Preserved copepods as a new technology for the marine ornamental fish aquaculture: A feeding study

Olivotto, Ike; Tokle, Nils; Nozzi, Valentina; Cossignani, Lina; Carnevali, Oliana

doi:10.1016/j.aquaculture.2010.08.033

Cited by 48 publications

(42 citation statements)

References 44 publications

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“…However, it appears that s-type rotifers cannot be used for initial feeding because they are slightly larger in size to the gape limitation of C. septentrionalis larvae at first feeding. Mouth size is an important factor in larval rearing because it limits the maximum size of the prey that can be consumed (Shirota 1970;Olivotto, Tokle, Nozzi, Cossignani & Carnevali 2010;Olivotto, Gaiot, Holste, Tulli, Cardinaletti, Piccinetti, Gioacchini & Carnevali 2012). Assuming that edible prey can only be 20-50% of the maximum gape (Shirota 1970;Heath 1992;Fern andez-D ıaz, Pascual & Y ufera 1994;Busch 1996;Munk 1997;Cunha & Planas 1999;Østergaard, Munk & Janekarn 2005), prey must not exceed 68-170 lm to be potential food for C. septentrionalis larvae 3 dph.…”

Section: Discussionmentioning

confidence: 99%

First results of larval rearing and development of the bluestriped angelfishChaetodontoplus septentrionalis(Temminck & Schlegel) from hatching through juvenile stage with notes on its potential for aquaculture

2013

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The aim of this study was to report the first successful results on larval rearing of Chaetodontoplus septentrionalis, a description of larval and juvenile development stages, and appropriate first-feed items for pilot-scale larviculture systems. Fertilized eggs were obtained from natural spawnings from communally reared captive wild broodstock. Newly hatched larvae were 2.11 AE 0.06 mm (mean AE SD) in total length (L T ) with 27-28 myomeres. Larvae completed yolk absorption within 3 days post hatching (dph) at 2.92 AE 0.11 mm L T . Transformation of larvae to the juvenile stage was completed at 16.51 mm L T , all fins had the adult complement of rays and spines. A statistical model: Y = (X 9 0.0112) + (X 2 9 0.0086) À (X 3 9 0.00004) + 2.8065, where Y is mean L T (mm) and X represents dph, explained 99.8% of variation in growth (P < 0.001, R 2 = 0.998). The effects of live feed on survival was significantly (P < 0.05) higher in larvae fed a combination of diet (ciliates, rotifers and copepods) than the others. These results indicate that C. septentrionalis is a potential species for captive breeding programs and the use of a combination of diet may be a suitable first food for the larviculture.

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Section: Discussionmentioning

confidence: 99%

First results of larval rearing and development of the bluestriped angelfishChaetodontoplus septentrionalis(Temminck & Schlegel) from hatching through juvenile stage with notes on its potential for aquaculture

2013

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“…Olivotto et al (2010) demonstrated high growth rate and percent survival of Amphiprion clarkii, an ornamental fish, when a combined diet was used. Fish would spend less time and energy to ingest rapidly available artificial food, than to ingest the same volume of plankton by sucking water (Rahman et al, 2010).…”

Section: Discussionmentioning

confidence: 99%

“…However, several studies reported that fish fed solely on formulated diets, have poor percent survival and low growth rate (Finn and Kapoor, 2008), whereas others researches insist that combination of live food and formulated diets in the early stage may provide higher growth rate and percent survival than live food (Rosenlund et al, 1997;Puello-Cruz et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

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Feed of Siamese fighting fish, Betta splendens, (Regan, 1910) in open pond: live and formulated diets

et al. 2016

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The growth rate and percent survival of Betta splendens when submitted to formulated diet and live food treatments are evaluated. The three different diets were used and designated as: formulated diet (basal diet); live food diet (plankton) and mixed diet (formulated diet with plankton). The live food diet contained plankton belonging to an open pond. High mortality was reported with live food (plankton) treatment whereas higher percent survival occurred with formulated diet. Highest specific growth rate, weight gain and final weight were reported in the mixed diet treatment and were significantly different (p<0.01) from those in formulated diet and live food treatments. The gut contents of B. splendens in mixed diet and live food treatments comprised, Rotifera and Bacillariophyceae species in high percentages or rather, over 78% of total organisms. Lecane sp. was the most ingested zooplankton species by B. splendens in both treatments (mixed diet and live food), with the phytoplankton species Asterionella sp. and Melosira sp. respectively in mixed diet and in live food, respectively. Results indicated that the formulated diet influenced the water parameters dissolved oxygen, total suspended solids, total dissolved solids and pH. The live food in the open pond was not enough to improve the growth rate and percent survival of B. splendens. The growth performance of B. splendens; had the best results with mixed diet which was capable of maintaining species's survival (82%) and development in artificial conditions, benefiting the culture management of ornamental fish.Keywords: ornamental fish, plankton, formulated diet, growth, aquaculture.Alimentação do peixe-de-briga, Betta splendens (Regan, 1910) em tanque externo de cultivo: dieta natural e formulada ResumoFoi avaliado o crescimento e sobrevivência de Betta splendens, quando submetidos à dieta formulada e alimento vivo. Foram utilizadas três dietas experimentais e designadas como: dieta formulada (ração); alimento vivo (plâncton) e dieta mista (ração com plâncton). O plâncton pertence ao tanque externo de cultivo. Alta mortalidade foi observada no tratamento com alimento vivo (plâncton) e a mais alta sobrevivência na dieta formulada. No tratamento com dieta mista foram observadas as maiores taxas de crescimento específico, ganho de peso e peso final, sendo significativamente diferentes (p<0,01) dos outros tratamentos. No conteúdo do trato digestório do B. splendens nos tratamentos dieta mista e alimento vivo, as espécies de Rotifera e Bacillariophyceae foram encontradas acima de 78% do total de organismos observados. Lecane sp. foi a espécie de zooplâncton mais ingerida por B. splendens em ambos os tratamentos (dieta mista e alimento vivo) e de fitoplâncton foi Asterionella sp. (dieta mista) e Melosira sp. (alimento vivo). Os resultados do presente estudo indicaram que a dieta formulada (ração) influenciou alguns parâmetros da água, como oxigênio dissolvido, sólidos totais solúveis, sólidos totais solúveis, sólidos totais suspensos e pH, e o alimento vi...

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“…Among these techniques, copepod preservation is a new technology able to produce copepods that maintain, through the time, their biochemical composition (Olivotto et al . ; Piccinetti et al . ).…”

Section: Introductionmentioning

confidence: 99%

The use of preserved copepods in sea bream small-scale culture: biometric, biochemical and molecular implications

et al. 2013

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Considering the well‐known problems arising from the use of rotifers and Artemia as live prey in larval rearing in terms of fatty acid deficiencies, the aim of this study was to evaluate a partial or complete replacement of traditional live prey with preserved copepods during the larviculture of gilthead sea bream (Sparus aurata). Sea bream larvae were randomly divided into 4 experimental groups in triplicates: group A larvae (control) fed rotifers followed by Artemia nauplii; group B fed a combined diet (50%) of rotifers–Artemia and preserved copepods; group C fed rotifers followed by preserved copepods; and group D fed preserved copepods solely. Survival and biometric data were analysed together with major molecular biomarkers involved in growth, lipid metabolism and appetite. Moreover, fatty acid content of prey and larvae was also analysed. At the end of 40 days treatment, a stress test, on the remaining larvae, was performed to evaluate the effects of different diets on stress response. Data obtained evidenced a positive effect of cofeeding preserved copepods during sea bream larviculture. Higher survival and growth were achieved in group B (fed combined diet) larvae respect to control. In addition, preserved copepods cofeeding was able to positively modulate genes involved in fish growth, lipid metabolism, stress response and appetite regulation.

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Preserved copepods as a new technology for the marine ornamental fish aquaculture: A feeding study

Cited by 48 publications

References 44 publications

First results of larval rearing and development of the bluestriped angelfishChaetodontoplus septentrionalis(Temminck & Schlegel) from hatching through juvenile stage with notes on its potential for aquaculture

First results of larval rearing and development of the bluestriped angelfishChaetodontoplus septentrionalis(Temminck & Schlegel) from hatching through juvenile stage with notes on its potential for aquaculture

Feed of Siamese fighting fish, Betta splendens, (Regan, 1910) in open pond: live and formulated diets

The use of preserved copepods in sea bream small-scale culture: biometric, biochemical and molecular implications

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