white bream Diplodus sargus Sea Fresh Guernsey 110413 ©RLLord 6842 smg
Atlantic salmon Salmo salar David Philipp Pembroke Guernsey 110413 ©RLLord 6822 smg
Atlantic salmon, Salmo salar, caught by Philip Lomax over Godine bank near Sark, Bailiwick of Guernsey at midday on 7 April 2012. The fish weighed 2799 grams and had a standard length of 530 mm and a length to the distal margin of the middle of the caudal fin of 596 mm.  The salmon was captured using a live sand eel for bait. It had two copepod parasites by the right eye and one on the right flank of the body.  The salmon had 19 gill rakers on the first gill arch on the right side.

File No. 070412 0391
©RLLord
fishinfo@guernsey.net
Three flatworms are in this photograph of a small area of a compound ascidian (or sea squirt) Botrylloides sp..  The native species of this ascidian is Botrylloides leachi but the invasive ascidian Botrylloides violaceus is spreading in the English Channel and it is not yet known whether this ascidian colony is the invasive species or the native species.  Dr. John Bishop and Dr. Gretchen Lambert tell me that the easiest way to tell the ascidian colonies apart is by looking at the ascidian larvae, which are not visible in this colony.  World authority on ascidians, Dr. Gretchen Lambert wrote "I also wondered if the orange Botrylloides is Botrylloides violaceus. I looked very carefully at the photo but there are no visible brooded embryos, which are the best way to tell this species (apart from the native species Botrylloides leachi)."  Dr. Lambert recommends that I collect some colonies, tear them apart carefully, and look for huge brooded larvae in the tunic. "They will usually be pink, no matter what the colour of the colony is."  She writes "Botrylloides violaceus colonies are always a solid color--all orange, or all purple, etc. The larvae are more than 1 mm in diameter, spherical, and when mature have 24-32 lateral ampullae arranged in parallel around the anterior end like a little mop. In Botrylloides leachi the larvae are small, and brooded inside the zooids and not in the tunic."  

There appear to be two species of flatworm in this image of a close-up of the ascidian colony.  One of the flatworms is gliding over another and heading to the lower right of the image. This image was taken south of the Lihou Island causeway on Guernsey's west coast on the 10 May 2009.  The cryptic coloration of the flatworms makes them difficult to see.  After 14 years of rock pooling on Guernsey's coast this is the first time I have noticed these flatworms.  Their identity has not yet been determined.  But they appear to be common.  This link provides a possible identification, which remains to be verified:   http://www.rzuser.uni-heidelberg.de/~bu6/flat0482.html
File No. 100509 3973
©RLLord
fishinfo@guernsey.net
Goniodoris castanea south Lihou causeway 100509 ©RLLord 4069 smg
Aplysia deplians BG pool 250108 2503 smg
This view of the side of one of the pontoons attached to the fish quay in St. Peter Port harbour, Guernsey shows on the left colonies of the pink soft coral, Alcyonium hibernicum, and on the right a dahlia anemone, Urticina felina.  In the centre of the image ascidian siphons are covered by an orange bryozoan colony.  Emeritus Professor of marine biology John Ryland from Swansea University, Wales has identified this bryozoan as belonging to the genus Watersipora. It is an invasive species that has not been recorded before in the British Isles.  Photographed on the 21st September 2007.
File No. 210907 1086
©RLLord
fishinfo@guernsey.net
I need to confirm the identification of this anemone, which was in a pool on the floor of the Mouton cave on Sark's west coast.  I think it is Sagartia. Unfortunately, I didn't look at the column to confirm identification.
File No. 120907 852
©RLLord
fishinfo@guernsey.net
This sea slug, Tritonia plebeia, was found gliding along the side of a pontoon in the Queen Elizabeth II marina on the 26 April 2007.  It was collected for photography in an aquarium and then returned to the marina the following day.
File No. 35-901
©RLLord
fishinfo@guernsey.net
white bream Diplodus sargus Sea Fresh Guernsey 110413 ©RLLord 6842 smg
white bream Diplodus sargus Sea Fresh Guernsey 110413 ©RLLord 6842 smg
white bream Diplodus sargus Sea Fresh Guernsey 110413 ©RLLord 6842 smg
See photo in original gallery.