| Eintrag |
Autor  |
Hoenig, J. M.; Morgan, M. J.; Brown, C. A. |
| Titel |
Analysing differences between two age determination methods by tests of symmetry |
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Zeitschrift, Artikel |
| Jahr |
1995 |
Publikation |
Can. J. Fish. Aquat. Sci. J. Can. Sci. Halieut. Aquat |
Kurztitel der Zeitschrift |
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| Band |
52 |
Ausgabe |
2 |
Seiten |
364-368 |
| Schlüsselwörter |
Altersbestimmung, Fischerei, Statistik, Methode |
| Zusammenfassung |
A common problem in fisheries science is the comparison of two methods for obtaining ages of individual animals. The authors suggest that if the overall level of agreement is low between two ageing methods used on the same sample of fish, then one can use a test of symmetry to look for evidence of systematic disagreement. A chi super(2) test is used to determine if the number of fish assigned age i from method 1 and age j from method 2 differs significantly from the number of fish assigned age j from method 1 and age i from method 2. Such a test can also be used to determine the range of nominal ages over which two methods appear to give comparable results. |
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Dep. Fish. and Oceans, P.O. Box 5667, St. John's, NF A1C 5X1, Canada |
Geprüft |
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| Rufnummer |
532 |
Signatur |
2331 |
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