The impacts of grazing by tilapias (Oreochromis niloticus L.) on periphyton communities growing on artificial substrate in cages

Huchette, Sylvain; Beveridge, M. C. M.; Baird, Donald J.; Ireland, M.

doi:10.1016/s0044-8486(99)00365-8

Cited by 75 publications

(63 citation statements)

References 9 publications

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“…However, the ash content of periphyton samples from bamboo and kanchi was less than 30%, which can be considered reasonable in fish nutrition terms (Yakupitiyage, 1993). Huchette et al (2000) reported similar periphyton ash contents derived from cages. Protein content of the periphyton from bamboo was much higher (38% AFDM) than from hizol and kanchi (Table 2).…”

Section: Periphyton Nutritional Qualitymentioning

confidence: 59%

“…The AI values also decreased with time in this experiment indicating that AFDM of non-algal origin dominated in periphyton DM at initial stage. Huchette et al (2000) reported AIs fluctuating between 150 and 300 in ungrazed conditions and remaining stable at around 300 in grazed conditions, suggesting a highly heterotrophic community. Bender et al (1989) explained the mechanisms of biomass development of microbial mats on the substrates.…”

Section: Periphyton Nutritional Qualitymentioning

confidence: 94%

“…Ocean coral reef algae must be grazed constantly and kept at a low biomass to maintain their high productivity (Hatcher, 1983;Hay, 1991). Huchette et al (2000) reported that the periphyton communities grazed by tilapia were younger, healthier and more productive. Although fish were absent in this experiment, grazing by zooplankton, molluscs and other invertebrates did occur.…”

Section: Periphyton Productivitymentioning

confidence: 99%

“…In the present study, the combined production of phytoplankton and periphyton in tropical aquaculture ponds could achieve comparable production figures (1.17-1.53 g C m -2 d -1 from phytoplankton and 1.01-1.38 g C m -2 d -1 from periphyton). However, pond productivity could be further increased if plankton and periphyton are optimally consumed by fish (Hatcher, 1983;Hay, 1991;Huchette et al, 2000) and ponds are optimally fertilized.…”

Section: The Potential Of Periphyton-based Aquaculture Systemsmentioning

confidence: 99%

See 3 more Smart Citations

The effects of artificial substrates on freshwater pond productivity and water quality and the implications for periphyton-based aquaculture

Äzim¹,

Wahab

Verdegem³

et al. 2002

Aquatic Living Resources

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Section: Periphyton Nutritional Qualitymentioning

confidence: 59%

Section: Periphyton Nutritional Qualitymentioning

confidence: 94%

Section: Periphyton Productivitymentioning

confidence: 99%

Section: The Potential Of Periphyton-based Aquaculture Systemsmentioning

confidence: 99%

See 2 more Smart Citations

The effects of artificial substrates on freshwater pond productivity and water quality and the implications for periphyton-based aquaculture

Äzim¹,

Wahab

Verdegem³

et al. 2002

Aquatic Living Resources

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“…Ces auteurs signalent que les organismes planctoniques se développement dans les étangs de l'aquaculture et sont facilement consommés par les poissons d'élevage. BEVERIDGE et , HUCHETTE et al (2000) et KÖPRÜCÖ et ÖZDEMIR (2005 ont aussi signalé, qu'Oreochromis niloticus se nourrit aussi bien de la microflore et microfaune naturelles, que des aliments supplémentaires exogènes. Ces auteurs ont donc suggéré la prise en compte de ces interférences pour acquérir les bases nécessaires à une bonne gestion des matières premières et de la distribution des rations alimentaires journalières, ce qui devrait permettre une gestion appropriée de l'aliment exogène en vue de réduire les pertes et donc les coûts.…”

Section: Introductionunclassified

Apports Relatifs en Nourritures Naturelle Et Artificielle Dans L’alimentation Du Tilapia Oreochromis Niloticus en Captivite

Bamba

Amidou

Moreau

et al. 2007

Bull. Fr. Pêche Piscic.

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RESUMEDes études sur le rythme alimentaire, la ration alimentaire journalière et la quantité des nourritures naturelles et artificielles consommées ont été réalisées chez des populations d'alevins (6 g), de juvéniles (30 g) et d'adultes (250 g) d'Oreochromis niloticus. L'échantillonnage a été effectué toutes les 3 heures, sur deux cycles de 24h dans 4 bassins bétonnés (alevins) et dans 8 étangs (juvéniles et adultes). Le contenu des estomacs a été analysé. Les poids frais du contenu des estomacs ont été traités par le logiciel MAXIMS pour déterminer les taux d'ingestion, d'évacuation et la ration alimentaire journalière.Les courbes de la prise de nourritures présentent deux pics montrant une activité alimentaire périodique et diurne. En dehors des périodes de nourrissage (9h et 15h), le contenu des estomacs est composé majoritairement d'aliments naturels chez les alevins et juvéniles. En revanche, chez les adultes, les nourritures apportées sont plus abondantes entre 9 h et 24 h. En dehors de cette période, le bol alimentaire est constitué presque uniquement de nourritures naturelles chez toutes les populations des poissons prélevés. Les rations alimentaires distribuées quotidiennement estimées sont de 10 % ; 6,7 % et 3,7 % du poids corporel respectivement chez les alevins, les juvéniles et les adultes. Dans ce même ordre des populations indiquées, les nourritures naturelles consommées ont été approximativement de 4 %, 2,31 % et 1 % contre 6, 4,45 et 2,7 % pour l'aliment artificiel. Mots-clés :Oreochromis niloticus, pisciculture semi-intensive, contenu stomacal, nourritures naturelles, alimentation artificielle, Côte d'Ivoire. RELATIVE CONTRIBUTIONS OF NATURAL AND SUPPLEMENTAL FOOD IN NILE TILAPIA OREOCHROMIS NILOTICUS FEEDING IN CAPTIVITY ABSTRACTStudies on feeding periods, daily ration and relative artificial and natural food consumption in populations of juveniles (6 g -56 -concrete basins (juvenile) and eight ponds (sub-adult and adult). Fish were caught at three hourly intervals. Stomach contents of different populations were microscopically analysed. The gut content weights were submitted to the feeding model MAXIMS to determine the ingestion, evacuation rates and daily ration. Two peak feeding periods were evident. The fish showed diurnal diel feeding periodicity. Outside the food distribution periods (9 h and 15 h), the gut contents were mostly composed of natural food in juvenile and sub-adult populations. In addition, in adult population, artificial food was more important from 9 h to 24 h. outside this period, the gut content in each fish population was only constituted of natural food. The daily rations were about 10 %, 6.7 % and 3.7 % respectively for the juvenile, sub-adult and the adult. In that order, the consumed natural food represented 4 % 2.3 % and 1 %. Respective values of the artificial food estimated were 6 %, 4.45 % and 2.7 % for the juvenile, sub-adult and the adults.

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2004

Cage Aquaculture

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The impacts of grazing by tilapias (Oreochromis niloticus L.) on periphyton communities growing on artificial substrate in cages

Cited by 75 publications

References 9 publications

The effects of artificial substrates on freshwater pond productivity and water quality and the implications for periphyton-based aquaculture

The effects of artificial substrates on freshwater pond productivity and water quality and the implications for periphyton-based aquaculture

Apports Relatifs en Nourritures Naturelle Et Artificielle Dans L’alimentation Du Tilapia Oreochromis Niloticus en Captivite

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