The size structure of the Mesodinium rubrum population in the Gdańsk Basin

• Autorzy: Rychert K.
• Języki publikacji: EN

Abstrakty

EN

The ciliate Mesodinium rubrum Lohmann 1908 (=Myrionecta rubra Jankowski 1976) is an important phototrophic organism in the Gdańsk Basin. In June 2002 the vertical distribution and size structure of the M. rubrum population were studied. Its presence was generally observed in the whole water column (one exception was the anoxic near-bottom zone in the Gdańsk Deep) at all stations studied. Maximum abundance (18300 cells dm-3) was recorded at 26 m depth at the station located in the inner Gulf of Gdańsk. Analysis of the size structure of the counted organisms demonstrated the co-existence of small and large cells of M. rubrum in the upper layer of the water column and a gradual increase with depth of the prevalence of large specimens. This shows that at least two forms of M. rubrum exist in the region studied. Deep migrations are probably undertaken only by relatively large organisms.

Słowa kluczowe

EN

Mesodinium rubrum; size distribution

• Wydawca: Polish Academy of Sciences, Institute of Oceanology ; Elsevier
• Czasopismo: Oceanologia
• Rocznik: 2004
• Tom: No. 46 (3)
• Strony: 439--444
• Opis fizyczny: Bibliogr. 12 poz., mapa, tab., wykr.

Twórcy

autor

Rychert K.

• Sea Fisheries Institute, Kołłątaja 1, PL-81-332 Gdynia, Poland,

Bibliografia

• [1] Crawford D. W., 1989, Mesodinium rubrum: the phytoplankter that wasn’t, Mar. Ecol. Prog. Ser., 58, 161-174.
• [2] Edler L., 1979, Recommendation on methods of marine biological studies in the Baltic Sea. Phytoplankton and chlorophyll, Balt. Mar. Biol. Publ. No 5 (Univ. Lund).
• [3] Grasshoff K. M., Ehrhardt K. Kremling (eds.), 1983, Methods of seawater analysis, Verl. Chem., Weinheim, 419 pp.
• [4] Gustafson D. E. Jr, D. K. Stoecker, M. D. Johnson, W. F. Van Heukelem, K. Sneider, 2000, Cryptophyte algae are robbed of their organelles by the marine ciliate Mesodinium rubrum, Nature, 405, 1049-1052.
• [5] Lindholm T., 1985, Mesodinium rubrum –a unique photosynthetic ciliate, Adv. Aquat. Microbiol., 3, 1-48.
• [6] McAlice B. J., 1968, An occurrence of ciliate red water in the Gulf of Maine, J. Fish. Res. Bd. Can., 25 (8), 1749-1751.
• [7] Olli K., 1999, Diel vertical migration of phytoplankton and heterotrophic flagellates in the Gulf of Riga, J. Marine Syst., 23 (1), 145-163.
• [8] Olli K., Seppälä J., 2001, Vertical niche separation of phytoplankton: large-scale mesocosm experiments, Mar. Ecol. Prog. Ser., 217, 219-233.
• [9] Passow U., 1991, Vertical migration of Gonyaulax catenata and Mesodinium rubrum, Mar. Biol., 110, 455-463.
• [10] Utermöhl H., 1931, Neue Wege in der quantitativen Erfassung des Planktons, Verh. Int. Verein. Theor. Angew. Limnol., 5, 567-596.
• [11] Wistbacka R. J., 1982, Mesodinium rubrum fysiologi –en introduktion, M.Sc. thesis, Abo Akad., Abo.
• [12] Witek M., 1998, Annual changes of abundance and biomass of planktonic ciliates in the Gdańsk Basin, southern Baltic, Int. Rev. Hydrobiol., 83 (2), 163-182.