FN Archimer Export Format PT J TI Optimization of diatom Hasleao strearia cultivation in different mediums and nutrients BT AF Arsad, S Stavrakakis, Christophe Turpin, Vincent Rossa, P Risjani, Y Sari, L A Prasetiya, F S Mouget, J-L AS 1:1;2:2;3:3;4:3;5:1;6:5;7:4;8:6; FF 1:;2:PDG-RBE-SGMM;3:;4:;5:;6:;7:;8:; C1 Universitas Brawijaya, Jl. Veteran Malang 65145, Indonesia IFREMER, Station Bouin Polder des Champs, 85230 Bouin, France Université de Nantes, 1 Quai de Tourville, 44035 Nantes, France Universitas Padjajaran, Jl. Raya Bandung Sumedang Jatinangor Bandung 45363, Indonesia Universitas Airlangga, Kampus C Mulyorejo Surabaya 60115, Indonesia Le Mans Université, Avenue Olivier Messiaen 72085 Le Mans, France C2 UNIV BRAWIJAYA, INDONESIA IFREMER, FRANCE UNIV NANTES, FRANCE UNIV PADJAJARAN, INDONESIA UNIV AIRLANGGA, INDONESIA UNIV LE MANS, FRANCE SI BOUIN SE PDG-RBE-SGMM IN WOS Ifremer UPR copubli-france copubli-univ-france copubli-int-hors-europe copubli-sud TC 1 UR https://archimer.ifremer.fr/doc/00484/59552/62535.pdf LA English DT Article AB Hasleaostrearia is a marine diatom that can feed oysters. This study aimed to cultivate H.ostrearia in the following media: seawater (SW), seawater filtered by activated carbon (SW+CA), and drilling water (DW). The three-water media were supplemented with two types of nutrients, Walne-Conway+silica (CS) and ES-1/3 Provasoli (P), leading to a six experiment series. The cultures were grown in 200 mL and 400 mL respectively. The dilution cycle was every 3 - 4 day for 200 mL volume and every 4 - 5 days for the 400 mL volume for 20 - 40 days or until the cultures showed a decrease in growth. The microalgae exhibited a better growth in SW and SW+CA CS, whereas DW showed a diminishing number of cells in both the CS and P medium. The highest value of Emn in the 200 mL volume presented in the SW CS medium (1.94 mg L−1) and in the SW+CA CS medium (8.16 mg L−1), while the lowest value of Emn was found in the SW+CA CS medium (0.42 mg L−1). Imn was apparent in the SW P medium (0.56 mg L−1). In conclusion, both SW CS and SW+CA CS showed a better performance in growth. The seawater was more stable during the experiment in both the 200 mL and 400 mL volumes. PY 2019 SO IOP Conference Series: Earth and Environmental Science SN 1755-1307 PU IOP Publishing VL 236 IS 1 UT 000471115400044 DI 10.1088/1755-1315/236/1/012044 ID 59552 ER EF