Repeat spawning of Dekeyseria picta L052

All posts regarding the care and breeding of these catfishes from South America.
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Baardman
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Re: Repeat spawning of Dekeyseria picta L052

Post by Baardman »

They are like rabbits now lol

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bekateen
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Re: Repeat spawning of Dekeyseria picta L052

Post by bekateen »

And another new spawn overnight last night! This time, for the first time I've seen in this cave, on the roof of the cave. They were getting kinky last night! :-$ :- :YMAPPLAUSE: =)) #CoronavirusSexyTime!
Screenshot_20200320-103543_Photos~2.jpg
And an update on spawn #6 from either March 07 or 08: That dad lost or abandoned his eggs a few days later. I found the egg mass loose in the tank and moved it to a basket. Eggs started hatching 2 or 3 days ago, and now only 3 eggs remain, all looking good and still developing (nearly done). This batch had a great hatch rate, in spite of their rough time getting lost by dad and snagged on a rock in the strong current.

Compared to all other plecos I've spawned, hatching in this species is really protracted, starting around day 8 or 9 (and most of those fry tend to die, I assume premature hatching) and dragging out to about 14 days. Most eggs hatch around day 10-12 in my tank.

Cheers, Eric
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bekateen
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Re: Repeat spawning of Dekeyseria picta L052

Post by bekateen »

Haven't updated for a while, so here is the latest summary. I rarely see more than two or three adults at a time, but there should be 11 adults alive in this tank. Based on the spawning schedule, I believe there are only two males and two females participating in the spawns. One male, I believe to be the same male, uses a single cave for all but two of the spawns. On two occasions there have been spawns in the tank which are not occurring in caves. I suspect they occur among the cobblestones. Those two spawns I think are the second pair of L052 (shown in blue color in list below).

Also, the typical interspawn interval is about 10-14 days (roughly the time it takes for the eggs to hatch, which hatch from 11-14 days post-spawning). But after 3 spawns 10-14 days apart, there is a pause of about 20 days. I wonder if the females need a chance to recondition after three spawns. The timing could be a coincidence - As we say in mathematics, "Two points make a line" ... but conversely, two points don't confirm a straight connection. Time may tell if the parents keep going and do this pause again.
  • Spawn #1: 09 Jan
  • Spawn #2: 22 Jan (13 days after spawn #1)
  • Spawn #4: 03 Feb (12 days after spawn #2)
  • Spawn #3: 23 Jan - fresh egg mass found loose in tank (spawn date unknown, but must be 13-14 days after spawn #1)
    • Pause
  • Spawn #5: 23 Feb (20 days after spawn #4)
  • Spawn #6: 08 March (14 days after spawn #5)
  • Spawn #8: 19 March (11 days after spawn #6)
  • Spawn #7: 04-06 March? New hatchlings found free in tank 18 March (spawn date unknown, estimated 12-14 days earlier = 10-12 days after spawn #5)
    • Pause
  • Spawn #9: 09 April (21 days after spawn #8)
  • Spawn #10: 20 April (11 days after spawn #9)
  • Spawn #11: 30 April (10 days after spawn #10)
If the need for a pause after three spawns is really a thing, then I'm due for a 3-week hiatus by the cave spawning pair (next cave spawn would be predicted between 20-23 May). Also if there is a second pair spawning under rocks, I'm due for a free-ranging clutch of hatchling fry to appear magically any day now. X_X :YMPRAY: :-SS

Cheers, Eric
"So many catfishes, so little time... and space... and money." - I said this after visiting Pier Aquatics.
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Re: Repeat spawning of Dekeyseria picta L052

Post by Baardman »

Great news How are all the baby "rabbits" doing?

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bekateen
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Re: Repeat spawning of Dekeyseria picta L052

Post by bekateen »

Thanks! The babies are doing well. Ill get more pics soon.

Cheers, Eric
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Re: Repeat spawning of Dekeyseria picta L052

Post by fishguy1978 »

I'm curious why do you pull the eggs away from the male?
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bekateen
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Re: Repeat spawning of Dekeyseria picta L052

Post by bekateen »

fishguy1978 wrote:
Thu May 07, 2020 9:53 pm
I'm curious why do you pull the eggs away from the male?
Because the tank itself is not "wiggler friendly." As far as I can tell, I get fewer surviving fry from the couple of batches that hatched in tank than I get from batches I recover, even though I might lose 5+ eggs during the recovery process. Once the fry hatch, I'm having pretty good survival.

Eric
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Re: Repeat spawning of Dekeyseria picta L052

Post by bekateen »

I removed the eggs from the 30-April spawn today. The eggs fell away from the cave with almost no manipulation. I think I took them at the right time. Looking good!
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bekateen
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Re: Repeat spawning of Dekeyseria picta L052

Post by bekateen »

Oldest fry now 3.5 months post hatching with some fry over 30mm SL.
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Re: Repeat spawning of Dekeyseria picta L052

Post by bekateen »

Spawn #12, discovered this morning. Pair was trapping when I left work yesterday at 6pm. Eggs laid between then and 10am today. (11 days after spawn #11)

Out goes my hypothesis that they need a 3 week pause after every third spawn. :)) :YMAPPLAUSE: (although this could be a different female)

Cheers, Eric
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"So many catfishes, so little time... and space... and money." - I said this after visiting Pier Aquatics.
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