Artigo de peri??dico
Seasonal arsenic in catfish (Siluriformes, Ariidae) and the hydrochemical conditions of two areas in a Ramsar site on the Brazilian coast
Registro en:
0001-3765
2
95
10.1590/0001-3765202320210033
0000-0002-0083-2523
28.1
69
Autor
AZEVEDO, JULIANA S.
BRAGA, ELISABETE S.
KUNIYOSHI, LEONARDO S.
FAVARO, DEBORAH I.T.
Resumen
The construction of a data bank concerning metal and metalloid content
of bioindicator fish from coastal areas is very important as it can help environmental
managers in decision making. In natural conditions, the concentration of elements
can be influenced by abiotic parameters such as water salinity. In this study, catfish
Cathorops spixii were evaluated concerning the total arsenic (As) concentration in the
muscle tissues of individuals subjected to different abiotic conditions in the Canan??ia-Iguape Estuarine-Lagoon Complex (CIELC), which was recently included on the Ramsar
list of wetlands of international importance. Seventy-four catfish were seasonally
caught in the northern and southern regions of the CIELC and their hydrochemical
parameters were obtained. C. spixii from the southern, best preserved, area showed
arsenic concentrations around ten times higher than the maximum limit established for
fish intended for human consumption. However, these high concentrations of arsenic
could be associated with the abiotic parameters of the water, such as salinity variations,
in this area. Conselho Nacional de Desenvolvimento Cient??fico e Tecnol??gico (CNPq) CNPq: 478890/2011-7; 573601/2008-9