Organochlorine pesticides in fat tissue of cetaceans at the Crimean coast of the Black Sea

Accumulation of persistent organochlorine pesticides (OCP) in fat tissue was examined for the mammals found released ashore along the Crimean coast of the Black Sea in 2018–2022. This group of animals is positioned at the top of food chain in the local marine ecosystem. Statistically significant dependence of the accumulation on sex (males are more contaminated than females) and age (adults and juveniles are more contaminated than calves and neonates) is found. Besides, the pesticides concentration in fat from dorsal tissue is generally higher than in fat from caudal stem, but the difference is not significant. In the tissue of harbor porpoises and common dolphins, the mean OCP concentration decreased in the order: p,p′-DDE > β-HCH > p,p′-DDD > p,p′-DDT, whereas bottlenose dolphins had the order: p,p′-DDE > p,p′-DDD > β-HCH > p,p′-DDT. The most common metabolites were DDE, and their accumulation was the highest. The concentration of DDD was considerably lower, and significant accumulation of DDT was observed rarely, so the mean concentration of these group of metabolites was the lowest.

1. Barabashin, T.O., Korablina, I.V., Pavlenko, L.F., Skrypnik, G.V., and Korotkova, L.I., Methodological support of pollution monitoring of the Azov and Black Seas water bodies, Vodnye bioresursy i sreda obitaniya, 2018, vol. 1, no. 3−4, pp. 9−27. doi:10.47921/2619-1024_2018_1_3-4_9

2. Birkun, A.A., Nikitina, V.N., Krivokhizhin, S.V., Demchenko, V.F., and Davidyuk, E.I., Organochlorine pesticides in the fat of Black Sea dolphins, Veterinariya, 1993, no. 6, pp. 50–52.

3. Krivokhizhin, S.V., Black Sea organochlorine pollution, its sources and main targets, Okhrana okruzhayushchey sredy i zapovednoe delo, 2022, no. 4, pp. 52–61.

4. Logominova, I.V., Malakhova, L.V., Malakhova, T.V., Artov, A.M., Korosteleva, A.V., and Postnikova, A.N., New data on organochlorine pollutants in the subcutaneous fat of the Black Sea cetaceans, Trudy Karadagskoy nauchnoy stantsii im. T.I. Vyazemskogo — prirodnogo zapovednika RAN, 2018, vol. 3, no. 4(8), pp. 16–25. doi:10.21072/eco.2021.08.02

5. Melnikov, N.N., Novozhilov, K.V., Belan, S.R., and Pylova, T.N., Spravochnik po pestitsidam (Handbook of Pesticides), Moscow: Khimiya, 1985.

6. Siverina, T.V. and Barabashin, T.O., Accumulation of organochlorine compounds in organs and tissues of commercial fish in the Black Sea, in Sovremennyye problemy i perspektivy razvitiya rybokhozyaystvennogo kompleksa (Modern problems and prospects for the development of the fishery complex: materials of the 7th scientific-practical. conf. young. learned. with int. participation), Moscow: VNIRO, 2019, pp. 438−440.

7. Fedorov, L.A., Pestitsidy — toksicheskiy udar po biosfere i cheloveku (Pesticides are a toxic blow to the biosphere and humans), Moscow: Nauka, 1999.

8. Borrell, A., Aguilar, A., Cantos, G., Lockyer, C., Heide-Jørgensen, M.P., and Jensen J., Organochlorine residues in harbour porpoises from Southwest Greenland, Environmental Pollution, 2004, vol. 128, no. 3, pp. 381–391. doi:10.1016/j.envpol.2003.09.011

9. Durante, C.A., Santos-Neto, E.B., Azevedo, A., Crespo, E.A., and Lailson-Brito, J., POPs in the South Latin America: Bioaccumulation of DDT, PCB, HCB, HCH and Mirex in blubber of common dolphin (Delphinus delphis) and Fraser’s dolphin (Lagenodelphis hosei) from Argentina, Sci. Total Environ., 2016, vol. 572, pp. 352–360. doi:10.1016/j.scitotenv.2016.07.176

10. Grung, M., Lin, Y., Zhang, H., Steen, A.O., Huang, J., Zhang, G., and Larssen, T., Pesticide levels and environmental risk in aquatic environments in China — A review, Environment International, 2015, vol. 81, pp. 87–97. doi:10.1016/j.envint.2015.04.013

11. Hansen, L.J., Schwacke, L.H., Mitchum, G.B., Hohn, A.A., Wells, R.S., Zolman, E.S., and Fair, P.A., Geographic variation in polychlorinated biphenyl and organochlorine pesticide concentrations in the blubber of bottlenose dolphins from the US Atlantic coast, Sci. Total Environ., 2004, vol. 319, pp. 147–172. doi:10.1016/S0048-9697(03)00371-1

12. Lipscomb, T., Schulman, F., Moffett, D., and Kennedy, S., Morbilliviral disease in an Atlantic bottlenose dolphin (Tursiops truncatus) from the 1987–88 epizootic, J. Wildl. Dis., 1994, vol. 30, pp. 567–571.

13. Malakhova, L., Lobko, V., Logominova, I., Malakhova, T., and Murashova, A., DDT in Crimea coastal waters and blubber of Black Sea cetaceans, IOP Conf. Ser.: Earth Environ. Sci., 2021, vol. 937, 022019. doi:10.1088/1755-1315/937/2/022019

14. Popa, O.M., Trif, A., Marine, N., and Ursu, N., Organochlorine pesticides in the Black Sea dolphins, Lucrări Ştiinłifice Medicină Veterinară, 2008, vol. 41, pp. 768–773.

15. Reckendorf, A., Siebert, U., Parmentier, E., and Das, K., Chemical Pollution and Diseases of Marine Mammals, in Marine Mammals, A Deep Dive into the World of Science, Brennecke, D., Knickmeier, K., Pawliczka, I., Siebert, U., and Wahlberg, M., eds, Springer, Cham., 2023, pp. 63−78. doi:10.1007/978-3-031-06836-2_5

16. Ross, P.S., The role of immunotoxic environmental contaminants in facilitating the emergence of infectious diseases in marine mammals, Hum. Ecol. Risk Assess., 2002, vol. 8, no. 2, pp. 277–292. doi:10.1080/20028091056917

17. Santos-Neto, E.B., Azevedo-Silva, C.E., Bisi, T.L., Santos, J., Meirelles, A.C.O., Carvalho, V.L., Azevedo, A.F., Guimarães, J.E., and Lailson-Brito, J., Organochlorine concentrations (PCBs, DDTs, HCHs, HCB and MIREX) in delphinids stranded at the northeastern Brazil, Sci. Total Environ., 2014, vol. 472, pp. 194–203. doi:10.1016/j.scitotenv.2013.10.117

18. Tanabe, S., Madhusree, B., Amaha, A.O., Tatsukawa, R., Miyazaki, N., Ozdamar, E., Aral, O., Samsun, O., and Ozturk, B., Persistent organochlorine residues in harbour porpoise (Phocoena phocoena) from the Black Sea, Mar. Pollut. Bull., 1997, vol. 34, no. 5, pp. 338–347.

19. Torres, P., Miglioranza, K.S.B., Uhart, M.M., Gonzalez, M., and Commendatore, M., Organochlorine pesticides and PCBs in Southern Right Whales (Eubalaena australis) breeding at Península Valdés, Argentina, Sci. Total Environ., 2015, vol. 518–519, pp. 605–615. doi:10.1016/j.scitotenv.2015.02.064

20. Vos, J.G., Bossart, G., Fournier, M., and O’Shea, T., eds, Toxicology of Marine Mammals, 1st ed., London: CRC Press, 2003. doi:10.1201/9780203165577

21. Wang, K.R., Payne, P.M., and Thayer, V.G., Coastal stock(s) of Atlantic bottlenose dolphin: status review and management, U.S. Dep. Commer., NOAA Tech. Memo. NMFS-OPR-4, 1994.

22. Weijs, L., Das, K., Neels, H., Blust, R., and Covaci, A., Occurrence of anthropogenic and naturally-produced organohalogenated compounds in tissues of Black Sea harbour porpoises, Mar. Pollut. Bull., 2010, vol. 60, no. 5, pp. 725–731. doi:10.1016/j.marpolbul.2009.11.022

23. Weijs, L., Vijayasarathy, S., Villa, C.A., Neugebauer, F., Meager, J.J., and Gaus, C., Screening of organic and metal contaminants in australian humpback dolphins (Sousa sahulensis) inhabiting an urbanised embayment, Chemosphere, 2016, vol. 151, pp. 253–262. doi:10.1016/j.chemosphere.2016.02.082