Notes on feeding of Chaetognatha in Guanabara Bay, Brazil

@article{Marazzo1997NotesOF,
  title={Notes on feeding of Chaetognatha in Guanabara Bay, Brazil},
  author={Andrea Marazzo and Cleiton F Machado and Catarina Ramis Nogueira},
  journal={Journal of Plankton Research},
  year={1997},
  volume={19},
  pages={819-828}
}
A preliminary analysis, by means of the gut content, of the diet of Sagitta friderid and Sagitta enflata occurring in Guanabara Bay was carried out. The samples were collected at different times over a 4 day period in September 1995, during vertical tows with a conical net of 200 um mesh size at a fixed station (30 m depth). In total, 1000 individuals were examined. Copepoda were the numerically dominant group of prey of S.friderici and S.enflata (67.2 and 74.6%, respectively); both species… Expand
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Die 1 feeding of the chaetognath Sagitta enflata in the Zanzibar Channel , western Indian Ocean
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  • Biology
  • Journal of the Marine Biological Association of the United Kingdom
  • 2003
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TLDR
The feeding biology and the vertical migration of Sagitta friderici were examined over 24 h at two stations in the southern Benguela during spring (October) 1987, suggesting that it is able to take advantage of cross-shelf water movement in order to maintain populations in the nearshore waters of the West Coast. Expand
Feeding of the chaetognaths Sagitta elegans and Sagitta setosa at different seasons in Gullmarsfjorden, Sweden
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Feeding was most intensive at night in both species except for S. setosa, which is believed to reflect differences in size and vertical distribution and contribute to the sharp decrease in numbers of S.setosa at that time. Expand
Composition, spatial and temporal variations of Chaetognatha in Guanabara Bay, Brazil
This paper presents the specific composition and distribution of adult chaetognaths in Gua- nabara Bay, Brazil. A comparison has been made between chaetognath and copepod distribution pat- terns.Expand
Daily ration and specific daily ration of the chaetognath Sagitta enflata
Digestion times, obtained directly from laboratory feeding, were used in conjunction with a day/night series of field samples to estimate the daily ration and specific daily ration of Sagitta enflataExpand
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It is concluded that Sagitta left the surface waters during the day primarily in order to avoid visually directed predation and a model for depth control in diel migration is proposed. Expand
Feeding by Chaetognatha : the relation of prey size to predator size in several species
TLDR
Because chaetognaths are probably one of the main sources of predation pressure on the copepod community, both the general form of their prey-size selection and differences in this function between species should have considerable influence on the size structures of lower trophic levels. Expand
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TLDR
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TLDR
Feeding rates for all but the smallest animals are similar to those predicted from respiration data; the smallest individuals consumed more than their estimated no-growth requirements. Expand
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TLDR
The digestive efficiency of a plankton carnivore, Sagitta hispida Conant, which tends to feed infrequently on relatively large food organisms, was determined gravimetrically, which was not affected by the size of the food organism or pre-starvation period. Expand
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TLDR
Diferencas significativas na composicao da dieta dos individuos coletados, enquanto que uma maior diversificacao do alimento, incluindo a pratica do canibalismo, foi observada a partir do estagio I. Expand
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