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International Journal on Algae

Published 4 issues per year

ISSN Print: 1521-9429

ISSN Online: 1940-4328

SJR: 0.168 SNIP: 0.377 CiteScore™:: 0.6 H-Index: 11

Indexed in

The Growth of New Species in the Black Sea: Chaetoceros throndsenii (Marino, Montresor & Zingone) Marino, Montresor & Zingone in Natural and Experimental Conditions

Volume 13, Issue 3, 2011, pp. 277-288
DOI: 10.1615/InterJAlgae.v13.i3.60
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ABSTRACT

In May−June 2005 in the northeastern Black Sea, on its shelf, slope, and in the open sea, intensive (up to 1.92×105 cells/L) growth of alien species, Chaetoceros throndsenii, in the Black Sea was observed. At the same time, a mass development of coccolithophore Emiliania huxleyi (Lohmann) Hay et Mohler took place, cell numbers of which reached the level of blooms. The experimental studies of natural phytoplankton community have shown that the synchronous nitrogen and phosphorus supply promoted intensive growth of Ch. throndsenii. A complete removal of this species’ cells in the continuous (chemostat) culture took place when a dilution rate was 0.25 day−1. When the dilution rate was 0.15 day−1 short-term (7 days) coexistence of Ch. throndsenii and Pseudonitzschia pseudodelicatissima (Hasle) Hasle was observed. The maximal growth rate of new species in continuous culture was recorded during the first three days at was 1.4 day−1. A maximal cell degradation of Ch. throndsenii (0.5 day−1) was recorded in the last phase of the bath culture with the synchronous nitrogen and phosphorus supply. A low rate of water exchange in the surface mixed layer (< 0.15 day−1), stable stratification and relatively small nitrogen and phosphorus concentrations are necessary for appearance and long existence of this alien species in the Black Sea.

CITED BY
  1. Pautova L.A., New for Black Sea specie Chaetoceros minimus (Basillariophyta): natural observations and experimental researches, Algologia, 23, 2, 2013. Crossref

  2. Silkin V. A., Abakumov A. I., Pautova L. A., Pakhomova S. V., Lifanchuk A. V., Mechanisms of regulation of invasive processes in phytoplankton on the example of the north-eastern part of the Black Sea, Aquatic Ecology, 50, 2, 2016. Crossref

  3. Kubryakova E.A., Kubryakov A.A., Mikaelyan A.S., Winter coccolithophore blooms in the Black Sea: Interannual variability and driving factors, Journal of Marine Systems, 213, 2021. Crossref

  4. Lifanchuk Anna V., Fedorov Aleksey V., Change of ecological strategies in the phytoplankton community of the north-eastern part of the Black Sea during the annual cycle, Hydrosphere Еcology (Экология гидросферы), 1(2), 2018. Crossref

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