Correction to: Scientific Reports https://doi.org/10.1038/s41598-018-22304-x, published online 01 March 2018

This Article contains errors.

In the legend of Figure 1,

“Phenotypic traits that justify the use of the model species. (a) Campula oblonga, (b) Bolbosoma capitatum and (c) Caligus elongatus as a model species of the biomass indirect estimation methods. Scale bars 0.5 mm, 2 cm and 5 cm respectively.”

should read:

“Phenotypic traits that justify the use of the model species. (a) Campula oblonga, (b) Bolbosoma capitatum and (c) Caligus elongatus as model species of the biomass indirect estimation methods. Scale bars 2, 20 and 1 mm, respectively.”

Additionally, in the legend of Figure 3

“Specimens and clay figurines of the model species. (a) Campula oblonga, scale bars 0.5 mm and 2 cm respectively; (b) Bolbosoma capitatum, scale bars 2 and 5 cm respectively; (c) Caligus elongatus, scale bars 1 mm, 5 and 5 cm respectively.”

should read:

“Specimens and clay figurines of the model species. (a) Campula oblonga, scale bars 2 and 20 mm, respectively; (b) Bolbosoma capitatum, scale bars 20 and 50 mm, respectively; (c) Caligus elongatus, scale bars 1, 50 and 50 mm, respectively.”

Finally, in the Materials and Methods section,

“Area By Depth By Density (Flat Section)”

should read:

“Area By Depth By Density (Flat Section) (Indirect Method 2.1)

“Volume Of Revolution By Density (Subcircular Section)”

should read:

“Volume Of Revolution By Density (Subcircular Section) (Indirect Method 2.2)”

“Complex Morphologies (combining flat and subcircular sections)”

should read:

“Complex Morphologies (combining flat and subcircular sections) (Indirect Method 2.3)”