The document provides details from a field study of biotopes along the Hoeng Boestrup River in 2007, including measurements of water quality, light intensity, and observations of local plants and animals. Key species observed include the mute swan, wood pigeon, mallard duck, mayfly, crayfish, various snails and worms. Water quality measurements included pH, sodium, and phosphate levels. Plant life noted included reeds, water thyme, dead-nettle, and forget-me-nots.

1. Instruction in biotopes in Hoeng

2. Boestrup River 2007

4. cathing wild animals

5. the regnini continued

6. home again... defining species

8. Wade-boys

9. Kårfaktorer PH asset to the earth nearby the breadth was 8, closer towards land it was 9. PH down to the water was inferior , it was 6. Sodium was 8 mg/ l and phosphate was 10mg/l Water temperature was 12 degrees and air temperature was 12 degrees Light intensity proves evident very likely weak why longish down decent upcoming. Here's the first and last second 0,0000 262,44 40,0000 127,55 0,2000 262,44 40,2000 129,60 0,4000 262,44 40,4000 130,55 0,6000 262,44 40,6000 131,96

10. Earth tests

11. Birds at the stream

23. crayfish & spinners

30. Plants

31. Plantes