At a depth of approx. 400 m, a vertical daylight tow brought up 10 large Periphylla jellies, and 1 small medusa. From here, various morphological measurements were noted down, and tissue removed for laboratory analysis post-cruise.
Jellies being hauled to the surface using the net constructed by Leon Pedersen. |
Periphylla are covered in red pigment, porphyrin, which degrades when exposed to light, killing the jellies. |
Periphylla can reach considerable sizes, and weigh up to a kilo. |
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