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

Umbraulva dangeardii M.J.Wynne & G. Furnari - A possible non-native Green seaweed

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Green seaweed
Umbraulva dangeardii
formerly Umbraulva olivascens
- frond 1

Green seaweed
Umbraulva dangeardii
formerly Umbraulva olivascens
- frond close-up 1

Green seaweed
Umbraulva dangeardii
formerly Umbraulva olivascens
- frond close-up 2

Green seaweed
Umbraulva dangeardii
formerly Umbraulva olivascens
- with Ulva lactuca 1

Green seaweed
Umbraulva dangeardii
formerly Umbraulva olivascens
- with Ulva lactuca 2

Green seaweed
Umbraulva dangeardii
formerly Umbraulva olivascens
- frond 2

Green seaweed
Umbraulva dangeardii
formerly Umbraulva olivascens
- frond base 1

Green seaweed
Umbraulva dangeardii
formerly Umbraulva olivascens
- underwater 1

Green seaweed
Umbraulva dangeardii
formerly Umbraulva olivascens
- underwater 2

Specimens above found as a fouling species on pontoons at Newlyn Marina, Newlyn, Cornwall. 17.10.14, 07.11.14 and 01.12.14.

Green seaweed
Umbraulva dangeardii
formerly Umbraulva olivascens
- specimen 2.4m in length 1

Green seaweed
Umbraulva dangeardii
formerly Umbraulva olivascens
- specimen 2.4m in length 2

Green seaweed
Umbraulva dangeardii
formerly Umbraulva olivascens
- close-up 1

Green seaweed
Umbraulva dangeardii
formerly Umbraulva olivascens
- close-up 2

The 2.4m specimen above was found as a fouling species on pontoons at Newlyn Marina, Newlyn, Cornwall, 05.05.18.

Green seaweed
Umbraulva dangeardii
formerly Umbraulva olivascens
- cell structure 1

Green seaweed
Umbraulva dangeardii
formerly Umbraulva olivascens
- cells 1

Green seaweed
Umbraulva dangeardii
formerly Umbraulva olivascens
- with 0.01mm division rule 1

Green seaweed
Umbraulva dangeardii
formerly Umbraulva olivascens
- with 0.01mm division rule 2

Microscopic images of cells of specimen found at Newlyn Marina, Newlyn, Cornwall, 07.05.18.

Green seaweed
Umbraulva dangeardii
formerly Umbraulva olivascens
- close-up 3

Green seaweed
Umbraulva dangeardii
formerly Umbraulva olivascens
- plant washed-up 1

Specimen above found washed-up on the shore, west of Trefusis Point, Flushing, near Penryn, Cornwall, 22.03.15.

Umbraulva dangeardii M.J.Wynne & G. Furnari was formerly Umbraulva olivascens (P.J.L. Dangeard) G. Furnari, nom. inval.

Thanks go to Professor Michael Guiry and Svenja Heesch who confirmed the species by DNA testing.

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

Umbraulva dangeardii olivascens non native alien Green 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.