1998
DOI: 10.2989/025776198784126647
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Differential feeding by sardine Sardinops Sagax and anchovy Engraulis capensis recruits in mixed shoals

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Cited by 21 publications
(8 citation statements)
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References 5 publications
(11 reference statements)
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“…Co-schooling fish typically feed on similar prey items (e.g. Louw et al, 1998). The general relation ships observed here show that the intraspecific dietary overlap (between size classes of one species) is lower than the interspecific overlap (between species).…”
Section: Ontogenetic Diet Shiftsmentioning
confidence: 56%
See 1 more Smart Citation
“…Co-schooling fish typically feed on similar prey items (e.g. Louw et al, 1998). The general relation ships observed here show that the intraspecific dietary overlap (between size classes of one species) is lower than the interspecific overlap (between species).…”
Section: Ontogenetic Diet Shiftsmentioning
confidence: 56%
“…regime shifts; out-of-phase fluctuations of these genera have been documented over many centuries in the product ive coastal waters of the Pacific and Atlantic oceans (Baumgartner et al, 1992). Both species are size-selective planktivores, with sardine preferring smaller particles than anchovy (Louw et al, 1998). Alheit and Niquen (2004) report that when large copepods are abundant, anchovies dominate over sardines, such as exempli fied during the anchovy regime of the 1960s in the Humboldt Current off South America.…”
Section: Introductionmentioning
confidence: 99%
“…Particulate feeding by anchovy is possible even under low-light conditions (O'Connell 1972) and shows marked periodicity with peaks at dawn and dusk (James 1987). Filter feeding is not light dependent and does not show regular periodicity (van der Lingen 1998, Emmett et al 2005.…”
Section: Bioenergetic Modeling Of Sardine and Anchovy Growthmentioning
confidence: 99%
“…Selection of individual prey items by particulate feeding is energetically inefficient in comparison to filter feeding. When presented with similar prey assemblages in the natural environment, items consumed by sardine are distinctly smaller than those consumed by anchovy (Louw et al 1998). An understanding of how the biomass size spectra of phytoplankton and zooplankton assemblages vary with respect to environmental conditions may elucidate the factors influencing production and growth of sardine and anchovy populations.…”
Section: Introductionmentioning
confidence: 99%
“…Long-term time series of the abundance of crustacean zooplankton in different size categories are presented for the west coast of South Africa, where anchovy and sardine recruit to the pelagic fishery each year (Crawford et al, 1987). These fish are size-selective planktivores, with sardine preferring smaller particles than anchovy (van der Lingen, 1994;Louw et al, 1998). Two possible causative mechanisms for the observed long-term trends in zooplankton abundance and community size structure, from both a bottom-up and top-down perspective, are explored.…”
Section: Introductionmentioning
confidence: 99%