Study of eukaryotic diversity in cold seep sediment of the Okhotsk Sea
鄂霍次克海冷泉沉积物真核生物多样性的初步研究

The eukaryotic diversity in the sediment sampled from the Okhotsk Sea was evaluated using direct isolation of internal transcribed spacer (ITS) rRNA genes by PCR and sequencing of cloned fragments. It is shown from the results that the eukaryotic community exhibited high diversity and all of the sequences were from three groups: algae, fungus and microzooplanktons. The constructions of algal and microzooplanktonic communities were consistent with previous ecological research results in this area. Interestingly, we found that the fungal community showed relatively high diversity, which provided clues for further research.