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  • Epidermis  (2)
  • Accelerator mass spectrometry (AMS); Accumulation rate, mass; Age, dated; Age, dated standard deviation; Archive of Ocean Data; ARCOD; ARK-XI/1; Calculated; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Gravity corer (Kiel type); Kara Sea; Polarstern; PS2718-6; PS36; PS36/002; Sample code/label; Sedimentation rate; SL  (1)
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  • 1
    facet.materialart.
    Unknown
    Radiocarbon datings of mollusk shells, sedimentation rates and accumulation rates of sediment matter in core PS2718-6 (2000)
    PANGAEA
    In:  Supplement to: Levitan, Mikhail A; Arnold, M; Burtman, M V; Ivanova, Elena V; Marina, Mariya M (2000): On the Holocene sedimentation history of the eastern Kara Sea. Translated from Okeanologiya, 2000, 40(4), 614-620, Oceanology, 40(4), 577-582
    Details
    Publication Date: 2024-07-01
    Description: A bottom sediment core about 8 m long sampled in the eastern Kara Sea near the entrance to the Vil'kitsky Strait was studied. An age model was constructed based on four 14C datings obtained from by thy accelerating mass spectrometry method. Results of grain size, chemical, mineralogical, and foraminiferal analyses were adjusted to the model. A paleoceanological interpretation of these data together with paleoclimatic data on the Bol'shevik Island located in the neighborhood was performed.
    Keywords: Accelerator mass spectrometry (AMS); Accumulation rate, mass; Age, dated; Age, dated standard deviation; Archive of Ocean Data; ARCOD; ARK-XI/1; Calculated; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Gravity corer (Kiel type); Kara Sea; Polarstern; PS2718-6; PS36; PS36/002; Sample code/label; Sedimentation rate; SL
    Type: Dataset
    Format: text/tab-separated-values, 32 data points
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    DATA PANGAEA
  • 2
    Electronic Resource
    Electronic Resource
    Die Schreckstoffzellen von Phoxinus phoxinus und Morulius chrysophakedion (Cyprinidae, Ostariophysi, Pisces) (1971)
    Springer
    Cell & tissue research 118 (1971), S. 203-213 
    Details
    ISSN: 1432-0878
    Keywords: Alarm substance cells ; Cyprinidae ; Epidermis ; Club cells
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Description / Table of Contents: Zusammenfassung Die Untersuchung der Histochemie und der Ultrastruktur der Schreckstoffzellen von Phoxinus phoxinus und Morulius chrysophakedion (Cyprininae, Cyprinidae, Cypriniformes, Ostariophysi) führte zu übereinstimmenden Ergebnissen. Unmittelbar perinucleär sind Ribosomen, Mitochondrien und ein Golgikomplex nachweisbar, von dem ein Netzwerk tubulärer Systeme ausgeht. Histochemisch sind in unmittelbarer Kernnähe gelegentlich Glykogengranula, stets ein deutlicher RNS-Gehalt und die Aktivitäten der Succinatdehydrogenase, der Lactatdehydrogenase, in einigen Zellen der Glucose-6-phosphat-dehydrogenase darstellbar. Im gesamten Cytoplasma der Schreckstoffzelle ist die Aktivität der Leucinaminopeptidase vorhanden, deren Maximum ebenfalls in Kernnähe vorliegt. Nur im kernfernen Cytoplasma wurden Proteine und diastaseresistente Polysaccharide nachgewiesen. Aus den Ergebnissen geht hervor, daß die Schreckstoffzellen sekretorisch tätig sind; vermutlich handelt es sich bei dem spezifischen Sekret um ein kleinmolekulares Protein.
    Notes: Summary The histochemical studies of the alarm substance cells from Phoxinus phoxinus and Morulius chrysophakedion (Cyprininae, Cyprinidae, Cypriniformes, Ostariophysi) are in total agreement with the results of the ultrastructural investigations. Perinuclear ribosomes, mitochondria, and a golgi complex are demonstrated. A tubular network radiates from the golgi complex. Histochemically, glycogen granula can occasionally be demonstrated in proximity to the nucleus. Consistently a strong RNA reaction as well as succinic-dehydrogenase activity, lactic-dehydrogenase activity, and in some cells glucose-6-phosphatedehydrogenase activity can be shown. In the cytoplasm of the alarm substance cell leucyl-aminopeptidase activity exists; its maximum lies in vicinity of the nucleus. Proteins and diastase-resistant polysaccharides are found only in cytoplasm not directly adjacent to the nucleus. The results indicate that the alarm substance cells show a secretory activity. It is assumed that the specific secrete is a protein of low molecular weight.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00341564
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  • 3
    Electronic Resource
    Electronic Resource
    Epidermale Organe am Kopf von Morulius chrysophakedion (Cyprinidae, Ostariophysi, Pisces) (1970)
    Springer
    Cell & tissue research 103 (1970), S. 218-231 
    Details
    ISSN: 1432-0878
    Keywords: Fishes ; Morulius chrysophakedion ; Epidermis ; Flask-shaped organs
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Description / Table of Contents: Zusammenfassung Im Kopfbereich von Morulius chrysophakedion liegen epidermale Organe in Gruppen beisammen. Im Gegensatz zu den oberflächlichen Perlorganen anderer Cyprinidae handelt es sich hierbei um voluminöse Einsenkungen der Epidermis in das darunter gelegene Bindegewebe, von dem aus gefäßführende Papillen in das Organinnere hineinziehen. Elektronenmikroskopische und histochemische Befunde sprechen für eine relativ hohe Stoffwechselaktivität der das Organ aufbauenden Polsterzellen, als deren Ergebnis eine Art Verhornung an der Organspitze vorliegt. Hinweise auf eine Funktion der epidermalen Organe von Morulius als Sinnesorgane wurden nicht gefunden; sie müssen daher von den Fahrenholzschen Organen der Dipnoi und Brachiopterygii unterschieden werden.
    Notes: Summary There are groups of epidermal organs in the head region of Morulius chrysophakedion. In contrast to the superficial perlorgans of some other Cyprinidae these organs are formed by an infolding of epidermis into the connective tissue beneath. From this tissue vessels reach into the interior of the organ. Electron microscopical and histochemical data give evidence of a relatively high metabolic activity in the “Polsterzellen” from which the organ is built up. These cells give rise to a keratinized area at the top of the organ. There is no evidence that the epidermal organ has the function of a sense organ as in the organs of Fahrenholz in Dipnoi and Brachiopterygii.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00337313
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