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On the biology of the commoner gadoids in Manx waters

Published online by Cambridge University Press:  11 May 2009

A. K. Nagabhushanam
A. K. Nagabhushanam
Affiliation:
Marine Biological Station, Port Erin, Isle of Man*
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Extract

The food and feeding habits, and general biology of the commoner gadoids in Manx waters have been studied. During the pelagic phase the diet of the gadoids showed a great similarity, consisting mainly of various abundant calanoid copepods. The larger pelagic post-larvae supplemented this basic diet with the inclusion of euphausiid ‘furcilia’ larvae and (in whiting) the amphipod Hyperia. Whiting, cod and pout were often found associated with medusae: the whiting, 21–53 nun long, were taken in large numbers, and their diet was found to be modified as a result of this association.

Young gadoids in a shallow sandy bay showed a great similarity in their basic diets, which typically consisted of various small, swarming mysids, amphipods and isopods. This habitat was a nursery area for many of the gadoids.

The larger fishes fell into two groups: (i) those that were characteristically feeders on the infauna and large, slow-moving epifauna; such fish being provided with stout barbels, well equipped with taste-buds, e.g. cod; (ii) those that feed largely, on the smaller active epifauna and nektonic prey, and possessed no, or only rudimentary, barbels, e.g. whiting.

The larger gadoids showed a concentration after spawning on a shallow, submarine shelf (the Warts Bank) to the south of the Isle of Man. Here the spent fish fed on an abundant and localized food, sand eels. The gadoids were found in this habitat from March to September, and were the object of a local fishery.

There was evidence that the gadoids exercised choice of food from that potentially available from the four primary food sources in each habitat; but if their favourite food was scarce or lacking, they would take substitute food by exploiting sources otherwise normally neglected.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 45 , Issue 3 , October 1965 , pp. 615 - 657
Copyright
Copyright © Marine Biological Association of the United Kingdom 1965

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References

Auerbach, M., 1906. Ein Myxobolus im kopfe von Gadus aeglefinus L. Zool. Anz. Bd. 30, p. 568–70.Google Scholar
Bal, D. V., 1941. Observations on spawning periods and key to pelagic eggs of fishes in Manx waters. Proc. Trans. Lpool biol. Soc, Vol. 54, pp. 1–8.Google Scholar
Bertelsen, E., 1942. Contributions to the biology of the coalfish (Gadus virens L.) in Faroe waters. Meddr Kommn Havunders. Kbh., Ser. Fisk., Bd. 11, 68 pp.Google Scholar
Beverton, R. J. H. & Holt, S. J., 1958. The dynamics of exploited fish populations. Fishery Invest., Lond., Ser. 2, Vol. 19.Google Scholar
Bigelow, H. B. & Schroeder, W. C., 1953. Fishes of the Gulf of Maine. Fishery Bull. U.S., Vol. 53, No. 74.Google Scholar
Bigelow, H. B. & Welsh, W. W., 1925. Fishes of the Gulf of Maine. Bull. U.S. Bur. Fish., Vol. 40, Pt. 1.Google Scholar
Blegvad, H., 1916. On the food of fish in the Danish waters within the Skaw. Rep. Dan. biol. Stn, Vol. 24, pp. 19–72.Google Scholar
Bowers, A. B., 1954. Breeding and growth of whiting (Gadus merlangus L.) in Isle of Man waters. J. mar. biol. Ass., U.K., Vol. 33, pp. 97–122.CrossRefGoogle Scholar
Brook, G., 1885. Preliminary reports on the food of fishes. Rep. Fishery Bd Scotl., No. 4, App. F, pp. 134–47.Google Scholar
Brown, W. C. & Cheng, C., 1946. Investigations into the food of the cod (Gadus callarias L.) off Bear Island, and of the cod and haddock (Gadus aeglefinus L.) off Iceland and the Murman coast. Bull. mar. Ecol., Vol. 3, pp. 37–71.Google Scholar
Bull, H. O., 1928. The relationship between the state of maturity and the chemical composition of the whiting, Gadus merlangus L. J. mar. biol. Ass., U.K., Vol. 15, pp. 207–18.CrossRefGoogle Scholar
Bumpus, H. C., 1898. The breeding of animals at Woods Hole during the month of March, 1898. Science, N.Y., N.S., Vol. 7, pp. 485–7.CrossRefGoogle Scholar
Carr, A. M., 1909. The food and condition of fish obtained from north east coast. Rep. scient. Invest. Northumb. Sea Fish. Cornm., 1909, pp. 41–50.Google Scholar
Collett, R., 1880. Meddelelser om Norges fiske i aarene 1875–78. Fork. VidenskSelsk. Krist., 1879, No. I, 107 pp.Google Scholar
Corbeil, H.-E., 1953. Analyse du contenu stomacal de la Morue Gadus callarias). Rapp. Stn Biol. mar. Grand-Rivière, Quebec, 1952, App. I, pp. 13–18.Google Scholar
Corbeil, H.-E.,1954. Analyse du contenu stomacal de la Morue (Gadus callarias). Rapp. Stn Biol. mar. Grand-Riviere, Quebec, 1953, App. Ill, pp. 48–59.Google Scholar
Couch, J., 1864. A History of the Fishes of the British Islands. Vol. III. London: Groomsbridge.Google Scholar
Damas, D., 1909. Contribution à la biologie des Gadides. Rapp. P.-v. Réun. Cons. perm. int. Explor. Mer, Vol. 10, B. 3, pp. 1–277.Google Scholar
Day, F., 1880–84. The Fishes of Great Britain and Ireland. London: Williams and Norgate.Google Scholar
Desbrosses, P., 1945. Le Merlan (Gadus merlangus L.) de la côte française de l'Atlantique. Revue Trav. Inst. Pêch. marit., T. 13, pp. 177–95.Google Scholar
Desbrosses, P., 1948. Le Merlan (Gadus merlangus L.) de la côte francaise de l'Atlantique (deuxième partie). Revue Trav. Inst. Pêch. marit., T. 14, pp. 71–104.Google Scholar
Ehrenbaum, E., 1909. Eier und larven von fischen des Nordisches Plankton. Nord. Plarikt., Zool. Teil, Bd. 1, No. 1, 413 pp.Google Scholar
Einarsson, H., 1945. Euphausiacea: I. Northern Atlantic species. Dana Rep., No. 27, 185 pp.Google Scholar
Elkin, H. W., 1955. Whiting (Gadus merlangus L.) in Irish waters. Scient. Proc. R. Dubl. Soc, N.S., Vol. 27, No. 2, pp. 17–30.Google Scholar
Fulton, T. W., 1901. On the rate of growth of the cod, haddock, whiting and Norway-pout. Rep. Fishery Bd Scotl., No. 19, Pt. 3, p. 214.Google Scholar
Fulton, T. W., 1902. North Sea Investigations. Rep. Fishery Bd Scotl., No. 20, Pt. 3, p. 73.Google Scholar
Fulton, T. W., 1904. The rate of growth of fishes. Rep. Fishery Bd Scotl., No. 22, pp.141–241.Google Scholar
Gokhale, S. V., 1957. Seasonal histological changes in the gonads of the whiting (Gadus merlangus L.) and the Norway-pout (Gadus esmarki Nilsson). Indian J. Fish., Vol. 4, pp. 92–112.Google Scholar
Graham, M., 1924. The annual cycle in the life of cod in the North Sea. Fishery Invest., Lond., Ser. 2, Vol. 6, No. 6, 77 pp.Google Scholar
Graham, M., 1956. Sea Fisheries —Their Investigation in the United Kingdom. London: E. Arnold.Google Scholar
Hartley, P. H. T., 1940. The Saltash tucknet fishery and the ecology of some estuarine fishes. J. mar. biol. Ass. U.K., Vol. 24, pp. 1–68.CrossRefGoogle Scholar
Hartley, P. H. T., 1948. Food and feeding relationships in a community of freshwater fishes. J. Anim. Ecol., Vol. 17, pp. 1–14.CrossRefGoogle Scholar
Herdman, W. A.et al., 1893. Food of fishes. Rep. Lanes. Sea-Fish. Labs, 1892, p. 10.Google Scholar
Hertling, H., 1938. Untersuchungen über die Ernährung von Meeresfischen. II. Quantitativ Nahrungsuntersuchungen an Schellfischen (Gadus aeglefinus), Wittlingen (G. merlangus) und Dorschen (G. morrhua) aus der Nordsee unter besonderer Berücksichtigung des Wärmewertes der Nahrung. Ber. dt. Kommn Meeresforsch., N.F., Bd. 9, pp. 274–317.Google Scholar
Hickling, C. F., 1927. The natural history of the hake. Pt. I. Fishery Invest., Lond., Ser. 2, Vol. 10, No. 2.Google Scholar
Hickling, C. F., 1930. The natural history of the hake. Pt. 3. Fishery Invest., Lond., Ser. 2, Vol. 12, No. 1.Google Scholar
Hickling, C. F.,1934. The Hake and the Hake Fishery. London: E. Arnold.Google Scholar
Homans, R. E. S. & Needler, A. W. H., 1944. Food of the haddock. Proc. Trans. Nova Scotian Inst. Sci., Vol. 21, 35 pp.Google Scholar
Hynes, H. B. N., 1950. The food of freshwater sticklebacks (Gasterosteus aculeatus and Pygosteus pungitius), with a review of methods used in studies of food of fishes. J. Anim. Ecol., Vol. 19, pp. 36–68.CrossRefGoogle Scholar
Idelson, M. S., 1929. On the nourishment of food-fishes in the Barents Sea. Russk. gidrobiol. Zh., Vol. 7, pp. 269–285. (English summary.)Google Scholar
Johnstone, J., 1910. The fishes of Cheshire and Liverpool Bay. In The Vertebrate Fauna of Cheshire, ed. Coward, T. A.. London: Witherby and Co.Google Scholar
Johnstone, J. & Woodcock, H. M., 1906. On a myxosporidean infection of Gadus esmarkii, with a note on the identification of the parasite. Rep. Lanes. Sea-Fish. Labs, Vol. 15, pp. 204–8.Google Scholar
Jones, N. S., 1951. The bottom-fauna off the south of the Isle of Man. J. Anim. Ecol., Vol. 20, pp. 132–44.CrossRefGoogle Scholar
Jones, N. S., 1952. The Bottom-fauna and the food of flatfish off the Cumberland coast. J. Anim. Ecol., Vol. 21, pp. 182–205.CrossRefGoogle Scholar
Jones, N. S., 1956. The fauna and biomass of a muddy sand deposit off Port Erin, I.o.M. J. Anim. Ecol., Vol. 25, pp. 217–52.CrossRefGoogle Scholar
Jones, R., 1954. The food of the whiting, and a comparison with that of the haddock. Rep. Fishery Bd Scotl, 1954, No. 2, 34 pp.Google Scholar
Kennedy, M., 1954. The Sea-Angler's Fishes. London: Hutchinson.Google Scholar
Lebour, M. V., 1918. The food of post-larval fish. J. mar. biol. Ass. U.K., Vol. 11, pp. 433–69–CrossRefGoogle Scholar
Lebour, M. V., 1919a. Feeding habits of some young fish. J. mar. biol. Ass. U.K., Vol. 12, pp. 9–12.CrossRefGoogle Scholar
Lebour, M. V., 1919b. The food of post-larval fish. No. 11 (1918). J. mar. biol. Ass. U.K., Vol. 12, pp. 22–47.CrossRefGoogle Scholar
Lebour, M. V., 1920. The food of young fish. No. ill (1919). J. mar. biol. Ass. U.K., Vol. 12, pp. 261–324.CrossRefGoogle Scholar
Le Cren, E. D., 1951. The length-weight relationship and seasonal cycle in the gonad-weight and condition in the perch (Perca fluviatilis). J. Anim. Ecol., Vol. 20, pp. 201–19.CrossRefGoogle Scholar
Longhurst, A. R., 1957. The food of the demersal fish of a West African estuary. J. Anim. Ecol., Vol. 26, pp. 369–87.CrossRefGoogle Scholar
Macdonald, R., 1927. Food and habits of Meganyctiphanes norvegica. J. mar. biol. Ass. U.K., Vol. 14, pp. 753–84.CrossRefGoogle Scholar
Mansueti, R., 1963. Symbiotic behaviour between small fishes and jellyfishes, with new data on that between the stromateid Peprilus alepidotus, and the scypho-medusa, Chrysaora quinquecirrha. Copeia, 1963, pp. 40–80.CrossRefGoogle Scholar
Marine Biological Association, 1957. Plymouth Marine Fauna, 3rd ed.Google Scholar
Matthews, D., 1887. Food of the whiting. Rep. Fishery Bd Scotl., No. 5, P. 317.Google Scholar
Menon, M. D., 1950. Bionomics of the poor cod (Gadus minutus L.) in the Plymouth area. J. mar. biol. Ass. U.K., Vol. 29, pp. 185–229.CrossRefGoogle Scholar
Muir, Evans H., 1935. The Brain of Gadus, with special reference to the Medulla Oblongata and its variations according to the feeding habits of the different Gadidae—I. Proc. R. Soc, B, Vol. 117, pp. 367–99.Google Scholar
Muir, Evans H., 1940. Brain and Body of Fish —A Study of Brain Pattern in relation to Hunting and Feeding in Fish. London: The Technical Press.Google Scholar
Nagabhushanam, A. K., 1959. Notes on Argentina sphyraena L. (Teleostei-Salmonoidea) in Manx waters. Rep. mar. biol. Stn Port Erin, Vol. 71, pp. 53–8.Google Scholar
Nagabhushanam, A. K., 1964. On the biology of the whiting, Gadus merlangus, in Manx waters. J. mar. biol. Ass. U.K., Vol. 44, pp. 177–202.CrossRefGoogle Scholar
Naylor, E., 1955. The ecological distribution of the British species of Idotea (Isopoda). J. Anim. Ecol, Vol. 24, pp. 255–69.CrossRefGoogle Scholar
Nordgaard, O., 1902. Oplysninger om seiens vekst og aate. Bergens Mus. Arb., 1901, No. 3, 21 pp.Google Scholar
Ogilvie, H. S., 1927. Observations on the food of postlarval herring from the Scottish coast. Sci. Invest., Fishery Bd Scotl., 1927, No. 1.Google Scholar
Ogilvie, H. S., 1938. Food of postlarval haddock, with reference to fluctuations in annual broods. Rapp. P.-v. Reun. Cons. perm. int. Explor. Mer, Vol. 107, Pt. 3, App., P. 57.Google Scholar
Poulsen, E. M., 1928. The haddock in the Belt Sea and the Western Baltic during the years 1926–28. Rep. Dan. biol. Stn, Vol. 34, Pt. 6, pp. 99–125.Google Scholar
Poulsen, E. M., 1931. Biological investigations upon the cod in Danish waters. Meddr Kommn Havunders., Kbh., Ser. Fisk., Bd. 9, No. 1, pp. 1–148.Google Scholar
Poulsen, Ove, 1918. Plankton and the other biological investigations in the sea around the Faroes in 1913. Meddr Kommn Havunders., Kbh., Ser. Plankt., Bd. 1,. No. 13Google Scholar
Ritchie, A., 1932. The food and feeding habits of the haddock. Rapp. P.-v. Réun.Cons. perm. int. Explor. Mer, Vol. 80, pp. 16–19.Google Scholar
Ritchie, A., 1947. The food and feeding habits of the haddock (Gadus aeglefinus) in Scottish waters. Sci. Invest. Fishery Bd Scotl., 1937, No. 2, 94 pp.Google Scholar
Russell, E. S., 1922. Report on market measurements in relation to the English Cod fishery during the years 1912–14. Fish. Invest., Lond., Ser. 2, Vol. 5, No. 1.Google Scholar
Saemundsson, B., 1908. Oversigt over Islands Fiske. Skr. Kommn Havunders., Kbh., No. 5, p. 54.Google Scholar
Saemundsson, B., 1926. Fiskarnir (Pisces Islandiae). Reykjavik.Google Scholar
Saemundsson, B., 1937. FáséSòur fiskur. N´ttúrufrœòingurinn, 1937, p. 120.Google Scholar
Saemundsson, B., 1949. Marine Pisces. Zoology of Iceland, Vol. 4, Pt. 72, 150 pp.Google Scholar
Schmidt, J., 1904. FiskeriundersØgelser ved Island og FaerØerne i Sommeren 1903. Skr. Kommn Havunders., Kbh., No. 1, p. 83.Google Scholar
Schmidt, J., 1909. The distribution of the pelagic fry and spawning regions of the gadoids in the North Atlantic from Iceland to Spain. (Based chiefly on Danish investigations.) Rapp. P.-v. Réun. Cons. perm. int. Explor. Mer, Vol. 10, pp. 1–229.Google Scholar
Scott, T., 1902. Observations on the food of fishes. Sci. Invest., Fishery Bd Scotl., Vol. 20 (1901), p. 468.Google Scholar
Scott, T., 1903. Some further observations on the food of fishes, with a note on the food observed in the stomach of a common porpoise. Sci. Invest., Fishery Bd Scotl., Vol. 21 (1902), p. 218.Google Scholar
Slinn, D. J., 1958. Mytilus epizootic upon Lerneocera. Rep. mar. biol. Stn Port Erin, No. 70 (1957), PP. 23–26.Google Scholar
Smitt, F. A., 1892. A History of Scandinavian Fishes, 2nd ed. Stockholm: P. A. Norsted and Soner.Google Scholar
Sproston, N. G. & Hartley, P. H. T., 1941. The ecology of some parasitic copepods of gadoids and other fishes. J. mar. biol. Ass. U.K., Vol. 25, pp. 361–92.CrossRefGoogle Scholar
Steven, G. A., 1930. Bottom-fauna and the food of fishes. J. mar. biol. Ass. U.K., Vol. 26, pp. 677–705.CrossRefGoogle Scholar
Steven, G. A., 1949. Contributions to the biology of the mackerel (Scomber scombrus L.). II. A study of the fishery in the south-west of England, with special reference to the spawning, feeding and ‘fishermen's signs’. J. mar. biol. Ass. U.K., Vol. 28, pp. 555–81.CrossRefGoogle Scholar
Kow, Tham Ah, 1950. Food and feeding relationships of the fishes of the Singapore Straits. Fishery Publs colon. Off., Vol. 1, pp. 1–35.Google Scholar
Thompson, H., 1926. Preliminary report on Iceland haddock. Rapp. P.-v. Reun. Cons. int. perm. Explor. Mer, Vol. 39, pp. 149–51.Google Scholar
Thompson, H.,1943. A biological and economic study of cod (Gadus callarias L.) in the Newfoundland area. Res. Bull. Div. Fish. Res. Newfoundland, No. 14.Google Scholar
Todd, R. A., 1905. Report on the food of fishes collected during 1903. Rep. N. Sea Fish. Invest. Comm., Vol. I (South Area), 1902–3, pp. 229–62.Google Scholar
Todd, R. A., 1907. Second report on the food of fishes (North Sea, 1904–5). Rep. N. Sea Fish. Invest. Comm., Vol. 2 (South Area), Pt. I, 1904–5, pp. 53–160.Google Scholar
Trout, G. C., 1957. The Bear Island Cod migrations and movements. Fish. Invest. Lond., Ser. 2, Vol. 21, No. 6.Google Scholar
Wiborg, K. F., 1948a. Cod larvae and food organisms. FiskDir. Skr., Ser. HavundersØk., Bd. 9, No. 3.Google Scholar
Wiborg, K. F., 1948b. Some observations on the food of cod (Gadus callarias) of O-II group from deep waters and the littoral zone in Northern Norway, and deep water at Spitzbergen. FiskDir. Skr., Ser. HavundersØk, Bd. 9, No. 4.Google Scholar
Williamson, D. I., 1956. The plankton in the Irish Sea—1951–52. Bull. mar. Ecol., Vol. 4, pp. 87–114.Google Scholar
Yonge, C. M., 1949. The Sea Shore. London: Collins.Google Scholar
Zatsepin, V. J. & Petrova, N. S., 1939. The feeding of the cod in the south part of the Barents Sea. Trans. Knipovich polar scient. Inst. Sea-Fish. Oceanogr., Vol. 5. (English summary.)Google Scholar
Zenkevich, L., Brotsky, V. A. & Dektereva, A., 1931. Fish-food of the Barents Sea (Pt. II). Rep. oceanogr. Inst. Moscow, Session I, No. 4 (1931), pp. 1–60. (English summary.)Google Scholar