Gastric evacuation in plaice, <i>Pleuronectes platessa</i> L.: effects of temperature and fish size

Jobling, Malcolm

doi:10.1111/j.1095-8649.1980.tb02786.x

Cited by 51 publications

(31 citation statements)

References 19 publications

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“…Edwards, 1971;Kiorboe, 1978;Persson, 1979;Jobling, 1980). Nevertheless, the differential digestibility of the pelleted food and of the polychaetes must also be considered in this analysis.…”

Section: Gastric Evacuationmentioning

confidence: 99%

Gastric evacuation and feeding in the gilthead sea bream reared under semi-intensive conditions

1996

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Gastric evacuation rates of the gilthead sea bream, Sparus aurata, fed with commercial pelleted food and polychaetes (Nereis diversicolor) were determined under experimental conditions. The estimated gastric evacuation rate for pelleted food was 7.97% h -1, with a total time of digestion of approximately 9 h. The respective values for the natural food were 6.24% h -1, with a total digestion time of approximately 12 h. The daily consumption of fish reared in earth ponds in a semi-intensive aquaculture facility was estimated through 24 h cycles performed between April and August. The daily consumption varied from 18.58 to 31.98 mg g-1. There was a constant increase in the average daily consumption per individual of 1.8-4.6 g (dry weight). During these cycles, samples of stomachs were taken and the contents preserved for further observation. The feeding behaviour of the reared fish was compared with a fish sample caught in the Ria Formosa lagoon. No common species were found between samples. A total of 38 prey were identified, which suggests that the gilthead sea bream is a non-specific predator. Despite the high abundance of natural prey in the ponds, the dependence of sea bream on pelleted food was high.

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Section: Gastric Evacuationmentioning

confidence: 99%

Gastric evacuation and feeding in the gilthead sea bream reared under semi-intensive conditions

1996

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“…The average size of the fish, under the different feeding regimes was calculated from the data presented in Table I. Using these estimates of fish size at various times throughout the experimental period, the predicted levels of food consumption were calculated from gastric evacuation data given by Jobling (1980b). The results, shown in Fig.…”

Section: Feeding and Growth Under Different Feeding Regimesmentioning

confidence: 99%

Some observations on the effects of feeding frequency on the food intake and growth of plaice, Pleuronectes platessa L.

Jobling

1982

Journal of Fish Biology

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The segregation of plaice, Pleuronectes plutessu, into groups of uniform size can be used to reduce the formation of size hierarchies, even under conditions of limited food supply. When access to food was limited the fish responded by becoming hyperphagic. This resulted in an increase in growth rate following an initial growth check. However, even after hyperphagic adaptation, intermittently fed fish grew at slower rates than those allowed more frequent access to food. Hyperphagia was accompanied by an increase in relative stomach weight and gastric capacity but did not affect fat storage and proximate chemical composition.

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“…Prior to each trial a baseline equilibrium was obtained when the readings of the outlet probes matched the readings of the inlet probes and these two probes recorded stable, similar rcadings for at least 2 h. Flatfish had been placed into staging tanks identical to the experimental respirometers, for 48 h, to allow the fish to acclimate to this size tank and to provide time for the fish to empty their gastrointestinal tract. This follows the recommendations of Jobling (1980) for respirometry studies.…”

Section: Methodsmentioning

confidence: 94%

Comparison of routine oxygen consumption rates of three species of pleuronectids at three temperatures

MacIsaac

Goff

1997

J Appl Ichthyol

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The oxygen consumption rates of three species of pleuronectids, the yellowtail flounder, Pleuronectes ferrugineus (Storer), the winter flounder, Pleuronectes americanus (Walbaurn), and the American plaice, Hippoglossoides platessoides (Fabriciusj, were examined under simulated, land-based, aquaculture conditions. Routine oxygen consumption (ROC) rates for groups of each species were measured simultaneously using single-pass, flowthrough respirometry . This study was conducted over three seasons at temperatures from 2'C to 14°C. An analysis of variance identified a significant interaction betwccn temperature and species on the oxygen consumption rates of these flounder. The analysis indicated that at each temperature, ROC rates were significantly different among the three species (P < 0.05).A subsequent test of each species' ROC rate across the three temperatures indicated that both the yellowtail flounder and the winter flounder had significantly different ROC rates at each temperature experiment (P < 0.05). The ROC of yellowtail and winter flounder responded similarly to changes in cxpcrimental temperatures.

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Gastric evacuation in plaice, Pleuronectes platessa L.: effects of temperature and fish size

Cited by 51 publications

References 19 publications

Gastric evacuation and feeding in the gilthead sea bream reared under semi-intensive conditions

Gastric evacuation and feeding in the gilthead sea bream reared under semi-intensive conditions

Some observations on the effects of feeding frequency on the food intake and growth of plaice, Pleuronectes platessa L.

Comparison of routine oxygen consumption rates of three species of pleuronectids at three temperatures

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