Zooplankton samples from Heron net trawls along the 110°E meridian, eastern Indian Ocean, RV Investigator voyage IN2019_V03 (2019)

A Heron net (60 cm diameter, 100 μm mesh, drop net; (Heron, 1982) was used to sample zooplankton to a depth of 100 m at 20 stations equally spaced at 1.5o of latitude along the 110°E transect, from station 1 at 39.5oS to station 20 at 11.5oS. The Heron net samples on the downward drop and the net is closed when tension is applied to the line. The net falls at 1 ms-1 and so after 100 seconds, which is ~100 m, the line was stopped from free-flowing and the net retrieved. The net is closed and is not sampling on the upward haul. Voyage details (metadata, projects, other datasets either online or as downloads, publications and reports, events, maps etc) can be accessed at https://www.marine.csiro.au/data/trawler/survey_details.cfm?survey=IN2019_V03 If this data has been used in any products, please acknowledge with the following: We acknowledge the use of the CSIRO Marine National Facility (https://ror.org/01mae9353) in undertaking this research.

Citation: Davies, Claire H.,Beckley, Lynnath E.,Richardson, Anthony J. (2022) Copepods and mixotrophic Rhizaria dominate abundances in the oligotrophic Indian Ocean. Deep Sea Research Part II: Topical Studies in Oceanography pp105136-.

Published: November 30, 2023 at 03:23

URL: https://www.marine.csiro.au/ipt/resource?r=in2019_v03_zoop