Maximum daily ration of juvenile fish fed on living natural zooplankton

Marmulla, G.; Rösch, Roland

doi:10.1111/j.1095-8649.1990.tb05628.x

Cited by 23 publications

(20 citation statements)

References 19 publications

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“…Yasunaga (1971) and Yoshimatsu and Kitajima (1996) reported a daily ration of 40-60% of the fish body weight as the minimum required to obtain optimal growth results for flatfish and red sea bream. Similar results have been obtained with freshwater fishes (Marmulla and Ro¨sch 1990). In the present work, groups R and A received rations of 35-60% and 58-140% of the body weight, respectively, in the stages prior to metamorphosis.…”

Section: Discussionsupporting

confidence: 91%

Culture of Senegal Sole Larvae without the Need for Rotifers

Villalta

Estévez

2005

Aquacult Int

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Two groups of Senegal sole (Solea senegalensis) larvae were cultured. One used rotifers for the first 10 days after hatching (dph) and enriched Artemia metanauplii from 6 to 30 dph and the other without rotifers, using enriched Artemia metanauplii as the sole food source. The quantity of metanauplii used was the same (group A), twice (group A2) and three times (group A3) the quantity of live prey (in dry weight) of the group fed with rotifers (group R). At the end of the experiment, the growth, in terms of total length and individual dry weight was significantly higher for the larvae on group A2 whilst rotifer fed larvae (R) showed the poorest results. Eye migration was also delayed by approximately 2 days in the group R. No significant differences were found in survival rates. The influence of diet on Senegal sole metamorphosis and its relationship with the size rather than the age of the fish are discussed.

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Section: Discussionsupporting

confidence: 91%

Culture of Senegal Sole Larvae without the Need for Rotifers

Villalta

Estévez

2005

Aquacult Int

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“…The daily ration (g) v. fish body weight follows a course similar to that of Marmulla & Rosch (1990) with increasing fish weight (Fig. 3).…”

Section: Daily Rationmentioning

confidence: 86%

“…Marmulla & Rosch (1990), however, calculated the natural plankton mortality rate directly from the parallel tank without fish. This value includes plankton which would have been eaten in the fish tank and thus results in an overestimation.…”

Section: Daily Rationmentioning

confidence: 99%

Daily ration of juvenile Coregonus lavaretus (L.) fed on living zooplankton

Troschel¹,

Rösch

1991

Journal of Fish Biology

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Juvenile whitefish, Coregonus lavurerus (L.), wet weight 0.04 to 5.2 g, from Lake Constance were kept at 10. 12 and 16" C water temperature, respectively and fed with living zooplankton. The experimental duration lasted 72 to 120 h. Daily rations were defined as the amount of zooplankton remaining subtracted from the amount of zooplankton added after a 24 h interval. The mortality of the zooplankton was determined in parallel experiments without fish. Relative daily ration (zooplankton weight/fish weight) Y. fish weight increased up to a fish dry weight of approximately 0.12 g and then decreased steadily. The maximum daily ration was about 270% of fish body wet weight (wet/wet) corresponding to 75% of body dry weight (dry/dry), respectively. In fishes of a dry weight higher than 0.12 g (wet weight 0.65 g) a significant difference in food intake was found between 12 and 16" C. The specific growth rate ranged from nearly 0 up to 33% per day. No correlation was found between daily ration and specific growth rate.

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“…These high food consumption rates might also occur in the larvae of many other fish species. Indeed, in the larvae and juveniles of five cyprinids and perch, high rates of food consumption ([50% body weight per day) have been found (Marmulla and Rösch 1990).…”

Section: Discussionmentioning

confidence: 99%

Laboratory investigation of daily food intake and gut evacuation in larvae of African catfish Clarias gariepinus under different feeding conditions

et al. 2008

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Temporary accumulation of ascorbic acid 2-sulfate (AAS) was measured to estimate food intake and gut evacuation in larvae of African catfish. Fish larvae were fed decapsulated cysts of Artemia containing AAS. In a first experiment it was found that no biosynthesis of AAS occurs in the larvae of this species. In a second experiment, the gut contents of the fish larvae fed were calculated as they changed during development. In a third experiment, the gut evacuation rate of fish larvae was determined during continuous and discontinuous feeding regimes in the first five days after the start of exogenous feeding. Food consumption by catfish larvae increased from 46.5% of their body dry weight (BDW) on day 1 after the start of exogenous feeding to 53.8% BDW on day 3. Thereafter, food consumption decreased to 27.8% BDW on day 5. A similar pattern was observed for gut evacuation, which increased during the first days of exogenous feeding and decreased as fish growth continued. The rate of gut evacuation in a continuous feeding regime was significantly higher (P \ 0.05) than that under discontinuous feeding. On day 1 post-hatch and 7 h after first food ingestion the fish larvae evacuated 87% of the food in continuous DOI 10.1007/s10499-008-9230-6 feeding compared with 43% under discontinuous feeding. It was found that gut emptying differs during larval development. Under continuous feeding, on days 1 and 3 post-hatch and 11 h after the first meal 90% of the food was evacuated compared with 71% evacuated on day 5. The advantages and limitations of the AAS method for estimation of food consumption by fish larvae are discussed.

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Maximum daily ration of juvenile fish fed on living natural zooplankton

Cited by 23 publications

References 19 publications

Culture of Senegal Sole Larvae without the Need for Rotifers

Culture of Senegal Sole Larvae without the Need for Rotifers

Daily ration of juvenile Coregonus lavaretus (L.) fed on living zooplankton

Laboratory investigation of daily food intake and gut evacuation in larvae of African catfish Clarias gariepinus under different feeding conditions

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