Collecting the Chorro de Chorrera River

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duanes

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Isla Taboga Panama via Milwaukee
Yesterday, Danial Atencio, his son Jacob, and I decided to return to the Chorro de Chorrera, a part of the Rio Caimito and Chagres drainage system, slightly west of the Panama Canal to collect.
The river cascades from the highlands in a series of picturesque waterfalls, and eventually flows into the Pacific.
Back in June of 2023 (the last time, we visited), we purposely came back empty handed, the fish we did catch (in my view) were too large to keep, they were very large chupa piedras `(Ancistrus chagresi).
With almost every cast, at least one large pleco was pulled up.
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Didn¨t take long to figure out thia day wasn´t going to work for collecting here.
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Moving on, we found the Rio Cacoa de Capira, a small stream a few miles down the road,and spent about 2 hours netting there.
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We landed 2 juvie Andonoacara cichlids, a Roeboides tetra, and a one fresh water shrimp.
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Some days you eat the bar, some days, it eats you.
 
Although not as common as Astyanax I have found them spread throughout central and eastern Panama so far, and according to the handbook I use, Freshwater of Fishes of Cost Rica, are found found as far norrth as Mexico.
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Similar to the way Andinoacara cichlids have transcended geographic boundaries, both east and west and into Costa Rica.

It´s interesting (to me at least) that ¨some cichlids¨ seem restricted by severly by geographic boundaries,
while the tetras, and Andinoacara are not.
An example would be Darienheros, which I have not found west of the Mamoni river, to the edge of the Darien.
Yet Andinoacara cichlids, the Roedoides tetras abound everywhere.
 
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