| Title |
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ja
北海道噴火湾におけるかいあし類Oithona属の季節的個体数変動
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en
Seasonal Abundance of Oithona (Copepoda, Cyclopoida) in Funka Bay, Hokkaido
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| Creator |
-
-
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ja
井出, さやか
en
Ide, Sayaka
-
|
| Accessrights |
open access |
| Subject |
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Other
en
Oithona similis
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Other
en
nauplii
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Other
en
Funka Bay
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Other
en
microbial food chain
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Other
en
reproduction
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NDC
663
|
| Description |
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Abstract
en
In order to elucidate the seasonal change in abundance of Oithona (Copepoda, Cyclopoida), monthly samplings were conducted from April 1999 to June 2000 at the center of Funka Bay, Hokkaido. After the intrusion of the Oyashio Coastal Water, spring bloom occurred and large sized phytoplankton (≧10μm) increased rapidly. In the surface layer (15m depth), Oithona nauplii dominated in the community of copepod nauplii in the bay throughout the year except in August. NI of them was abundant throughout the year except in April. The population density of Oithona nauplii decreased from November 1999 to March 2000. Then they increased from April to June 2000 and the maximum abundance was observed in May (30m depth, 47.3 inds.・l^[-1]).The vertical distribution of Oithona similis copepodids, which were dominated in the Oithona community, was related to small sized phytoplankton (<10μm), naked flagerates, and naked ciliates from October 1999 to June 2000. The results suggest that the biological production of Oithona similis was supported by the microplankton in the microbial food web in Funka Bay.
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| Publisher |
ja
水産海洋学会
en
Japanese Society of Fisheries Oceanography
|
| Date |
|
| Language |
|
| Resource Type |
journal article |
| Version Type |
VoR |
| Identifier |
HDL
http://hdl.handle.net/2115/38884
|
| Journal |
-
-
PISSN
0388-9149
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NCID
AN10063434
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ja
水産海洋研究
en
Bulletin of the Japanese Society of Fisheries Oceanography
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Volume Number67
Issue Number4
Page Start235
Page End243
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| File |
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| Oaidate |
2023-07-26 |
