IMIS

Publications | Institutes | Persons | Datasets | Projects | Maps
[ report an error in this record ]basket (0): add | show Print this page

Ctenophores-invaders and their role in the trophic dynamics of the planktonic community in the coastal regions off the Crimean coasts of the Black Sea (Sevastopol Bay)
Finenko, G.A.; Romanova, Z.; Abolmasova, G.I.; Anninsky, B.E.; Pavlovskaya, T.V.; Bat, L.; Kideys, A.E. (2006). Ctenophores-invaders and their role in the trophic dynamics of the planktonic community in the coastal regions off the Crimean coasts of the Black Sea (Sevastopol Bay). Oceanology (Bulgaria) 46(4): 472-482. dx.doi.org/10.1134/S0001437006040047
In: Океанология = Okeanologija = Oceanology (Bulgaria). Bulgarian Academy of Sciences: Varna. ISSN 0324-0878, more

Available in  Authors | Dataset 

Keyword
    Marine/Coastal

Authors  Top | Dataset 
  • Finenko, G.A.
  • Romanova, Z.
  • Abolmasova, G.I.
  • Anninsky, B.E.
  • Pavlovskaya, T.V.
  • Bat, L., more
  • Kideys, A.E., more

Abstract
    The abundances, biomasses, and population structures of two introduced ctenophore species—Mnemiopsis leidyi and Beroe ovata—were monitored along with mesoplankton in the near-shore waters of the northern Black Sea (Sevastopol Bay and adjacent regions)over a period of four years (2000–2003), after the B. ovata invasion. The annual dynamics of the M. leidyi population were similar in these years: very low abundances and biomass values were observed during the major part of the year (unlike previous years) with a shortterm peak in the summer-early autumn. B. ovata development during the growth in the M. leidyi biomass resulted in a sharp fall in the M. leidyi biomass down to extremely low values. The interannual differences in the populations of both ctenophore species were reflected by their quantitative parameters: the maximum biomass of M. leidyi varied from 790 g/m2 in 2001 to 211–266 g/m2 in other years. The maximum biomass values of B. ovata (38.9 and 32.5 g/m2) were observed in 2001 and 2003, respectively. In 2000–2003, from July to September, during the peak in mnemiopsis development, the population consumed from 1.9 ± 0.4 to 13.4 ± 5.7% of the mesoplankton biomass per day, while in the years of B. ovata absence, these values were as high as 30–40%. For the first time, the grazing rate of microzooplankton by M. leidi larvae was estimated. In August 2003, the maximum daily consumption rate was as great as 23–25% of the microzooplankton biomass. The daily rations of the mnemiopsis larvae on microzooplankton were close or even higher than those on mesoplankton.

Dataset
  • Finenko, G.; Abolmasova, G.; Datsyk, N.; Anninsky, B.; Romanova, Z. (2012). Gelatinous macrozooplankton abundance and biomass in Sevastopol Bay and inshore waters off the Crimean Coasts of the Black Sea. Institute of Biology of the Southern Seas NASU., more

All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy Top | Authors | Dataset