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Comparative analysis of visual census techniques for highly mobile, reef-associated piscivores (Carangidae)

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Synopsis

Visual census techniques applicable to coral reef-associated fishes are reviewed and the results of field tests using six (three transect-based and three point-based) to estimate the density of carangids at Carter Reef, Great Barrier Reef, are presented. Data are analyzed with respect to the effects of observers on fishes seen, observer biasses, precision of the estimates and, as far as possible, accuracy of the estimates. Transects generate estimates of population density and structure different from those of point-based estimates. Various point-based census methods, however, generate density estimates consistent with one another and are generally more precise than transect-based methods. The results of the field study obviously cannot be generalized to other quite different types of reef fishes. The problems we encountered and a review of the techniques used to census reef fishes visually in the past, however, suggest that: (1) interval counts, such as Rapid Visual Census techniques, are likely to be inaccurate and difficult to compare; (2) for species with high probabilities of detection, instantaneous area counts appear to be the most effective way to estimate densities, whereas cryptic species are best censused using instantaneous variable distance point counts, and (3) strip transects may often be less efficient than line transects, due to inconstant levels of subject detectability.

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References cited

  • Alevizon, W.S. & M.G. Brooks. 1975. The comparative structure of two western Atlantic reef-fish assemblages. Bull. Mar. Sci. 25: 482–490.

    Google Scholar 

  • Amman, G.D. & P.H. Baldwin. 1960. A comparison of methods for censusing wookpeckers in spruce-fir forests of Colorado. Ecology 41: 699–706.

    Google Scholar 

  • Anderson, B.W. & R.D. Ohmart. 1981. Comparisons of avian census results using variable distance transect and variable circular plot techniques. pp. 186–192. In: C.J. Ralph & J.M. Scott (ed.) Estimating Numbers of Terrestrial Birds, Studies in Avaian Biology 6, Allen Press, Lawrence.

    Google Scholar 

  • Anderson, G.R.V., A.H. Ehrich, J.D. Roughgarden, B.C. Russell & F.H. Talbot. 1982. The community structure of coral reef fishes. Amer. Nat. 117: 476–495.

    Google Scholar 

  • Anonymous. 1979. Aerial surveys of fauna populations. Special Publ. No. 1, Australian Nat. Parks and Wildl. Serv., Canberra. 126 pp.

  • Balph, M.H., L.C. Stoddart & D.F. Balph. 1977. A simple technique for analyzing bird transect counts. Auk 94: 606–607.

    Google Scholar 

  • Bardach, J.E. 1958. On the movements of certain Bermuda reef fishes. Ecology 39: 139–146.

    Google Scholar 

  • Blondel, J., C. Ferry & B. Frochot. 1981. Point counts with unlimited distance. pp. 414–420.In: C.J. Ralph & J.M. Scott.

    Google Scholar 

  • Blower, J.G., L.M. Cook & J.A. Bishop. 1981. Estimating the size of animal populations. George Allen & Unwin, London. 127 pp.

    Google Scholar 

  • Bohnsack, J.A. & S.P. Bannerot. 1982. A random point census technique for visually assessing coral reef fishes. pp. 5–7. In: The Visual Assessment of Fish Populations in the Southeastern United States, S. C. Sea Grant Tech. Rpt. 1.

  • Brewer, R. 1972. An evaluation of winter bird-population studies. Wilson Bull. 47: 371–395.

    Google Scholar 

  • Brock, R.E. 1982. A critique of the visual census method for assesing coral reef fish populations. Bull. Mar. Sci. 32: 269–276.

    Google Scholar 

  • Brock, V.E. 1954. A preliminary report on a method of estimating reef fish populations. J. Wildl. Manage. 18: 297–308.

    Google Scholar 

  • Buckman, N.S. & J.C. Ogden. 1973. Territorial behavior of the striped parrotfishScarus croicensis Bloch (Scaridae). Ecology 54: 1377–1382.

    Google Scholar 

  • Burnham, K.P., D.R. Anderson & J.L. Laake, 1980. Estimation of density from line transect sampling of biological populations. Wildl. Monogr. 72. 202 pp.

  • Burnham, K.P., D.R. Anderson & J.L. Laake. 1981. Line transect estimation of bird population density using a Fourier series. pp. 466–482. In: C.J. Ralph & J.M. Scott (ed.) Estimating Numbers of Terrestrial Birds, Studies in Avian Biology 6, Allen Press, Lawrence.

    Google Scholar 

  • Caughley, G. 1974. Bias in aerial survey. J. Wildl. Manage. 38: 921–933.

    Google Scholar 

  • Caughley, G. 1977. Analysis of vertebrate populations. Wiley, London. 234 pp.

    Google Scholar 

  • Caughley, G. 1979. Design for aerial censuses. pp. 15–23. In: Aerial surveys of faunal populations, Spec. Publ. 1, Australian Nat. Parks Wildl. Serv., Canberra. 126 pp.

    Google Scholar 

  • Caughley, G., R. Sinclair & D. Scott-Kemmis. 1976. Experiments in aerial survey. J. Wildl. Manage. 40: 290–300.

    Google Scholar 

  • Chave, E.H. & D.B. Eckert. 1974. Ecological aspects of the distributions of fishes at Fanning Island. Pac. Sci. 28: 297–317.

    Google Scholar 

  • Clarke, R.D. 1977. Habitat distribution and species diversity of chaetodontid and pomacentrid fishes near Bimini, Bahamas. Mar. Biol. 40: 277–287.

    Google Scholar 

  • Cochran, W.G. 1953. Sampling techniques. Wiley, New York. 330 pp.

    Google Scholar 

  • Cormack, R.M. 1973. Commonsense estimates from capture-recapture studies. pp. 225–234. In: M.S. Bartlett & R.W. Hiorns (ed.) The Mathematical Theory of the Dynamics of Biological Populations, Academic Press, New York.

    Google Scholar 

  • Cormack, R.M. 1979. Models for capture-recapture. pp. 217–255. In: R.M. Cormack, G.P. Patil & D.S. Robson (ed.) Sampling Biological Populations, Internat. Co-op. Publ. House, Fairland.

    Google Scholar 

  • Cormack, R.M., G.P. Patil & Robson (ed.). 1979. Sampling biological populations. Internat. Coop. Publ. House. Fairland. 392 pp.

  • Dawson, D.G. 1981. Experimental design when counting birds. pp. 392–398. In: C.J. Ralph & J.M. Scott (ed.) Estimating Numbers of Terrestrial Birds, Studies in Avian Biology 6, Allen Press, Lawrence.

    Google Scholar 

  • De Martini, E.E. & D. Roberts. 1982. An empirical test of biases in the rapid visual technique for species-time censuses of reef fish assemblages. Mar. Biol. 70: 129–134.

    Google Scholar 

  • Eberhardt, L.L. 1978. Transect methods for population studies. J. Wildl. Manage. 38: 921–933.

    Google Scholar 

  • Ekman, J. 1981. Problems of unequal observability. pp. 230–234. In: C.J. Ralph & J.M. Scott (ed.) Estimating Numbers of Terrestrial Birds, Studies in Avian Biology 6, Allen Press, Lawrence.

    Google Scholar 

  • Emlen, J.T. 1971. Population densities of birds derived from transect counts. Auk 88: 323–342.

    Google Scholar 

  • Emlen, J.T. 1977. Estimating breeding season bird densities from transect counts. Auk 94: 455–468.

    Google Scholar 

  • Franzreb, K.E. 1981. The determination of avian densities using the variable-strip and fixed-width transect surveying methods. pp. 139–145. In: C.J. Ralph & J.M. Scott (ed.) Estimating Numbers of Terrestrial Birds, Studies in Avian Biology 6, Allen Press, Lawrence.

    Google Scholar 

  • Gates, C.E. 1969. Simulation study of estimators for the line transect sampling method. Biometrics 25: 317–328.

    Google Scholar 

  • Gates, C.E. 1979. Line transects and related issues. pp. 71–154. In: R.M. Cormack, G.P. Patil & D.S. Robson (ed.) Sampling Biological Populations, Internat. Co-op. Publ. House, Fairland.

    Google Scholar 

  • Gates, C.E. 1981. Optimizing sampling frequency and numbers of transects and stations. pp. 399–404. In: C.J. Ralph & J.M. Scott (ed.) Estimating Numbers of Terrestrial Birds, Studies in Avian Biology 6, Allen Press, Lawrence.

    Google Scholar 

  • Gilbert, P.F. & J.R. Grieb. 1957. Comparison of aerial and ground deer counts in Colorado. J. Wildl. Manage. 21: 33–37.

    Google Scholar 

  • Gladfelter, W.B. & W.S. Johnson. 1983. Feeding niche separation in a guild of tropical reef fishes (Holocentridae). Ecology 64: 552–563.

    Google Scholar 

  • Granholm, S.L. 1983. Bias in density estimates due to movement of birds. Condor 85: 243–248.

    Google Scholar 

  • Great Barrier Reef Marine Park Authority. 1978. Workshop on reef fish assessment and monitoring. G.B.R.M.P.A. Workshop Ser. Townsville, Aust. 66 pp.

    Google Scholar 

  • Great Barrier Reef Marine Park Authority. 1979. Workshop on coral trout assessment techniques. G.B.R.M.P.A. Workshop Ser. Townsville, Aust. 85 pp.

    Google Scholar 

  • Gronell, A.M. 1980. Space utilization by the cocoa damselfish,Eupomacentrus variables (Pisces: Pomacentridae). Bull. Mar. Sci. 30: 237–251.

    Google Scholar 

  • Gronell, A.M. 1984. Courtship, spawning and social organization of the pipefish,Coryhoichthys intestinalis (Pisces: Syngnathidae) with notes on two congeneric species. Z. Tierpsychol. 65: 1–24.

    Google Scholar 

  • Hall, G.A. 1964. Breeding bird censuses — why and how. Audubon Field Notes 18: 413–416.

    Google Scholar 

  • Heckel, D.G. & J. Roughgarden. 1979. A technique for estimating the size of lizard populations. Ecology 60: 966–975.

    Google Scholar 

  • Jones, R.S. & J.A. Chase. 1975. Community structure and distribution of fishes in an enclosed high island lagoon in Guam. Micronesica 11: 127–148.

    Google Scholar 

  • Jones, R.S. & M.J. Thompson. 1978. Comparison of Florida reef fish assemblages using a rapid visual technique. Bull. Mar. Sci. 28: 159–172.

    Google Scholar 

  • Keenleyside, M.H.A. 1972. The behavior ofAbudefduf zonatus (Pisces, Pomacentridae) at Heron Island, Great Barrier Reef. Anim. Behav. 20: 763–774.

    Google Scholar 

  • Kelker, G.H. 1946. Measurement and interpretation of forces that determine populations of managed deer herds. Ph.D. Thesis, University of Michigan, Ann Arbor. 443 pp.

  • Kendeigh, S.C. 1944. Measurement of bird populations. Ecol. Monogr. 14: 67–106.

    Google Scholar 

  • Kimmel, J.J. 1985. A new species-time method for visual assessment of fishes and its comparison with established methods. Env. Biol. Fish. 12: 23–32.

    Google Scholar 

  • Le Resche, R.E. & R.A. Rausch. 1974. Accuracy and precision of aerial moose censusing. J. Wildl. Manage. 38: 175–182.

    Google Scholar 

  • Luckhurst, B.E. & K. Luckhurst. 1978. Analysis of the influence of substrate variables on coral reef fish communities. Mar. Biol. 49: 317–323.

    Google Scholar 

  • Moyer, J.T. & A. Nakazono. 1978. Population structure, reproductive behavior and protogynous hermaphroditism in the angel fishCentropyge interruptus at Miyake-jima, Japan. Japan. J. Ichthyol. 25: 25–39.

    Google Scholar 

  • Nichols, J.D., B.R. Noon, S.L. Stokes & J.E. Hines. 1981. Remarks on the use of mark-recapture methodology in estimating avian population size. pp. 121–136. In: C.J. Ralph & J.M. Scott (ed.) Estimating Numbers of Terrestrial Birds, Studies in Avian Biology 6, Allen Press, Lawrence.

    Google Scholar 

  • Nilsson, S.G. 1974. Methods of estimating bird population densities during the winter. Ornis Scand. 5: 37–46.

    Google Scholar 

  • Nursall, J.R. 1977. Territoriality in redlip blennies (Ophioblenius atlanticus — Pisces: Blenniidae). J. Zool. (Lond.) 182: 205–223.

    Google Scholar 

  • Odum, H.T. & E.P. Odum. 1955. Trophic structure and productivity of a winward coral reef community on Eniwetok Atoll. Ecol. Monogr. 25: 291–320.

    Google Scholar 

  • Pollard, K.H. 1981. Capture-recapture models: a review of current methods, assumptions, and experimental design. pp. 426–435. In: C.J. Ralph & J.M. Scott (ed.) Estimating Numbers of Terrestrial Birds, Studies in Avian Biology 6, Allen Press, Lawrence.

    Google Scholar 

  • Popper, D. & L. Fishelson. 1973. Ecology and behavior ofAnthias squamipinnis (Peters, 1855) (Anthiidae, Teleostei) in the coral habitat of Eilat (Red Sea). J. Exp. Zool. 184: 409–424.

    Google Scholar 

  • Potts, G.W. 1980. The predatory behavior ofCaranx melampygus (Pisces) in the channel environment of Aldabra Atoll (Indian Ocean). J. Zool. (Lond.) 192: 323–350.

    Google Scholar 

  • Pyke, G. 1983. Analysis of an instantaneous method for heathland birds. Aust. Wildl. Res. 10: 521–526.

    Google Scholar 

  • Pyke, G.H., H.R. Pulliam & E.L. Charnov. 1977. Optimal foraging: a selective review of theory and tests. Q. Rev. Biol. 52: 137–154.

    Google Scholar 

  • Pyke, G.H. & H.F. Recher. 1984. Censusing Australian birds: a summary of procedures and a scheme for standardisation of data presentation and storage. pp. 55–63. In: S.J.J.F. Davies (ed.) Methods of Censusing Birds in Australia, Dept. cons. Environ., Perth.

    Google Scholar 

  • Ralp, C.J. & J.M. Scott (ed.) Estimating numbers of terrestrial birds, Studies in Avian Biology, 6, Allen Press, Lawrence. 630 pp.

  • Ramsey, F.L. & J.M. Scott. 1979. Estimating population densities from variable circular plot surveys. pp. 155–181. In: R.M. Cormack, G.P. Patil & D.S. Robson (ed.) Sampling Biological Populations, Internat. Co-op. Publ. House, Fairland.

    Google Scholar 

  • Randall, J.E. 1961. Tagging reef fishes in the Virgin Islands. Proc. Gulf. Caribb. Fish. Inst. 14: 201–241.

    Google Scholar 

  • Reese, E.S. 1973. Duration of residence by coral reef fishes on ‘home’ reefs. Copeia 1973: 145–149.

  • Reese, E.S. 1975. A comparative field study of the social behavior and related ecology of reef fishes of the family Chaetodontidae. Z. Tierpsychol. 37: 37–61.

    Google Scholar 

  • Reynolds, R.T., J.M. Scott & R.A. Nausbaum. 1980. A variable circular-plot method for estimating bird numbers. Condor 82: 309–313.

    Google Scholar 

  • Riper, C. van, III. 1981. Summarizing remarks: comparison of methods. pp. 217–218. In: C.J. Ralph & J.M. Scott (ed.) Estimating Numbers of Terrestrial Birds, Studies in Avian Biology 6, Allen Press, Lawrence.

    Google Scholar 

  • Risk, M.J. 1972. Fish diversity on a coral reef in the Virgin Islands. Atoll Res. Bull. 153: 1–6.

    Google Scholar 

  • Robertson, D.R. & B. Lassig. 1980. Spatial distribution patterns and coexistence of a group of territorial damselfishes from the Great Barrier Reef. Bull. Mar. Sci. 30: 187–203.

    Google Scholar 

  • Robinette, W.L., C.M. Loveless & D.A. Jones. 1974. Field tests of strip census methods. J. Wildl. Manage. 38: 81–96.

    Google Scholar 

  • Russell, B.C., F.H. Talbot, G.R.V. Anderson & B. Goldman. 1978. Collection and sampling of reef fishes. pp. 329–345. In: D.R. Stoddart & R.E. Johannes (ed.) Monographs on Oceanographic Methodology 5, Coral reefs: Research Methods, UNESCO, Norwich.

    Google Scholar 

  • Sale, P.F. 1974. Mechanisms of coexistence in a guild of territorial fishes at Heron Island. Proc. Second Internat. Coral Reef Symp. 1: 193–206.

    Google Scholar 

  • Sale, P.F. 1980. The ecology of fishes on coral reefs. Annu. Rev. Oceanogr. Mar. Biol. 18: 367–421.

    Google Scholar 

  • Sale, P.F. & W.A. Douglas. 1981. Precision and accuracy of visual census technique for fish assemblages on coral patch reefs. Env. Biol. Fish. 6: 333–339.

    Google Scholar 

  • Sale, P.F. & B.J. Sharp. 1983. Correction for bias in visual transect censuses of coral reef fishes. Coral Reefs 2: 37–42.

    Google Scholar 

  • Sanderson, S.L. & A.C. Solonsky. 1980. A comparison of two visual survey techniques for fish populations. Pac. Sci. 34: 237.

    Google Scholar 

  • Schweder, T. 1977. Point process models for line transect experiments. pp. 221–242. In: J.R. Barba, F. Brodeau, G. Romier & B. Van Cutsem (ed.) Recent Developments in Statistics, North Holland, New York.

    Google Scholar 

  • Seber, G.A. 1973. Estimation of animal abundance and related parameters. Griffin, London. 506.

    Google Scholar 

  • Seber, G.A. 1979. General mathematical principles and theory of fauna sampling. pp. 1–7.In: Aerial Surveys of Fauna Populations, Australian Nat. Parks Wildl. Serv., Spec. Publ. 1, Canberra.

  • Shields, W.M. 1979. Avian census techniques: an analytical review. pp. 23–51. In: J.G. Dickson, R.N. Conner, R.R. Fleet, J.C. Kroll & J.A. Jackson (ed.) The Role of Insectivorous Birds in Forest Ecosystems, Academic Press, New York.

    Google Scholar 

  • Skirvin, A.A. 1981. Effect of time of day and time of season on the number of observations and density estimates of breeding birds. pp. 271–274. In: C.J. Ralph & J.M. Scott (ed.) Estimating Numbers of Terrestrial Birds, Studies in Avian Biology 6, Allen Press, Lawrence.

    Google Scholar 

  • Slobodkin, L. & L. Fishelson. 1974. The effects of the cleanerfish,Labroides dimidiatus, on the point diversity of fishes on the reef front of Eilat. Amer. Nat. 108: 369–376.

    Google Scholar 

  • Smith, C.L. 1973. Small rotenone stations: a tool for studying coral reef fish communities. Amer. Mus. Novitat. (2512): 1–21.

    Google Scholar 

  • Smith, C.L. & J.C. Tyler. 1972. Space resource sharing in a coral reef fish community. Nat. Hist. Mus. Los Angeles County, Sci. Bull. 14: 125–170.

    Google Scholar 

  • Smith, C.L. & J.C. Tyler. 1975. Succession and stability in fish communities of dome-shaped patch reefs in the West Indies. Amer. Mus. Novitat. (2572): 1–18.

    Google Scholar 

  • Stuart, A. 1962. Basic ideas of scientific sampling. Griffin, London. 99 pp.

    Google Scholar 

  • Talbot, F.H., B.C. Russell & G.R.V. Anderson. 1978. Coral reef fish communities: unstable, high-diversity systems. Ecol. Monogr. 48: 425–440.

    Google Scholar 

  • Thompson, M.J. & T.W. Schmidt. 1977. Validation of the species/time random count technique sampling fish assemblages at Dry Tortugas. Proc. Third Intern. Coral Reef Symp. 1: 283–288.

    Google Scholar 

  • Thresher, R.E. 1979. Social behavior and ecology of two sympatric wrasses (Labridae:Halichoeres spp.) off the coast of Florida. Mar. Biol. 53: 161–172.

    Google Scholar 

  • Thresher, R.E. 1983. Habitat effects on reproductive success in the coral reef fish,Acanthochromis polyacanthus (Pomacentridae). Ecology 64: 1184–1199.

    Google Scholar 

  • Thresher, R.E. & J.T. Moyer. 1983. Male success, courtship complexity and patterns of sexual selection in three congeneric species of sexually monochromatic and dichromatic damselfishes (Pisces: Pomacentridae). Anim. Behav. 31: 113–127.

    Google Scholar 

  • Tilghman, N.G. & D.H. Rusch. 1981. Comparison of line-transect methods for estimating breeding bird densities in deciduous woodlots. pp. 202–208. In: C.J. Ralph & J.M. Scott (ed.) Estimating Numbers of Terrestrial Birds, Studies in Avian Biology 6, Allen Press, Lawrence.

    Google Scholar 

  • Wiens, J.A. 1981. Scale problems in avian censusing. pp. 513–521. In: C.J. Ralph & J.M. Scott (ed.) Estimating Numbers of Terrestrial Birds, Studies in Avian Biology 6, Allen Press, Lawrence.

    Google Scholar 

  • Williams, A.B. 1936. The composition and dynamics of a beechmaple climax community. Ecol. Monogr. 6: 317–408.

    Google Scholar 

  • Williams, D.M. & A.I. Hatcher. 1983. Structure of fish communities on outer slopes of inshore, mid-shelf and outer shelf reefs of the Great Barrier Reef. Mar. Ecol. Prog. Set. 10: 239–250.

    Google Scholar 

  • Yapp, W.B. 1956. The theory of line transects. Bird Study 3: 93–104.

    Google Scholar 

  • Yates, F. 1949. Sampling methods for censuses and surveys. Griffin, London. 318 pp.

    Google Scholar 

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  1. CSIRO Marine Laboratories, G.P.O. Box 1538, Hobart, 7001, Tasmania, Australia

    Ronald E. Thresher & John S. Gunn

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Thresher, R.E., Gunn, J.S. Comparative analysis of visual census techniques for highly mobile, reef-associated piscivores (Carangidae). Environ Biol Fish 17, 93–116 (1986). https://doi.org/10.1007/BF00001740

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