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J27 - J’ai une équipe formidable. Thank you Bob
Voici les 2 messages que Bob a envoyé à Lolive qui lui demandait des renseignements sur les moules collées au rafiot. C’est très sympa de sa part. Très sincèrement merci, maintenant je sais que si je suis en situation de survie, je vire l’antifouling et je cultive. Pour ceux qui ne lise pas l’anglais, ils ont bien un pote qui baragouine un peu et qui va le leur traduire
From : Robert Van Syoc, Ph.D. (Bob)
Senior Collection Manager, Invertebrates
California Academy of Sciences
55 Music Concourse Drive
San Francisco, CA 94118
1er message du 06 Juillet
Dear Olivier,
It seems unlikely to me that Serge has Pollicipes elegans attached to his boat. This species is known only from rocks along continental margins. For some reason, it does not attach to boats, even those in harbors near natural populations of Pollicipes. It does seem likely that Serge has Lepas sp. attached to his boat, similar to those you call "anatifes". Or, they may be Conchoderma sp. which have fleshy heads that lack any shell. If Serge can post an image of them, I could tell you the genus and perhaps the species.
From : Robert Van Syoc, Ph.D. (Bob)
Senior Collection Manager, Invertebrates
California Academy of Sciences
55 Music Concourse Drive
San Francisco, CA 94118
1er message du 06 Juillet
Dear Olivier,
It seems unlikely to me that Serge has Pollicipes elegans attached to his boat. This species is known only from rocks along continental margins. For some reason, it does not attach to boats, even those in harbors near natural populations of Pollicipes. It does seem likely that Serge has Lepas sp. attached to his boat, similar to those you call "anatifes". Or, they may be Conchoderma sp. which have fleshy heads that lack any shell. If Serge can post an image of them, I could tell you the genus and perhaps the species.
"Anatifes. Il parait que ça se mange"
In any case, I don’t know any way that Serge can keep them off his boat unless he pulls it into dry dock and paints the bottom with "antifouling" paint. I would think that if Serge can clean/scrape them off the boat hull, they will be less likely to re-colonize his boat as he gets more into the open ocean, where there are probably fewer larvae.
Best of luck to Serge in his adventure !
Bob
2ème message du 7 Juillet
Dear Olivier,
The photo sent by Serge is a species of barnacle in the genus Lepas. These are pelagic barnacles that commonly attach to objects (like fishing floats and boats) floating about in the open ocean. I’ve never eaten them, but I don’t know any reason not to try them. Serge could cook them briefly in boiling water, then slice open the fleshy stalks to eat the muscle and tissue inside the stalk. Ask him to tell me how they taste ! These barnacles were once (in the 1500s) considered to be the larvae of
geese, because of their long "necks" and shell (with feathery legs) attached to floating logs (thought to be trees that fell into the water with the developing "geese" still attached). For that reason, they are still sometimes called goose barnacles. I’ve attached a jpg of an old woodcut showing geese hatching from goose barnacles. You see that those hatching and falling onto land became geese and those falling into water became fish.
In any case, I don’t know any way that Serge can keep them off his boat unless he pulls it into dry dock and paints the bottom with "antifouling" paint. I would think that if Serge can clean/scrape them off the boat hull, they will be less likely to re-colonize his boat as he gets more into the open ocean, where there are probably fewer larvae.
Best of luck to Serge in his adventure !
Bob
2ème message du 7 Juillet
Dear Olivier,
The photo sent by Serge is a species of barnacle in the genus Lepas. These are pelagic barnacles that commonly attach to objects (like fishing floats and boats) floating about in the open ocean. I’ve never eaten them, but I don’t know any reason not to try them. Serge could cook them briefly in boiling water, then slice open the fleshy stalks to eat the muscle and tissue inside the stalk. Ask him to tell me how they taste ! These barnacles were once (in the 1500s) considered to be the larvae of
geese, because of their long "necks" and shell (with feathery legs) attached to floating logs (thought to be trees that fell into the water with the developing "geese" still attached). For that reason, they are still sometimes called goose barnacles. I’ve attached a jpg of an old woodcut showing geese hatching from goose barnacles. You see that those hatching and falling onto land became geese and those falling into water became fish.
"Old woodcut showing geese hatching from goose barnacles"
Of course, Serge may use my comments in his web postings. I’ll follow his progress across the Pacific with great interest !
All the best,
Bob