Nassarius reproduction

lachrimae · #1 05/26/2006, 11:21 PM

I noticed in a past article from Dr. Shimek that, at the time of the article (not sure of the date), captive reproduction of Nassarius was pretty uncommon.

Is this still the case?

I have been watching them reproduce and grow into juveniles in my 135g for the past 3 or 4 months and have wondered if this is a fairly unique occurence.

I'm not sure how many of them have made it past the 'white dot' stage but I've probably seen at least 15 of them that have definitely survived.

Mark

xdusty6920 · #2 05/27/2006, 12:25 AM

ive had massive clumps of "white dots" show up in patches on my glass several times but ive never seen any of them actually develope into anything. they do however hatch because i later see them burst open and just and empty clear cell.

lachrimae · #3 05/27/2006, 01:02 AM

Sorry, should have clarified that the "developed" ones have shells and move around like a regular Nassarius, just much smaller. Probably about the size of a pin head right now I'd say.

Samala · #4 05/27/2006, 01:41 AM

I think reproduction of true Nassarius is still uncommon, but I might be wrong.

Reproduction and successful rearing of Ilyanassa obsoleta, often sold as 'black nassarius', is much more common. The funny thing is, of course, that researchers tend to have trouble with it.. while aquarists do it without even trying in most cases.

>Sarah

lachrimae · #5 05/27/2006, 01:53 AM

I don't know Nassarius very well but these have white bodies and the typical gray conical shells.

They run around on skate boards just like their grown up counterparts.