Location and water conditions of South American Rivers

[valice]

Map of different rivers in the South American continent.
Picture courtesy www.enchantedlearning.com




Water conditions of the different rivers
Information courtesy of http://opefe.com/waterchem.html
+-------------------------------+-------- +---------------+-----------------+
| Collecting Site-water type... | pH..... | Hardness(ppm) | temperature.... |
+-------------------------------+---------+---------------+-----------------+
| Rio Amazonas-white water..... | 6.9.... | 80 ppm....... | 29°C/84°F...... |
| Rio Apayacu-white water...... | 6.4.... | 20 ppm....... | 30°C/86°F...... |
| Rio Orosa-white water........ | 6.5-6.7 | 60-110 ppm... | 30°C/86°F...... |
| Rio Maniti-white water....... | ....... | ............. | 29°C/84°F...... |
| Quebrada Yanayacu-black water | 6.4.... | 20 ppm....... | 27°C/80°F...... |
| Rio Ampiyacu-white water..... | 6.4.... | 20 ppm....... | 29°C/84°F...... |
| Rio Napo..................... | 6.7-7.3 | 80-120 ppm... | 27°C/81°F...... |
| Rio Nanay.................... | 6.6-7.0 | 20 ppm....... | 25°C/78°F...... |
| Rio Itaya-white water........ | 6.0-7.0 | ............. | 23-27°C/73-81°F |
| Quebrada Tuche Caño.......... | 6.5.... | 60 ppm....... | ............... |
| Quebrada Yanashi............. | 6.5.... | 70 ppm....... | ............... |
| Rio Aguasyacu-white water.... | ....... | ............. | 28°C/82°F...... |
| Cocha at Oro Blanco.......... | 6.5.... | 120 ppm...... | ............... |
| Avaha Cocha at Oro Blanco.... | 6.5.... | 120 ppm...... | ............... |
| Paiva Chica Cocha............ | 5.8.... | 50 ppm....... | ............... |
| Lata Cocha................... | 5.5.... | 20 ppm....... | ............... |
| Urcu Cocha................... | 5.5.... | 1-2 ppm...... | ............... |
| Paiva Cocha.................. | ....... | 3 ppm........ | ............... |
+-------------------------------+---------+---------------+-----------------+
| Rio Xingu.................... | 6.7-6.9 | ............. | 26°C/80°F...... |
| Rio Araguia.................. | 5.8-7.5 | 4-20 ppm..... | 22-28°C/72-82°F |
| Rio Negro and Orinoco rivers. | 4.5-7.0 | 2-8 ppm...... | 24-28°C/75-82°F |
+-------------------------------+---------+---------------+-----------------+

Rio Paraguay, Rio Paraña (Paraguay and Argentina).
WATER: pH 6.5-7.5 (7.0), 4-14 dH (. Although in nature, the Paraguay Paraña can sometimes tolerate water temperatures as low as 59°F (15°C), it should be kept in water with a temperature from 70-77°F (21-25°C).

[Gregg]

That was informative~! My bloodfin tetras and black skirt tetra live in an unheated tank, I always knew the latitude could=subtropical, but this exact information I never had. Those fish live in the southern part of the watershed of the Rio Parana as does the Buenos aires tetra, even farther down river. Thanks for the map and info.

Gregg