Small bluegill sunfish, Lepomis macrochirus, foraging among patches in the laboratory did not search systematically within a patch; their intercapture intervals did not differ from a model of random prey encounter within a patch. Patch-residence time, number of prey eaten, and giving-up time (time between last prey capture and leaving the patch) were measured for bluegills foraging in two diffe...

After 126 or 14.8 days of expoaura to H S concentrutionti rnnyiny from .OM4 to ,0140 r n ~ / I , young-of-the-yenr bluegills wcrc tcstcd for swimming endr~rancc and reeistancc to copper or malathion. Swimming tcsts nt low apecd~ indicated increaaed endurnnce for fieh exposed to .0004 mg/l H 3 , but fish expoaed to highcr concentration8 had prngrrssively less cndurmcn than the co11trols. In tho ...

Lymphocystis virus obtained from bluegills (Lepomis macrochirus) was cultured in the permanent bluegill cell line BF-2 and examined by electron microscopy in ultrathin sections of cell cultures and in negative-contrast preparations from cells and from centrifuged culture medium. According to negative-contrast preparations, the icosahedral virions have an overall diameter close to but not exceed...

Research on Bluegills, Lepomis macrochirus R., is abundant but typically focuses water bodies with similar environmental conditions. We assessed Bluegill density, relative abundance (catch per unit effort [CPUE] by electrofishing), growth, and size structure in 60 lakes wide-ranging surface areas (2–12,412 ha), trophic states (oligotrophic–hypereutrophic), macrophyte abundances (0.3–100 percent...

–The growth of young-of-the-year bluegills Lepomis macrochirus was measured in six experimental ponds and simulated with an individual-based model. In the ponds the young bluegills grew at a rate of about 0.6 mm/d for 3-4 weeks. An abrupt reduction in growth rate to about 0.2 mm/d occurred when total zooplankton density (exclusive of rotifers) decreased below about 50 organisms/L, and growth ra...