Publication Date:
2024-04-20
Description:
A total of eight deployments of an autonomous baited camera lander were conducted at the Cabo Verde Abyssal Plain (tropical East Atlantic, Lat. 14.72, Lon. -25.19, Water depth ~4200 m) using either Atlantic mackerel (Scomber scombrus, n=4) or Patagonian squid (Doryteuthis gahi, n=4) bait, to photograph organisms attracted to the bait over roughly 24 hours. The deployments took place during the iMirabilis2 campaign in August 2021 from the research vessel Sarmiento de Gamboa. A deep-sea time lapse camera system with an oblique view of the bait plate (12 cm x 45 cm) and surroundings took a picture every 150 seconds. The bar attached to the bait plate is 6 cm wide. The camera was located about 120 cm above the seafloor with an oblique view of 40 degrees (assuming straight down in 0 degrees). Annotations were performed in BIIGLE software (Langenkämper et al. 2017) on every second photograph, providing the morphospecies group label (or 'No ID' if to morphospecies level was not possible) and the taxonomic hierarchy to a level of best confidence for each annotation. Annotations were rectangular in shape, enclosing each individual so that the centre of the annotation was roughly the centre of mass, and the points of each rectangle corner are provided in pixels (x,y) where the lower left corner of the picture is 0,0. Images were 6000 pixels in width and 4000 pixels in height.
Keywords:
abyssal plain; ADCP data; AKS296; AKS298; AKS299; AKS301; AKS303; AKS305; AKS308; AKS311; BAIT-ADCP; baited camera lander; Baited camera lander with ADCP; Binary Object; Binary Object (File Size); Binary Object (Media Type); bottom current; Bounding box, x1; Bounding box, x2; Bounding box, x3; Bounding box, x4; Bounding box, y1; Bounding box, y2; Bounding box, y3; Bounding box, y4; Cabo Verde; Event label; Field experiment; File name; iAtlantic; Identification; Image analysis; iMirabilis2_Leg1; iMirabilis2_Leg1_11_AKS296; iMirabilis2_Leg1_19_AKS298; iMirabilis2_Leg1_26_AKS299; iMirabilis2_Leg1_36_AKS301; iMirabilis2_Leg1_47_AKS303; iMirabilis2_Leg1_57_AKS305; iMirabilis2_Leg1_73_AKS308; iMirabilis2_Leg1_79_AKS311; Integrated Assessment of Atlantic Marine Ecosystems in Space and Time; photographs; Sarmiento de Gamboa; scavenging; ship-based; Taxon/taxa; Taxon/taxa, unique identification (Semantic URI); Taxon/taxa, unique identification (URI); Taxonomic hierarchy; Taxonomist
Type:
Dataset
Format:
text/tab-separated-values, 572275 data points
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