What is that, thats moving?

[juliovideo]

What is that, thats moving?


http://s44.photobucket.com/albums/f39/ladrill0/acuario/?action=view&current=bichos.flv

http://s44.photobucket.com/albums/f39/ladrill0/acuario/?action=view&current=bichos1.flv


thank you

 

[rcmike]

That is wierd! Can you get a closer picture?

 

[stugray]

I am guessing something like a young barnacle..?....

Barnacles are a crustacean that attaches itself to something by its head, then uses its "feet" for filter feeding.

Maybe this one hasnt grown the shell yet.

That's my WAG.

Stu

 

[billsreef]

It's a Caprellid Amphipod, aka Skeleton Shrimp

 

[rcmike]

I thought I had seen just about everything but never seen one of those. The ocean never ceases to amaze me.

 

[djfrankie]

<a href=showthread.php?s=&postid=11882185#post11882185 target=_blank>Originally posted</a> by billsreef
It's a Caprellid Amphipod, aka Skeleton Shrimp

Right on!

Here's a link and a brief description:

http://www.icais.org/pdf/21Tuesday/B/tues_b_e_pm/Liz_Cook.pdf

Most likely came in with your NSW Julio.

There's more than just trace elements in there ain't it?

Enjoy!,

djfrankie

 

[stugray]

So, would those be a nuisance if introduced in to our tanks?

That link above states that they feed on hydroids!

I have a hydroid problem & this creature is the first that Ive heard of that feeds on hydroids.

Curious.

Stu

 

[shred5]

Never seen one before ... Tottally cool..

Dave

 

[billsreef]

I'd like to know the source for her "feeds on hydroids". I find them frequently on hydroids and macroalgaes, but only as a substrate to hang on to, not to eat. They actively catch plankton from the water column.

 

[scott84]

<a href=showthread.php?s=&postid=12016252#post12016252 target=_blank>Originally posted</a> by billsreef
I'd like to know the source for her "feeds on hydroids". I find them frequently on hydroids and macroalgaes, but only as a substrate to hang on to, not to eat. They actively catch plankton from the water column.

I'd second your request for a source. I've spent an unfortunate amount of time under a scope watching these guys, and have seen them lick a hydroid clean of diatoms, including the polyp, but never actually feed on it, although that is probably where the association originated. Maybe somewhere out there is a species that feeds on hydroids, but it isn't the norm. I feed my tank with them about once a month, and they never last long, everything seems to eat them!

 

[djfrankie]

<a href=showthread.php?s=&postid=12031162#post12031162 target=_blank>Originally posted</a> by scott84
I'd second your request for a source. I've spent an unfortunate amount of time under a scope watching these guys, and have seen them lick a hydroid clean of diatoms, including the polyp, but never actually feed on it, although that is probably where the association originated. Maybe somewhere out there is a species that feeds on hydroids, but it isn't the norm. I feed my tank with them about once a month, and they never last long, everything seems to eat them!

I guess that wouldn't be too hard to accomplish.

Here's the link to her email:

http://www.sams.ac.uk/research/sams-scientific-staff/Liz_Cook/

djfrankie