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. 2022 Feb 19;12(2):e8554. doi: 10.1002/ece3.8554

TABLE A5.7.

Estimates of density and abundance of harbour porpoises in the main survey area during November–April at the level of country within region

Country Region Area (km2) Density (animals/1000 km2) Abundance CV (%)
Estimate 95% CI Estimate 95% CI
Denmark Bornholm Northeast 848 2.40 2
Estonia Northeast 24,588 0 0–0 0 0–0
Finland Northeast 23,005 0.55 0.08–2.38 13 2–55 112.7
Latvia Northeast 18,735 0.49 0.01–1.96 9 0–37 114.7
Lithuania Northeast 5719 1.46 0.04–3.98 8 0–23 79.5
Poland Northeast 14,849 1.53 0.57–3.14 23 9–47 43.5
Sweden Northeast 44,860 4.19 1.15–10.01 188 52–449 62.8
Denmark excl. Bornholm Southwest 3797 2,126.32 823.98–4998.17 8,073 3128–18,976 51.0
Denmark Bornholm Southwest 7932 10.08 1.00–28.96 80 8–230 76.1
Germany Southwest 8412 261.85 89.66–617.08 2,203 754–5191 51.2
Poland Southwest 7092 2.31 0.44–6.69 16 3–47 73.7
Sweden Southwest 6750 54.56 21.11–127.88 368 143–863 49.7

CI = confidence interval; CV = coefficient of variation. Region: northeast = within the May–October management range of the Baltic Proper porpoise population as defined by Carlén et al. (2018); southwest = from the Darss and Limhamn/Drogden sills in the west to the May–October management border of the Baltic Proper porpoise population as defined by Carlén et al. (2018) in the east.