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Aulographis japonica sp. nov. (Phaeodaria, Aulacanthida, Aulacanthidae), an abundant zooplankton in the deep sea of the Sea of Japan

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Title: Aulographis japonica sp. nov. (Phaeodaria, Aulacanthida, Aulacanthidae), an abundant zooplankton in the deep sea of the Sea of Japan
Authors: Nakamura, Yasuhide Browse this author
Imai, Ichiro Browse this author →KAKEN DB
Yamaguchi, Atsushi Browse this author →KAKEN DB
Tuji, Akihiro Browse this author →KAKEN DB
Suzuki, Noritoshi Browse this author →KAKEN DB
Keywords: Aulographis japonica
New species
The Sea of Japan
Issue Date: Aug-2013
Publisher: Plankton Society of Japan : Japanese Association of Benthology
Journal Title: Plankton & benthos research : a joint journal of the Plankton Society of Japan & the Japanese Association of Benthology
Volume: 8
Issue: 3
Start Page: 107
End Page: 115
Abstract: Zooplankton samples from the deep water of the Sea of Japan often contain yellowish semitransparent spheres (1.0–1.5 mm in diameter). We recognized these spheres as a single phaeodarian species (Cercozoa, Rhizaria) and described them as Aulographis japonica sp. nov. (family Aulacanthidae) in this paper. This species has a high abundance in the Japan Sea Proper Water (JSPW) and occasionally higher biomass than that of copepods. Molecular analysis based on 18S SSU rDNA revealed that Aulacantha scolymantha, which belongs to the same family as A. japonica, is closer to Aulosphaera trigonopa and Protocystis spp., which belong to different orders, than to the present species. The distribution of A. japonica is apparently restricted to low temperature water. Its biomass was the highest in the uppermost layer of JSPW, and this phaeodarian species was the second most important zooplankton below 250 m depth in terms of biomass among the total zooplankton groups. This is probably due to its generalist type of feeding. Considering its large biomass, A. japonica possibly plays an important role in matter cycles within the Sea of Japan.
Rights: © 2013 The Plankton Society of Japan
Type: article
Appears in Collections:水産科学院・水産科学研究院 (Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 山口 篤

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