Hostname: page-component-848d4c4894-5nwft Total loading time: 0 Render date: 2024-05-12T09:19:33.109Z Has data issue: false hasContentIssue false
  • English
  • Français

The growth rate of the Long Rough Dab Hippoglossoides platessoides (Fabr.)

Published online by Cambridge University Press:  11 May 2009

T. B. Bagenal
T. B. Bagenal
Affiliation:
The Marine Station, Millport
Get access Rights & Permissions [Opens in a new window]

Summary

The ages of 1426 female, and 135 male Long Rough Dabs have been determined from otolith readings. The females were found to live into their seventh year and reach 30.5 cm, compared with males that live to their fifth year and reach 19.0 cm in length. However, the mean increase in length per year for a given length, has been found to be the same. The growth of the females has been shown to fit the equation lt=26.437 (I—0.574t) and of the males lt=17.754 (I —0.585t). In the case of the females the observed and calculated values agree quite closely, but with the males there is a greater difference, and it is believed that the discrepancy is due to net selection. The suggestion is made that the calculated mean lengths for each age group are better estimates of those of the population than are the observed sample means. The two standard deviations limits can be estimated about the population means and the sample values are found to be within these limits.

Comparison with previous studies shows that the Clyde fish are smaller and shorter-lived than more northern specimens, though broadly speaking the rate of growth for comparable ages is not so dissimilar.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 34 , Issue 2 , June 1955 , pp. 297 - 311
Copyright
Copyright © Marine Biological Association of the United Kingdom 1955

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Bertalanffy, L. Von, 1938. A quantitative theory of organic growth. Hum. Biol. Vol. 10, No. 2, pp. 181–213.Google Scholar
Bertalanffy, L. Von 1949. Problems of organic growth. Nature, Lond., Vol. 163, pp. 156–8.CrossRefGoogle ScholarPubMed
Essipow, W. J. & Slastnikow, G., 1932. Zur Biologie des Kambala-jorsch (Drepanopsetta platessoides O. Fabr.) im Barentsmeer. Wiss. Fishereiuntersuchungen am Murman (Barents See). Pp. 191–8.Google Scholar
Ford, E., 1933. An account of the herring investigations conducted at Plymouth during the years from 1924 to 1933. J. Mar. biol. Ass. U.K. Vol. 19, pp. 305–84.CrossRefGoogle Scholar
Huntsman, A. G., 1918. Histories of new food fishes I. The Canadian Plaice. Bull. biol. Bd. Can., No. 1, 32 pp.Google Scholar
Krügerj, K. Von, 1942. Erneutes Auftreten der Scharbzunge, Drepanopsetta platessoides Fabr., in der westlichen Ostsee. Kieler Meeresforsch. Vol. 4.Google Scholar
Milinsky, G. I., 1944. On the biology and fisheries of the Long Rough Dab of the Barents Sea. Trans. Knipovich Polyar sci. Inst. Vol. 8, pp. 388–415.Google Scholar
Norman, J. R., 1934. A Systematic Monograph of the Flatfishes (Heterostomata), Vol. 1 London.CrossRefGoogle Scholar
Parrish, B. B. & Jones, R., 1953. Haddock bionomics. I. The state of the haddock stocks in the North Sea 1946–50 and at Faroe 1914–50. Marine Res. 1952, Vol. 4, 27 pp.Google Scholar
Saemundsson, B., 1925. Fiskirannsoknir 1923–1924. Andvari, Reykjavik, pp. 33–71.Google Scholar
Walford, L. A., 1946. A new graphic method of describing the growth of animals. Biol. Bull., Woods Hole, Vol. 90, pp. 141–7.CrossRefGoogle ScholarPubMed