Fig. 4.

Coronal diameter (CD in cm) to wet weight (g) relationship of P. periphylla medusae sampled during bottom trawling activities in three different areas of Trondheimsfjorden: Inner fjord (left panel), Middle fjord (intermediate panel) and Outer fjord (right panel) in the years 2018–2021. According to size, specimens were categorised as “embryonic developmental stage” (CD < 6 mm; dots), “immature” (CD: 6 to 57.3 ± 17.8 mm; triangles) and “mature” (>75.1 mm; squares) following data provided by Jarms et al. (2002).