. Bulletin. Natural History; Natural History. 562 Illinois Natural History Survey Bulletin Vol. 32, Artikel 4. Chirurgische Implantation eines Funksenders in einem largemouth Bass. Maßnahme für den Vergleich von Fisch Tätigkeit sein - Tween. Die endgültige bedeuten bevorzugen - rot Temperatur (°C) war bestimmt für Fische beobachtet, sechs oder mehr Mal duringju-ly und August. Daten wurden mit Hilfe der statistischen Analyse System (SAS) GLM Prozedur (Barr et al. analysierten 1976) auf einem IBM 360/75 Computer an der Universität von Il-linois Urbana Campus. Analyse der Varianz wurde verwendet, um die durchschnittliche tägliche Bewegung der Ra zu vergleichen.

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. Bulletin. Natural history; Natural history. 562 Illinois Natural History Survey Bulletin Vol. 32, Art. 4. Surgical implantation of a radio transmitter in a largemouth bass. measure for comparing fish activity be- tween study areas. The final mean prefer- red temperature (°C) was determined for fish observed six or more times duringju- ly and August. Data were analyzed using the Statistical Analysis System (SAS) GLM procedure (Barr et al. 1976) on an IBM 360/75 computer at the University of Il- linois Urbana campus. Analysis of variance was used to compare the average daily movement of the radio-tagged fish; study area (heated, unheated, and transi- tion zones of Lake Sangchris and Lake Shelbyville) and sex were tested as main effects. Initial length of the fish was used as a covariable. Analysis of variance was also used to compare the final preferred temperature selected by largemouth bass released in different study areas. Initial length of the fish was again used as a covariable for this analysis. When signifi- cant differences were found, a Duncan Multiple Range Test was used to compare the means. RESULTS AND DISCUSSION Observations on the movements of radio-tagged largemouth bass from heated, unheated, and transition zones of Lake Sangchris, and from unheated Lake Shelbyville are summarized in Tables 1-4, respectively. In Lake Sangchris, 37 largemouth bass were studied: 13 from the heated zone, 13 from the unheated zone, and 11 from the transition zone. Thirty-five bass were studied in Lake Shelbyville. The average weight of the radio-tagged fish from the heated, unheated, and transition zones of Lake Sangchris and from Lake Shelbyville were A largemouth bass that has had a temperature- sensitive radio transmitter im- planted in its body. Note the external thermistor.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly

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