pneumatophore


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pneumatophore

the bladder-like polyp of SIPHONOPHORES which enables them to float.It is usually the uppermost polyp of the CORMIDIUM.
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Based on previous studies, we expected shrimp to prefer dense pneumatophore habitat over medium-density Sparlina, because pneumatophores appeared to be a more complex habitat.
This former back barrier sand ridge contains sulfuric materials and has developed a 2-m-thick sulfuric horizon because pyrite framboids within and surrounding decomposed mangrove pneumatophores have oxidised to form yellow jarosite mottles (4Bj horizons) and acidity where calcium availability is limited.
In the mangrove forest, destructive sampling was necessary to quantify recruits accurately, which tended to be covered with mud, and quantitative sampling was conducted on 4 occasions (4, 12, 24, and 36 wk after the deployment of pneumatophore mimics).
Many of these gelatinous organisms form dense populations, especially the physonectid siphonophores, which have gas in their pneumatophores, and their distribution in the deep sea coincides with what is called the deep scattering layer (DSL).
The pneumatophores are mostly submerged, but are exposed to air during low tide.
The plants found on the first two zones exhibit most of the morphological and physiological adaptations (aerial, slilt roots, pneumatophores, vivipary, salt-tolerance, etc.
It is considerable the high density of pneumatophores, which are sometimes used as attachment points of seaweed and animals, and over which it is possible to walk easily (Table 4).
Avicennia marina, is dominating in the investigated area with its characteristic system of hanging roots or pneumatophores.
Pneumatophores are like snorkels, helping the mangroves to breathe in air.
They obtain oxygen in the poorly aerated muddy substrate through an elaborate system of stilt roots and through specially adapted pneumatophores, aerial roots that bear more than a passing resemblance to asparagus.
pneumatophores and aerenchyma development in roots and stem bases.
In vitro, antibacterial comparative study between the pneumatophores of Xylocarpus moluccensis and H.