Chlorophyll a and macro-nutrients concentrations during the ice breaker Shirase cruise of the 60th Japanese Antarctic Research Expedition ...

• Main Authors: Makabe, Ryosuke, Takao, Shintaro, Takahashi, Kunio, Odate, Tsuneo
• Format: Dataset
• Language: English
• Published: Arctic Data archive System (ADS), Japan 2021
• Subjects: OCEANS>OCEAN OPTICS>PHOTOSYNTHETICALLY ACTIVE RADIATION; OCEANS>OCEAN CHEMISTRY>CHLOROPHYLL; OCEANS>OCEAN CHEMISTRY>NITRATE; OCEANS>OCEAN CHEMISTRY>SILICATE; OCEANS>OCEAN CHEMISTRY>PHOSPHATE; Antarctic; Breaker; Antarc*
• Online Access: https://dx.doi.org/10.17592/001.2020070705; https://ads.nipr.ac.jp/dataset/A20200707-005

Chlorophyll a concentration is the most common indicator of phytoplankton biomass, basically regulated by macro-nutrients and light intensity. Therefore, long term monitoring of these parameters gives us fundamental information on ecosystem changes with climate changes. As part of the monitoring programs of the Japanese Antarctic Research Expedition (JARE), chlorophyll a concentration and macro-nutrients (nitrate, nitrite, phosphate and silicate) have been measured on board icebreakers Fuji and Shirase from JARE-14 in the 1972/73 season and from JARE-7 in the 1965/66 season, respectively. This report is the latest data determined during the Shirase cruise in 2018/19 season. ...