Table 1

Water temperature and abundances of major prey items of the Caucasian dwarf goby in the zooplankton and benthos samples at the sampling site in 2015–2016.

Month Water temperature, °C Abundance

    Copepods in zooplankton, ind.⋅103⋅m−3 Cladocerans zooplankton, ind.⋅103⋅m−3 All chironomids in the benthos, ind.⋅m−2 Small-sized chironomids in the benthos,
ind.⋅m−2
Jan 1.3 0.0 0.0 n/a n/a
Feb 3.4 0.0 0.1 1296 64
Mar 3.8 1.5 4.3 528 48
Apr 11.8 0.2 0.8 1072 96
May 20.0 12.5 80.5 880 704
Jun 23.2 1.2 35.8 368 64
Jul 23.7 5.2 20.0 512 208
Aug 26.0 18.5 19.6 464 288
Sep 20.3 1.7 14.8 704 544
Oct 12.3 1.0 3.5 1760 432
Nov 6.9 0.5 1.7 912 80
Dec 4.1 0.3 0.9 1088 288

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