Hydropsyche (Hydropsyche) instabilis (Curtis 1834)

are eaten by

• Global Biotic Interactions: Nyctalus leisleri (Kuhl 1817) (leislers bat, lesser noctule)
• Global Biotic Interactions: Esox lucius Linnaeus 1758 (Northern pike)
• Global Biotic Interactions: Esox lucius Linnaeus 1758 (Northern pike)
• Global Biotic Interactions: Rutilus rutilus (Linnaeus 1758) (Roach)
• Global Biotic Interactions: Rutilus rutilus (Linnaeus 1758) (Roach)

are preyed upon by

• Global Biotic Interactions: Thymallus thymallus (Linnaeus 1758) (Grayling)
• Global Biotic Interactions: Rutilus rutilus (Linnaeus 1758) (Roach)
• Global Biotic Interactions: Leuciscus leuciscus (Linnaeus 1758) (Common dace)
• Global Biotic Interactions: Esox lucius Linnaeus 1758 (Northern pike)
• Global Biotic Interactions: Platichthys flesus (Linnaeus 1758) (Baltic Flounder)

eat

• Global Biotic Interactions: Planothidium lanceolatum
• Global Biotic Interactions: Pinnularia abaujensis (Pantocsek) R. Ross 1947
• Global Biotic Interactions: Frustulia saxonica
• Global Biotic Interactions: Achnanthes conspicua
• Global Biotic Interactions: Pinnularia appendiculata

prey on

• Global Biotic Interactions: Nigrobaetis niger (Linnaeus 1761)
• Global Biotic Interactions: Limnius volckmari (Panzer 1793)
• Global Biotic Interactions: Sericostoma personatum (Kirby & Spence 1826)
• Global Biotic Interactions: Gammarus pulex (Linnaeus 1758) (Freshwater shrimp)
• Global Biotic Interactions: Baetis rhodani (Pictet 1843)