FN Archimer Export Format PT C TI Utilisation du submersible Cyana pour l'etude du macroplancton fragile OT Use of the Cyana submersible to study the gelatinous macroplankton BT AF LAVAL, P AS 1:; FF 1:; UR https://archimer.ifremer.fr/doc/1990/acte-1152.pdf LA French DT Proceedings paper DE ;Pelagic environment;Zooplankton;Ecosystems;Deep water;Manned vehicles AB The gelatinous macroplanktonic organisms living in the deep sea can only be studied with manned submersibles. There is presently in increasing interest in the study of the role of this part of the pelagic ecosystem, because they are strongly involved in the transformation of the particulate organic matter. Their transparency, small size and mobility present technical challenges, unanticipated by the designers of the first submersibles, aimed at the sea bottom observation. Despite these limitations, the use of conventional submersibles has brought very interesting results. It is hoped that engineers will take into account the requirements of pelagic observations in the design of future submersibles. PY 1990 PD DEC CT Actes de colloques. Ifremer. Brest [ACTES COLLOQ. IFREMER.]. 1991 ID 1152 ER EF