Distribution of and Feeding by the Copepod Pseudocalanus Under Fast Ice During the Arctic Spring
- 6 June 1986
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 232 (4755) , 1245-1247
- https://doi.org/10.1126/science.232.4755.1245
Abstract
The arctic copepod Pseudocalanus can be highly aggregated in the first few centimeters under landfast ice during spring in concentrations up to 10 6 per cubic meter. Chlorophyll-derived pigments in the water, the abundance of animals, and their gut pigment index show fluctuations that may be tidally related. Short-term grazing experiments performed at -1.7°C, in which ice algae was used as food, yielded feeding rates comparable to the highest known for the genus. Arctic Pseudocalanus seem to feed opportunistically near the ice-water interface, either directly on the attached epontic (under ice) algae or as it erodes from the ice.Keywords
This publication has 12 references indexed in Scilit:
- Effect of daylength and food concentration on in situ diurnal feeding rhythms in Arctic copepodsMarine Ecology Progress Series, 1985
- Comparison of the Feeding Behaviour of Calanus and Pseudocalanus in two Experimentally Manipulated Enclosed EcosystemsJournal of the Marine Biological Association of the United Kingdom, 1982
- Standing crops and species composition of diatoms in sea ice From Robeson Channel to the Gulf of St. LawrenceOphelia, 1980
- Fluorescence analysis of zooplankton gut contents and an investigation of diel feeding patternsJournal of Experimental Marine Biology and Ecology, 1976
- Feeding, Growth and Reproduction of the Marine Planktonic Copepod Pseudo-Calanus Elongatus BoeckJournal of the Marine Biological Association of the United Kingdom, 1976
- Quantitative degradation of chlorophyll by a marine herbivore1Limnology and Oceanography, 1975
- The Zooplankton of Tanquary Fjord, Ellesmere Island, with Special Reference to Calanoid CopepodsJournal of the Fisheries Research Board of Canada, 1967
- Zooplankton from the Arctic Ocean and Adjacent Canadian WatersJournal of the Fisheries Research Board of Canada, 1965
- The Annual Oceanographic Cycle at Igloolik in the Canadian Arctic: II. The PhytoplanktonJournal of the Fisheries Research Board of Canada, 1961
- The Annual Oceanographic Cycle at Igloolik in the Canadian Arctic. 1. The Zooplankton and Physical and Chemical ObservationsJournal of the Fisheries Research Board of Canada, 1959