sealord's Photos : Photo Keywords : 17 april 2007 - powered by SmugMug

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sealord > Guernsey Seashore fishes > Apletodon dentatus boulder field BG 170407 31-895 smg

sealord > This red errant polychaete was about 7 or 8 cm long. I found it in Belle Greve Bay on Guernsey's east coast on April 17, 2007. It was identified as Lysidice ninetta in the family eunicidae by Dr. Mary E. Petersen of the Darling Marine Center in Maine, USA; Dr. Daniela Iraci Sareri, University of Catania, Italy; Dr. Daniel Martin, Director, Centre d'Estudis Avancats de Blanes (CSIC), Spain; Guillermo Ruiz Cancino, Mexico; Dr. Salma Shalla based in the Isle of Man, UK; and Joana Zanol based in Washington, D.C., USA.

I contacted the polychaete researchers in April 2007 through the annelid email list -http://www.annelida.net/

Dr. Mary E. Petersen wrote "Lysidice ninetta appears to be the only UK eunicid with three antennae, no dorsal cirri on the apodous segment and the color pattern shown. Both the reddish anterior segments with fine white spots and the pale (white?) ring on chaetiger 2 should be diagnostic."
File No. BG 170407 28-895
©RLLord
fishinfo@guernsey.net

sealord > This red errant polychaete was about 7 or 8 cm long. I found it in Belle Greve Bay on Guernsey's east coast on April 17, 2007. It was identified as Lysidice ninetta in the family eunicidae by Dr. Mary E. Petersen of the Darling Marine Center in Maine, USA; Dr. Daniela Iraci Sareri, University of Catania, Italy; Dr. Daniel Martin, Director, Centre d'Estudis Avancats de Blanes (CSIC), Spain; Guillermo Ruiz Cancino, Mexico; Dr. Salma Shalla based in the Isle of Man, UK; and Joana Zanol based in Washington, D.C., USA.

I contacted them through the annelid email list - http://www.annelida.net/

For more information on this species please read the caption of the previous image.

File No. 170407 27-895
©RLLord
fishinfo@guernsey.net

sealord > This polychaete was discovered in Belle Greve Bay on Guernsey's east coast during a low spring tide on April 17, 2007. In April 2007 I contacted polychaete specialists on the annelid email list - http://www.annelida.net/ to identify this species for me.

Dr. Mary E. Petersen of the Darling Marine Center in Maine; Dr. Daniela Iraci Sareri in Italy; Dr. Daniel Martin, Director, Centre d'Estudis Avancats de Blanes (CSIC) in Spain; Guillermo Ruiz Cancino in Mexico; Dr. Salma Shalla based in the Isle of Man; and Joana Zanol in Washington, D.C. wrote to tell me it was the eunicid, Lysidice ninetta.

Dr. Mary Petersen wrote "Lysidice ninetta appears to be the only UK eunicid with three antennae, no dorsal cirri on the apodous segment and the color pattern shown. Both the reddish anterior segments with fine white spots and the pale (white?) ring on chaetiger 2 should be diagnostic."

Dr. Daniela Iraci Sareri wrote "Of Lysidice collaris Grube, 1870; Lysidice margaritacea Claparede, 1868; and Lysidice ninetta Audouin & Milne Edwards, 1833, L. collaris and L. margaritacea are warm-water species mainly recorded in Mediterranean Sea and Red Sea (lessepsian migrants) with the second less frequent than the other. Moreover L. ninetta is easy distinguishable from L. collaris because characterized by a white bar on the fourth setiger."

PhD candidate Joana Zanol wrote "The question about how many species of Lysidice are there in the English Channel is a tricky one. Around 30 species of Lysidice have been described for the whole world, but most have been synonymized so only the names collaris and ninetta are being used around the world. Most specimens in the English Channel are probably identified as Lysidice ninetta . Lysidice ninetta is a pretty close identification for your specimen and English Channel specimens in general because the type specimens were from the Chausey Islands. Lysidice collaris type specimens were from the Red Sea."

Guillermo Ruiz Cancino wrote that "Lysidice ninneta Audouin & Milne Edwards, 1833, is cosmopolitan, nevertheless recent studies have demonstrated that it can be a complex of species and not to be a single species."

Dr. Daniel Martin based in Spain wrote "your worm seems clearly to be Lysidice ninneta. This was the most currently cited species in Mediterranean waters, where often two colour patterns were distinguished. I was able to identify two different species. The reddish one with a whitish collar effectively corresponded to L. ninetta, but the pale brownish one was L. collaris Grube, 1870. Both were equally frequent and shared simultaneously the same habitats (in my case, calcareous algae aggregates)."

File No. 170407 25-895
©RLLord
fishinfo@guernsey.net

sealord > This is a view of the south side of the peninsula of raised rock looking east towards the Quaine pole in Belle Greve Bay on Guernsey's east coast. This image shows the shore at low water during the afternoon spring tide of the 17 April 2007. The Laminaria ochroleuca kelps have been exposed. Thongweed, Himanthalia elongata, and red algae drape over bedrock and boulders. Patches of green Enteromorpha seaweed cover the ground. At the top of the image, in the middle, there is an outcrop of rock with an opening to a small cave in the centre which is where European sting winkles, Ocenebra erinacea, produced egg capsules during the spring tides of 17 and 18 April 2007. The yellow jacket of an ormer gatherer can be seen in the upper left-hand corner of the image.
File No. BG 170407 7917
©RLLord
fishinfo@guernsey.net

sealord > This orange sponge, Hymeniacidon perleve, is common and conspicuous half way down the shore in Belle Greve Bay. It grows on rock surfaces which are exposed at low tide to direct sunlight and wind. The sponge grows in patches about 15 cm across. This image was taken on the 17 April 2007.
File No. BG 170407 7972
©RLLord
fishinfo@guernsey.net

sealord > The European sting winkle, Ocenebra erinacea, laying egg capsules on the roof of a small cave in Belle Greve Bay on Guernsey's east coast on the 17 April 2007. Three egg laying sting winkles can be seen in the image. One of them at the bottom of the image has a coralline algae covered shell.

File No. BG 170407 7922
©RLLord
fishinfo@guernsey.net

sealord > This is an image of the steps leading down to the beach on the eastern side of the Salerie Corner quay which is at the southern end of Belle Greve Bay. Gutweed, Enteromorpha sp. and Porphyra sp. colonises the steps on the 17 April 2007 making them very slippery. This image when compared with the previous image shows the rapid growth of seaweed on these steps. The boulder in the top left-hand corner of the image which was almost clear of seaweed on the 2 April (shown in the previous image) is almost completely covered now. The boulder can be used as a reference to compare both images.

File No. 170407 7904
©RLLord
fishinfoguernsey.net

sealord > Two shore clingfish, Lepadogaster lepadogaster, guard their sheet of eggs, which they have attached to the base of a boulder in Quaine gully in Belle Greve Bay on Guernsey's east coast. Clingfish are well-adapted to living in gullies because their modified pelvic fins allow them to adhere to the substrate so they don't get swept away by strong water flows rushing up and down the gully. The eggs in the sheet have been deposited on two separate occasions as the darker orange eggs are more advanced in development than the pale yellow eggs, which have been laid recently.
Photographed on the 17 April 2007.
File No. BG 170407 7936
©RLLord
fishinfo@guernsey.net

Apletodon dentatus boulder field BG 170407 31-895 smg

Guernsey Seashore fishes > Apletodon dentatus boulder field BG 170407 31-895 smg

Apletodon dentatus boulder field BG 170407 31-895 smg

See photo in original gallery.

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