SOMATIC INDICES IN RELATION TO POLLUTANTS IN EUROPEAN HAKE (MERLUCCIUS MERLUCCIUS) FROM THE ADRIATIC SEA: PRELIMINARY RESULTS

S. COLELLA; F. GIROLAMETTI; M. PANFILI; A. ANNIBALDI; S. ILLUMINATI; M. MARINI; A. SANTOJANNI; C. TRUZZI; E. FRAPICCINI.;

Contaminants such as polycyclic aromatic hydrocarbons (PAHs) and mercury (Hg) are known
for their endocrine-disprupting potential and can affect both growth and health status of fish. In the present
work, PAHs and Hg levels were investigated in the muscle tissue of males and females European hakes
(Merluccius merluccius) caught from Adriatic Sea. Somatic indexes, such as gonadosomatic and
hepatosomatic indices, as well as the condition factor, were investigated and compared with PAH and Hg
contents in fish tissue for possible correlations. Generally, contaminants bioaccumulated in several way
according to the sex of fish, females had higher concentrations than males in both pollutants. A positive
and significant correlation between PAHs and Hg with gonadosomatic index were found in all fish samples,
suggesting that during the gonad development, the capacity to accumulate contaminants by fish increases.

2023 - Contribution to conference proceedings

51° Congresso SIBM: Forme emergenti di inquinamento ambientale in mare, pp. 17–20, On line, 14/06/2022,17/06/2022

Keywords: Merluccius merluccius, Somatic indexes, Mercury, PAHs, Adriatic Sea

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The research activities of the Institute are carried out in the context of research, development and innovation projects, both national and international, based on regional funding programs (POR FEAMPA - Regional Operational Program of the European Maritime Affairs Fisheries Fund and Aquaculture and POR FESR - Regional Operational Program of the European Regional Development Fund) or ministerial (PRIN - Projects of relevant national interest, PNRA - National Research Program in Antarctica, PO FEAMPA - National Operational Program European Maritime Affairs Fisheries and Aquaculture Fund) , programs for European Territorial Cooperation (Interreg), direct funding programs of the European Commission (Horizon2020 and Horizon Europe, Life, JPI - Joint Programming Initiatives, ERA-NET Cofund) and thematic collaboration initiatives managed by international organizations such as, for example , the FAO - GFCM (General Fisheries Commission for the Mediterranean). The Institute also develops funded projects in the context of collaborations with private companies in the sectors of the blue economy as well as technology transfer and research results. Research projects, mainly of a collaborative nature, are developed through a wide network of partners that include major Italian and foreign research institutions and universities.

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