Daytime-dependent abundance of Salpa thomsponi during RV Tangaroa cruise TAN1810 to the Chatham Rise, New Zealand

• Main Authors: Lüskow, Florian, Pakhomov, Evgeny A, Stukel, Michael R, Décima, Moira
• Format: Dataset
• Language: English
• Published: PANGAEA - Data Publisher for Earth & Environmental Science 2021
• Subjects: gelatinous zooplankton; Pelagic tunicate; Size-specificity; Southern Ocean; Southwest Pacific; Event label; Cruise/expedition; Identification; Date/Time of event; Latitude of event; Longitude of event; DEPTH, water; Time of day; Life stage; Salpa thompsoni, length; Bongo net; Visual identification; Measured using callipers; TAN1810; Tangaroa; Salp Particle expOrt and Ocean Production SalpPOOP; New Zealand; Pacific
• Online Access: https://dx.doi.org/10.1594/pangaea.930607; https://doi.pangaea.de/10.1594/PANGAEA.930607

Daytime-dependent abundance changes of Salpa thomsponi within the top 200 m of the water column were studied at the Chatham Rise, New Zealand in October 2018 using oblique Bongo net tows (202 µm mesh size, 0.4 m² mouth opening). Specimens were identified to life cycle stage (blastozooid, oozooid) and measured for oral-atrial length. Differences in life cycle stage and length-frequency distribution patterns were compared among three consecutive days and nights.