The selection of suitable indices for the measurement and analysis of fish condition

Journal of Fish Biology - Tập 34 Số 2 - Trang 171-182 - 1989
Thomas Bolger1, P. Connolly1
1Department of Zoology, University College Dublin, Belfield, Dublin 4, Republic of Ireland

Tóm tắt

A survey of the studies published in two leading fisheries journals revealed that the analysis and measurement of condition, based on length‐weight data, has been performed using a wide variety of indices and statistical procedures. Eight forms of index were identified which can be categorized into those which measure the condition of individual fish, i.e. condition factors‘, and those which measure the condition of subpopulations as a whole, i.e. regressions of log, 10 weight on log, 10 length and the parameters of such regressions. Analysis of a test data set indicated that both the form of index and properties of the data set size can dictate the patterns of condition observed. The various indices were reviewed in terms of appropriateness, simplicity and statistical correctness. It was concluded that an index should be selected only after a detailed examination of both the underlying assumptions of the index and the properties of the data set.

Từ khóa


Tài liệu tham khảo

10.1111/j.1095-8649.1985.tb04248.x

10.2307/2412740

10.1098/rspb.2005.3343

10.1111/j.1095-8649.1985.tb03219.x

10.1139/f84-171

10.1111/j.1095-8649.1986.tb05139.x

10.2307/1942570

10.1111/j.1095-8649.1981.tb03766.x

10.1111/j.1095-8649.1977.tb04107.x

10.1111/j.1095-8649.1984.tb04834.x

Connolly P. L.(1986).Aspects of the biology of the gurnard (Pisces: Triglidae) from the Irish Sea.Ph. D. thesis National University of Ireland.

10.1111/j.1095-8649.1980.tb02758.x

Dauod H. A., 1985, Studies on the minnow, Phoxinus phoxinus (L.), from an upland Irish reservoir system, Ir. Fish Invest. Ser. A, 22

10.1111/j.1095-8649.1980.tb03683.x

10.1111/j.1095-8649.1985.tb03207.x

10.2307/3779

Fulton T. W., 1911, The Sovereignty of the Sea

10.3102/00346543042003237

10.1111/j.1095-8649.1979.tb03632.x

10.1111/j.1095-8649.1983.tb04740.x

10.1111/j.1095-8649.1978.tb03445.x

10.2307/1936632

10.1111/j.1095-8649.1987.tb05744.x

Iles T. D., 1984, Fish Reproduction; Strategies and Tactics, 331

10.1139/f79-174

10.1111/j.1095-8649.1980.tb02805.x

10.1139/f86-218

10.1139/f75-171

10.2307/1540

10.1111/j.1095-8649.1979.tb03608.x

10.1111/j.1095-8649.1973.tb04506.x

10.1111/j.1095-8649.1976.tb03950.x

10.1111/j.1095-8649.1982.tb02825.x

Nielsen L. A., 1983, Fisheries Techniques

10.1111/j.1095-8649.1985.tb04297.x

Peters R. H., 1983, The Ecological Implications of Body Sze., 10.1017/CBO9780511608551

10.1111/j.1469-7998.1985.tb05668.x

10.1139/f73-072

10.1139/f75-172

Ricker W. E., 1975, Computation and interpretation of the biological statistics of fish populations, Bull. Fish. Res. Bd Can., 191, 1

Ricker W. E., 1982, Linear regression for naturally variable data, Biometrics, 38, 859

10.1139/z84-279

10.1111/j.1095-8649.1977.tb05130.x

Smith S. J., 1984, Statistical consulting in fisheries science, Fisheries, 9, 16

Sokal R. R., 1981, Biometry

10.2307/2530224

10.1111/j.1095-8649.1975.tb04575.x

10.1577/1548-8659(1971)100<276:GACOTC>2.0.CO;2

10.1111/j.1095-8649.1976.tb03948.x

10.1111/j.1095-8649.1985.tb03190.x

10.1111/j.1095-8649.1985.tb04299.x

10.2307/2015

Weatherley A. H., 1972, Growth and Ecology of Fish Populations

10.1111/j.1095-8649.1983.tb04725.x

Wege G. J.&Anderson R. O.(1978).Relative weight (>Pr): a new index of condition for largemouth bass. InNew Approaches to the Management of Small Impoundments(G. D.Novinger&J. G.Dillardeds pp.79–91. North Central Div. Am. Fish. Soc. Spec. Publ. No. 5.

10.1111/j.1365-3113.1987.tb00201.x

10.1111/j.1095-8649.1985.tb04316.x

10.1577/1548-8659(1982)111<761:GACOBI>2.0.CO;2

10.1111/j.1095-8649.1983.tb02916.x

10.1111/j.1095-8649.1978.tb04178.x

10.1111/j.1095-8649.1979.tb03560.x

Thông tin
Thông tin xuất bản

Journal of Fish Biology

Tập 34 Số 2

171-182

Thông tin tác giả