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Wave exposure Poland habitat mapping Oslo Workshop 2007-05-29 Martin Isæus 08-16 10 11

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Presentation on theme: "Wave exposure Poland habitat mapping Oslo Workshop 2007-05-29 Martin Isæus 08-16 10 11"— Presentation transcript:

1 Wave exposure Poland habitat mapping Oslo Workshop Martin Isæus

2 Effekter på biotan Direct effects Pressure and drag forces Water movements, whip-lash etc Indirect effects Sorting of sediments, erosion Correlations with secchi-depth and salinity

3 Example from Askö

4 SweExp NorExp FinExp BaltExp? ThaiExp?

5 SweExp Bohuslän Preliminär klassning

6 Detalj Väderöarna

7

8 Sites for Biological exposure index

9 BioEx R2 = 39.6 STWAVE R2 = 36.2 SWM R2 = 55.2 FWM R2 = 48.9

10 High energy Moderate energy Low energy Sheltered Very sheltered Extremely sheltered Ultra sheltered Exposed Extremely exposed Moderately exposed Very exposed

11 Used for preliminary exposure classes

12 List of A1 species

13 Field stations Opstad 1981 Lein et al 1998 Klavestad 1954 Iversen 1981 A1 n = 233 A3 n = 126

14 Examples on species distributions in relation to wave exposure


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