Submitted by Ricardo Cedraz Duque Moliterno (ricardo.moliterno@uefs.br) on 2018-01-26T22:10:26Z No. of bitstreams: 1 Disserta??o-THAISE SANTOS.pdf: 2903693 bytes, checksum: 54d1a25fadc9438d22f06ad23ff48360 (MD5) / Made available in DSpace on 2018-01-26T22:10:26Z (GMT). No. of bitstreams: 1 Disserta??o-THAISE SANTOS.pdf: 2903693 bytes, checksum: 54d1a25fadc9438d22f06ad23ff48360 (MD5) Previous issue date: 2017-04-27 / Funda??o de Amparo ? Pesquisa do Estado da Bahia - FAPEB / Estuaries and coastal regions are widely used environments for the disposal of urban and industrial effluents, causing contamination of waters and marine life by several pollutants, among them trace elements, considered as one of the most important contaminants, and may be associated with Organic and inorganic solids in the aquatic environment. In the Bay of All Saints (BTS) region, despite the pockets of contamination in the rivers and estuaries that feed it, fishing activities are intense and rely on a variety of fish, including fish, crustaceans and mollusks that are intended for subsistence Of riverside communities or to commerce in surrounding cities, such as the municipality of Feira de Santana-BA. As a result, this study aimed to identify the commercialization dynamics of fish in the free fairs of Feira de Santana-BA and to evaluate the concentration of trace elements in shrimps (Litopenaeus vannamei) from the BTS. For this, a research was initially conducted at the free fairs of Feira de Santana to identify the most traded species at fairs and their origin. The results identified that the most popular species at the fairs are: tilapia (Oreochromis niloticus), corvinas (Micropogonias furnieri) and shrimps (Litopenaeus vannamei) respectively, but only crustaceans and molluscs originate from BTS fishing communities. The analysis of trace element concentrations performed later with Litopenaeus vannamei showed high levels of Fe and Mn in the tissues, but only Cr and Pb levels exceeded the limits of ANVISA for inorganic contaminants in foods. Significant differences were found between the exoskeleton and muscle tissues and between stages of young and adult maturity. / Os estu?rios e as regi?es costeiras s?o ambientes muito utilizados para a disposi??o de efluentes urbanos e industriais, acarretando a contamina??o das ?guas e da vida marinha por diversos poluentes, dentre eles os elementos tra?os, considerados como uns dos contaminantes mais importantes, podendo estar associados a s?lidos org?nicos e inorg?nicos no meio aqu?tico. Na regi?o da Ba?a de Todos os Santos (BTS), apesar dos focos de contamina??o nos rios e estu?rios que a alimentam, as atividades pesqueiras s?o intensas e conta com uma variedade de pescado, incluindo peixes, crust?ceos e moluscos que destinam-se a subsist?ncia das comunidades ribeirinhas ou ao com?rcio em cidades circunvizinhas, como o munic?pio de Feira de Santana-BA. Em decorr?ncia disso, este estudo objetivou caracterizar a din?mica de comercializa??o do pescado nas feiras livres de Feira de Santana- BA e avaliar da concentra??o de elementos tra?os em camar?es (Litopenaeus vannamei), oriundos da BTS. Para tal, inicialmente foi realizada uma pesquisa nas feiras livres de Feira de Santana para identificar as esp?cies mais comercializadas nas feiras e sua origem. Os resultados identificaram que as esp?cies mais populares nas feiras s?o as til?pias (Oreochromis niloticus), corvinas (Micropogonias furnieri) e camar?es (Litopenaeus vannamei) respectivamente, mas apenas os crust?ceos e moluscos s?o originados de comunidades pesqueiras da BTS. As an?lises das concentra??es de elementos tra?os realizadas com Litopenaeus vannamei, constataram n?veis elevados de Fe e Mn nos tecidos, mas apenas os n?veis de Cr e Pb ultrapassaram os limites da legisla??o para contaminantes inorg?nicos em alimentos. Diferen?as siginificativas foram cosntatadas entre os tecidos exoesqueleto e m?sculo e entre os est?gios de maturidade jovem e adulto.