Chlorophyll a and macronutrient concentrations during the icebreaker Shirase cruise of the 60th Japanese Antarctic Research Expedition

• Format: Article in Journal/Newspaper
• Language: English
• Published: National Institute of Polar Research 2021
• Subjects: Southern Ocean; chlorophyll a; macro-nutrients; Antarctic; Antarc*
• Online Access: http://id.nii.ac.jp/1434/00000025/; https://pdr.repo.nii.ac.jp/?action=repository_uri&item_id=39; https://pdr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=39&item_no=1&attribute_id=22&file_no=1; https://pdr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=39&item_no=1&attribute_id=22&file_no=2; https://pdr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=39&item_no=1&attribute_id=22&file_no=3

Chlorophyll a concentration is the most common indicator of phytoplankton biomass, basically regulated by physico-chemical properties such as temperature, salinity, macronutrients and light intensity. As part of the monitoring programs of the Japanese Antarctic Research Expedition (JARE), water temperature, salinity, chlorophyll a concentration, and macronutrients (nitrate, nitrite, phosphate, and silicic acid) have been determined since 1965. This report presents the latest data collected during the Shirase cruise in the 2018–2019 season.