caa a22 4500 397550685 CHVBK 20180308164749.0 cr unu---uuuuu 161202e199610 xx s 000 0 eng 10.1006/jmsc.1996.0105 doi (NATIONALLICENCE)oxford-10.1006/jmsc.1996.0105 The diets of the chaetognaths Sagitta enflata, S. serratodentata atlantica and S. bipunctata at different seasons in Eastern Mediterranean coastal waters [Elektronische Daten] [G. Kehayias, J. Lykakis, N. Fragopoulu] The chaetognaths Sagitta enflata, S. serratodentata atlantica and S. bipunctata were caught in six sampling periods from September 1988 until July 1989 during both day and night in Kisamos Gulf (Cretan Sea, Eastern Mediterranean) in the upper layers (0-50 m). Gut content analysis showed that copepods were the predominant food organisms in the diet of these three predators. Positive electivity indices were found for Corycaeus spp. and Oncaea spp. but negative for Clausocalanus spp. copepodites and Clausocalanus furcatus females, which were the most numerous among copepods. Cannibalism was observed mainly in S. bipunctata while S. serratodentata atlantica was found to be less cannibalistic. The size of the predator was reflected in the size of prey. Feeding intensity indicated by Food containing ratio (FCR) and Number of prey per chaetognath (NPC) increased just before the reproductive period of each chaetognath species. Differences between day and night feeding were only found in S. enflata. © 1996 International council for the Exploration of the Sea Articles nationallicence feeding habits nationallicence diets nationallicence Sagitta enflata nationallicence Sagitta serratodentata atlantica nationallicence Sagitta bipunctata nationallicence Eastern Mediterranean nationallicence Kehayias G. Section of Animal Biology, Department of Biology, University of Patra, 26500, Patra, Greece aut Lykakis J. Section of Animal Biology, Department of Biology, University of Patra, 26500, Patra, Greece aut Fragopoulu N. Section of Animal Biology, Department of Biology, University of Patra, 26500, Patra, Greece aut ICES Journal of Marine Science Oxford University Press 53/5(1996-10), 837-846 1054-3139 53:5<837 1996 53 icesjms https://doi.org/10.1006/jmsc.1996.0105 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1006/jmsc.1996.0105 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kehayias G. Section of Animal Biology, Department of Biology, University of Patra, 26500, Patra, Greece aut NATIONALLICENCE 700 1- Lykakis J. Section of Animal Biology, Department of Biology, University of Patra, 26500, Patra, Greece aut NATIONALLICENCE 700 1- Fragopoulu N. Section of Animal Biology, Department of Biology, University of Patra, 26500, Patra, Greece aut NATIONALLICENCE 773 0- ICES Journal of Marine Science Oxford University Press 53/5(1996-10), 837-846 1054-3139 53:5<837 1996 53 icesjms Metadata rights reserved CC BY-NC-4.0 http://creativecommons.org/licenses/by-nc/4.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-oxford