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  • Zooplankton data collected from 15 net hauls on James Clark Ross cruise JR58. Data relate mainly to krill and salps that entered the net during hauls where TUBA data were collected. Raw data held in Excel spreadsheets and include krill length photos. Plankton samples taken from nets have been collected. These are presently stored at BAS in the Marine Specimen Store. Analysis of these samples has been undertaken and samples should be retained for 5 years from completion of project and then assessed in light of other plankton datasets held. Nets were used to collect samples of zooplankton and micromekton.

  • Bioacoustic data collected aboard the James Clark Ross cruise JR58 in 2001. A net-mounted multi-frequency sonar - TUBA (Towed Undulating BioAcoustics) - was deployed on 15 of the net hauls made during this cruise. Data consists of acoustic backscatter measured at 4 frequencies (175, 250, 370 and 920kHz). The backscatter is attributed mainly to Antarctic krill (Euphausia superba) and salps (Salpa sp) and was collected as part of a project to determine the structure of zooplankton aggregations by multi-frequency acoustics and nets.