Medvedeva A. V., Stanichny S. V. Outbreak of marine mucilage in the Sea of Marmara in 2021. Marine Biological Journal, 2022, vol. 7, no. 1, pp. 107-109. https://doi.org/10.21072/mbj.2022.07.1.09



An outbreak of marine mucilage in the Sea of Marmara in the spring and summer of 2021 is described. Based on satellite data, an analysis of similar outbreaks in the previous decade was carried out. As shown, the current situation is unique both in terms of the water area coverage and phenomenon duration. The need for comprehensive research is emphasized in order to understand the causes of the occurrence of the marine mucilage and the consequences of its effect on the marine ecosystem and economic activities in coastal waters.


A. V. Medvedeva

junior researcher



S. V. Stanichny

head of department, PhD




Aktan Y., Dede A., Çiftci P. S. Mucilage event associated with diatoms and dinoflagellates in Sea of Marmara, Turkey. Harmful Algae News, 2008, no. 36, pp. 1–3.

Balkıs N., Atabay H., Türetgen I., Albayrak S., Balkıs H., Tüfekçi V. Role of single-celled organisms in mucilage formation on the shores of Büyükada Island (the Marmara Sea). Journal of the Marine Biological Association of the United Kingdom, 2001, vol. 91, iss. 4, pp. 771–781. http://dx.doi.org/10.1017/S0025315410000081

Danovaro R., Umani S. F., Pusceddu A. Climate change and the potential spreading of marine mucilage and microbial pathogens in the Mediterranean Sea. PLoS One, 2009, vol. 4, iss. 9, art. no. e7006 (8 p.). https://doi.org/10.1371/journal.pone.0007006

Lancelot C. The mucilage phenomenon in the continental coastal waters of the North Sea. Science of the Total Environment, 1995, vol. 165, iss. 1–3, pp. 83–102. https://doi.org/10.1016/0048-9697(95)04545-C

McKenzie L., Sims I., Beuzenberg V., Gillespie P. Mass accumulation of mucilage caused by dinoflagellate polysaccharide exudates in Tasman Bay, New Zealand. Harmful Algae, 2002, vol. 1, iss. 1, pp. 69–83. https://doi.org/10.1016/S1568-9883(02)00006-9

Özalp H. B. First massive mucilage event observed in deep waters of Çanakkale Strait (Dardanelles), Turkey. Journal of the Black Sea / Mediterranean Environment, 2021, vol. 27, no. 1, pp. 49–66.

Precali R., Giani M., Marini M., Grilli F., Ferrari C. R., Pečar O., Paschini E. Mucilaginous aggregates in the northern Adriatic in the period 1999–2002: Typology and distribution. Science of the Total Environment, 2005, vol. 353, iss. 1–3, pp. 10–23. https://doi.org/10.1016/j.scitotenv.2005.09.066

Xu H., Yu G., Jiang H. Investigation on extracellular polymeric substances from mucilaginous cyanobacterial blooms in eutrophic freshwater lakes. Chemosphere, 2013, vol. 93, iss. 1, pp. 75–81. https://doi.org/10.1016/j.chemosphere.2013.04.077



Download data is not yet available.