RE: NANFA-L-- Amazon Mollies

Hoover, Jan J ERDC-EL-MS (
Mon, 7 Feb 2005 20:15:57 -0600

Harry wrote:
>>>I remember seeing alot of mollies along the San Antonio Riverwalk when
and I were down there about 10 years ago. Also, There were a lot of mollies
and what struck me-in-the time as other exotics in the stream that runs thru
the San Antonio Zoo.<<<

My co-workers and I sampled the San Antonio River in 2003 (including the
reach near the Zoo).
Numerically, the two most abundant species were the red shiner and western
mosquitofish (both native). Next most abundant taxa were sailfin molly,
Mexican tetra, tilapias (3 spp.), and Rio Grande cichlid (all non-native).
In terms of biomass, sailfin catfishes, blue tilapia, and Rio Grande cichlid
(all non-native) were dominant. The San Antonio ichthyofauna must be one of
the more exotic in North America.

- Jan Hoover
Vicksburg, MS

/ This is the discussion list of the North American Native Fishes
/ Association (NANFA). Comments made on this list do not necessarily
/ reflect the beliefs or goals of NANFA. For more information about NANFA,
/ visit Please make sure all posts to nanfa-l are
/ consistent with the guidelines as per
/ To subscribe,
/ unsubscribe, or get help, visit the NANFA email list home page and
/ archive-in-