Rio Aripuanã

racoll · Post by **racoll** » 25 Nov 2014, 17:37

Quick trip to the Rio Aripuanã, Rio Madeira drainage, Amazonas, Brazil. Just loricariids this time I'm afraid.

A floating bar: the habitat of the Panaqolus and Ancistrus.

racoll · Post by **racoll** » 25 Nov 2014, 17:43

racoll · Post by **racoll** » 25 Nov 2014, 17:49

(juv.)

(juv.)

racoll · Post by **racoll** » 25 Nov 2014, 17:52

racoll · Post by **racoll** » 25 Nov 2014, 18:05

with yellow caudal (rocks).

Habitat of the Ancistrus and Hypancistrus.

Plain (wood).

racoll · Post by **racoll** » 25 Nov 2014, 18:19

racoll · Post by **racoll** » 25 Nov 2014, 18:48

Hemiancistrus (juv.)

Habitat of Hemiancistrus and Hypostomus.

racoll · Post by **racoll** » 25 Nov 2014, 18:53

racoll · Post by **racoll** » 25 Nov 2014, 19:01

Habitat of Spatuloricaria, Rineloricaria, Parotocinclus.

Dekeyseria

racoll · Post by **racoll** » 25 Nov 2014, 19:10

Couple I forgot.

Habitat of Panaque, Peckoltia, Hypancistrus, Lasiancistrus, Squaliforma.

Peckoltia from small tributary river.

Habitat of Hemiancistrus.

Narwhal72 · Post by **Narwhal72** » 25 Nov 2014, 20:37

Thanks for posting the great pics!

Is the Rio Aripuana relatively new to fish collecting? I got some Geophagus sp. Aripuana from there a couple of months ago (tank raised from Wetspot) and I had never heard of that location before. The pictures of the adults were breathtaking so I had to have some!

Andy

racoll · Post by **racoll** » 25 Nov 2014, 21:18

Is the Rio Aripuana relatively new to fish collecting?

The DATZ L numbers from there were published in 1991, so we have known about these fishes for a while, but as far as I know, there are no significant collections of ornamental species made these days.

Acanthicus · Post by **Acanthicus** » 26 Nov 2014, 06:51

Great pics, especially great to see new pictures of L 297, which has only been photographed/published once before.

racoll · Post by **racoll** » 26 Nov 2014, 14:20

especially great to see new pictures of L 297, which has only been photographed/published once before.

Yes! It really was that orange in the morning sun. No photoshop tricks ...

WouterW · Post by **WouterW** » 27 Nov 2014, 10:00

Superb photos again, thanks for sharing with us! You didnt't fid any BARyancistrus underneath the floating establishment by any chance?

HaakonH · Post by **HaakonH** » 27 Nov 2014, 15:36

Fantastic as always! Can you tell what size the specimens of Hypancistrus in the pictures are? How many did you collect?

Haakon

racoll · Post by **racoll** » 27 Nov 2014, 15:36

You didnt't fid any BARyancistrus

Haha

matthewfaulkner · Post by **matthewfaulkner** » 29 Nov 2014, 23:33

Thanks for sharing the pictures and info, Rupert.

Did you find any other Panaque armbrusteri on your visit? I haven't read about them being in the Rio Madeira basin before.

racoll · Post by **racoll** » 30 Nov 2014, 00:17

Did you find any other Panaque armbrusteri on your visit?

Just the one I'm afraid. Did see a couple of others but they escaped.

I haven't read about them being in the Rio Madeira basin before.

Me neither. I'm hoping that it's a new distribution record for the species/genus.

matthewfaulkner · Post by **matthewfaulkner** » 29 Dec 2014, 22:56

Narwhal72 wrote: I got some Geophagus sp. Aripuana from there a couple of months ago ... and I had never heard of that location before.

They could be this newly described species - Geophagus mirabilis.

racoll wrote: I'm hoping that it's a new distribution record for the species/genus.

I think so, although I'm hardly qualified to make that judgement. We know that , or something very similar, has spread to the East of it's Tapajos drainage (Xingu, Araguaia/Tocantins), so maybe it's gone a bit more West as well. It's exciting for me to know there are more populations out there to discover, especially as I used to think more black and white about their distribution.

[Edit] Did you collect this guy above or below the 'Dardanelos' waterfall?

If you weren't already aware of it, the paper linked above talks a bit about the (lack of) species known from the Rio Aripuana.

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