Lakes and Watercourses
Lakes and Watercourses
Lakes and Watercourses
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
APPENDIX 2<br />
Table 1b. Indicator genera for determining the Danish fauna index. The index is<br />
given inversely to the original version (Kirkegaard et al., 1992).<br />
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––<br />
No. of diversity groups ≤ –2 –1 – 3 4 – 9 ≥ 10<br />
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––<br />
Group 1 ≥ 2 genera - 5 6 7<br />
1 taxon - 4 5 6<br />
Brachyptera<br />
Capnia<br />
Leuctra<br />
Isogenus<br />
Isoperla<br />
Isoptena<br />
Perlodes<br />
Protonemura<br />
Siphonoperla<br />
Ephemeridae<br />
Limnius<br />
Glossomatidae<br />
Sericomatidae<br />
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––<br />
Group 2 4 4 5 5<br />
Amphinemura<br />
Taeniopteryx<br />
Ametropodidae<br />
Ephemerellidae<br />
Heptageniidae<br />
Leptophlebiidae<br />
Siphlonuridae<br />
Elmis<br />
Elodes<br />
Rhyacophilidae<br />
Goeridae<br />
Ancylus<br />
If ≥ 5 individuals of Asellus go to group 3<br />
If ≥ 5 individuals of Chironomus, go to group 4<br />
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––<br />
Group 3 3 4 4 4<br />
≥ 10 individuals of Gammarus<br />
Caenidae<br />
If ≥ 5 individuals of other Trichoptera than in group 2<br />
Or ≥ 5 individuals of Chironomus, go to group 4<br />
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––<br />
89