Barry W. Lyons

Distribution and Habitat Selection of Florida and Northern Largemouth Bass in Lake Tawakoni, Texas

An ultrasonic-telemetry study was conducted to compare spatial and temporal distribution and habitat use of Florida largemouth bass (Micropterus salmoides floridanus, FLMB) and northern largemouth bass (M. s. salmoides, NLMB). Twentyfour largemouth bass (12 FLMB and 12 NLMB) were implanted with ultrasonic transmitters and released in Waco Bay, a 1,215-ha major arm of Lake Tawakoni, Texas. Eleven FLMB and 10 NLMB were located at least once during the year-long study period (range 1-24). Average 75% and 95% contour level home ranges for FLMB were 19.0 and 44.2 ha, respectively; for NLMB they...


Post-mortem Weight Gain in Largemouth Bass

Largemouth bass (Micropterus salmoides) held at lO.7 and 26.7 C in insulated fiberglass tanks were treated with rotenone and inspected daily to determine days-tosurfacing and change in body weight. Fish held at lO.7 C surfaced in 3-12 days, whereas fish held at 26.7 C surfaced within 24 hours. Fish at each temperature gained weight after death. Analysis of weight gain in fish held at 10.7 C produced no significant relationship between weight-gain and period of submergence for fish submerged 7 or more days. Weight gain was an exponential function of total length in fish held at lO.7 C and a...