COMPARATIVE ANALYSIS OF LONG-TERM ALTERATIONS IN STRUCTURAL ORGANIZATION OF ZOOBENTHOS UNDER PERMANENT ANTHROPOGENIC IMPACT (СASE STUDY: SEVASTOPOL BAY, CRIMEA)
Keywords:
macrozoobenthos, structure of assemblages, long-term changes, the Black Sea, Sevastopol bayAbstract
The results of benthic survey of soft bottoms in the Sevastopol bay had been performed in 2001 are presented. This bay is under permanent technogenic impact and is being considered as one of the most polluted areas along the coastal part of Crimea. The peculiarities of quantitative development of macrobenthic assemblages were characterized, and taxa which define the structural organization of assemblages were distinguished. In spite of strong influence of technogenic pollution, Sevastopol bay can be attributed to faunistically rich areas of Crimean coast and the Black Sea at whole. Using the methods of multivariate statistical analysis, suites of 7 – 8 environmental variables (from the 32 ones considered in the analysis) that best explained the observed benthic spatial distribution pattern were identified. It was noted that chloroform-extracted bitumens, which traditionally are being attributed to the most important abiotic factors affecting to bottom communities, were not included into set of the most significant variables influencing on macrobenthos. Comparative analysis of materials which had been collected in extremely far-separated time periods (1928 – 2001) allowed revealing availability of long-term tendencies: increasing of average benthos biomass values in the bay; and change in trophic structure of benthos when detritus-feeders became prevail. Such alterations can be considered as one of the way of adaptive response of the bay’s ecosystem under growing of organic enrichment in Crimean coastal waters.
References
Boltacheva N. A., Milchakova N. A., Mironova N. V. Eutrophication-induced changes in benthos of the Kalamitsky bay // Ecologiya Morya. – 1999. – 49. – P. 5 – 9. (In Russian).
Boltacheva N. A., Kolesnikova E. A., Mazlumyan S.A., Revkov N. K. Sand output influence on the macrozoobenthos diversity in the Donuzlav shallow bay (western Crimean coast) / Eds. Eremeev V.N., Gaevskaya A.V. Modern condition of biological diversity in near-shore zone of Crimea (the Black Sea sector). – Sevastopol: EKOSI-Gidrofizika, 2003. –P. 283 – 288. (In Russian).
Chigirin N. I. Soft-bottom benthos of the Sevastopol bay. – Archive of IBSS. – 1938. – 43 p., plus 20 photo pictures. – Reg. № 318-1985. (In Russian).
Clarke K. R., Gorley R. M. PRIMER v.5: User Manual / Tutorial. Primer-E: Plymoith, 2001. – 92 p.
Clarke K.R., Warwick R.M. Change in marine communities: an approach to statistical analysis and interpretation, 2nd edition. PRIMER-E: Plymouth, 2001. – 154 p.
Field J. G., Clarke K. R., Warwick R. M. A practical strategy for analyzing multispecies distribution patterns // Mar. Ecol. Prog. Ser. – 1982. – 8. – P.37 – 52.
Ignatieva O. G., Ovsyaniy E. I., Romanov A. S. et al. Complex assessment of bottom sediment pollution in Sevastopol bay // Systems of environmental monitoring. 2002. Part 2. Monitoring and Modelling: Proc. Inter. Sci./Tech. seminar. – Sevastopol, 2003. – P. 93 – 95. (In Russian).
Kisseleva M. I., Revkov N. K., Kopytov Yu. P. The morden state and the long–term changes of zoobenthos in Streletskaya Bay (Sevastopol area) // Hydrobiol. Journ. – 1999. – 35. (In English). (Originally published in Hydrobiology journal. – 1997. – 33, 1. – P. 3 – 13. In Russian).
Kondratyeva S. I., Lyashenko S. V. Features of distribution of biogenic elements in a water column and in bottom waters of the Sevastopol bay // Ecological safety of coastal and shelf zones and complex resources use of the shelf. – Proc., MHI. – Sevastopol: EKOSI-Gidrofizika, 2003. – 9. – P. 82 – 94. (In Russian).
Kostova S. K. Distribution of mercury in a surface layer of bottom sediments in Sevastopol bays (Black Sea) // Ecological safety of coastal and shelf zones and complex resources use of the shelf. – Proc., MHI. – Sevastopol: EKOSI-Gidrofizika, 2005. –12. – P. 273 – 279. (In Russian).
Lazorenko G. E. Natural radionuclide 210Pb in bottom sediments of Sevastopol bay (Black Sea) // Mar. ecol. jour. – 2003. – 2, 2. – P. 81 – 84. (In Russian).
Maltsev V. I. Application of the Index of Functional Abundance for studies of zoocenoses structure // Hydrobiol. Journ. – 1990. – 26, №1. – P. 87 – 89. (In Russian).
Mazlumyan S. A., Sergeeva N. G. Structure of benthos communities in conditions of chronic pollution // Dep. VINITI, 29.07.88 № 6569 – В88. – Sevastopol. – 1988. – 15p. (In Russian).
Mazlumyan S. A., Boltacheva N. A., Kolesnikova E. A. The soft-bottom zoobenthos diversity changes in the southeast Crimean region (Lisya bay as an example) / Eds. Eremeev V. N., Gaevskaya A.V. Modern condition of biological diversity in near-shore zone of Crimea (the Black Sea sector). – Sevastopol: EKOSI-Gidrofizika, 2003. – P. 229 –
(In Russian).
Milovidova N. Yu. Changes of bottom biocenoses of the Sevastopol bays for the period 1913 – 1973 // Biologiya morya. – 1975. – № 35. – P. 117 – 124. (In Russian).
Milovidova N. Yu., Kiryukhina L. N. The Black Sea macrozoobenthos in sanitary-biological aspect. – Kiev: Nauk. Dumka, 1985. – 102 p. (In Russian).
Mironov O. G., Kirjukhina L. N., Alyomov S. V. Sanitary-biological aspects of the Sevastopol bays ecology in XX century. – Sevastopol: EKOSI-Gidrofizika, 2003. – 185 p. (In Russian).
Osadchaya T. S., Ovsyaniy E. I., Kemp R. et al. Organic carbon and oil hydro-carbons in bottom sediments of Sevastopol Bay (the Black Sea) // Mar. Ecol. Journ. – 2003. – 2, 2. – P. 94 – 101. (In Russian).
Ovsyaniy E. I., Romanov A. S., Ignatieva O. G. Distribution of heavy metals in a surface layer of bottom sediments in Sevastopol bay (Black sea) // Mar. Ecol. Journ. – 2003. – 2, 2. – P. 85 – 93. (In Russian).
Petrov A. N., Alyomov S. V. Distribution pattern, characteristics of number and conditions of zoobenthos depending upon pollutant loading into the bays / Edit. Oven L.S. Ichthyofauna of the Black Sea bays under anthropogenic impact. – Kiev: Nauk. dumka, 1993. – P. 25 – 45. (In Russian).
Petrov A. N., Nevrova E. L., Malakhova L. V. Multivariate analysis of benthic diatoms distribution across the multidimensional space of the environmental factors gradient in Sevastopol bay (the Black Sea, Crimea). Mar. Ecol. Journ. – 2005. – 4, № 3. – P. 65 – 77. (In Russian).
Revkov N. K. The long-term changes of zoobenthos over the soft bottoms in the southwest Crimea region / Eds. Eremeev V. N., Gaevskaya A.V. Modern condition of biological diversity in near-shore zone of Crimea (the Black Sea sector). – Sevastopol: EKOSI-Gidrofizika, 2003. – P. 222 – 228. (In Russian).
Revkov N. K. Taxonomical composition of the bottom fauna at the Black Sea Crimean coast / Eds. Eremeev V. N., Gaevskaya A. V. Modern condition of biological diversity in near-shore zone of Crimea (the Black Sea sector). – Sevastopol: EKOSI-Gidrofizika, 2003. – P. 209 – 218, 326 – 338. (In Russian).
Revkov N. K., Kolesnikova E. A., Valovaya N. A. et al. Benthos of coastal zone of southern Crimea (Balaklava – Aya Cape): composition and state // Hydrobiol. Journ. – 2000. – 36, 4. – P. 3 – 10. (In Russian).
Revkov N. K., Nikolaenko T. V. Biodiversity of zoobenthos in the coastal zone of the south coast of Crimea (Laspi Bay) // Russian Journ. Mar. Biol. – 2002. – 28, 3. – P. 151 – 162.
Shalovenkov N. N. Change of species composition of benthos communities of the soft-bottoms in Sevastopol bay within a century // Ecological safety of coastal and shelf zones and complex resources use of the shelf. – Proc., MHI Sevastopol. – 2003. – 9. – P. 262 – 267. (In Russian).
Sinegub I.A. Macrozoobenthos. Bottom communities in 1984 – 2002 / The northwestern part of the Black Sea: Biology and ecology. – Kiev: Nauk. dumka, 2006. – P. 276 – 286. (In Russian).
