Transplantation de Donax trunculus dans le golfe d’Annaba d’un site de référence à un site pollué: multimarqueur approche, impact biochimique et corrélation avec la pollution métallique
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Date
2021-12-22
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Abstract
The gulf of Annaba (East Algeria) has observed
markedly increased levels of various pollutants. The
objective of the current study was to examine the im pact of these anthropogenic activities on the bio chemical composition of an edible mollusk Donax
trunculus. Thus, the levels of main biochemical con stituents (proteins, carbohydrates, lipids) were meas ured at various times during a transplantation from a
reference site (El Battah) to a contaminated site (Sidi
Salem) for 21 days. Biochemical analyzes indicate
changes at different times (0, 7, 14 and 21 days) dur ing the transplantation period. At day 0, the levels of
both carbohydrates, lipids and proteins from El Bat tah individuals were significantly higher compared
to those from Sidi Salem. During transplantation, we
notice comparable levels in transplanted individuals
(El Battah to Sidi Salem) to those of Sidi Salem start ing day 7 for proteins and day 14 for lipids and only
at day 21 for carbohydrates, respectively. A two-way
ANOVA (time, site) revealed significant effects of
time, site. Conclusively, the contaminated environ ment at Sidi Salem site mainly by heavy metals af fects the energy reserves of this mollusk species