Zonation is evident; mangrove species in the seaward zone form a woodland about 8 m high, dominated by " Sonneratia alba ", " Avicennia marina " and " Aegiceras corniculatum ".
32.
However, on hard surfaces such as the branches of Avicennia and the aerial prop roots of Rhizophora, it is more domed and the animal orientates itself with regard to the water current and the axis of the wood.
33.
Cuban Mangrove forests top layer is made up by 4 tree species; Rhizophora mangle ( Red mangrove ), Avicennia germinans ( Black mangrove ), Laguncularia racemosa ( White mangrove ) and Conocarpus erectus ( Button mangrove ).
34.
In the northern parts where brackish water could be found, attempts are made to dig up channels in fish-bone design and mangroves species such as rhizhophora and avicennia have been planted in extents varying from 50 to 100 ha annually.
35.
""'Streptomyces avicenniae " "'is a bacterium species from the genus of " Streptomyces " which has been isolated from the rhizosphere of the plant Avicennia marina in the Fujian Province in China.
36.
The coastal strip and the creeks abound in semi-aquatic and aquatic plants, and the inshore Indus delta islands have forests of " Avicennia tomentosa " ( timmer ) and " Ceriops candolleana " ( chaunir ) trees.
37.
About 100, 000 saplings belonging to 24 mangrove species such as " Avicennia marina ", " Acanthus ilicifolius ", and " Rizhophora mucronata " and mangrove associates such as barringtonia and pongamia will be planted.
38.
Along the coast of the Red Sea, both on the Egyptian side and in the Gulf of Aqaba, mangroves composed primarily of " Avicennia marina " and " Rhizophora mucronata " grow in about 28 stands that cover about 525 hectares.
39.
The nests are globular grass structures with side-entrances, and are built a few metres off the ground in coastal scrub and the borders of the black mangrove ( " Avicennia germinans " ) forest which thrives along the coasts of the region.
40.
While the developers maintain that there will be little environmental impact, a stand of Grey Mangroves ( " Avicennia marina " ) will have to be removed to make way for the structure, and degradation of the beds of sea grasses is also possible.
