More than 70% of the beaches in the World are in decreasing stage during the past few decades, and the Black sea beaches are not exclusion. The paper gives a brief conceptual review of published and unpublished results of author's longterm complicated study in different areas of the Crimean coastline. Interconnections between marine communities and beach erosion are analyzed as well as some anthropogenic impacts on processes in beach area. Selfaccelerating mechanism of beach erosion and marine communities degradation was suggested. Two interrelated components in the system "beach-sea" are crucial in regulating the balance of sand on the beach in our case - the coastal vegetation and benthic communities producing clamshells. Two stable state of coastline - fluctuating stable sand beach and no sand beach state - can be. It should be noted that with the rise of sea level, is now observed, the steady state beach is only possible if the existing balance of sand is positive. New perspectives for rational management of sandy beaches require paradigm shifts. Sustainable long-term management of our beaches requires a set of alternative strategies for environmental management and the timely switch from one strategy to the alternative one.
___
Akbulut, M., Ozturk, M. and Ozturk, M. 2002. The benthic macroinvertebrate fauna of Sarikum Lake and Spring waters (Sinop). Turkish J. Marine Sci., 8: 103-119.
Armonies, W. and Reise, K. 2000. Faunal diversity across a sandy shore. Marine Ecology Progress Series, 196: 49-57.
Aybulatov, N.A. 1994. Ekspansiya cheloveka v ptibrezhno- shelfovuyu zonu. Vestnik Rossiiskoi Akademii Nauk, 64(4): 940-948 (in Russian).
Bird, E.C.F. 2000. Coastal geomorphology. An introduction. John Wiley and Sons, Chichester, 322 pp.
Boltachyova, N.A., Kolesnikova, E.A. and Revkov, N.K. 2002. Fauna makrozoobentosa limana Donuzlav. Ekologia Morya, 62: 10-13 (in Russian).
Defeo, O., Anton McLachlan, A., Schoeman, D.S., Schlacher, T.A., Dugan, J., Jones, A., Lastra, M. and Scapini, F. 2009. Threats to sandy beach ecosystems: A review. Estuarine, Coastal and Shelf Science, 81: 1-12.
Dent, C.L., Cumming, G.S. and Carpenter, S.R. 2002. Multiple states in river lake ecosystems. Philosophical Transactions of the Royal Society, 357: 635-645.
Gomoiu, M.-T., Alexandrov, B., Shadrin, N. and Zaitsev, Y. 2002. The Black Sea - a recipient, donor and transit area for alien species. In: Invasive Aquatic Species of Europe. Distribution, Impacts and Management. Kluwer Academic Publishers, Dordrecht; Boston; London: 341-350.
Holling, C.S. 2001. Understanding the complexity of economic, ecological, and social systems. Ecosystems, 4: 390-405
Korczagin, I. and Jozwiak, T. 1997. Preservation of Hel peninsula. In: K. Dubsky (Ed.) Public participation in environmental management. Ando Publ., Praha: 101- 103.
Krasilov, V.?. 2001. Model biosfernykh krisisov. In: Ecosistemnye perestroyki i evolutsya biosphery. Paleont. Institute Publ., Moscow: 9-16 (in Russian).
Micu, D. and Micu, S. 2006. Recent records, growth and proposed IUCN status of Donacilla cornea (Poli, 1795) from the Romanian Black sea. Certetari marine, 36: 117-132.
Mironov, S.S., Veremeeva, E.V. and Shadrin, N.V. 2007. Mnogoletniye izmeneniya v poseleniyakh molluska- vselentsa Anadara inaequivalvis (Bruguierse, 1789) v Opukskom zapovednike (Krym, Chernoye more). In: Intern. Conf. Estestvennye i invaziynye protsesy formirovaniya bioraznoobraziya vodnykh i nazemnyx ecosystem, 5-8 June, Rostov-na-Donu: 209-210 (in Russian).
Mukai, H. 2010. Habitat diversity and its lost in Japanese coastal marine ecosystems. In: Int. Symposium on Integrated coastal management for marine biodiversity in Asia, January 14-15, Kyoto, Japan: 25-27.
Obryvkov, V.A., Sosnovskaya, L.V. and Shadrin, N.V. 2002. Vliyanie klimaticheskogo factora na razrushenie beregovoi polosy: primer Orlovskogo plyazha (SW Krym). In: N.V. Shadrin (Ed.), Problemy ustoichivogo razvitiya primorskikh gorodov. Akvavita, Sevastopol: 167-177 (in Russian).
Scheffer, M. 2001. Alternative attractors of shallow lakes. The Scientific World, 1: 254-263.
Scheffer, M., Bascompte, J. and Brock, W.A. 2009. Early- warning signals for critical transitions. Nature, 461: 53-59.
Schlacher, T.A., Dugan, J., Schoeman, D.S., Lastra, M., Jones, A., Scapini, F., McLachlan, A. and Defeo, O. 2007. Sandy beaches at the brink. Diversity and Distributions, 13: 556-560.
Shadrin, N.V. 1998. Algae debris in the Black sea supralittoral: ecological and geochemical roles. Dopovydi NAS Ukraine, 3: 192-196.
Shadrin, N.V. and Afanasova, T.A. 2009. Pitanie i raspredelenie Rapana venosa (Valenciennes, 1846) v akvatorii Opukskogo zapovednika. Marine Ecological J., 8(2): 24-25 (in Russian).
Shadrin, N.V., Mironov, S.S., Kholoptsev, A.V. and Obryvkov, V.A. 2004. Dolgovremennye izmeneniya populyatsii molluskov v bukhte Kruglaya (Chernoye more) v svjazi s variabelnostyu rezhima atmosfernykh osadkov. In: G.G. Matishov, V.V Denisov and A.D. Chinarina (Eds.), Shelf zoobenthos investigations. Information support of the ecosystem investigations. Publ. KSC RAS, Apatity: 126-139 (in Russian).
Shadrin, N.V. and Sosnovskaya, L.V. 2001. Razrushenie beregovoi polosy i sostoyanie morskikh soobschestv: vsaimosvyaz prichin i sledstvii. Naukovi zapiski Ternoplskogo Natsyonalnogo pedagogichnogo universiteta. Seriya Biologiya, 3(41): 170-171 (in Russian).
Shadrin, N.V., Zagorodnyaya, Yu.A., Nevrova, E.L., Naidanova, O.G. and Senicheva, M.I. 2001. Hydroecologicheskaya sistema Bakalskoy kosy: Problemy izucheniya I sokhranenia unikalnogo bioraznoobrazia. Naukovi zapiski Ternopol derzh. Peduniversiteta. Seria Biologiya, 3(41): 168-171 (in Russian).
Uryupova, E.F. and Shadrin, N.V. 2009. Crustaceans in the Splash and Upper Sublittoral Zones of the Opukskii Nature Reserve (Crimea, Black Sea). Moscow Univ. Biol. Sci. Bull., 64 (1): 44-48.
Walker, B., Holling, C.S. and Carp, S.R. 2004. Resilience, adaptability and transformability in social-ecological systems. http://www.ecologyandsociety.org/vol9/iss2/art5
Zenkovich, V.P. 1960. Berega Chernogo i Azovskogo morei. Gosizdat geograficeskoi literatury, Moscow, 376 pp. (in Russian).