Biologists develop fish guide

The upper basin of the Nangaritza River, in the province of Zamora, southeast of Ecuador, is the most biodiverse of the planet, in flora, that is, the one that has the most species per unit of territorial space and maybe it is the same in fauna. To study their fish three biologists, teachers-researchers from the University of Azuay (UDA), went in their search. His research: "Fish Guide of the Alto Nangaritza" was presented, yesterday, in the form of a book.

Edwin Zárate, Fredy Nugra and Diego Abad were the researchers. They found 34 fish species in the work site, with the cooperation of students from the UDA Biology School, which funded the work and the publication.

The book contains the names of the fish, scientific classification, location and photos of the fish. The most rare group located are the "astrobléfidos". There are others who call them "raspabalsa", "wancha", "kumpa", "mauts", "bull", "red tilapia", "rainbow trout" and more and many are edible.

Ecosystems are deteriorating due to pollution, erosion and, lately, "due to a serious problem in the Amazon basins: the construction of dams", because they impede the flow of water and its natural process as matter decomposition and nutrient flow.