ОСОБЛИВОСТІ НАКОПИЧЕННЯ ХЛОРОРГАНІЧНИХ ЗАБРУДНЮВАЧІВ ОРГАНАМИ ЧОРНОМОРСЬКОЇ КАМБАЛИ КАЛКАНА PSETTA (SCOPHTHALMUS) MAXIMA MAEOTICA

• Дата: 2023
• Автор: Малахова, Л. В.
• Формат: Стаття
• Мова: Ukrainian
• Опубліковано: Marine Ecological Journal 2023
• Теми: чорноморська камбала калкан; акумуляція; поліхлоровані біфеніли; ДДТ; ДДЕ; ДДД
• Онлайн доступ: https://mej.od.ua/index.php/mej/article/view/117
• Назва журналу: Marine Ecological Journal

The organochlorine compounds (OCs) content in the tissues of males and females of the Black Sea turbot have been investigated during the spawning season 2008-2009. The level of total lipids, seven congeners of polychlorinated biphenyl and organochlorine pesticide dichlorodiphenyl- trichloroethane (p,p’- DDT) including its metabolites (p,p’-DDE and p,p’- DDD) were measured in liver, red and white muscles and gonads tissues samples. OC was measured by employing the methods GC-ECD (Gas Chromatography with Electron Capture Detector). ΣPCB7 and ΣDDT concentration in the Black Sea turbot were comparable with the OCs concentration found in fish – of source their food. It is observed that with increasing fat content of the tissues most of OC’ concentrations increased. In the tissue samples, ΣDDT ranged from 2.5 to 223.9 ng·g-1 w.w. and ΣPCB7 had an overall range 2.0 – 139.3 ng·g-1 w.w and was highest in the liver, where hexa-PCB 138 and 153 were the dominant components. In fish the main DDT compound detected was the metabolite p,p′-DDE (the sum of p,p′-DDE and p,p′-DDD was 83% of DDT) indicative of old DDT residues. On average, OC concentration in a wet weight basis in male livers was twice higher than females. OC concentrations did not show any significant changes over the 2-yr sampling period 2008 – 2009.