APHOTOMARINE

An educational resource dedicated mainly to the photography
and diversity of marine life that can be found in coastal waters
and intertidal areas of Great Britain and Ireland by David Fenwick.

A-P-H-O-T-O Wildlife Stock Image Library
Dasya sessilis Yamada, 1928 - A Red seaweed - "species requiring verification"
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Red seaweed
Dasya sessilis
- tip of branch 1

Red seaweed
Dasya sessilis
- tip of branch 2

Red seaweed
Dasya sessilis
- tetrasporangial stichidia 1

Red seaweed
Dasya sessilis
- tetrasporangial stichidia 2

Red seaweed
Dasya sessilis
- tetrasporangial stichidia 3

Species found on pontoon at Newlyn Marina, Newlyn Harbour, Newlyn, Cornwall. 02.11.14.

PAGE UPDATE 05.11.15.

It is very likely the specimen here is a species called Dasya sessilis, a non-native species from Japan. The find needs to be verified but if it is then this will be a new UK record. The species is already found in Spain, Portugal and France.

I'd like to thank Mike Wilcox for drawing my attention to the possibility. On sending images to various algae experts across Europe and the USA, their opinion was the same. Attempts will be made to re-find the species at Newlyn for verification in the USA.

AlgaeBase

AlgaeBase is a database of information on algae that includes terrestrial, marine and freshwater organisms.

Dasya sessilis Red Seaweed Images
The main objective of this website is in furthering environmental awareness and education through the medium of photography. To increase awareness and access to the wildlife of the region and help
people find and identify it. Sometimes the difference between species is obvious but many species can only be determined by observing microscopic characteristics that are specific to any one species.