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An Account of the Researches on Races of Herrings Carried out by the Marine Biological Association at Plymouth, 1914–15

Published online by Cambridge University Press:  11 May 2009

J. H. Orton
Affiliation:
Naturalist at the Plymouth Laboratory.

Extract

[The following Tables record the measurement and enumeration of a number of characters in certain samples of Herrings taken in the neighbourhood of Plymouth. The work was carried out as part of a general scheme for studying the question of the existence of local races of herrings around the British Coasts, which was organised by the Board of Agriculture and Fisheries. In consequence of the war there is no immediate prospect of the figures being analysed and compared with similar figures relating to fish obtained in other localities. It has therefore been thought advisable to place them on record as they stand, so that they may be available for other workers at any time. The short explanatory statement of the methods employed was prepared by Dr. Orton, who had charge of most of the work, to accompany the figures when they were sent to the Board of Agriculture and Fisheries, and was not written by him with a view to publication. The drawings have been made by Mrs. Sexton.—E. J. Allen.]

Type
Research Article
Copyright
Copyright © Marine Biological Association of the United Kingdom 1916

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References

* Measurements are all given in centimetres.

* See p. 83.

Each fish was weighed singly to the nearest gram on an ordinary balance in our work.

The scales were forwarded to the Board for examination. The pyloric cæca of eac fish were also preserved (see p. 86).

* The figures given in Tables II, III, and IV denote the number of vertebræ with perfect and imperfect hæmal arches. For details see pp. 80–82.

This sign in all cases indicates that no lateral processes are present in the vertebræ immediately preceding the 1st vertebra with complete hæmal arch or the most anterior incomplete arch denoted in the records. The processes in these cases have been cleaned away.

* This sign on the measurements (Columns 1 to 9) indicates that the character is slightly abnormal in some way or that the part measured is slightly damaged. In columns 17 and 18 the asterisks refer to the following:—