A Review of Fish Anomalies in Türkiye’s Waters

Year 2024, Volume: 39 Issue: 4, 261 - 271, 10.10.2024

Özgen Yılmaz , Hasan Cerim , Sercan Yapıcı , İsmail Reis

https://doi.org/10.26650/ASE20241467944

Abstract

In recent years, anomaly studies have increased in number, covering both individual cases and their effects on natural populations and farmed species. However, in the literature review, no current study has been found to compile the types and cases of anomalies encountered in species found in Türkiye’s waters. In the context of this review, 34 articles and symposium proceedings were found to belong to fish anomalies in Türkiye’s waters. In these studies, 62 individuals from 38 species and 20 families from different water bodies were detected to have at least one anomaly type that is included in this review. According to the literature, possible factors causing anomalies can be discussed under four general headings; environmental (anthropogenic factors, industrial activities, industrial chemicals, trace elements, pollution, light intensity, pesticide usage), biological (endocrine system, genetic, teratological cases, epigenetic, nutritional problems, parasitic or physiologic reasons, oxidative stress, pigment deficiency), ecological (attacked by carnivores, competition, changes in water parameters), and fishery-related (ghost fishing). This review also presents some possible causes of particular anomaly types in detail. It is thought that with the information provided, this review may establish an up-to-date basis for future studies.

Keywords

Fish anomaly, environmental factors, genetics, nutrition

References

• Adams, S. M. & McLean, R. B. (1985). Estimation of largemouth bass, Micropterus salmoides Lacepede, growth using the liver somatic index and physiological variables. Journal of Fish Biology, 26, 111126. https://doi.org/10.1111/j.1095-8649.1985.tb04248 google scholar
• Afonso, J. M., Montero, D., Robaina, L., Astorga, N., Izquierdo, M. S. & Gines, R. (2000). Association of a lordosis-scoliosis-kyphosis deformity in gilthead seabream (Sparus aurata) with family structure. Fish Physiology and Biochemistry, 22, 159-163. https://doi.org/10.1023/A:1007811702624 google scholar
• Akyol, O. & Şen, H. (2012). First record of abnormal pigmentation in a wild common sole, Solea solea L., from the Aegean Sea. Turkish Journal of Veterinary and Animal Sciences, 36(6), 727-729. https:// doi.org/10.3906/vet-1110-7 google scholar
• Akyol, O., & Aydin, I. (2018). Abnormal Raja clavata (Rajidae) in the Aegean Sea: a ghost fishing effect. Turkish Journal of Fisheries and Aquatic Sciences, 18(2), 357-358. doi: 10.4194/1303-2712-v18_2_15 google scholar
• Başaran, F., Özbilgin, H., Özbilgin, Y. D., Paruğ, Ş. Ş. & Özden, O. (2009). The effect of lordosis severity on juvenile sea bass (Dicentrarchus labrax L., 1758) swimming performance. Turkish Journal of Zoology, 33(4), 413-419. https://doi.org/10.3906/zoo-0806-21 google scholar
• Bauman, A. G., Pratchett, M. S., Baird, A. H., Riegl, B., Heron, S. F. & Feary, D. A. (2013). Variation in the size structure of corals is related to environmental extremes in the Persian Gulf. Marine Environmental Research, 84, 43-50. http://dx.doi.org/10.1016/j.marenvres.2012.11.007 google scholar
• Bayhan, B., & Acarli, D. (2006). Hermaphrodite thinlip mullet Liza ramada (Risso, 1810) (Teleostei: Mugilidae) from Homa Lagoon (Izmir Bay-Aegean Sea). Aquaculture Research, 37(10), 1050-1052. google scholar
• Bayhan, B., Kaya, M., & Acarlı, D. (2010). A fin anomaly in thinlip mullet Liza ramada (Risso, 1810) caught from Homa Lagoon (Izmir Bay/ Aegean Sea). Pakistan Journal of Zoology, 42(6), 830-833. google scholar
• Belton, B., Bush, S. R. & Little, D. C. (2018). Not just for the wealthy: Rethinking farmed fish consumption in the Global South. Global Food Security, 16, 85-92. https://doi.org/10.1016/j.gfs.2017.10.005 google scholar
• Boglione, C., Gavaia, P., Koumoundouros, G., Gisbert, E., Moren, M., Fontagné, S. & Witten, P. E. (2013). Skeletal anomalies in reared European fish larvae and juveniles. Part 1: Normal and anomalous skeletogenic processes. Reviews in Aquaculture, 5, 99-120. https:// doi.org/10.1111/raq.12015 google scholar
• Cal, L., Suarez-Bregua, P., Cerda-Reverter, J.M., Braasch, I. & Rotllant, J. (2017). Fish pigmentation and the melanocortin system. Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, 211, 26-33. https://doi.org/10.1016/j.cbpa.2017.06.001 google scholar
• Campana, S. E. & Neilson, J. D. (1985). Microstructure of fish otoliths. Canadian Journal of Fisheries and Aquatic Sciences, 42(5), 1014-1032. https://doi.org/10.1139/f85-127 google scholar
• Campana, S. E. & Thorrold, S. R. (2001). Otoliths, increments, and elements: keys to a comprehensive understanding of fish populations?. Canadian Journal of Fisheries and Aquatic Sciences, 58(1), 30-38. https://doi.org/10.1139/f00-177 google scholar
• Capapé C., Aydin I., & Akyol O. (2018). Morphological deformities and atypical colour pattern in thornback ray, Raja clavata (Elasmobranchii: Rajiformes: Rajidae), from Izmir (Turkey, Aegean Sea, Eastern Mediterranean). Acta Ichthyologica et Piscatoria, 48(3), 261-266. google scholar
• Cerim, H., Çelik, M., & Yapıcı, S. (2016). Occurrence of colour abnormalities and morphological aberration in common sole Solea solea (L., 1758) captured from the Aegean Sea. Cahiers de Biologie Marine, 57, 85-87 google scholar
• Cerim, H., Yapıcı, S. & Yılmaz, Ö., (2022). Güllük Körfezi’nde (Güney Ege) Yakalanan Champsodon nudivittis (Ogiby, 1895) ve Mullus surmuletus (Linnaeus, 1758) Bireylerinde Otolit ve İskelet Anomalileri. Ulusal Sualtı Bilimsel Araştırma ve Değerleri Sempozyumu (USUBADES), 23. google scholar
• Cerim, H., Yapici, S., & Yilmaz, Ö. (2021). Lateral line and caudal fin anomalies in common sole (Solea solea Linnaeus, 1758) from southern Aegean Sea. Ege Journal of Fisheries and Aquatic Sciences, 39(2), 165-169. google scholar
• Cerim, H., Yilmaz, Ö., & Yapici, S. (2019). Some otolith deformations in common sole (Solea solea Linneaus, 1758) and four-eyed sole (Microchirus ocellatus Linneaus, 1758) from Southern Aegean Sea. II. International Agriculture and Forest Congress, 251-257. google scholar
• Cerim, H., Yılmaz, Ö., Baba, E., Bilge, G., & Ateş, C. (2018). Gonadal anomalies in European sea bass (Dicentrarchus labrax Linnaeus, 1758) and common sole (Solea solea Linnaeus, 1758) from Güllük Bay, Southern Aegean Sea. E. Genç (Ed.), 13th International Symposium on Fisheries and Aquatic Sciences Proceedings Book, 187-190. google scholar
• Çoban, D., Suzer, C., Yıldırım, Ş., Saka, Ş. & Fırat, M. K. (2016). Kültür koşullarında yetiştirilen Avrupa deniz levreklerinde (Dicentrarchus labrax) iskelet deformasyonları. Su Ürünleri Dergisi, 33(4), 373-379. https://doi.org/10.12714/egejfas.2016.33.4.11 google scholar
• Coffin, A. B., Raine, J. C. & Hawryshyn, C. W. (2012). Exposure to thyroid hormone in ovo affects otolith crystallization in rainbow trout Oncorhynchus mykiss. Environmental Biology of Fishes, 95, 347-354. https://doi.org/10.1007/s10641-012-0007-4 google scholar
• Çolak, S. Ö. & Çanak, Ö. (2020). Distribution of deformities among cultured Sparus aurata marketed in Istanbul, Turkey. Journal of Applied Ichthyology, 36(6), 947-951. https://doi.org/10.1111/jai.14138 google scholar
• Cuthill, I. C., Allen, W. L., Arbuckle, K., Caspers, B., Chaplin, G., Hauber, M. E., Hill, G. E., Jablonski, N. G., Jiggins, C. D., Kelber, A., Mappes, J., Marshall, J., Merrill, R., Osorio, D., Prum, R., Roberts, N. W., Roulin, A., Rowland, H., Sherratt, T. N., Skelhorn, J., Speed, M. P., Stevens, M., Stoddadr, M. C., Stuart-Fox, D., Talas, L., Tibbetts, E. & Caro, T. (2017). The biology of color. Science, 357(6350), eaan0221. https:// doi.org/10.1126/science.aan0221 google scholar
• Dağlı, M. (2008). The two abnormal cyprinid fish caughted in Kilis (Turkey) region. Journal of Fisheries Sciences, 2(5), 662-665. doi:10.3153/ jfscom.2008031 google scholar
• Dawson, C. E. (1964). A bibliography of anomalies of fishes. Gulf and Caribbean Research, 1(6), 308-399. google scholar
• Dawson, C. E. (1966). A bibliography of anomalies of fishes, supplement 1. Gulf and Caribbean Research, 2(2), 169-176. google scholar
• Dawson, C. E. (1971). A bibliography of anomalies of fishes, supplement 2. Gulf and Caribbean Research, 3(2), 215-239. google scholar
• Devries, D. R. & Frie, R. V. (1996). Determination of age and growth. In Murphy, B. R. & Willis, D. W. (Eds.), Fisheries techniques, 2nd edition. American Fisheries Society (pp. 483-512). Bethesda, Maryland. google scholar
• Fjelldal, P. G., Lock, E. J., Grotmol, S., Totland, G. K., Nordgarden, U., Flik, G. & Hansen, T. (2006). Impact of smolt production strategy on vertebral growth and mineralisation during smoltification and the early seawater phase in Atlantic salmon (Salmo salar, L.). Aquaculture, 261(2), 715-728. https://doi.org/10.1016/j.aquaculture.2006.08.008 google scholar
• Giora, J., Tolentino da Silva, A. C., Wociechoski Cavalheiro, L., Mariani Wingert, J. & Bernhardt Fialho, C. (2022). Long-term aquatic biomonitoring in a Southern Brazil urban center: the Guaiba Lake fish community structure through the years. Environmental Biology of Fishes, 105(5), 605-622. https://doi.org/10.1007/s10641-022-01272-2 google scholar
• Halver, J. E. & Hardy, R. W. (1994). L-ascorbyl-2-sulfate alleviates Atlantic salmon scurvy. Proceedings for Experimental Biology and Medicine, 206, 421-424. https://doi.org/10.3181/00379727-206-437 google scholar
• İlkyaz, A. T. & Tosunoğlu, Z. (2019). A blue crab (Callinectes sapidus Rathbun, 1896) individual with partial albino: A case report. Ege Journal of Fisheries and Aquatic Sciences, 36(1), 85-86. doi: 10.12714/ egejfas.2019.36.1.11 google scholar
• İnnal, D., Yavuz-Guzel, E., Dilek, O. G. & Kamanli, S. A. (2019). Kyphosis in Barbus pergamonensis (Cyprinidae-Actinopterygii) from Dalaman Stream Flowing to the Mediterranean Sea. Aquatic Sciences and Engineering, 34(2), 39-45. https://doi.org/10.26650/ ASE2019545494 google scholar
• Jawad, L.A., Akyol, O., & Aydin, İ., (2017a). First records of saddleback syndrome and pughead deformities in the common pandora Pagellus erythrinus (Linnaeus, 1758) (Teleostei: Sparidae) from wild population in the northern Aegean Sea, Turkey. International Journal of Marine Science, 7(19): 183-187. doi:10.5376/ijms.2017.07.0019 google scholar
• Jawad, L. A. & Ibrahim, M. (2021). Characterization and possible cause of the fish anomalies so far reported in the vicinity of Jubail city, Saudi Arabia, Arabian Gulf. In L. A. Jawad (Eds.), The Arabian seas: Biodiversity, Environmental Challenges and Conservation Measures (pp. 1199-1218). Springer, Cham. https://doi.org/10.1007/978-3-030-51506-5_56 google scholar
• Jawad, L. A., & Akyol, O. (2018). Vertebral anomalies in Mullus barbatus (Actinopterygiidae: Osteichthyes: Mullidae), collected from Izmir Bay, North-eastern Aegean Sea, Turkey. International Journal of Marine Science, 8(7), 59. google scholar
• Jawad, L. A., Güçlü, S. S., Gaffaroğlu, M., Karakuş, S. Ü., & Ayata, M. K. (2022b). The first record of pectoral and pelvic fins deformity in the freshwater blenny Salaria fluviatilis (Pisces: Blenniidae) collected from Kızılırmak River, Turkey. Proceedings of the Zoological Institute RAS, 326(3), 143-150. doi: 10.31610/trudyzin/2022.326.3.143 google scholar
• Jawad, L. A., Ibrahim, M. & Waryani, B. (2018a). Incidences of caudal fin malformation in fishes from Jubail City, Saudi Arabia, Arabian Gulf. Fisheries & Aquatic Life, 26(1), 65-71. doi: 10.2478/aopf-2018-0008 google scholar
• Jawad, L., & Güçlü, S. S. (2022). Skeletal deformities in (Teleostei: Cyprinidae) collected from the Dalaman River in southwestern Turkey. Oceanological and Hydrobiological Studies, 51(2), 203-211. google scholar
• Jawad, L., Akyol, O., & Sağlam, C. (2017b). Consecutive repetition of lordosis-kyphosis in silverside Risso, 1810 collected from a wild population in Homa Lagoon, Izmir, Turkey. Fisheries & Aquatic Life, 25(2), 117-122. google scholar
• Jawad, L., Aydin, I., & Akyol, O. (2018b). The first record of pughead deformity in the European hake, Merluccius merluccius (Linnaeus, 1758) collected from the northern Aegean Sea, Turkey. Cahiers de Biologie Marine, 59(2), 137-141. google scholar
• Jawad, L., Şirin, M., Petrtyl, M., Öktener, A., Çelik, M., & Qasim, A. (2022a). Skeletal abnormalities in four fish species collected from the Sea of Marmara, Turkey. Annales Series Historia Naturalis, 32(1), 119-134. google scholar
• Jawad, L.A. & Akyol, O. (2018). Vertebral Anomalies in Mullus barbatus (Actinopterygiidae: Osteichthyes: Mullidae), Collected from Izmir Bay, North-eastern Aegean Sea, Turkey. International Journal of Marine Science, 8(7), 59-65. doi: 10.5376/ijms.2018.08.0007 google scholar
• Jobling, S. & Tyler, C. R. (2003). Endocrine disruption, parasites and pollutants in wild freshwater fish. Parasitology, 126(7), S103-S107. https://doi.org/10.1017/S0031182003003652 google scholar
• Jobling, S., Beresford, N., Nolan, M., Rodgers-Gray, T., Brighty, G. C., Sumpter, J. P. & Tyler, C. R. (2002). Altered sexual maturation and gamete production in wild roach (Rutilus rutilus) living in rivers that receive treated sewage effluents. Biology of reproduction, 66(2), 272281. https://doi.org/10.1095/biolreprod66.2.272 google scholar
• Jones, C. M., Driggers III, W. B., Hoffmayer, E. R. & Galle, L. E. (2017). Capture of a one-eyed bull shark, Carcharhinus leucas (Valenciennes 1839), from the northern Gulf of Mexico. Gulf and Caribbean Research, 28(1), SC8-SC11. https://doi.org/10.18785/gcr.2801.08 google scholar
• Kale, S., Berber, S., Acarlı, D., Demirkıran, T., Vural, P., Acarlı, S., Kızılkaya, B., & Tan, E. (2020). First report of albinism in Turkish crayfish Pontastacus leptodactylus (Eschscholtz, 1823) (Crustacea, Decapoda, Astacidae). Acta Natura et Scientia, 1(1), 36-42. google scholar
• Kolarevic, J., Selset, R., Felip, O., Good, C., Snekvik, K., Takle, H., Ytteborg, E., Bæverfjord, G., Asgard, T. & Terjesen, B. F. (2013). Influence of long-term ammonia exposure on Atlantic salmon (Salmo salar L.) parr growth and welfare. Aquaculture Research, 44, 16491664. https://doi.org/10.1111/j.1365-2109.2012.03170.x google scholar
• Kumar, S., Dar, S. A. & Rani, S. (2023). Effect of Environmental Variability on the Pigmentation of Fishes. In A. Sinha, S. Kumar & K. Kumari (Eds.), Outlook of Climate Change and Fish Nutrition (pp. 153-170). Singapore, Springer Nature Singapore. https://doi.org/10.1007/978-981-19-5500-6_12 google scholar
• Kupsco, A. & Schlenk, D. (2016). Molecular mechanisms of selenium-Induced spinal deformities in fish. Aquatic Toxicology, 179, 143-150. https://doi.org/10.1016/j.aquatox.2016.09.001 google scholar
• Lewis, L. M., Lall, S. P. & Witten, P. E. (2004). Morphological descriptions of the early stages of spine and vertebral development in hatchery-reared larval and juvenile Atlantic halibut (Hippoglossus hippoglossus). Aquaculture, 241(1-4), 47-59. https://doi.org/10.1016/j. aquaculture.2004.08.018 google scholar
• Madsen, L., Arnberg, J. & Dalsgaard, I. (2001). Radiological examination of the spinal column in farmed rainbow trout Oncorhynchus mykiss (Walbaum): experiments with Flavobacterium psychrophilum and oxytetracycline. Aquaculture Research, 32, 235-41. https://doi. org/10.1046/j.1365-2109.2001.00552.x google scholar
• Manizadeh, N., Teimori, A., Hesni, M. A. & Motamedi, M. (2018). Abnormal otoliths in the marine fishes collected from the Persian Gulf and the Gulf of Oman. Acta Ichthyologica et Piscatoria, 48(2), 143-151. doi: 10.3750/AIEP/2350 google scholar
• Mavruk, S., Yüksek, A., Kaya, A. & Avşar, D. (2015). Conjoined twinning incidences in Trachurus mediterraneus (Steindachner, 1868) eggs in Southern Marmara Sea. Turkish Journal of Fisheries and Aquatic Sciences, 15(3), 601-607. doi: 10.4194/1303-2712-v15_3_03 google scholar
• McClendon, J. F. (1912). The effects of alkaloids on the development of fish (Fundulus) embryos. Science, 36(926), 412-414. doi: 10.1126/ science.36.926.412 google scholar
• Metin, G., İlkyaz, A. T., & Kinacigil, H. T. (2009). Morphologic deformation in a ray: a case report. Turkish Journal of Veterinary & Animal Sciences, 33(3), 261-263. google scholar
• Muto, N., Noda, T., Kai, Y. & Nakabo, T. (2013). First record of albinism in the rockfish Sebastes pachycephalus complex (Scorpaeniformes: Scorpaenidae). Ichthyological Research, 60, 195-197. https://doi. org/10.1007/s10228-012-0320-0 google scholar
• Nguyen, N. H., Whatmore, P., Miller, A. & Knibb, W. (2016). Quantitative genetic properties of four measures of deformity in yellowtail kingfish Seriola lalandi Valenciennes, 1833. Journal of Fish Diseases, 39, 217228. https://doi.org/10.1111/jfd.12348 google scholar
• Ortiz-Delgado, J. B., Fernández, I., Sarasquete, C. & Gisbert, E. (2014). Normal and histopathological organization of the opercular bone and vertebrae in gilthead sea bream Sparus aurata. Aquatic Biology, 21(1), 67-84. https://doi.org/10.3354/ab00568 google scholar
• Özok, N., Oğuz, A. R., Doğan, A., & Ergöz, B. (2017). Oxidative damage in some tissues of Van fish (Alburnus tarichi Güldenstâdt, 1814) having abnormal ovary. Yuzuncu Yıl University Journal of Agricultural Sciences, 27(3), 447-452. google scholar
• Plaut, I. (2001). Critical swimming speed: its ecological relevance. Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, 131(1), 41-50. https://doi. org/10.1016/S1095-6433(01)00462-7 google scholar
• Popper, A. N., Ramcharitar, J. & Campana, S. E. (2005). Why otoliths? Insights from inner ear physiology and fisheries biology. Marine and Freshwater Research, 56(5), 497-504. doi: 10.1071/MF04267 google scholar
• Reis, İ., Ateş, C., & Jawad, L. (2023). The asymmetry in the sagitta of four mugilid species obtained from Köyceğiz Lagoon, Aegean Sea, Turkey. Journal of Fish Biology, 103(3), 666-674. google scholar
• Riley, B. B., Zhu, C., Janetopoulos, C. & Aufderheide, K. J. (1997). A critical period of ear development controlled by distinct populations of ciliated cells in the zebrafish. Developmental Biology, 191(2), 191201. https://doi.org/10.1006/dbio.1997.8736 google scholar
• Rutkayová, J., Jawad, L., Nebesárová, J., Benes, K., Petrásková, E. & Naslund, J. (2016). First records of scale deformities in seven freshwater fish species (Actinopterygii: Percidae and Cyprinidae) collected from three ponds in the Czech Republic. Acta Ichthyologica et Piscatoria, 46(3), 225-238. doi: 10.3750/AIP2016.46.3.06 google scholar
• Sadler, J., Pankhurst, P. M. & King, H. R. (2001). High prevalence of skeletal deformity and reduced gill surface area in triploid Atlantic salmon (Salmo salar L.) Aquaculture, 198, 369-386. https://doi.org/10.1016/ S0044-8486(01)00508-7 google scholar
• Şenbahar, A. M., & Özaydın, O. (2019). Occurence of an abnormal oneeyed black anglerfish Lophius budegassa (Spinola, 1807) from Central Aegean Sea, Turkey. Ege Journal of Fisheries and Aquatic Sciences, 36(4), 401-403. google scholar
• Sfakianakis, D. G., Koumoundouros, G., Divanach, P. & Kentouri, M. (2004). Osteological development of the vertebral column and of the google scholar
• fins in Pagellus erythrinus (L. 1758). Temperature effect on the developmental plasticity and morpho-anatomical abnormalities. Aquaculture, 232, 407-424. https://doi.Org/10.1016/j.aquaculture.2003.08.014 google scholar
• Sweeting, R. M., Beamish, R. J. & Neville, C. M. (2004). Crystalline otoliths in teleosts: Comparisons between hatchery and wild coho salmon (Oncorhynchus kisutch) in the Strait of Georgia. Reviews in Fish Biology and Fisheries, 14, 361-369. https://doi.org/10.1007/s11160-005-3793-3 google scholar
• Tan, S., Bulut, M. & Bilen, S. (2015). Morphological malformations of the sea bass (Dicentrarchus labrax): Comparison between hormone injected and non-injected fish. Iranian Journal of Fisheries Sciences, 14(1), 130-135. google scholar
• Taslima, K., Al-Emran, M., Rahman, M. S., Hasan, J., Ferdous, Z., Rohani, M. F. & Shahjahan, M. (2022). Impacts of heavy metals on early development, growth and reproduction of fish-A review. Toxicology Reports, 9, 858-868. https://doi.org/10.1016/j.toxrep.2022.04.013 google scholar
• Teimori, A., Jawad, L. A. J., Al-Kharusi, L. H., Al-Mamry, J. M. & Reichenbacher, B. (2012). Late Pleistocene to Holocene diversification and historical zoogeography of the Arabian killifish (Aphanius dispar) inferred from otolith morphology. Scientia Marina, 76(4), 637-645. doi: 10.3989/scimar.03635.26C google scholar
• Thomas, O. R. & Swearer, S. E. (2019). Otolith biochemistry—a review. Reviews in Fisheries Science & Aquaculture, 27(4), 458-489. https://doi.org/10.1080/23308249.2019.1627285 google scholar
• Toften, H. & Jobling, M. (1996). Development of spinal deformities in Atlantic salmon and Arctic charr fed diets supplemented with oxytetracycline. Journal of Fish Biology, 49, 668-77. https://doi. org/10.1111/j.1095-8649.1996.tb00063.x google scholar
• Tokac, A., Akyol, O., Aydin, C., & Ulaş, A. (2013). First report of abnormal pigmentation in a surmullet, Mullus surmuletus L. (Osteichthyes: Mullidae). Turkish Journal of Veterinary & Animal Sciences, 37(6), 754755. google scholar
• Ugbomeh, A. P., Jawad, L. A., Frank, J. J. & Akani, G. C. (2022). Report on the incidences of skeletal anomalies in three fish species from Bonny tributary (Niger delta), Nigeria. Proceedings of the Zoological Institute RAS, 326(1), 14-22. doi: 10.31610/trudyzin/2022.326.1.14 google scholar
• Ulutürk, E., Bayhan, B., Filiz, H., Acarlı, D., & Irmak, E. (2015). Abnormalities in the wedge sole Dicologlossa cuneata (Moreau, 1881) and black sea turbot Scophthalmus maeoticus (Pallas, 1814) from Turkish seas. Journal of Aquaculture Engineering and Fisheries Research, 1(2), 98-103. google scholar
• Ünal, G., Türkoğlu, V., Oğuz, A. R., & Kaptaner, B. (2007). Gonadal histology and some biochemical characteristics of Chalcalburnus tarichi (Pallas, 1811) having abnormal gonads. Fish Physiology and Biochemistry, 33, 153-165. google scholar
• Uzer, U. & Karakulak, F. S. (2022). A Record of Fish Anomaly from the Sea of Marmara, Turkey: European Hake (Merluccius merluccius Linnaeus, 1758) Missing the Right Eye. Aquatic Sciences and Engineering, 37(2), 64-68. https://doi.org/10.26650/ASE20211005479 google scholar
• Wang, J., Hou, L., Zhang, R., Zhao, X., Jiang, L., Sun, W., An, J. & Li, X. (2007). The tyrosinase gene family and albinism in fish. Chinese Journal of Oceanology and Limnology, 25, 191-198. https://doi. org/10.1007/s00343-007-0191-9 google scholar
• Wells, D. E. & Cowan, A. A. (1982). Vertebral dysplasia in salmonids caused by the herbicide trifluralin. Environmental Pollution Series A, Ecological and Biological, 29(4), 249-260. doi: 10.1016/0143-1471(82)90066-6 google scholar
• Wiegertjes, G. F., Stet, R. M., Parmentier, H. K. & van Muiswinkel, W. B. (1996). Immunogenetics of disease resistance in fish: a comparative approach. Developmental & Comparative Immunology, 20(6), 365381. https://doi.org/10.1016/S0145-305X(96)00032-8 google scholar
• Yedier, S., & Bostanci, D. (2019). Aberrant crystallization of blackbellied angler Lophius budegassa Spinola, 1807 otoliths. Cahiers de Biologie Marine, 60(4), 527-533. google scholar
• Yedier, S., & Bostanci, D. (2020). Aberrant otoliths in four marine fishes from the Aegean Sea, Black Sea, and Sea of Marmara (Turkey). Regional Studies in Marine Science, 34, 101011. google scholar
• Yedier, S., Bostanci, D., & Türker, D. (2023). Morphological and morphometric features of the abnormal and normal saccular otoliths in flatfishes. The Anatomical Record, 306(3), 672-687. google scholar