: Online-Ressource
    Seiten: 1 online resource (328 pages)
    Ausgabe: 1st ed.
    ISBN: 9781402050473
    Serie: Monographiae Biologicae Series ; v.83
    Sprache: Englisch
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 3
    Publikationsdatum: 2023-10-11
    Beschreibung: We provide stable carbon (δ¹³C) and oxygen (δ¹⁸O) isotope measurements in individual calcitic valves of extant ostracode species, Sclerocypris clavularis, from modern sediments in 17 sites across Lake Turkana, eastern Africa. These sediments were collected using a modified Ekman dredge during May-November, 1979. Pooled statistics of these individual ostracode valve analyses (IOVA) of δ¹³C and δ¹⁸O measurements (n = 329) at each site show strong correlations with lake hydrological parameters. Within-site variance in IOVA-δ¹³C is larger (~60%) than that of IOVA-δ¹⁸O. Yet, pooled averages exhibit a systematic pattern with higher δ values towards the southern part of the lake, away from Omo River inflow, which is the largest riverine input into Lake Turkana (comprising ~90% of overall inflows). We suggest that the latitudinal δ¹³C gradient may arise from low riverine δ¹³C and low organic matter δ¹³C as a productivity response to nutrient-rich Omo River inflow towards the north. The δ¹⁸O pattern may be explained by the diminishing influence of Omo River inflows and more evaporation driving higher IOVA-δ¹⁸O values towards the windier, southern basin. We conclude that pooled IOVA statistics in Omo-Turkana sediments can aid interpretations of past regional paleohydrology and its variability in this basin.
    Schlagwort(e): lake sediments; ostracodes; oxygen and carbon isotopes
    Materialart: Dataset
    Format: application/zip, 2 datasets
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 4
    Publikationsdatum: 2023-10-11
    Beschreibung: This dataset contains measurements of individual ostracode valve analyses (IOVA), including stable oxygen (δ¹⁸O) and carbon (δ¹³C) isotopes, and length/width, and mass measurements, at 17 sites across Lake Turkana, eastern Africa. These sediments were collected using a modified Ekman dredge during May–November 1979. The stable isotopic measurements were conducted at the [Paleo² Laboratory at the University of Arizona|https://thirumalai.geo.arizona.edu/] on a Thermo Kiel IV Carbonate Device coupled to a 253 Plus IRMS; the length/width measurements were performed on a MeijiTechno HDZ7000TS Digital Zoom Microscope System, and mass of each valve was measured using a Sartorius Cubis II Ultra-Micro Balance. Details can be found in https://doi.org/10.1029/2022GC010790
    Schlagwort(e): 79-130F; 79-147F; 79-158F; 79-160F; 79-164F; 79-166F; 79-168F; 79-170F; 79-183F; 79-189F; 79-193F; 79-194F; 79-204F; 79-77F; BS125; BS90; BS91; Digital Zoom Microscope System, MeijiTechno, HDZ7000TS; EG; Ekman grab; Elevation of event; Event label; Hole; lake sediments; Lake Turkana, Africa; Latitude of event; Longitude of event; Mass spectrometer ThermoFisher Scientific 253plus gas coupled to a KIEL IV carbonate preparation device; Ostracoda, length; Ostracoda, mass; Ostracoda, δ13C; Ostracoda, δ18O; ostracodes; oxygen and carbon isotopes; Ultra-micro lab balance, Sartorius Cubis II
    Materialart: Dataset
    Format: text/tab-separated-values, 1974 data points
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 5
    Publikationsdatum: 2023-10-11
    Beschreibung: This dataset contains pooled statistics of stable isotope and shell measurements of individual ostracode valve analyses (IOVA) alongside available in-situ measurements of pH, surface and bottom water temperature (BWT), total number of valves analyzed per site, IOVA-δ¹⁸O, IOVA-δ¹³C, shell mass, shell length/width, along with their average and standard deviations at 17 sites across Lake Turkana, eastern Africa. These modern sediments were collected using a modified Ekman dredge during May to November 1979. The stable isotopic measurements were conducted at the [Paleo² Laboratory at the University of Arizona|https://thirumalai.geo.arizona.edu/] on a Thermo Kiel IV Carbonate Device coupled to a 253 Plus IRMS; the length/width measurements were performed on a MeijiTechno HDZ7000TS Digital Zoom Microscope System, and mass of each valve was measured using a Sartorius Cubis II Ultra-Micro Balance. Details about the materials can be found in https://doi.org/10.1029/2022GC010790
    Schlagwort(e): 79-130F; 79-147F; 79-158F; 79-160F; 79-164F; 79-166F; 79-168F; 79-170F; 79-183F; 79-189F; 79-193F; 79-194F; 79-204F; 79-77F; Bottom water temperature; BS125; BS90; BS91; Digital Zoom Microscope System, MeijiTechno, HDZ7000TS; Distance; EG; Ekman grab; Elevation of event; Event label; lake sediments; Lake Turkana, Africa; Latitude of event; Longitude of event; Mass spectrometer ThermoFisher Scientific 253plus gas coupled to a KIEL IV carbonate preparation device; Number of measurements; Ostracoda, length; Ostracoda, length, standard deviation; Ostracoda, mass; Ostracoda, mass, standard deviation; Ostracoda, δ13C; Ostracoda, δ13C, standard deviation; Ostracoda, δ18O; Ostracoda, δ18O, standard deviation; ostracodes; oxygen and carbon isotopes; pH; Sea surface temperature; Site; Ultra-micro lab balance, Sartorius Cubis II
    Materialart: Dataset
    Format: text/tab-separated-values, 243 data points
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 6
    Digitale Medien
    Digitale Medien
    Springer
    Hydrobiologia 421 (2000), S. 25-30 
    ISSN: 1573-5117
    Schlagwort(e): foraminifers ; non-indigenous species ; Trochammina hadai ; San Francisco Bay ; estuaries ; Pacific Coast
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract The earliest record in western North America of Trochammina hadai Uchio, a benthic foraminifer common in Japanese estuaries, is from sediment collected in Puget Sound in 1971. It was first found in San Francisco Bay in sediment samples taken in 1983, and since 1986 has been collected at 91% of the sampled sites in the Bay, constituting up to 93% of the foraminiferal assemblage at individual sites. The species is also present in recent sediment samples from 12 other sites along the west coast of North America. The evidence indicates that T. hadai is a recent introduction to San Francisco Bay, and is probably also not native to the other North American sites. Trochammina hadai was probably transported from Japan in ships' ballast tanks, in mud associated with anchors, or in sediments associated with oysters imported for mariculture. Its remarkable invasion of San Francisco Bay suggests the potential for massive, rapid invasions by other marine microorganisms.
    Materialart: Digitale Medien
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 7
    Publikationsdatum: 2012-09-01
    Beschreibung: The serum 24,25-dihydroxyvitamin D concentration, a marker of vitamin D catabolism, is reduced in chronic kidney disease Kidney International 82, 693 (September (2) 2012). doi:10.1038/ki.2012.193 Authors: Cortney R Bosworth, Gregory Levin, Cassianne Robinson-Cohen, Andrew N Hoofnagle, John Ruzinski, Bessie Young, Stephen M Schwartz, Jonathan Himmelfarb, Bryan Kestenbaum & Ian H de Boer
    Schlagwort(e): chronic kidney diseasemineral metabolismvitamin D
    Thema: Medizin
    Publiziert von Elsevier
    Standort Signatur Einschränkungen Verfügbarkeit
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