| Title | Processed imagery data collected off the western margin's deep-sea environment on Algoa Voyage 246, February 2018 |
|---|---|
| Authors |
Filander, Zoleka Atkinson, Lara Wozniak, Donia Snyders, Laurenne |
| Publisher | Department of Forestry, Fisheries and the Environment (2022) |
| Contributors |
Contact Person: Filander, Zoleka Project Member: Atkinson, Lara Project Member: Wozniak, Donia Project Member: Snyders, Laurenne |
| Abstract | The aim of the Integrated Ecosystem Program (IEP) Benthic Project is to establish a baseline for epi-benthic invertebrate distribution, in order to identify benthic indicators for long-term monitoring within the pre-determined IEP monitoring lines. Ten stations were successfully surveyed, on board the R/V Algoa in February 2018, using a towed under-water benthic camera. The acquired abundance data represents five stations from the Kleinsee transect, four from Namaqua and one from St Helena Bay. |
| Methods | Only clear, in-focus images of the seabed, with three laser points visible, were processed using TransectMeasure (http://www.seagis.com.au/). Species were therefore identified, counted, and area quantified with a laser calibration file generated using CAL software (http://www.seagis.com.au/). Species per area was standardised. |
| Data | |
| Temporal extent | 14 Feb 2018 – 22 Feb 2018 |
| Geographic extent |
West Coast, South Africa
North: -29.446 |
| Vertical extent |
Max: -230.0 m Min: -430.0 m |
| Keywords | Algoa , Algoa 246 , EOV: Biology and Ecosystems > Invertebrate abundance and distribution (emerging) , SOUTH ATLANTIC OCEAN , upwelling system , western margin |