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Report on the Spawning of the Common Sole (Solea uulgaris) in the Aquarium of the Marine Biological Association's Laboratory at Plymouth, during April and May, 1895

Published online by Cambridge University Press:  11 May 2009

Gerard W. Butler
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Extract

From April 3rd to May 17th of this year I occupied a table at the Plymouth Laboratory, to study the embryology of Teleosteans. As some of the fish in the flat-fish tank were known to be spawning, a net was fitted to the overflow channel into the adjoining tank. By the kind permission of the Director I examined this net daily, and, as a rule, a number of times a day, so that I obtained a pretty complete record of the spawning of the fish in this tank during the period mentioned.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 4 , Issue 1 , May 1895 , pp. 3 - 9
Copyright
Copyright © Marine Biological Association of the United Kingdom 1895

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References

page 3 note * Fertilized eggs of the Plaice (Pl. platessa) 2 mm. in diameter were obtained on April 2nd, 4th, 7th, 12th, and some of these hatched out in 10–12 days. Eggs about 1·5 mm. in diameter, apparently those of the “Merrysole” (Pl. microcephalus) were obtained unfertilized on April 19th, and fertilized on the nights of May 5th, 8th, and 10th. Some of these hatched out on the 5th day, the water temperature being 13°C. Smaller eggs, also without oil globule, varying in diameter from ·98 mm. to 1·15 mm., and thus answering to the unfertilized eggs of the flounder obtained from different fish, but possibly including eggs of some other flat-fish besides Pl. flesus, were obtained repeatedly during April and first half of May, but only one or two fertilized eggs were seen. Attempts to artificially fertilize flounder eggs resulted in nothing beyond the irregular segmentation of some of the eggs. Probably this was due to the only male available not being in proper condition.

page 5 note * Holt, E. W. L.. “North Sea Investigations” (contd.), Journal of Mar. Biol. Ass. of U. K., vol. ii. (N.S.), p. 371.Google Scholar

page 6 note * Brook, G., “The Formation of the Germinal Layers in Teleostei,” Trans. Roy. Spc. of Edinburgh, vol. xxxiii. part i. (for 1885–6), publ. 1887.Google Scholar