Abstract
The diel distribution of feeding activity during the spawning season was compared for territorial male and female cunners Tautogolabrus adspersus in Conception Bay, Newfoundland, Canada between June and August, 1978. Territorial males feed significantly less often than females and concentrate their feeding activities in the morning, whereas females feed as frequently in the afternoon as in the morning. Based on the contents of alimentary tracts, territorial males, non-territorial males, and females have different diets. Since these three groups share the same habitat, the observed dietary differences probably reflect differences in their foraging behaviour. The relevance of these findings to the concept of ‘time minimizer’ and ‘energy maximizer’ is discussed.
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Bagenal, T. B.: The relationship between food supply and fecundity in brown trout, Salmo trutta L. J. Fish. Biol. 1, 167–182 (1969)
Bagenal, T. B.: Aspects of fish fecundity. In: Ecology of freshwater production, pp 75–101. E.D. by S.D. Gerking. New York: Wiley & Sons 1978
Brawn, V. M., D. L. Peer and R. J. Bentley: Caloric content of the standing crop of benthic and epibenthic invertebrates of St. Margaret's Bay, Nova Scotia. J. Fish. Res. Bd Can. 25, 1803–1811 (1968)
Charnov, E. L.: Optimal foraging: attack of a mantid. Am. Nat. 110, 141–151 (1976)
Emlen, J. M.: Optimal choice in animals. Am. Nat. 102, 59–74 (1968)
Green, J. M.: Restricted movements and homing of the cunner, Tautogolabrus adspersus (Walbaum). (Pisces: Labridae). Can. J. Zool. 53, 1427–1431 (1975)
Green, J. M. and M. Farwell: Winter habits of the cunner Tautogolabrus adspersus (Walbaum, 1792), in Newfoundland. Can. J. Zool. 49, 1497–1499 (1971)
Gross, M. R.: Sneakers, satellites and parentals: polymorphic mating strategies in North American sunfishes. Z. Tierpsychol. 60, 1–26 (1982)
Gross, M. R. and E. L. Charnov: Alternative male life histories in bluegill sunfish. Proc. natl Acad. Sci. USA 77, 6937–6940 (1980)
Helwig, J. T. and K. A. Council (Ed): SAS User's guide, 1979 ed. Raleigh, NC, USA: SAS Institute 1979
Horn, H. S.: Measurement of “overlap” in comparative ecological studies. Am. Nat. 100, 419–424 (1966)
Hixon, M. A.: Food production and competitor density as the determinants of feeding territory size. Am. Nat. 115, 510–530 (1980)
Hixon, M. A.: Energy maximizers and time minimizers: theory and reality. Arm. Nat. 119, 596–599 (1982)
Hoffman, S. G.: Sex-related foraging behavior in sequentially hermaphroditic hogfishes (Bodianus spp.). Ecology 64, 798–808 (1983)
Janetos, A. C. and B. J. Cole: Imperfectly optimal animals. Behav. Ecol. Sociobiol. 9, 203–209 (1981)
Jenkins, B. W.: A qualitative and quantitative investigation of the behaviour of the longhorn sculpin, Myoxocephalus octodecemspinosus (Mitchill 1815), with special reference to feeding. Unpubl. M. Sc. thesis. Memorial University of Newfoundland, St. John's 1975
Kautsky, N.: Growth and size structure in a Baltic Mytilus edulis population. Mar. Biol. 68, 117–133 (1982)
Leim, A. H. and W. B. Scott: Fishes of the Atlantic coast of Canada. Fish. Res. Bd Can. Bull. 155, 269–271 (1966)
Major, P. F.: Predator-prey interactions in two schooling fishes, Caranx ignobilis and Stolephorus purpureus. Anim. Behav. 26, 760–777 (1978)
Martel, G.: Sexual selection and territory size in male cunners, Tautogolabrus adspersus, in Conception Bay, Newfoundland. Unpubl. M. Sc. thesis. Memorial University of Newfoundland, St. John's 1983
Morisita, M.: Measuring of interspecific association and similarity between communities. Mem. Fac. Sci. Kyushu Univ. Ser. Biol. 3, 65–80 (1959)
Neill, S. R. St. J. and J. M. Cullen: Experiments on whether schooling by their prey affects the hunting behaviour of cephalopods and fish predators. Proc. Zool. Soc. Lond. 172, 549–569 (1974)
Perrone, M., Jr.: Mate size and breeding success in a monogamous cichlid fish. Environ. Biol. Fish. 3, 193–201 (1978)
Pottle, R. A. and J. M. Green: Field observations on the reproductive behaviour of the cunner, Tautogolabrus adspersus (Walbaum) in Newfoundland. Can. J. Zool. 57, 247–256 (1979a)
Pottle, R. A. and J. M. Green: Territorial behaviour of the north temperate labrid, Tautogolabrus adspersus. Can. J. Zool. 57, 2337–2347 (1979b)
Pottle, R. A., J. M. Green and G. Martel: Dualistic spawning behaviour of the cunner, Tautogolabrus adspersus (Pisces: Labridae), in Bonne Bay, Newfoundland. Can. J. Zool. 59, 1582–1585 (1981)
Pulliam, H. R.: On the theory of optimal diets. Am. Nat. 108, 58–74 (1974)
Pyke, G. H., H. R. Pulliam and E. L. Charnov: Optimal foraging: a selective review of theory and tests. Q. Rev. Biol. 52, 137–154 (1977)
Schoener, T. W.: Models of optimal size for a solitary predator. Am. Nat. 103, 277–313 (1969)
Schoener, T. W.: Theory of feeding strategies. A. Rev. Ecol. Syst. 11, 369–404 (1971)
Scott, D. P.: Effect of food quantity on fecundity of rainbow trout, Salmo gairdneri. J. Fish. Res. Bd Can. 19, 715–731 (1962)
Sokal, R. R. and F. J. Rohlf. Biometry, 859 pp. San Francisco: W. A. Freeman 1981
Warner, R. R. and D. R. Robertson: Sexual patterns in the labroid fishes of Western Caribbean, I: the wrasses (Labridae). Smithson. Contrib. Zool. 254, 1–27 (1978)
Werner, E. E. and D. J. Hall: Optimal foraging and size selection of prey by the bluegill sunfish (Lepomis machrochirus). Ecology 55, 1042–1052 (1974)
Winer, B. J.: Statistical principles in experimental design, 907 pp. New York: McGraw-Hill 1971
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Communicated by R. W. Doyle, Halifax
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Green, J.M., Martel, G. & Martin, D.W. Comparisons of the feeding activity and diets of male and female cunners Tautogolabrus adspersus (Pisces: Labridae). Mar. Biol. 84, 7–11 (1984). https://doi.org/10.1007/BF00394521
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DOI: https://doi.org/10.1007/BF00394521