ArticleActa parasitologica2025
Impact of Hysterothylacium Sp. (Nematoda: Raphidascarididae) on the Nutritive Reserves of the Triglid Fish, Chelidonichthys Lucerna (Actinopterygii: Triglidae) from North Tunisian Coast (Central Mediterranean).
Article in Acta parasitologica, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeParasitism influences the metabolic and physiological processes of host organisms and potentially affects their health and reproductive capabilities. This study examines the impact of the nematode parasite Hysterothylacium sp. on nutritive reserves of Chelidonichthys lucerna.
methodsTotal lipid, fatty acids, protein, and glycogen contents in the liver and ovary of parasitized were compared to unparasitized female C. lucerna during the pre-spawning period.
resultsThis study revealed that total lipid content in the liver in parasitized female pre-spawns is statistically lower than the unparasitized specimens. The same applies to fatty acid contents, which are generally lower in parasitized fish at the level of the two organs studied, liver and ovary. The comparison of protein content in parasitized and unparasitized fish showed a lower content in parasitized ovary and liver, but that was not statistically proven. Regarding glycogen, the parasite did not influence the carbohydrate content of the ovary but doubled that of the liver in parasitized specimens.
conclusionThe findings suggest that parasitism particularly affects lipids, fatty acids and glycogen reserves in the liver and gonads of C. lucerna, with potential consequences for the fish's reproductive capacity. Further research is needed to assess the long-term effects of parasitism on fish metabolism during other reproductive stages.
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