Enrichment of alkanes within a phytoplankton bloom during an in situ iron enrichment experiment in the western subarctic Pacific

2009 ◽  
Vol 115 (1-2) ◽  
pp. 92-101 ◽  
Author(s):  
Sohiko Kameyama ◽  
Urumu Tsunogai ◽  
Fumiko Nakagawa ◽  
Motoki Sasakawa ◽  
Daisuke D. Komatsu ◽  
...  
Keyword(s):  
Phytoplankton Bloom ◽  
Subarctic Pacific ◽  
Iron Enrichment ◽  
Western Subarctic Pacific

Laboratory observations on early development of the oncaeid copepod Triconia canadensis from the mesopelagic zone of the western subarctic Pacific

2007 ◽  
Vol 87 (2) ◽  
pp. 479-482 ◽  
Author(s):  
Yuichiro Nishibe ◽  
Tsutomu Ikeda
Keyword(s):  
Lipid Droplets ◽  
Development Time ◽  
Hatching Success ◽  
Egg Development ◽  
Egg Hatching ◽  
Subarctic Pacific ◽  
Western Subarctic Pacific ◽  
Mesopelagic Zone ◽  
Life Cycle Strategy

Egg development time and hatching success were determined for the oncaeid copepod, Triconia canadensis, from the mesopelagic zone of the western subarctic Pacific. The egg development time was estimated to be 74.7–84.5 days at in situ temperature (3°C), which is much longer than those reported previously on the other oncaeid copepods even if the differences in experimental temperatures are taken into account. The egg hatching success varied between 50 and 100%, with a grand mean of 88%. The newly hatched nauplii of T. canadensis were elongate ellipsoid in shape, and had many large-sized lipid droplets in their body. Possible adaptive significance of apparent longer egg developmment time of T. canadensis is discussed in the light of their life cycle strategy.

Responses of diatoms to iron-enrichment (SEEDS) in the western subarctic Pacific, temporal and spatial comparisons

2005 ◽  
Vol 64 (2-4) ◽  
pp. 189-205 ◽  
Author(s):  
Atsushi Tsuda ◽  
Hiroshi Kiyosawa ◽  
Akira Kuwata ◽  
Mamiko Mochizuki ◽  
Naonobu Shiga ◽  
...  
Keyword(s):  
Subarctic Pacific ◽  
Iron Enrichment ◽  
Western Subarctic Pacific ◽  
Temporal And Spatial

Biogeochemical cycling of N and Si during the mesoscale iron-enrichment experiment in the western subarctic Pacific (SEEDS-II)

2009 ◽  
Vol 56 (26) ◽  
pp. 2852-2862 ◽  
Author(s):  
Hiroaki Saito ◽  
Atsushi Tsuda ◽  
Yukihiro Nojiri ◽  
Takafumi Aramaki ◽  
Hiroshi Ogawa ◽  
...  
Keyword(s):  
Biogeochemical Cycling ◽  
Subarctic Pacific ◽  
Iron Enrichment ◽  
Western Subarctic Pacific

Evidence for the grazing hypothesis: Grazing reduces phytoplankton responses of the HNLC ecosystem to iron enrichment in the western subarctic pacific (SEEDS II)

2007 ◽  
Vol 63 (6) ◽  
pp. 983-994 ◽  
Author(s):  
Atsushi Tsuda ◽  
Shigenobu Takeda ◽  
Hiroaki Saito ◽  
Jun Nishioka ◽  
Isao Kudo ◽  
...  
Keyword(s):  
Subarctic Pacific ◽  
Iron Enrichment ◽  
Western Subarctic Pacific
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