Photos for C. leucomelas Cat-E-Log submission

Post by **Shane** » 05 Jul 2003, 19:08

Two days after capture

Collecting location. A small channel off the main Amazon River that connects to the Rio Yavari, Peru.

Yann · Post by **Yann** » 06 Jul 2003, 11:34

Hi Shane!

Hey great pictures!
DId you caught them in the Rio shown on the bottom picture?
Really interesting, I always thought that they were more likely to be encountered in rather very small river...
Do you have any information regarding the water parameters and the depth, width and current speed of this river...?
Cheers
Yann

Post by **Shane** » 06 Jul 2003, 14:00

Yann,
I stopped at the hut above and got permission to collect there from the residents who were inside eating a lunch of plecos and doradids.
It was a blackwater unnamed caÃ±o directly across the Amazon river from Leticia, Colombia in Peru. Current was weak, but you could see the surface moving along. Most were caught at a water depth of about 24 inches. Upriver, on the main Rio Yavari, which is closer to clearwater (color of strong tea), we caught lots of other Corydoras and Brochis but no C. leucomelas. These were only captured in the two blackwater caÃ±os we sampled. Actually, there were so many in front of the hut above that Jimmy (a collector) returned the next day aand caught about a thousand. The caÃ±o varied between 50 feet at the widest and twenty. I did not take water samples but the water was very soft and probably had a pH in the low 6s. Temp (it was the wet season) was in the high 70s to low 80s.
-Shane

YouTube · Post by **Jools** » 08 Jul 2003, 09:06

yannfulliquet wrote:Hi Shane!

Hey great pictures!
DId you caught them in the Rio shown on the bottom picture?
Really interesting, I always thought that they were more likely to be encountered in rather very small river...
Do you have any information regarding the water parameters and the depth, width and current speed of this river...?
Cheers
Yann

Yann,

This is almost identical to the place I collected C. ambiacus (and Brochis splendens) in Peru. The fish were collected swimming between .5 - 2 metres from shore in water 30cm to 80cm deep.

Jools

YouTube · Post by **Jools** » 15 Jul 2003, 00:00

Shane,

Is the local name "Maldito", Peruvian or Colombian?

Jools

YouTube · Post by **Jools** » 15 Jul 2003, 00:13

I've added this to the cat-elog now. Nice to see some Cory data coming in.

Jools

Post by **Shane** » 15 Jul 2003, 03:31

Jools,
In the Leticia area you can not really define Colombian versus Peruvian versus Brazilian. The river is the only thing that separates anyone and they all cross it and move as they please. The language is also very distinct (and hard to understand) as it is a mixture of Spanish, Portugese, and a fair number of Indian words for nouns (e.g. trees, birds, fruits, fishes, etc).
-Shane