Surface chlorophyll a distribution in marginal ice zone in Antarctica, 1984/85

• Main Authors: Yasushi Fukuda, Masao Ohno, Mitsuo Fukuchi
• Format: Report
• Language: English
• Published: Faculty of Education, Kumamoto University/Usa Marine Biological Institute, Kochi University/National Institute of Polar Research 1986
• Subjects: Antarctic; Austral; Breid Bay; The Antarctic; Antarc*; Antarctica; ice algae; Memoirs of National Institute of Polar Research; Polar Research; Sea ice
• Online Access: https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2029; http://id.nii.ac.jp/1291/00002029/; https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2029&item_no=1&attribute_id=18&file_no=1

Chlorophyll α concentrations of surface layer were measured at 108 stations in the Antarctic waters south of 63°S including the pack ice and the fast ice regions along the course of the SHIRASE during the 1984-85 austral summer. High chlorophyll α concentration was observed in the pack ice and the fast ice regions between late December and early January. This high value seems to be correlated with the release of so-called ice algae which proliferated at the bottom part of sea ice. After the disappearance of the sea ice, chlorophyll α concentration in the open water decreased abruptly and became low. After passing through a period of two or three months, the high concentration of chlorophyll α was observed again within Lutzow-Holm Bay and Breid Bay. The growth of the planktonic algae seems to occur in these regions during the austral summer.