Here is some info to factor into this discussion.

Movement, Home Range, and Site Fidelity of
Bluegills in a Great Plains Lake
CRAIG P. PAUKERT, DAVID W. WILLIS, AND MICHELLE A. BOUCHARD

Bluegill home ranges may be influenced by fish size (Minns 1995), food density (Fish and Savitz
1983), and social hierarchies (Fish and Savitz 1983). In addition, sexual and seasonal differences can affect home range; for example, male bluegills will guard nests after spawning, thus reducing home range size during this period. Larger bluegills may exhibit site fidelity, remaining in the same area for an extended period of time (Ball 1943). Fish and Savitz (1983) found bluegill home ranges of 0.15�0.75 ha lasting for 1�3 months and a negative relation between bluegill size and home
range size for fish ,190 mm total length (TL). To our knowledge, no one has investigated seasonal home ranges or home range size of bluegills in lentic habitats over a longer periods (e.g., 6 months)

Our home range estimates for bluegills were larger than the few estimates we found in the literature. Fish and Savitz (1983) reported that bluegill home ranges were less than 1 ha, whereas only 8.5% of the home ranges in Pelican Lake were less than 1 ha. Our estimates of the mean core area home range was about 4.5 times larger than the mean primary occupation area reported by Fish and Savitz (1983). However, minimum convex polygon home ranges tend to overestimate home range size with few observations (Schoener 1981), which may have occurred in our study.