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newsletter_2008_1.pdf - 5.84 MB - The Baltic Sea Project

newsletter_2008_1.pdf - 5.84 MB - The Baltic Sea Project

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It is really a unique place! Just imagine; the introduction<br />

of more than 100 varieties of plants was carried out there.<br />

Workers at the garden add all new and new species annually.<br />

For example in 2005, 47 kinds and grades of trees and<br />

bushes and 55 kinds and grades of grassy plants were<br />

planted; and it is all done in semi-polar conditions, where<br />

the mid-summer temperature reaches only +11.3°C!<br />

<strong>The</strong>re are a lot of other interesting places to have a look<br />

at.<br />

And one of the most important is the aapa bog, also<br />

situated near the garden. Here a big colony of sundews<br />

(Drosera) lives. Believe me; it will make indelible impression<br />

on you and your companions. Keeping a watch on<br />

sundews hunting after poor insects draws you in so much<br />

that you can spend all the day observing it.<br />

Littoral Zone — the site of coast which is flooded during<br />

inflow and is drained during outflow. Settles down<br />

between water levels in the highest inflow and the lowest<br />

outflow. Flooding and drainage of the littoral zone occurs<br />

EvENTS<br />

two times a day. On a drained strip there are many brown<br />

seaweed, but most of them are in the bottom part of littoral<br />

zone and close to the line of small water.<br />

Here seaweed forms a continuous belt basically of three<br />

kinds of a fukus. And there are enough gammarus dubeni,<br />

invertebrate sea animals. On the silted littoral zone, it is<br />

possible to see small sandy knolls. <strong>The</strong>se are the traces of<br />

the activity of a large polychaete, the lobworm (Arenicola<br />

marina). In silty sand live a lot of folding mollusks. <strong>The</strong><br />

most widespread is macoma baltica, mya Arenaria. It is easy<br />

to spot this mollusk by crescent traces about 5 centimeters<br />

long that it leaves. It gives out itself by large apertures on<br />

the surface of silty sand. On stones and other surfaces live<br />

motionless cancroid (Semibalanus balanoides). In the top<br />

part of littoral zone are usual saltish maximum plants: -<br />

saltwort, sea aster, triglochin sea and others.<br />

As a result of our research, we found 10 kinds of sea invertebrates<br />

in the littoral zone of the White <strong>Sea</strong> in area of the<br />

Filippovsky fish ponds:<br />

17

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