Krabbor?

[bb81]

Hej, vad kan detta vara för krabbor?

Hittade dem i en mjukkorall.

Genomskinliga ben/klor. blått mönster samt lite brunt.

Skadliga? kanske de äter av korallen då dom har hållt sig där hela tiden?

[Laggeman]

Vad för mjukkorall är det?

[Yodelking]

Jag kollade här http://se.reeflex.net/kategorie/58.html men kunde inte se nån direkt som var lik... vad söta de är!

[bb81]

Vad för mjukkorall är det?

Hej, i denna korall:

Har dock ingen ID på den

[Laggeman]

Ser ju ut som en vanlig Xeniakolloni du har. Krabborna ser väldigt fina ut, Vill du inte ha dem tar jag dem gärna.

[bb81]

Kan vara ngn typ av xenia, dock ingen pulserande sådan.

Krabborna verkar inte vara allt för vanliga, kan inte hitta ngn info eller bilder på liknande.

[turboadde]

Jag har sett sånna krabbor i just xenia förr hittar inte så mycket info om dom men kanske det här kan hjälpa.

Xanthid crabs superficially resemble swimming crabs (see later) but note that the hind legs are of the clinging type in Xanthids not paddle shaped. Over recent years there is one species of crab which has become much more commonly encountered than in the past. This is due to the increased amount of pulsing Xenia spp. imported for the aquarium trade. The white pearlescent Xenia crab is often found ensconced in even surprisingly small colonies of Xenia soft coral. The nature of the beast is difficult to ascertain. Early encounters suggested that the crab was a harmless commensal species perhaps living off the mucus of the coral. Due to the increased volume of encounters with this animal a different story seems to be emerging. That the pulse coral is bothered by the presence of the crab is certain. I have witnessed small colonies shrink in size due to its presence. It could be that larger colonies are not bothered unduly by its behaviour as the disturbance will be shared by most of the colony rather than a small area as in the case of smaller pieces. However, there are reliable reports of the crab consuming the Xenia itself often after the colony has become damaged in some way. For this reason I must recommend removal of this undoubtedly beautiful creature.

MVH Andreas

[stigigemla]

Du kan ju kolla litet på Anthelia också. Jag skulle sätta tillbaka krabborna. De är ju helt klart skyddsfärgade i korallen så jag tror de kommer att hålla sig där. Så länge korallen mår bra är väl allt bra. Om någon biter på den drar den ihop sig så det är ju lätt att se.

[bb81]

Jag har sett sånna krabbor i just xenia förr hittar inte så mycket info om dom men kanske det här kan hjälpa.

Xanthid crabs superficially resemble swimming crabs (see later) but note that the hind legs are of the clinging type in Xanthids not paddle shaped. Over recent years there is one species of crab which has become much more commonly encountered than in the past. This is due to the increased amount of pulsing Xenia spp. imported for the aquarium trade. The white pearlescent Xenia crab is often found ensconced in even surprisingly small colonies of Xenia soft coral. The nature of the beast is difficult to ascertain. Early encounters suggested that the crab was a harmless commensal species perhaps living off the mucus of the coral. Due to the increased volume of encounters with this animal a different story seems to be emerging. That the pulse coral is bothered by the presence of the crab is certain. I have witnessed small colonies shrink in size due to its presence. It could be that larger colonies are not bothered unduly by its behaviour as the disturbance will be shared by most of the colony rather than a small area as in the case of smaller pieces. However, there are reliable reports of the crab consuming the Xenia itself often after the colony has become damaged in some way. For this reason I must recommend removal of this undoubtedly beautiful creature.

MVH Andreas

Tack för det svaret, det låter ju helt rätt.

Den lilla kolonin har inte växt utan verkar snarare dra ihop sig. Kanske är en pulsernade Xenia men har störts av krabborna.

Tror jag tar och byter bort dessa rariteter =) Laggeman?

[Laggeman]

Du har PM.

[Kendra]

Jag har sett sånna krabbor i just xenia förr hittar inte så mycket info om dom men kanske det här kan hjälpa.

Xanthid crabs superficially resemble swimming crabs (see later) but note that the hind legs are of the clinging type in Xanthids not paddle shaped. Over recent years there is one species of crab which has become much more commonly encountered than in the past. This is due to the increased amount of pulsing Xenia spp. imported for the aquarium trade. The white pearlescent Xenia crab is often found ensconced in even surprisingly small colonies of Xenia soft coral. The nature of the beast is difficult to ascertain. Early encounters suggested that the crab was a harmless commensal species perhaps living off the mucus of the coral. Due to the increased volume of encounters with this animal a different story seems to be emerging. That the pulse coral is bothered by the presence of the crab is certain. I have witnessed small colonies shrink in size due to its presence. It could be that larger colonies are not bothered unduly by its behaviour as the disturbance will be shared by most of the colony rather than a small area as in the case of smaller pieces. However, there are reliable reports of the crab consuming the Xenia itself often after the colony has become damaged in some way. For this reason I must recommend removal of this undoubtedly beautiful creature.

MVH Andreas

Svaret till den post som du citerar (från http://www.myfishtank.net/forum/saltwater-general-discussion/53253-xenia-crab.html) bör kanske visas upp också för "ordningens" skull - det kan ju vara krabbor som lever i symbios med xenian . Jag har två stycken små liknande krabbor som bor i en av mina acroporor, och den verkar trivas alldeles utmärkt med sällskapet (har haft både acroporan och krabborna i fem månader nu).

Thanks TRe, check out this link too. My colony is a decent size so I'm thinking it'll be ok.

BBC - Science & Nature - Sea Life - Fact files: Xanthid crab