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  • LIFE SCIENCES (GENERAL)  (2)
  • diatom  (1)
  • marine  (1)
  • tropical river phytoplankton  (1)
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  • 1
    Digitale Medien
    Digitale Medien
    Epiphytic diatoms of the inshore marine area near Davis Station (1986)
    Springer
    Hydrobiologia 140 (1986), S. 193-198 
    Details
    ISSN: 1573-5117
    Schlagwort(e): marine ; diatom ; epiphytes ; Antarctica
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract Collections of macrophytic algae from the subtidal and lower intertidal regions were processed to observe the diatom epiphytes both by light and scanning electron microscopy. For the purpose of comparison some samples of the sub-ice assemblage were also collected and processed similarly. The standing crop of epiphytes was high throughout the winter as well as the summer but the community composition varied depending upon the collection site and the morphology of the host macrophyte. The genus Cocconeis was ubiquitous achieving densities approaching 105 cells cm−2 and surpassed only by Nitzchiawith a density of twice that amount on one sample.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00007435
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 2
    Digitale Medien
    Digitale Medien
    Environmental conditions and phytoplankton in the Mwenda River, a small intermittent river flowing into Lake Kariba (1985)
    Springer
    Hydrobiologia 126 (1985), S. 81-89 
    Details
    ISSN: 1573-5117
    Schlagwort(e): Stream limnology ; water chemistry ; tropical river phytoplankton
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract Small intermittent rivers play an important role in the limnology of African lakes. The Mwenda River occurs on the southern shore of Lake Kariba. Its flow is governed by the incidence of tropical thunderstorms. During the dry period the river is reduced to a series of turbid pools. Physicochemically the river behaves similarly to a sheltered region of the lake. One river station deviates from the normal pattern because of the insulating effect of a Salvinia mat, and because of its permanent connection with the lake. River flooding flushes both nutrients and major ions into the lake. River phytoplankton populations peak prior to the flushing out of the river. Diatom populations are composed of cosmopolitan tropical taxa.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00008391
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 3
    facet.materialart.
    Unbekannt
    Training-induced alterations in young and senescent rat diaphragm muscle (1992)
    In:  Other Sources
    Details
    Publikationsdatum: 2019-07-12
    Beschreibung: The effect of progressive treadmill exercise on oxidative capacity in three specific diaphragm muscle fiber types and on the capillary density of known fiber types was investigated in young (5 month) and senescent (23 months or older) rats. All animals were trained for 1 hr/day, 5 days weekly, for 10 weeks. Measurements of succinate dehydrogenase activity showed significant increases in all three fiber types in both the young and the senescent trained animals, compared with their sedentary controls. Fiber size and capillary density were not affected by exercise or age. The results demonstrate that the senescent costal diaphragm maintains its ability to adapt to an increased metabolic demand brought about by locomotor exercises.
    Schlagwort(e): LIFE SCIENCES (GENERAL)
    Materialart: Journal of Applied Physiology (ISSN 8750-7587); 72; 4 Ap; 1506-151
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    NASA TECHNICAL REPORTS
  • 4
    facet.materialart.
    Unbekannt
    Myosin heavy chain composition in the rat diaphragm - Effect of age and exercise training (1992)
    In:  Other Sources
    Details
    Publikationsdatum: 2019-07-12
    Beschreibung: The effects of aging and exercise training on the myosin heavy chain (MHC) composition were determined in both the costal and crural diaphragm regions of female Fischer 344 rats. Treadmill running at 75 percent maximal oxygen consumption resulted in similar increases in plantaris muscle citrate synthase activity in both young (5 mo) and old (23mo) trained animals (P less than 0.05). It was found that the ratio of fast to slow MHC was significantly higher (P less than 0.005) in the crural compared with costal diaphragm region in both age groups. A significant age-related increase in persentage of slow MHC was observed in both diaphragm regions. The relative proportion of slow MHC in either costal or crural region was not changed by exercise training.
    Schlagwort(e): LIFE SCIENCES (GENERAL)
    Materialart: Journal of Applied Physiology (ISSN 8750-7587); 73; 4; p. 1282-1286.
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    NASA TECHNICAL REPORTS
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