Oral-atrial length and developmental stage composition of Salpa thompsoni collected 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 2021
• Subjects: gelatinous zooplankton; Pelagic tunicate; Size-specificity; Southern Ocean; Southwest Pacific; Event label; Cruise/expedition; Cycle; Station label; Date/Time of event; Latitude of event; Longitude of event; DEPTH, water; Salpa thompsoni, length; Life stage; Ratio; Krill net; Measured using callipers; Visual identification; Calculated; TAN1810; Tangaroa; Salp Particle expOrt and Ocean Production SalpPOOP
• Online Access: https://dx.doi.org/10.1594/pangaea.930605; https://doi.pangaea.de/10.1594/PANGAEA.930605

Development stage composition (demography) of a Salpa thomsponi population was studied at the Chatham Rise, New Zealand in October and November 2018 using oblique krill net tows (2 mm mesh size, 3.2 m² mouth opening) in the top 200 m of the water column. Three areas with similar oceanographic characteristics were sampled over the course of three weeks. Development stages were defined for blastozooids and oozooids according to classifications from Foxton (1966) and Daponte et al. (2001). Oral-atrial length of salp specimens were measured and blastozooid/oozooid ratios calculated for each sampling event. ...