Eucyclops agilis

are parasitized by

• Global Biotic Interactions: Gnathostoma binucleatum
• Global Biotic Interactions: Ophiotaenia gracilis Jones, Cheng & Gillespie 1958
• Global Biotic Interactions: Corallobothrium parafimbriatum
• Global Biotic Interactions: Schyzocotyle acheilognathi (Yamaguti 1934) Brabec, Waeschenbach, Scholz & Lit (Asian fish tapeworm)
• Global Biotic Interactions: Proteocephalus longicollis (Zeder 1800)

are preyed upon by

• Global Biotic Interactions: Rhincalanus nasutus Giesbrecht 1888
• Global Biotic Interactions: Scomber japonicus Houttuyn 1782 (Pacific Chub Mackerel)
• Global Biotic Interactions: Clione limacina (Phipps 1774) (Sea Angel)
• Global Biotic Interactions: Etheostoma olmstedi Storer 1842 (Tessellated Darter)
• Global Biotic Interactions: Membras martinica (Valenciennes 1835) (Rough Silverside)

eat

• Global Biotic Interactions: Parvodinium umbonatum
• Global Biotic Interactions: Spiniferodinium palustre
• Global Biotic Interactions: Peridinium wisconsinense
• Global Biotic Interactions: Peridinium limbatum
• Global Biotic Interactions: Peridinium cinctum

have endoparasite

• Global Biotic Interactions: Gnathostoma binucleatum
• Global Biotic Interactions: Ophiotaenia gracilis Jones, Cheng & Gillespie 1958
• Global Biotic Interactions: Corallobothrium parafimbriatum
• Global Biotic Interactions: Schyzocotyle acheilognathi (Yamaguti 1934) Brabec, Waeschenbach, Scholz & Lit (Asian fish tapeworm)
• Global Biotic Interactions: Proteocephalus longicollis (Zeder 1800)

prey on

• Global Biotic Interactions: Canuella canadensis Willey 1923
• Global Biotic Interactions: Mesocyclops edax (Forbes 1891)
• Global Biotic Interactions: Farranula gracilis (Dana 1849)
• Global Biotic Interactions: Lecane lunaris (Ehrenberg 1832)
• Global Biotic Interactions: Alteutha depressa (Baird 1837)