نتایج جستجو برای: posidonia
تعداد نتایج: 655 فیلتر نتایج به سال:
Aegagropiles are conglomerations of fibre debris from Posidonia oceanica meadows that frequently found along Mediterranean beaches, but the plant organ which these fibres arise remains unknown. In this study, a histological comparison P. organs 3 shoots with structure aegagropile showed most them leaf sheaths and rhizomes, suggesting they degradation products “matte” rather than litter, is main...
A new interpretation of the Middle Jurassic-Early Cretaceous paleogeographic evolution NW sector Latium-Abruzzi carbonate platform facing Umbria-Marche Basin is proposed, based on Monte Giano area (central Apennines, Italy). During Late Triassic-early Bajocian time, was characterized by shallow water sedimentation. Inner and marginal deposits are overlain pelagic (Posidonia level), early p.p. i...
<em>Posidonia oceanica</em> (Linnaeus) Delile is one of the most important endemic species Mediterranean Sea. The long phylogenetic pathway this deserves special attention because its evolutionary history allows us to think back over debated issue life evolution on Earth. Hence, marine plant, by terrestrial origin, was born from an ancient ancestor named cretacea</em> Hosius &...
The Mediterranean seagrass Posidonia oceanica (L.) Delile has been used for trace element (TE) biomonitoring since decades ago. However, present informations for this bioindicator are limited mainly to plant TE levels, while virtually nothing is known about their fluxes through P. oceanica meadows. We therefore contaminated seagrass bed portions in situ at two experimental TE levels with a mix ...
For seagrasses, seasonal and daily variations in light and temperature represent the mains factors driving their distribution along the bathymetric cline. Changes in these environmental factors, due to climatic and anthropogenic effects, can compromise their survival. In a framework of conservation and restoration, it becomes crucial to improve our knowledge about the physiological plasticity o...
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