Hostname: page-component-78c5997874-s2hrs Total loading time: 0 Render date: 2024-11-05T15:04:00.307Z Has data issue: false hasContentIssue false
  • English
  • Français

Bionomics of the poor-cod (Gadus minutus L.) in the Plymouth area

Published online by Cambridge University Press:  11 May 2009

M. Devidas Menon
M. Devidas Menon
Affiliation:
Assistant Director of Fisheries, Madras From the Plymouth Laboratory
Get access Rights & Permissions [Opens in a new window]

Extract

The volumetric and qualitative analysis of the food of Gadus minutus has been discussed. The post-larvae feed entirely on copepods, mostly Pseudocalanus elongatus. The O-group feeds on copepods, small decapods, amphipods, polychaetes and isopods. The adolescent and adult groups feed on larger decapods like Processa canaliculata, Galathea spp. and Portunus spp., fish, polychaetes and amphipods.

The age and rate of growth of G. minutus have been computed from a study of the supra-occipital crest. These age determinations have been correlated with the age determined by scales, otoliths and size-analysis. Back-calculations have been made by graphical method and by using the Lea-Dahl formula. The differences between the back-calculated lengths and actual observed lengths are negligible.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 29 , Issue 1 , April 1950 , pp. 185 - 239
Copyright
Copyright © Marine Biological Association of the United Kingdom 1950

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

REFERENCES

Aikawa, H., 1938. Age determination of chub-mackerel, Scomber japonicus (Houttuyn). Bull. Jap. Soc. Sci. Fish., Vol. 6, pp. 9–12.CrossRefGoogle Scholar
Brown, W. W. & Cheng, C., 1946. Investigations into the food of the cod (Gadus callarias) off Bear Island, and of the cod and haddock (Gadus aeglefinus L.) off Iceland and the Murman coast. Hull Bull. Mar. Ecol., Vol. III, pp. 35–71.Google Scholar
Chaine, J. & Duvergier, J., 1927. Distinction des Gadus capelanus, minutus et luscus par leur sagitta. C. R. Acad. Sci., Paris, T. 184, pp. 977–8.Google Scholar
Chevey, P., 1929. Le Tecaud (Gadus luscus). Résumé de nos connaissances actuelles sur ce poisson. Rev. Trav. Off. Pêche. Marit., T. 2, pp. 74–99.Google Scholar
Chugunov, N. I., 1926. Determination of the age and growth-rate of fish by the bones. Siberian Ichthyological Lab. 3372. Krasnoyarsk. (English translation by Mr F. M. Davis).Google Scholar
Corbin, P. G., 1948. On the seasonal abundance of young fish. IX. The year 1947. Journ. Mar. Biol. Assoc., Vol. XXXVII, pp. 718–22.CrossRefGoogle Scholar
Cunningham, J. T., 1891. The rate of growth of some sea-fishes and their distribution at different ages. Journ. Mar. Biol. Assoc., Vol. 2, pp. 95–140.CrossRefGoogle Scholar
Damas, D., 1909. Contribution a la biologie des gadides. Cons. Perm. Int. Explor. Mer, Rapp. Proc. Verb., Vol. x, Special Part, B 3, pp. 1–227.Google Scholar
Dannevig, A., 1933. On the age and growth of the cod (Gadus callarias L.) from the Norwegian Skaggerak coast. Fisk. Skrift. Ser. Havunders. Rep. Norw. Fish. Mar. Invest, Vol. IV, No. 1, pp. 1–145.Google Scholar
Day, Francis, 1880–1884. The Fishes of Great Britain and Ireland, Vol. I. London.Google Scholar
Day, Francis, 1888. On the bib (Gadus luscus) and poor-cod (Gadus minutus). Ann. Mag. Nat. Hist., Vol. I, Ser. 6, pp. 151–4.CrossRefGoogle Scholar
Ehrenbaum, E., 1901–1910. Eier und Larven von Fischen des Nordischen Planktons. Nordisches Plankton, Lief. X, 1905, pp. 1–216; 1909, pp. 217–413.Google Scholar
Fage, L., 1910–1911. Le Capelan de la Mediterranée: Gadus capelanus (Risso) et ses rapports avec les espèces voisines: Gadus luscus Linné et Gadus minutus O. Fr. Müller. Arch. Zool. Exp. Gen., Ser. 5, T. VI, pp. 257–282.Google Scholar
Ford, E., 1938. Vertebral variation in teleostean fishes. Journ. Mar. Biol. Assoc., Vol. XXII, pp. 1–60.Google Scholar
Franz, V. von, 1910. Ueber die Ernährungsweise einiger Nordseefische, besonders der Scholle. Wissensch. Meeresunters. Abt. Helgoland, Bd. IX, Heft 2, 14, pp. 197–215.Google Scholar
Fries, B., Ekstrom, C. U. & Sundervall, C., 1892. A History of Scandinavian Fishes. Pt. I, 2nd ed. revised by Smitt, F. A.. Stockholm.Google Scholar
Graham, M., 1929 a. On the collection and preparation of fish scales. Journ. Cons. Perm. Int. Explor. Mer, Vol. IV, pp. 339–40.CrossRefGoogle Scholar
Graham, M., 1929 b. Studies of age determination in fish. Pt. I. Fish. Invest. Min. Agric. Fish., Ser. II, Vol. XI, No. 2. London.Google Scholar
Graham, M., 1929 c. Studies of age determination in fish. Pt. II. A survey of the literature. Fish. Invest. Min., Agric. Fish., Ser. II, Vol. XI, No. 3. London.Google Scholar
Hart, T. J., 1946. Report on trawling surveys on the Patagonian continental shelf. Discovery Rep., Vol. XXIII, pp. 223–408.Google Scholar
Hickling, C. F., 1927. The natural history of the hake. Parts I and II. Fish. Inv. Min. Agric. Fish., Ser. 11, Vol. X, No. 2, 100 pp. London.Google Scholar
Hickling, C. F., 1930. The natural history of the hake. Part III. Seasonal changes in the condition of the hake. Fish. Inv. Min. Agric. Fish., Ser. 11, Vol. XII, No. 1, London.Google Scholar
Hickling, C. F., 1933. The natural history of the hake. Part IV. Age determination and growthrate. Fish. Inv. Min. Agric. Fish., Ser. II, Vol. XIII, No. 2, 120 pp. London.Google Scholar
Hickling, C. F. 1940. The fecundity of the herring of the southern North Sea. Journ. Mar. Biol. Assoc., Vol. 24, pp. 619–32.Google Scholar
Hoek, P. P. C., 1910. Bericht über Eier und Larven von Gadiden, mit besonderer Berücksichtigung der seit Juli 1908 veröffentlichten Arbeiten über diesen Gegenstand. Cons. Perm. Int. Explor. Mer., Rapp. Proc. Verb., Vol. XII, C, 1, pp. 1–29.Google Scholar
Johnston, M., 1938. Some methods of preparing teleost fish otoliths for examination. Journ. Roy. Micr. Soc., Vol. LVIII, Ser. III, pp. 373–5.Google Scholar
Lebour, M. V., 1917. The food of post-larval fish. Journ. Mar. Biol. Assoc., Vol. XI, PP. 433–69.Google Scholar
Lebour, M. V., 1919. The food of young fish. Journ. Mar. Biol. Assoc., Vol. XII, pp. 261–324.Google Scholar
Le Cren, E. D., 1947. The determination of the age and growth of the perch (Perca fluviatilis) from the opercular bone. Journ. Anim. Ecology, Vol. 16, pp. 188–204.CrossRefGoogle Scholar
Marine Biological Association, 1931. Plymouth Marine Fauna. 2nd ed.Google Scholar
McIntosh, W. C. & Masterman, A. T., 1897. The Life-Histories of the British Marine Food Fishes. London.Google Scholar
Menon, M. D., 1950. The determination of the age and growth-rate in fishes by bones. (In the Press.)Google Scholar
Orton, J. H., 1929. Reproduction and death in invertebrates and fishes. Nature, Vol. CXXXIII, pp. 14–15.CrossRefGoogle Scholar
Russell, F. S., 1930–1947. On the seasonal abundance of pelagic young of the teleostean fishes in the Plymouth area. I–VIII, Journ. Mar. Biol. Assoc., Vols. XVI, pp. 707–22; XX, pp. 147–79; XX, pp. 595–604; XXI, pp. 679–86; XXII, pp. 493–500; XXIII, pp. 381–86; XXIV, pp. 265–70; XXVI, pp. 605–8.CrossRefGoogle Scholar
Schmidt, Johs., 1902–1907. The distribution of the pelagic fry and the spawning regions of the gadoids in the North Atlantic from Iceland to Spain. Cons. Perm. Int. Explor. Mer, Rapp. Proc Verb. Special Part, B 4, 1909, 229 pp.Google Scholar
Schmidt, Johs., 1905. The pelagic post-larval stages of the Atlantic species of Gadus. Pt. I. Medd. Kom. Havund. Fiskeri, Bd. I, No. 4.Google Scholar
Schmidt, Johs., 1906 The pelagic post-larval stages of the Atlantic species of Gadus. Pt. II. Medd. Kom. Havund. Fiskeri, Bd. II, No. 2.Google Scholar
Sund, Oscar, 1927. Biological statistics of the stocks of fish. I. The Arcto-Norwegian cod stock. Journ. Cons. Perm. Int. Explor. Mer, Vol. II, pp. 161–9.CrossRefGoogle Scholar
Tåning, Å. V., 1944. Experiments on meristic and other characters in fishes. I. Medd. Kom. Danm. Fisk. Havund. Ser. Fiskeri, Bd. XI, pp. 1–66.Google Scholar
Tereschenko, K. K., 1917. La brême (Abramis brama L.) de la région du Volga et de la mer Caspienne, son industrie et la biologie. Trav. Lab. Ichth. d'Astrakhan. Vol. IV, Fasc. 2, pp. 1–159. (In Russian.)Google Scholar
Thompson, Harold, 1922. Problems in haddock biology. With special reference to the validity and utilisation of the scale theory. I. Preliminary report. Fish. Scot. Sci. Invest. No. V (May 1923).Google Scholar
Thompson, Wm., 1856. The Natural History of Ireland. Vol. IV. Mammalia, Reptiles and Fishes. London, 156 pp.Google Scholar
Thomson, J. S., 1902. The periodic growth of scales as an index of age. Journ. Mar. Biol. Assoc., Vol. VI, N.S., pp. 373–5.CrossRefGoogle Scholar
Thomson, J. S., 1904. The periodic growth of scales in Gadidae as an index of age. Journ. Mar. Biol. Assoc., Vol. VII N.S., pp. 1–109.Google Scholar
Williamson, H. C., 1906. On the specific characters of Gadus luscus, Gadus minutus and Gadus esmarcki. Bd. Fish. Scot. Sci. Invest., 24th Rep., pp. 116–40.Google Scholar
Yasuda, H, 1940. On the rings formed on the scale, vertebral centrum and otolith of the same individual fish, Scombrops chilodipteroides and Theragra chalcogramma (Pallas). Bull. Jap. Soc. Sci. Fish. Vol. 8, pp. 298–300. (In Japanese.)CrossRefGoogle Scholar