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COMUNIDAD DE INSECTOS ACUÁTICOS ASOCIADOS A CONDICIONES DE CONTAMINACIÓN EN EL RÍO CURUNDÚ, PANAMÁ

COMUNIDAD DE INSECTOS ACUÁTICOS ASOCIADOS A CONDICIONES DE CONTAMINACIÓN EN EL RÍO CURUNDÚ, PANAMÁ,ENRIQUE MEDIANERO,Y MIRNA SAMANIEGO

COMUNIDAD DE INSECTOS ACUÁTICOS ASOCIADOS A CONDICIONES DE CONTAMINACIÓN EN EL RÍO CURUNDÚ, PANAMÁ   (Citations: 1)
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From March 2000 to March 2001, samples of aquatic insects and of physiochemical variables were obtained from the riverbed of Rio Curundú, in the Republic of Panama. The objectives of the study were (1) to identify aquatic insects resident in waters of different levels of contamination; (2) to assess the diversity of insect communities from the source to the estuary of the river; and (3) to evaluate the effects of rainfall on annual patterns of insect abundance. Fifty-seven taxa were collected. Most of insects were associated with levels of biochemical need of oxygen (BNO) between 7.4 and 13.05 mg/l. However, some insect genera were associated with BNO levels of 62.5 and 188.5 mg/l. There was a relation between BNO and insect genera (chi-squared = 1674, p < 0.007). The diversity of insect communities decreased from the source to the estuary of the river. There was also a negative linear relation between rainfall and insect abundance (F = 10.49, p< 0.0078, r = -0.70).
Published in 2004.
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