The spread of Hoi lot (Solen Spp.) at Don Hoi lot Samut songkhram province in June and August, 2557 (2014) I found that there are entire tube clam common in June has a density in the range of 16-32 for per square meter. Water content in soil sediments in the range of 25.26-31.63 and quantity of organic compounds in soil sediments ranged 2.04-3.09 for in August with the density in the range of 3-20 samples per square meter. Water content in soil sediments ranged 24.56-29.87 and organic compounds in soil sediments ranged 1.76-5.14, therefore in this study showed that there is a density in the range 3-32 for per square meter, and from the statistical relationship between the water content in soil, sludge and sediment the size of Earth, with a population density of Hoi lot found no statistical correlation. And the relationship between the quantity of organic substances in soil sediments with a population density of Hoi lot found that having a relationship in the opposite direction — a statistical significant higher (p < 0.01)
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