Populations of the Butterfly Goodeid ( Ameca splendens ) in the Upper Rio Ameca Basin, Mexico
2004; Taylor & Francis; Volume: 19; Issue: 4 Linguagem: Inglês
10.1080/02705060.2004.9664737
ISSN2156-6941
AutoresEugenia López‐López, Joel Paulo-Maya, Augusto Carvajal, Esperanza Ortíz-Ordóñez, Esther Uría-Galicia, Erika Mendoza Reynosa,
Tópico(s)Fish Ecology and Management Studies
ResumoABSTRACT The endangered endemic fish Ameca splendens was surveyed monthly from June 2001 to May 2002 at two sites in the upper Rio Ameca basin. Both populations demonstrated two annual reproduction peaks, with one in the spring season and the other in late fall. The condition and gonadosomatic index were higher in the population from the upstream pristine environment. Those fish in the pollution-stressed downstream region attained greater body length, longevity, and fecundity.
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