Research Article

Histopathological Characterization of Hyperemia, Steatosis, Inflammatory Infiltration, and Necrosis in the Liver of Nemipterus randalli from the Gulf of Antalya (Türkiye)

Volume: 2 Number: 1 June 25, 2026

Histopathological Characterization of Hyperemia, Steatosis, Inflammatory Infiltration, and Necrosis in the Liver of Nemipterus randalli from the Gulf of Antalya (Türkiye)

Abstract

The fish liver is a multifunctional metabolic organ that serves as a sensitive biomarker for evaluating the effects of environmental stressors on aquatic organisms. This study aimed to investigate the macroscopic and histopathological characteristics of the liver in the Lessepsian migrant Nemipterus randalli from the Antalya Gulf (Northeastern Mediterranean, Türkiye). A total of 24 specimens were collected on March 10, 2026, and subjected to morphometric analysis and histopathological examination. The mean total body length and weight were 17.8 cm (range: 14.9–21.5 cm) and 77.9 g (range: 40.2–126.0 g), respectively, with a female-to-male ratio of 1:0.8. The mean liver length, weight, and width were 19.6 mm, 0.5 g, and 10.4 mm, respectively. Histopathological evaluation of the hepatopancreas from 18 successfully fixed specimens revealed varying degrees of hyperemia, ranging from mild vascular hyperemia to pronounced circulatory disturbances. Lipid accumulation was observed at different severities, characterized by both microvesicular and macrovesicular steatosis within hepatocytes. Inflammatory cell infiltration, predominantly consisting of mononuclear cells, was evident, suggesting an ongoing inflammatory response. Additionally, focal to multifocal areas of necrosis were identified in several sections, accompanied by disruption of normal tissue architecture. Overall, these findings demonstrate a spectrum of degenerative and inflammatory changes in the hepatic tissue of N. randalli, highlighting the susceptibility of this organ to metabolic and/or toxic insults. The present study provides baseline histopathological data for this Lessepsian species and underscores the utility of liver histopathology as a tool for monitoring environmental stress in the Mediterranean ecosystem.

Keywords

References

  1. Abusrer, S. A., & Shtewi, H. H. (2023). Morphological and histological structure of hepatopancreas in rock goby Gobius paganellus on the western coast of Libya. Open Veterinary Journal, 13(10), 1251–1258. https://doi.org/10.5455/OVJ.2023.v13.i10.3.
  2. Agius, C., & Roberts, R. J. (2003). Melano-macrophage centers and their role in fish pathology. Journal of fish diseases, 26(9), 499–509. https://doi.org/10.1046/j.1365-2761.2003.00485.x.
  3. Anderson, B. G. & Mitchum, D.L. (1974). Atlas of Trout Histology. Wyoming Game Fish Department Bulletin, USA. No, 13.
  4. Ben Ameur, W., El Megdiche, Y., Ennaceur S., Mhadhbi, T., Ben Hassine, S., Annabi, A., de Lapuente, J., Driss, M. R., Borràs, M., & Eljarrat E. (2022). Biomarkers responses and polybrominated diphenyl ethers and their methoxylated analogs measured in Sparus aurata from the Lagoon of Bizerte, Tunisia. Environmental Science and Pollution Research, 29(25), 38618–38632. https://doi.org/10.1007/s11356-022-18769-z.
  5. Borucinska, J. D., Morka, D., Grabowski, Z., & Smith, H. (2017). A follow-up study of selected biomarkers of health in cod Gadus morhua L. collected from the southern Baltic off the Polish coast. Journal of fish diseases, 40, 1883–1894. https://doi.org/10.1111/jfd.12663.
  6. Brusle, J. & Anadon, G.G. (1996). The structure and function of fish liver. In: Munshi, J.S.D. and Dutta, H.M. (Eds.). Fish Morphology. North-Holland: Science Publishers.
  7. Caballero, M. J., Izquierdo, M. S., Kjørsvik, E., Fernández, A. J., & Rosenlund, G. (2004). Histological alterations in the liver of sea bream, Sparus aurata L., caused by short-term feeding with vegetable oils. Recovery of normal morphology after feeding fish oil as the sole lipid source. Journal of Fish Diseases, 27(9), 531–541. https://doi.org/10.1111/j.1365-2761.2004.00572.x.
  8. El-Halfawy, M. M., & Ramadan, A. M. (2014). Accessory kidney of threadfin bream Nemipterus japonicus and their relation to gonad maturation. International Journal of Aquaculture, 4(13), 79–84. https://doi.org/ 10.5376/ija.2014.04.0013.

Details

Primary Language

English

Subjects

Animal Developmental and Reproductive Biology

Journal Section

Research Article

Publication Date

June 25, 2026

Submission Date

May 7, 2026

Acceptance Date

June 16, 2026

Published in Issue

Year 2026 Volume: 2 Number: 1

APA
Özmen, Ö., Aydoğan, G., Demirörs, G., Ayözger, L. E. Ö., & İnnal, D. (2026). Histopathological Characterization of Hyperemia, Steatosis, Inflammatory Infiltration, and Necrosis in the Liver of Nemipterus randalli from the Gulf of Antalya (Türkiye). Smyrna Journal of Natural and Data Sciences, 2(1), 27-39. https://izlik.org/JA97SY79KF
AMA
1.Özmen Ö, Aydoğan G, Demirörs G, Ayözger LEÖ, İnnal D. Histopathological Characterization of Hyperemia, Steatosis, Inflammatory Infiltration, and Necrosis in the Liver of Nemipterus randalli from the Gulf of Antalya (Türkiye). Smyrna Journal of Natural and Data Sciences. 2026;2(1):27-39. https://izlik.org/JA97SY79KF
Chicago
Özmen, Özlem, Gözde Aydoğan, Gülay Demirörs, Leyla Elif Özgü Ayözger, and Deniz İnnal. 2026. “Histopathological Characterization of Hyperemia, Steatosis, Inflammatory Infiltration, and Necrosis in the Liver of Nemipterus Randalli from the Gulf of Antalya (Türkiye)”. Smyrna Journal of Natural and Data Sciences 2 (1): 27-39. https://izlik.org/JA97SY79KF.
EndNote
Özmen Ö, Aydoğan G, Demirörs G, Ayözger LEÖ, İnnal D (June 1, 2026) Histopathological Characterization of Hyperemia, Steatosis, Inflammatory Infiltration, and Necrosis in the Liver of Nemipterus randalli from the Gulf of Antalya (Türkiye). Smyrna Journal of Natural and Data Sciences 2 1 27–39.
IEEE
[1]Ö. Özmen, G. Aydoğan, G. Demirörs, L. E. Ö. Ayözger, and D. İnnal, “Histopathological Characterization of Hyperemia, Steatosis, Inflammatory Infiltration, and Necrosis in the Liver of Nemipterus randalli from the Gulf of Antalya (Türkiye)”, Smyrna Journal of Natural and Data Sciences, vol. 2, no. 1, pp. 27–39, June 2026, [Online]. Available: https://izlik.org/JA97SY79KF
ISNAD
Özmen, Özlem - Aydoğan, Gözde - Demirörs, Gülay - Ayözger, Leyla Elif Özgü - İnnal, Deniz. “Histopathological Characterization of Hyperemia, Steatosis, Inflammatory Infiltration, and Necrosis in the Liver of Nemipterus Randalli from the Gulf of Antalya (Türkiye)”. Smyrna Journal of Natural and Data Sciences 2/1 (June 1, 2026): 27-39. https://izlik.org/JA97SY79KF.
JAMA
1.Özmen Ö, Aydoğan G, Demirörs G, Ayözger LEÖ, İnnal D. Histopathological Characterization of Hyperemia, Steatosis, Inflammatory Infiltration, and Necrosis in the Liver of Nemipterus randalli from the Gulf of Antalya (Türkiye). Smyrna Journal of Natural and Data Sciences. 2026;2:27–39.
MLA
Özmen, Özlem, et al. “Histopathological Characterization of Hyperemia, Steatosis, Inflammatory Infiltration, and Necrosis in the Liver of Nemipterus Randalli from the Gulf of Antalya (Türkiye)”. Smyrna Journal of Natural and Data Sciences, vol. 2, no. 1, June 2026, pp. 27-39, https://izlik.org/JA97SY79KF.
Vancouver
1.Özlem Özmen, Gözde Aydoğan, Gülay Demirörs, Leyla Elif Özgü Ayözger, Deniz İnnal. Histopathological Characterization of Hyperemia, Steatosis, Inflammatory Infiltration, and Necrosis in the Liver of Nemipterus randalli from the Gulf of Antalya (Türkiye). Smyrna Journal of Natural and Data Sciences [Internet]. 2026 Jun. 1;2(1):27-39. Available from: https://izlik.org/JA97SY79KF