Hostname: page-component-586b7cd67f-r5fsc Total loading time: 0 Render date: 2024-11-23T22:25:01.425Z Has data issue: false hasContentIssue false

Variations in the Amount of Macroplankton by Day and Night

Published online by Cambridge University Press:  11 May 2009

Extract

1. Twenty oblique hauls of a stramin ring-trawl, diameter of mouth 5 feet, were made during a period of 48 hours off Liverpool, Nova Scotia, i n May, 1932.

2. The common species were Thysanoëssa mschii, Th. inermis, Sagilta elegans, Calanus finmarchicus and C. hyperboreus.

3. All of the above occurred in the collections made during the night n i larger numbers than in those in the daytime. No such discrepancy appeared in the case of the Fish Ova.

4. The discrepancy is held to be due in each case to a proportion of the population sinking to depths greater than could be sampled by the net.

Type
Research Article
Copyright
Copyright © Marine Biological Association of the United Kingdom 1934

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

LITERATURE CONSULTED

Bigelow, H. B. 1926. Plankton of the Offshore Waters of the Gulf of Maine. 1924. Bull. Bureau of Fisheries, Vol. XL, Pt. II (Document No. 968), pp. 1509.Google Scholar
Fisher, R. A. 1930. Statistical Methods for Research Workers. London.Google Scholar
Frost, W. E. 1932. Observations on the Reproduction of Nyctiphanes couchii (Bell) and Meganyctiphanes norvegica (Sars) off the South Coast of Ireland. Proc. Roy. Irish Acad., Vol. XL, Section B, No. 14, pp. 194232.Google Scholar
Gardiner, A. C. 1931. The Validity of Single Vertical Hauls in the Study of the Distribution of the Plankton. Journ. Mar. Biol. Assoc., N.S., Vol. XVII, No. 2, pp. 449472.CrossRefGoogle Scholar
Gardiner, A. C. 1933. Vertical Distribution in Calanus finmarchicus. Journ. Mar. Biol. Assoc., N.S., Vol. XVIII, No. 2, pp. 575610.CrossRefGoogle Scholar
Gardiner, A. C., and Michael, Graham. 1925. The Working Error of Petersen's Young Fish Trawl. Fishery Investigations (England), Series II, Vol. VIII, No. 3, pp. 18.Google Scholar
Hickling, C. F. 1925. Notes on Euphausiids. Journ. Mar. Biol. Assoc., N.S., Vol. XIII, No 3, pp 735745.CrossRefGoogle Scholar
Holt, E. W. L., and Tattersall., W. M. 1905. Schizopodous Crustacea from the North-East Atlantic Slopes. Ann. Rep. Fish. Ireland, 1902–03, Pt. II, App. IV.Google Scholar
Lebour, Marie V. 1924. The Euphausiidse in the Neighbourhood of Plymouth and their Importance as Herring Food. Journ. Mar. Biol. Assoc., N.S., Vol. XIII, No. 2, pp. 402432.CrossRefGoogle Scholar
Macdonald, Roderick. 1927. Food and Habits of Meganyctiphanes norvegica. Journ. Mar. Biol. Assoc., N.S., Vol. XIV, No. 3, pp. 753784.CrossRefGoogle Scholar
Marshall, S. M. 1933. On the Biology of Calanus finmarchicus, II. Journ. Mar. Biol. Assoc., N.S., Vol. XIX, No. 1, pp. 111138.CrossRefGoogle Scholar
Otterstroem, A. 1910. Beobachtungen über die Senkrechten Wanderungen des Mysisbestandes. Medd. fra Komm. for Havundersogelser, Serie Plankton, Bind I, Nr. 9, pp. 110.Google Scholar
Russell, F. S. 1927. The Vertical Distribution of Marine Macroplankton. (V.) Journ. Mar. Biol. Assoc., N.S., Vol. XIV, No. 3, pp. 557608.CrossRefGoogle Scholar
Russell, F. S. 1930. The Vertical Distribution of Marine Macro-plankton. IX. Journ. Mar. Biol. Assoc., N.S., Vol. XVI, No. 2. pp. 639670.CrossRefGoogle Scholar
Russell, F. S. 1931. The Vertical Distribution of Marine Macro-plankton. X. Journ. Mar. Biol. Assoc., N.S., Vol. XVII, No. 2, pp. 391414.CrossRefGoogle Scholar
Russell, F. S. 1933. On the Biology of Sagitta. IV. Journ. Mar. Biol. Assoc., N.S., Vol. XVIII, No. 2, pp. 559574.CrossRefGoogle Scholar
Ruud, Johan. T. 1932. On the Biology of Southern Buphausiidæ. Hvalrådets Skrifter, Nr. 2.Google Scholar
Southern, R., and Gardiner, A. C. 1926. The Seasonal Distribution of the Crustacea of the Plankton in Lough Derg and the River Shannon. Fisheries, Ireland, Sci. Invest., 1926, I, pp. 1170.Google Scholar