seasonality

[sorriva99]

what exatly happened in the amazon basin during the year?
I mean in what month is summer and what happened during this season, and in the other seasons? When does the apistos spowning?
And what happened in the water? When does the pH go down? During what period?
Sorry for all the questions, but i really want uderstand that
thx all

 

[themountain]

It depends on what region you are interested in The Amazon basin is huuuge

 

[Mike Wise]

Well, that's hard to explain. Being in the tropics there's not summer or winter. Temperatures do vary seasonally depending on whether it is the rainy (cooler) or dry (warmer) season. It also depends on what part of the Amazon Basin you're looking at because not all parts of the Amazon have the same rainy/dry seasons. Water values will fluctuate all through the year, depending on external events and geographic location. Since the Amazon contain fairly soft water, minor changes can affect pH radically over a short period of time, depending on the effects of plants, bioload, etc.

 

[sorriva99]

Thanks all
I m looking at the "central" zone, the part of rio Parana, paraguay and Mato Grosso
In general during what months are the rainy and dry season?
And in what season the apisto spawning?

 

[themountain]

Here are four charts (Caceres and Cuiaba) about Max. Temperatur
http://www.weatheronline.co.uk/cgi-...RT=MAX&LANG=en&1422662427&ZUGRIFF=NORMAL&MD5=

http://www.weatheronline.co.uk/cgi-...RT=MAX&LANG=en&1422663066&ZUGRIFF=NORMAL&MD5=

and Precipitation during 52 months
http://www.weatheronline.co.uk/cgi-...RT=PRE&LANG=en&1422662541&ZUGRIFF=NORMAL&MD5=

http://www.weatheronline.co.uk/cgi-...RT=PRE&LANG=en&1422663111&ZUGRIFF=NORMAL&MD5=

...you do the math

From Wikipedia:
Mato Grosso do Sul has humid subtropical and tropical climates. The average annual rainfall is 1471.1 mm. January is the warmest month, with mean maximum of 34 °C (93.2 °F) and minimum of 24 °C (75.2 °F) and more rain; July experiences the coldest temperatures, with mean maximum of 25 °C (77 °F) and minimum of -2,0 °C (28 °F) and sun.

 

[sorriva99]

thanks lot!!
so apisto spawning around April?