Synopsis
Radio telemetry was used to study the movements of European eels,Anguilla anguilla, in a small (1.2 ha) lake in southwestern Spain in March and April, 1985. Observations were taken on the locations of 7 eels at least once each 2 h for a combined total of 1713 h. The size of individual activity regions varied from 2700 to 1300 m2. Eels covered a larger area at night than during the day, with an average of 23% and 42% of the activity region used during the day and night respectively. Average distance moved between observations was significantly greater at night than in the day. Eels tracked during rainy and cloudy weather were more active during the day and used a larger total area than did those tracked during drier, more stable weather. The standing crop of eels was estimated to be about 77 kg ha−1.
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References cited
Bohun, S. & H.E. Winn. 1966. Locomotor activity of the American eel (Anguilla rostrata). Chesapeake Science 7: 137–147.
Bozeman, E.L., G.S. Helfman & R. Richardson. 1985. Population size and home range of American eels in a Georgia tidal creek. Trans. Amer. Fish. Soc. 114: 821–825.
Charnov, E.L., G.H. Orians & K. Hyatt. 1976. Ecological implications of resource depression. Amer. Nat. 110: 247–259.
Fish, P.A. & J. Savitz. 1983. Variations in home ranges of largemouth bass, yellow perch, bluegills, and pumpkinseeds in an Illinois Lake. Trans. Amer. Fish. Soc. 112: 147–153.
Ford, R.G. 1983. Home range in a patchy environment. Optimal foraging predictions. Amer. Zool. 23: 315–326.
Hernando, J.A. 1978. Structure of the fish community of the Guadalquivir wetlands. Doctoral Thesis, University of Seville, Spain. 146 pp. (In Spanish).
Helfman, G.S., D.L. Stoneburner, E.L. Bozeman, P.A. Christian & R. Whalen. 1983. Ultrasonic telemetry of American eel movements in a tidal creek. Trans. Amer. Fish. Soc. 112: 105–110.
LaBar, G.W. & D.E. Facey. 1983. Local movements and inshore population sizes of American eels in Lake Champlain, Vermont. Trans. Amer. Fish. Soc. 112: 111–116.
Mohr, H. 1970. Aktivitatsperiodik bei Aalen. Infn. Fischw. Auslds. 17: 105–107.
Moriarity, C. 1978. Eels: a natural and unnatural history. Universe Books, New York. 192 pp.
Odum, E.P. & E.J. Kuenzler. 1955. Measurement of territory and home range size in birds. Auk 72: 128–137.
Ricker, W.E. 1975. Computation and interpretation of biological statistics of fish populations. Fish. Res. Board Can. Bull. 191. 382 pp.
Roscoe, J.T. 1969. Fundamental research statistics for the behavioral sciences. Holt, Rinehart and Winston, New York. 483 pp.
Ryan, P. A. 1984. Diel and seasonal feeding activity of the shortfinned eel,Anguilla australis schmidtii, in Lake Ellesmere, Canterbury, New Zealand. Env. Biol. Fish. 11: 229–234.
Tesch, F.W. 1977. The eel. Biology and management of anguillid eels. Chapman and Hall, London. 434 pp.
Welch, P.S. 1948. Limnological methods. Blakiston, Co., Philadelphia. 381 pp.
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LaBar, G.W., Hernando Casal, J.A. & Delgado, C.F. Local movements and population size of European eels,Anguilla anguilla, in a small lake in southwestern Spain. Environ Biol Fish 19, 111–117 (1987). https://doi.org/10.1007/BF00001881
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DOI: https://doi.org/10.1007/BF00001881