Abstract
Changes in the hematological and immunological parameters of fish due to anthropological pollutants, may lead to hematotoxic and immunotoxic effects. The objectives of current study were to determine the experimental effects of direct infusion of crude diesel oil on hematological and immunological features of juvenile great sturgeon Huso huso. During this toxicity test, juveniles of beluga were exposed to the acute doses (5, 10, 20, 40, 100, 500, and 1,000 ppm) of direct infusion crude diesel oil for 0, 48 h and 7 days. WBC, MCH, MCHC, and neutrophil in fish exposed to crude diesel oil for 48 h were significantly greater compared to the respective control groups and RBC, Hb, Ht, MCV, and lymphocyte were significantly lower than control groups (P ≤ 0.05). Eosinophils did not vary significantly in the groups exposed to 48 h crude diesel oil compared to the respective control groups (P > 0.05). Furthermore, 7-day exposures showed that WBC and Neutrophil were significantly greater compared to the respective control groups (P ≤ 0.05) and MCV was depleted within the crude diesel oil adjacency.
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