Rio Nanay Tetras ?

Tetras, Hatchetfish, Pencilfish, Other Characin Fish (Silver Dollar, Headstander, Leporinus)
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Stephen
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martin rick wrote: Thu Jul 15, 2021 21:16 pm
Stephen wrote: Thu Jul 15, 2021 19:40 pm
martin rick wrote: Thu Jul 15, 2021 18:49 pm Apparently the Nanay river contains several species not native to it. During the rainy season, lakes are formed that are fed from one river and continuing rain may let it drain into the Nanay. Discus were mentioned as one of the non-indigenous species. That is according to a Spanish speaking local on you tube. https://www.youtube.com/watch?v=a4LcFleFmFsu
Scrolling down about half way on http://www.scielo.org.pe/scielo.php?scr ... 0000100004 there's a list of all the species that were found in a recent university survey including about 30 Charicidae.
Apparently a plane crashed in to the Rio Nanay years ago that was carrying a shipment of live discus and therefore discus were accidentally introduced and thrived.

The document looks interesting, I'll read it later. Thanks for that, appreciated.
I think the English translation for the abstract is misleading. The "vaciente" (emptying) season should correspond to the dry season and the "cresciente" (growing) would be better translated as the wet season.
PS the paper was originally published in 2010 so it's not that up to date.
The document confirms some fish species that I previously had a question mark against such as the January Tetra (Hemigrammus hyanuary) and other (non-tetra) species.

Thank you. ::thumbu::
425L SeaBray Elite aquarium - Rio Mamoré (Bolivia) theme
4 x Cupid Cichlids, 14 x Cory caudimaculatus, 13 x Cory sterbai 52 x Reed Tetra, 4 x Honeycomb Bristlenose (L519)

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plankton
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I presume you've seen this list of fish...
https://www.seriouslyfish.com/river/nanay/
and this..
https://www.scotcat.com/articles/article44.htm
Unfortunately I believe the blackskirt comes from Bolivia - Rio Paraguay and Rio Guapore - on the West side of Amazonia....
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Stephen
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plankton wrote: Fri Jul 16, 2021 9:27 am I presume you've seen this list of fish...
https://www.seriouslyfish.com/river/nanay/
and this..
https://www.scotcat.com/articles/article44.htm
Unfortunately I believe the blackskirt comes from Bolivia - Rio Paraguay and Rio Guapore - on the West side of Amazonia....
I have seen both those lists but thanks for looking.

The Black Widow (Black Skirt) tetra was only a tease, they do also exist in the Rio Madeira as well as the Rio Mamore, Rio Guapore and Rio Paraguay.
425L SeaBray Elite aquarium - Rio Mamoré (Bolivia) theme
4 x Cupid Cichlids, 14 x Cory caudimaculatus, 13 x Cory sterbai 52 x Reed Tetra, 4 x Honeycomb Bristlenose (L519)

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