Table 1
Description of water bodies and sampling periods. Both surface and near-bottom zones were sampled in lakes on each occasion. Water bodies are arranged according to mean annual ciliate biomass.
| Water body | Trophic status | Coordinates | Area (ha) | Maximum depth (m) | References – characteristics of water bodies | Sampling period (number of sampling occasions) |
|---|---|---|---|---|---|---|
| Lake Marszewo | mesotrophic | 54º30.5’N 16º42.6’E | 18 | 20 | Jarosiewicz (2009) | Sept. 2007 – July 2008 (7) |
| Lake Mały Borek | mesotrophic | 54º05.3’N 17º25.6’E | 7.6 | 11 | Witek & Jarosiewicz (2010) | Nov. 2010 – Dec. 2011 (12) |
| Lake Dobra | meso-eutrophic | 54º23.4’N 17º20.3’E | 28.5 | 12 | Jarosiewicz & Hetmański (2009) | Sept. 2007 – July 2008 (7) |
| Baltic Sea in Ustka | coastal brackish waters | 54º35.2’N 16º50.0’E | - | 6–6.5 | Rychert et al. (2013) | April 2006 – April 2008 (30) |
| Baltic Sea in Sopot | coastal brackish waters | 54º26.9’N 18º34.7’E | - | 6–6.5 | Rychert et al. (2013) | April 2003 – March 2004 (12) |
| Lake Kociołek | eutrophic | 53º45.6’N 19º31.8’E | 0.4 | 6 | Czychewicz & Rychert, unpublished | May 2009 – June 2010 (11) |

Figure 1
Data for the sampling site in the coastal waters in Sopot as an example of calculations performed for each water body. (A) Mean annual ciliate biomass – weighted mean calculated from seasonal changes in ciliate biomass. (B) Cumulative annual ciliate production – an integral calculated from seasonal changes in ciliate production rates.

Figure 2
Values of mean annual ciliate biomass in surface and near-bottom waters of four lakes and at two stations located in the coastal zone of the southern Baltic Sea. All sampling sites were located in the temperate zone.

Figure 3
Annual production to biomass (P/B) ratios calculated for ciliate communities in surface and near-bottom waters of four lakes and at two stations located in the coastal zone of the southern Baltic Sea. Mean values and standard deviations are noted at the top of the graph.
Table 2
Annual production to biomass (P/B) ratios for ciliates in different water bodies. When necessary, P/B ratios (yr-1) were computed after the analysis of graphs published in the cited papers.
| Water body | Layer | Annual P/B ratio (yr-1) | Reference |
|---|---|---|---|
| Temperate zone | |||
| Meso-eutrophic Lake Constance | Epipelagic water | 77-84 | Müller (1989) |
| Lakes of different trophic status | Periodically anoxic near-bottom waters | 78 | This study |
| Oligo-mesotrophic Lake Michigan | Surface water | 117 | Carrick et al. (1992) |
| Gulf of Gdańsk | Epipelagic water | 120-193 | Witek (1998) |
| Gulf of Maine | Entire water column | 135 | Montagnes et al. (1988) |
| Gulf of Gdańsk | Oxygenated near-bottom water | 139-153 | Witek (1998) |
| Open northern Baltic Sea proper | Epipelagic water | 141 | Johansson et al. (2004) |
| Southampton water | Surface water | 164-183 | Leakey et al. (1992) |
| River Rhine | Main flow | 238** | Weitere et al. (2005) |
| Bahía Blanca Estuary | Surface water | 250 | Pettigrosso & Popovich (2009) |
| Słupia River | Main flow | 252 | Rychert (2009) |
| Southern Kattegat | Entire water column | ~256 | Nielsen & Kiørboe (1994) |
| Lakes of different trophic status and coastal waters | Surface water | 308 | This study |
| Lake Gardno | Surface water | 325-332 | Rychert et al. (2012) |
| Oligo-mesotrophic Lake Ontario | Epilimnetic water | ~475 | Taylor & Johannsson (1991) |
| Tropical zone | |||
| Waters off Kingston, Jamaica | Entire water column | 621**** | Lynn et al. (1991) |
** P/B ratio without assumption made by authors (Weitere et al. 2005) that ciliate growth was limited in summer, fall, and winter.

Figure 4
Distribution of annual ciliate production among the seasons of the year. Calculations were performed separately for surface and near-bottom waters of four lakes and at two stations located in the coastal zone of the southern Baltic Sea. All sampling sites were located in the temperate zone.
Mesotrophic Lake Marszewo
| Date | Surface water | Near-bottom water (20 m) | ||||||
|---|---|---|---|---|---|---|---|---|
| Temp. | Ciliate abundance | Ciliate biomass | Ciliate production | Temp. | Ciliate abundance | Ciliate biomass | Ciliate production | |
| [°C] | [cells ml-1] | [µgC l-1] | [µgC l-1 d-1] | [°C] | [cells ml-1] | [µgC l-1] | [µgC l-1d-1] | |
| 17-Sep-2007 | 14.3 | 4.00 | 6.42 | 6.07 | 7.5 | 0.60 | 0.14 | 0.09 |
| 23-Oct-2007 | 9.7 | 1.14 | 1.04 | 0.61 | 7.4 | 2.20 | 2.02 | 0.79 |
| 20-Nov-2007 | 5.2 | 1.71 | 2.35 | 0.45 | 5.3 | 5.07 | 5.30 | 1.21 |
| 13-Feb-2008 | 2.9 | 3.20 | 1.15 | 0.14 | 3.0 | 3.12 | 1.34 | 0.17 |
| 13-May-2008 | 16.6 | 5.44 | 6.65 | 8.18 | 5.2 | 3.12 | 2.04 | 0.50 |
| 17-Jun-2008 | 17.5 | 2.80 | 4.63 | 5.93 | 5.5 | 12.00 | 12.55 | 2.96 |
| 23-Jul-2008 | 19.6 | 3.80 | 0.95 | 2.23 | 5.5 | 1.20 | 0.55 | 0.04 |
anaerobic ciliates – low production
Mesotrophic Lake Mały Borek
| Date | Surface water | Near-bottom water (11 m) | ||||||
|---|---|---|---|---|---|---|---|---|
| Temp. | Ciliate abundance | Ciliate biomass | Ciliate production | Temp. | Ciliate abundance | Ciliate biomass | Ciliate production | |
| [°C] | [cells ml-1] | [µgC l-1] | [µgC l-1 d-1] | [°C] | [cells ml-1] | [µgC l-1] | [µgC l-1d-1] | |
| 7-Nov-2010 | 7.3 | 5.12 | 8.17 | 2.73 | 7.2 | 3.84 | 3.52 | 1.30 |
| 21-Feb-2011 | 0.3 | 0.83 | 0.59 | 0.00 | 4.4 | 0.66 | 0.32 | 0.07 |
| 4-Apr-2011 | 6.4 | 12.00 | 15.93 | 4.24 | 4.6 | 11.60 | 3.49 | 1.02 |
| 18-Apr-2011 | 9.9 | 9.12 | 17.26 | 9.35 | 4.9 | 0.21 | 0.42 | 0.08 |
| 9-May-2011 | 15.4 | 2.48 | 4.27 | 4.80 | 5.3 | 0.19 | 0.55 | 0.11 |
| 6-Jun-2011 | 22.2 | 3.44 | 2.21 | 5.51 | 5.8 | 0.13 | 0.57 | 0.11 |
| 5-Jul-2011 | 20.7 | 1.20 | 0.93 | 1.93 | 6.2 | 3.60 | 6.65 | 0.37 |
| 8-Aug-2011 | 21.8 | 0.72 | 0.56 | 1.21 | 6.5 | 2.32 | 27.59 | 1.18 |
| 5-Sep-2011 | 18.8 | 2.00 | 1.34 | 2.58 | 6.8 | 0.70 | 0.68 | 0.26 |
| 10-Oct-2011 | 14.2 | 2.70 | 1.67 | 2.13 | 7.2 | 1.90 | 1.60 | 0.70 |
| 7-Nov-2011 | 8.7 | 1.28 | 1.07 | 0.58 | 7.8 | 1.70 | 1.22 | 0.57 |
| 3-Dec-2011 | 4.6 | 0.60 | 0.83 | 0.15 | 4.7 | 0.30 | 0.46 | 0.08 |
anaerobic ciliates – low production
Meso-eutrophic Lake Dobra
| Date | Surface water | Near-bottom water (12 m) | ||||||
|---|---|---|---|---|---|---|---|---|
| Temp. | Ciliate abundance | Ciliate biomass | Ciliate production | Temp. | Ciliate abundance | Ciliate biomass | Ciliate production | |
| [°C] | [cells ml-1] | [µgC l-1] | [µgC l-1 d-1] | [°C] | [cells ml-1] | [µgC l-1] | [µgC l-1d-1] | |
| 17-Sep-2007 | 14.5 | 57.49 | 20.30 | 27.99 | 10.1 | 40.00 | 30.25 | 18.35 |
| 23-Oct-2007 | 9.3 | 7.49 | 4.78 | 3.10 | 9.4 | 12.60 | 17.45 | 8.07 |
| 20-Nov-2007 | 4.2 | 3.20 | 6.36 | 0.85 | 4.2 | 2.40 | 66.98 | 0.80 |
| 13-Feb-2008 | 2.2 | 4.08 | 2.33 | 0.16 | 2.9 | - | - | - |
| 13-May-2008 | 16.8 | 7.60 | 4.54 | 7.69 | 7.7 | 5.00 | 3.29 | 1.48 |
| 17-Jun-2008 | 17.4 | 37.00 | 13.46 | 24.28 | 8.1 | 4.20 | 2.23 | 0.31 |
| 23-Jul-2008 | 19.5 | 8.63 | 3.32 | 7.66 | 8.5 | 0.08 | 0.27 | 0.03 |
anaerobic ciliates – low production
Baltic Sea in Ustka
| Date | Surface water | |||
|---|---|---|---|---|
| Temp. | Ciliate abundance | Ciliate biomass | Ciliate production | |
| [°C] | [cells ml-1] | [µgC l-1] | [µgC l-1 d-1] | |
| 9-Apr-2006 | 5.0 | 60.35 | 199.48 | 29.77 |
| 7-May-2006 | 8.0 | 16.30 | 49.41 | 14.89 |
| 11-Jun-2006 | 17.0 | 43.60 | 36.24 | 50.69 |
| 19-Jun-2006 | 14.0 | 13.36 | 15.44 | 14.22 |
| 5-Jul-2006 | 10.8 | 6.01 | 6.78 | 4.42 |
| 2-Aug-2006 | 20.6 | 6.30 | 23.76 | 29.86 |
| 18-Aug-2006 | 19.0 | 12.05 | 33.26 | 39.26 |
| 3-Oct-2006 | 16.9 | 1.40 | 2.07 | 2.61 |
| 24-Oct-2006 | 5.0 | 18.01 | 6.40 | 1.88 |
| 24-Nov-2006 | 6.6 | 10.05 | 8.87 | 2.98 |
| 26-Dec-2006 | 3.0 | 2.88 | 4.47 | 0.42 |
| 25-Jan-2007 | 2.0 | 0.48 | 0.24 | 0.02 |
| 26-Feb-2007 | 4.0 | 4.00 | 5.33 | 0.78 |
| 13-Mar-2007 | 6.9 | 23.69 | 35.03 | 9.76 |
| 29-Mar-2007 | 8.7 | 15.91 | 19.45 | 9.62 |
| 14-Apr-2007 | 10.0 | 16.73 | 15.76 | 10.28 |
| 30-Apr-2007 | 9.4 | 15.11 | 30.63 | 12.06 |
| 20-May-2007 | 15.0 | 6.24 | 17.28 | 15.36 |
| 1-Jun-2007 | 15.9 | 30.81 | 57.06 | 62.93 |
| 8-Jun-2007 | 13.6 | 10.13 | 16.19 | 13.53 |
| 14-Jul-2007 | 20.6 | 46.45 | 71.87 | 113.98 |
| 28-Jul-2007 | 20.5 | 8.23 | 3.69 | 8.53 |
| 12-Aug-2007 | 19.0 | 5.60 | 2.83 | 5.70 |
| 28-Aug-2007 | 17.7 | 56.67 | 12.77 | 28.44 |
| 30-Sep-2007 | 15.0 | 5.40 | 5.31 | 6.63 |
| 13-Oct-2007 | 11.8 | 9.11 | 5.85 | 5.91 |
| 14-Dec-2007 | 5.4 | 3.51 | 12.05 | 2.29 |
| 18-Jan-2008 | 3.2 | 2.60 | 2.59 | 0.31 |
| 3-Mar-2008 | 5.2 | 2.57 | 1.00 | 0.31 |
| 14-Apr-2008 | 6.4 | 4.12 | 2.15 | 0.86 |
Baltic Sea in Sopot
| Date | Surface water | |||
|---|---|---|---|---|
| Temp. | Ciliate abundance | Ciliate biomass | Ciliate production | |
| [°C] | [cells ml-1] | [µgC l-1] | [µgC l-1 d-1] | |
| 3-Apr-2003 | 3.9 | 9.00 | 22.79 | 2.42 |
| 8-May-2003 | 8.2 | 24.60 | 91.35 | 28.21 |
| 29-May-2003 | 13.7 | 149.60 | 78.53 | 81.38 |
| 26-Jun-2003 | 14.5 | 28.20 | 16.58 | 20.43 |
| 12-Aug-2003 | 21.3 | 14.30 | 5.69 | 14.17 |
| 8-Sep-2003 | 17.3 | 9.48 | 19.31 | 22.38 |
| 9-Oct-2003 | 13.2 | 13.44 | 12.06 | 11.35 |
| 14-Nov-2003 | 7.3 | 3.08 | 4.03 | 1.48 |
| 10-Dec-2003 | 5.5 | 3.66 | 1.63 | 0.55 |
| 12-Jan-2004 | 1.6 | 2.55 | 3.73 | 0.13 |
| 10-Feb-2004 | 2.6 | 2.94 | 3.74 | 0.29 |
| 11-Mar-2004 | 1.4 | 11.00 | 16.61 | 0.46 |
Eutrophic Lake Kociołek
| Date | Surface water | Near-bottom water (6 m) | ||||||
|---|---|---|---|---|---|---|---|---|
| Temp. | Ciliate abundance | Ciliate biomass | Ciliate production | Temp. | Ciliate abundance | Ciliate biomass | Ciliate production | |
| [°C] | [cells ml-1] | [µgC l-1] | [µgC l-1 d-1] | [°C] | [cells ml-1] | [µgC l-1] | [µgC l-1d-1] | |
| 16-May-2009 | 17.0 | 24.80 | 4.45 | 11.07 | 9.0 | 5.80 | 2.70 | 1.96 |
| 30-May-2009 | 18.0 | 139.20 | 99.88 | 184.64 | 13.0 | 103.20 | 59.67 | 69.20 |
| 14-Jun-2009 | 18.0 | 5.87 | 0.96 | 2.72 | 11.0 | 9.31 | 7.16 | 5.44 |
| 27-Jun-2009 | 22.0 | 11.00 | 2.25 | 7.52 | 13.0 | 3.60 | 4.85 | 0.90 |
| 12-Aug-2009 | 24.0 | 8.20 | 1.58 | 6.52 | 14.0 | 30.60 | 22.60 | 6.61 |
| 13-Sep-2009 | 17.0 | 38.40 | 8.30 | 18.94 | 12.0 | 4.40 | 6.61 | 4.15 |
| 11-Nov-2009 | 10.0 | 55.20 | 82.49 | 26.87 | 9.0 | 72.00 | 105.22 | 28.31 |
| 23-Feb-2010 | 3.0 | 24.00 | 10.15 | 1.40 | 4.0 | 5.40 | 3.21 | 0.60 |
| 18-Mar-2010 | 5.0 | 11.20 | 3.64 | 1.20 | 8.0 | 16.20 | 20.46 | 1.96 |
| 30-Apr-2010 | 19.0 | 31.80 | 4.26 | 13.65 | 15.0 | 26.00 | 3.98 | 8.40 |
| 4-Jun-2010 | 18.0 | 0.53 | 0.07 | 0.20 | 12.0 | 0.90 | 0.39 | 0.38 |
anaerobic ciliates – low production