Journal of Plankton Research Vol.22 no.11 pp.2015-2038, 2000
© Oxford University Press 2000
Long-term dynamics of main mesozooplankton species in the central Baltic Sea
1 Institute of Marine Sciences, Duesternbrooker Weg 20, D-24105 Kiel, Germany and 2 Latvian Fisheries Research Institute, Daugavgrivas Street 8, LA-1007 Riga, Latvia
1 To whom correspondence should be addressed
Long-term dynamics (1959–1997) of the copepod species Pseudocalanus elongatus, Temora longicornis, Acartia spp. and Centropages hamatus, as well as the taxonomic group of cladocerans, are described for the open sea areas of the central Baltic Sea. Differences between areas, i.e. Bornholm Basin, Gdansk Deep and Gotland Basin, as well as between 5 year periods, were investigated by means of Analysis of Variance (ANOVA). No significant differences in mesozooplankton biomass between areas were found. On the other hand, clear time-trends could be demonstrated and related to salinity and temperature, with P.elongatus biomass mainly dependent on salinity and T.longicornis, Acartia spp. and cladocerans biomasses dependent, to a large extent, on thermal conditions. Decreasing salinities since the early 1980s due to a lack of major inflows of highly saline water from the North Sea and increased river run-off, both triggered by meteorological conditions, obviously caused a decrease in biomass of P.elongatus. Contrarily, the standing stocks of the other abundant copepod species and cladocerans followed, to a large degree, the temperature development and showed, in general, an increase. The shift in species composition during this period is considered to be a reason for decreasing growth rates of Baltic herring (Clupea harengus) since the early 1980s, and for sprat (Sprattus sprattus) since the early 1990s. Generally, it is suggested that low mesozooplankton biomasses in the 1990s were caused, at least partially, by amplified predation by clupeid fish stocks.
CiteULike 
Connotea 
Del.icio.us What's this?
This article has been cited by other articles:
|
|
 |
|
  M. Casini, J. Lovgren, J. Hjelm, M. Cardinale, J.-C. Molinero, and G. Kornilovs Multi-level trophic cascades in a heavily exploited open marine ecosystem Proc R Soc B, August 7, 2008; 275(1644): 1793 - 1801. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 C. Mollmann, B. Muller-Karulis, G. Kornilovs, and M. A. St John Effects of climate and overfishing on zooplankton dynamics and ecosystem structure: regime shifts, trophic cascade, and feedback loops in a simple ecosystem ICES J. Mar. Sci., April 1, 2008; 65(3): 302 - 310. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
G. Wiafe, H. B. Yaqub, M. A. Mensah, and C. L. J. Frid Impact of climate change on long-term zooplankton biomass in the upwelling region of the Gulf of Guinea ICES J. Mar. Sci., April 1, 2008; 65(3): 318 - 324. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
R. Voss, J. O. Schmidt, and D. Schnack Vertical distribution of Baltic sprat larvae: changes in patterns of diel migration? ICES J. Mar. Sci., July 1, 2007; 64(5): 956 - 962. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 F. C. Hansen, C. Mollmann, U. Schutz, and T. Neumann Spatio-temporal distribution and production of calanoid copepods in the central Baltic Sea J. Plankton Res., January 1, 2006; 28(1): 39 - 54. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
H-H. Hinrichsen, J.O. Schmidt, C. Petereit, and C. Mollmann Survival probability of Baltic larval cod in relation to spatial overlap patterns with their prey obtained from drift model studies ICES J. Mar. Sci., January 1, 2005; 62(5): 878 - 885. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. Alheit, C. Mollmann, J. Dutz, G. Kornilovs, P. Loewe, V. Mohrholz, and N. Wasmund Synchronous ecological regime shifts in the central Baltic and the North Sea in the late 1980s ICES J. Mar. Sci., January 1, 2005; 62(7): 1205 - 1215. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
C. Mollmann, G. Kornilovs, M. Fetter, and F. W. Koster Climate, zooplankton, and pelagic fish growth in the central Baltic Sea ICES J. Mar. Sci., January 1, 2005; 62(7): 1270 - 1280. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
F. W. Koster, C. Mollmann, H.-H. Hinrichsen, K. Wieland, J. Tomkiewicz, G. Kraus, R. Voss, A. Makarchouk, B. R. MacKenzie, M. A. St. John, et al. Baltic cod recruitment - the impact of climate variability on key processes ICES J. Mar. Sci., January 1, 2005; 62(7): 1408 - 1425. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
L. Dzierzbicka-Glowacka Growth and development of copepodite stages of Pseudocalanus spp. J. Plankton Res., January 1, 2004; 26(1): 49 - 60. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
H. Peltonen, M. Vinni, A. Lappalainen, and J. Ponni Spatial feeding patterns of herring (Clupea harengus L.), sprat (Sprattus sprattus L.), and the three-spined stickleback (Gasterosteus aculeatus L.) in the Gulf of Finland, Baltic Sea ICES J. Mar. Sci., January 1, 2004; 61(6): 966 - 971. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
M. Casini, M. Cardinale, and F. Arrhenius Feeding preferences of herring (Clupea harengus) and sprat (Sprattus sprattus) in the southern Baltic Sea ICES J. Mar. Sci., January 1, 2004; 61(8): 1267 - 1277. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
C. J Harvey, S. P Cox, T. E Essington, S. Hansson, and J. F Kitchell An ecosystem model of food web and fisheries interactions in the Baltic Sea ICES J. Mar. Sci., January 1, 2003; 60(5): 939 - 950. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
C. Mollmann and F. W. Koster Population dynamics of calanoid copepods and the implications of their predation by clupeid fish in the Central Baltic Sea J. Plankton Res., October 1, 2002; 24(10): 959 - 978. [Abstract] [Full Text] [PDF]
|
|