Assessing environmental stress through lysosomal membrane stability in wild and farmed mussels (Mytilus galloprovincialis Lamarck, 1819) across seasons

Yancheva, Vesela and Stoyanova, Stela and Georgieva, Elenka and Antal, László and Uzochukwu, Ifeanyi Emmanuel and Nagy, László and Nyeste, Krisztián and Somogyi, Dóra (2025) Assessing environmental stress through lysosomal membrane stability in wild and farmed mussels (Mytilus galloprovincialis Lamarck, 1819) across seasons. ZOONOTES, 286. pp. 1-4. ISSN 1313-9916

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Abstract

This study assessed lysosomal membrane stability (LMS) in hemocytes of Mytilus galloprovincialis from wild and farmed populations, using the Neutral Red Retention Time (NRRT) assay as a biomarker of environmental stress. Mussels were sampled in summer and autumn to evaluate seasonal variability, and the results were compared with our previous winter and spring data. NRRT values showed a significant reduction in both populations across seasons, indicating compromised lysosomal integrity and exposure to environmental stressors. Notably, wild mussels consistently exhibited lower NRRT values compared to farmed individuals, suggesting a higher stress burden. The underlying causes of this difference remain to be clarified.

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