L. Forró szerk.: Miscellanea Zoologica Hungarica 10. 1995 (Budapest, 1995)

Kappus, B., Jansen, W. , Fok, P.; Rahmann, H.: Threatened lamprey (Lampetra planeri) populations of the Danube Basin within Baden-Württemberg, Germany

Table 2. Specific hazards endangering brook lamprey (L. planeri) populations within the upper Danube Basin of Baden-Württemberg. 1 = migration barriers (the number of barriers in the vicinity of a known population is given); 2 = diverted river section with minimal flow regulation; 3 = input of organic nutrients; 4 = toxic spill; 5 = water removal; 6 = stocking with brown trout and/or eel; 7 = channelization; 8 = armoring of river banks with stone blocks; 9 = mowing of macrophytes; 10 = prédation by heron (Ardea cinerea); 11 = sediment removal; 12 = trampling by livestock; 13 = water acidification; n = total number of hazards affecting each population 1 River / nearest town Threat n 1 River / nearest town 1 I 2 I 3 I 4 I S I 6 I 7 I 8 I 9 | 10 | 11 | 12 | 13 n A) Danube River and its tributaries within the "Schwäbische Alb" Rot / Schwendi 3 X X X X 5 Rot / Bußmannshausen 2 X X X X X 6 Blau / Arnegg 2 X 2 Blau / Ulm 5 X X 3 Schmiech / Ehingen 5 X X X X X X 7 Schmiech / Allmendingen X X X 3 Donau / Dettingen 2 X 2 Stehbach / Rottenacker 2 X X 3 Große Lauter / Lauterach 5 X X 3 Große Lauter / Anhausen 3 1 Donau / Zell X 1 Donau / Riedlingen 2 X 2 Donau / Hundersingen 1 X 2 Heudorferbach / Blochingen 4 X X X 4 Donau / Scheer 3 X X 3 Laudiert / Laucherthal 4 X X 3 Lauchert / Bingen 5 X X X 4 Laudiert / Hermentingen X 1 Donau / Donaueschingen 2 X X X 4 B) Danube River headwaters Breg / Donaueschingen X X X 3 Breg / Hüfingen 1 X X 3 Brändbach / Unterbränd 2 1 Breg / Brüggen 0 Breg / Wolterdingen 5 1 Breg / Krumpenhof 1 1 Eisenbach / Hammereisenbach 5 X X 3 Urach / Urach 3 1 Linach / Fuchsloch 3 1 Rohrbach / Schonenbach 4 X X X 4 Breg / Furtwangen 3 X X 3 Breg / Gabrielenhof 4 1 Brigach / Donaueschingen X X X 3 Brigach / Klengen X 1 Wolfbach / Rietheim X X X X 4 Warenbach / Villingen 3 X X X X 5 Kirnach / Unterkirnach 6 X 2 Brigach / Villingen 4 X X X X 5 Brigach / Peterzell 1 X X X X 5 Harzlochbach 3 1 Brigach / St. Georgen 4 X X X 4