<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Dimiza, M.,</style></author><author><style face="normal" font="default" size="100%">Triantaphyllou, M.,</style></author><author><style face="normal" font="default" size="100%">Dermitzakis, M.D.,</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Vertical distribution and ecology of living coccolithophores in the marine ecosystems of Andros Island (Middle Aegean Sea) during late summer 2001</style></title><secondary-title><style face="normal" font="default" size="100%">Hellenic Journal of Geosciences</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2008</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.hellenjgeosci.geol.uoa.gr/43/GEOL%2043%20PAGES%207-20.pdf</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">43</style></volume><pages><style face="normal" font="default" size="100%">7-20</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Living coccolithophores were collected in August 2001, at different photic depths (0-120 m), form 8 stations along a&amp;nbsp;transect in the gulf of Korthi (Andros island). The analysis of the vertical distribution of coccolithophores certified high differentiation&amp;nbsp;in density and diversity, as well as in the species composition at different depth levels. As a result, the photic zone is separated&amp;nbsp;into three distinct sub-zones: upper (0-25 m depth), middle (45-60 m depth) and lower (90-120 m depth). The total cell density&amp;nbsp;varies between 14.7x10&lt;sup&gt;3&lt;/sup&gt; cells/l and 1.9x10&lt;sup&gt;3&lt;/sup&gt; cells/l, and is usually higher in the upper and middle photic zone, while in the lower&amp;nbsp;photic zone it gradually decreases. The highest species richness (max=34 taxa) was observed at the middle photic zone. &lt;em&gt;Emiliania&amp;nbsp;&lt;/em&gt;&lt;em&gt;huxleyi&lt;/em&gt;,&lt;em&gt; Rhabdosphaera clavigera&lt;/em&gt; and holococcolithophores preferred the upper photic zone. On the contrary, in the lower photic&amp;nbsp;zone, the presence of &lt;em&gt;Florisphaera profunda&lt;/em&gt; and &lt;em&gt;Algirosphaera robusta&lt;/em&gt; becomes important, making up the typical deep community.&amp;nbsp;&lt;em&gt;Umbellosphaera tenuis&lt;/em&gt; is an additional important component of the summer heterococcolithophore nannoflora, especially in the&amp;nbsp;middle photic zone. The studied coastal marine coccolithophore communities indicate that temperature and availability of nutrient&amp;nbsp;concentrations are the most important controlling factors controlling their vertical distribution.&lt;/p&gt;</style></abstract></record></records></xml>