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Table 2

The number of spraints of Eurasian otter Lutra lutra collected on Chotýšanka stream (Chotýšanka 1, fishery no. 413 006) in winter 2005/2006: date, date of spraint collection; spraints, number of spraints collected; n, number of food items identified in spraints; b, estimated biomass of all food items identified in spraints [kg], Sec1, Section 1 (km 7.5–11.7); Sec2, Section 2 (km 3.0–5.5) (Fig. 1).

Date Spraints n b



  Sec1 Sec2 Sec1 Sec2 Sec1 Sec2
11 Dec 2005 92 61 547 319 6.12 4.13
14 Jan 2006 82 44 430 299 5.20 3.25
Total 174 105 977 618 11.32 7.38

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