The impact of signal crayfish (Pacifastacus leniusculus) on the recruitment of salmonid fish in a headwater stream in Yorkshire, England

Agrikultur & biologi

• aquatic plants 10%
• crayfish 63%
• England 68%
• fish 38%
• highlands 8%
• invertebrates 8%
• limestone 10%
• Pacifastacus leniusculus 100%
• rivers 7%
• Salmo salar 20%
• Salmo trutta 33%
• Salmonidae 72%
• species recruitment 60%
• sport fishing 25%
• traps 16%
• trout 9%

Mark- och miljövetenskap

• angling 7%
• aquatic plant 6%
• crayfish 85%
• fish 40%
• headwater 69%
• salmonid 78%
• tributary 5%