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Dam, H.G. (1986). Short-term feeding of Temora longicornis Müller in the laboratory and the field. Journal of Experimental Marine Biology and Ecology. 99(2):149-161. figs. 1-2, tabs. 1-3. (24.vii.1986).
83405
10.1016/0022-0981(86)90234-0 [view]
Dam, H.G.
1986
Short-term feeding of Temora longicornis Müller in the laboratory and the field.
Journal of Experimental Marine Biology and Ecology
99(2):149-161. figs. 1-2, tabs. 1-3. (24.vii.1986)
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Available in Wilson Copepod Library (non-digital)
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Short-term feeding (min to h) of the copepod Temora longicomis (Müller) was investigated in the laboratory and in the field by monitoring the increase in gut fluorescence of adult females. Laboratory feeding studies using the diatoms Thalassiosira pseudonana (Hust.), T. weissflogii (Hust.) and Ditylumbrightwellii (West) showed that ingestion rates increased with increased food concentration and cell size. The maximum ingestion rate was 9.5 ng chl. equiv. female −1. h −1 on a diet D. brightwellii. Clearance rates decreased with increased food concentration and decreased cell size. Maximum clearance rate was 1.9 ml. female−1·h−1 also on a diet of D. brightwellii. On two of three occasions, ingestion and clearance rates in the field were twice as high at night as during the day. Night rates were similar to laboratory rates in the chlorophyll range found in the field. Diel differences in feeding activity in the field appeared to have been behaviorally induced rather than being related to vertical migration of individuals into food rich layers.
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