Analysis of the 90º and 150º angles for increment counting in otoliths of estuarine catfish

Abstract

The catfish belonging to the Ariidae family are widely distributed near the coast, in estuaries, inland and marine tropical and temperate waters (Marceniuk and Menezes, 2007). Ariids such as Cathorops spixii (Agassiz, 1829) and Genidens genidens (Cuvier, 1829) are distributed throughout the eastern coast of South America, where they are especially abundant in coastal lagoons