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Recent Reports of Fishery Authorities

Published online by Cambridge University Press:  11 May 2009

Extract

The Effectof The Closureof Inshore Areas Upon The Sizeand Abundanceof The Food - Fishes Which They Contain.—In the Report under consideration Dr. T. Wemyss Fulton, the Scientific Superintendent of the Scottish Fishery Board, publishes an important Review of the Trawling Experiments of the Garland in the Firth of Forth and St. Andrews Bay in the years 1886–1895. As is well known, these areas have been closed to trawlers during the ten years under consideration. The Board's steamboat Garland has from time to time made experimental hauls with a 25 ft. Beam-trawl along certain fixed lines within the areas, the fish captured being measured and recorded, and the results of the experiments published from year to year in the Reports. After ten year's work, Dr. Fulton now gives a general review of the whole investigation, and indicates the conclusions to which, in his opinion, the results of the experiments seem to point.

Type
Research Article
Copyright
Copyright © Marine Biological Association of the United Kingdom 1897

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References

* “The proportion of the fish present in a given area that may be captured by fishing apparatus is frequently under-estimated. Of several thousands of plaice, marked for future identification and returned living to the closed waters, about 12 per cent, were subsequently recaptured and returned to me within 18 months—and mostly within a few months—of their liberation. They were nearly all retaken in the closed waters by hook; and as there is no reason to suppose that the marked fish were more prone to seize the bait than the fish around them which had not previously been captured, it may be assumed that at least 1 in 9 or 1 in 10 of the plaice living on an area fall victims to the hook of the fisherman. With the beam-trawl the proportion would have been very much greater:— Vide ‘ An Experimental Investigation on the Migrations and Rate of Growth of the Food Fishes,’ Part III., Eleventh Annual Report, p. 176.”

*Vide ‘Observations on the Reproduction, Maturity, and Sexual Relations of the Food-Fishes,’ Part III., Tenth Annual Report, p. 232.”

“Vide ‘The Capture and Destruction of Immature Sea Fishes,’ Part III., ‘The Relation between the size of the Mesh of Trawl Nets and the Fish Captured,’ Part III., Twelfth Annual Report, p. 302.”

vide ‘The Spawning and Spawning-Places of Marine Food-Fishes,’ Part III., Eighth Annual Report, p.257; also Part III., Tenth Annual Report, p. 235”.

*Vide ‘The Distribution of Immature Sea Fish and their Capture by various Modes of Fishing,’ Part III., Eighth Annual Report, p. 166.”

* On this subject compare also Professor G. B. Grassi, “The Reproduction and Metamorphosis of the Common Eel (Anguilla vulgaris).” Proceed. Roy. Soc. London, No. 363, December, 1896. An account of Grassi's observations is given by Cunningham, “The Larva of the Eel,” Journ. Mar. Biol. Assoc., vol. iii. pp. 278–287.

* Proceedings Roy. Soc., vol. lx. No. 363. See also Quart. Journ.Micr. Sci., New Series, vol. xxxix. part 3.