Survival and the growth of pintado (Pseudoplatystoma corruscans) post-larvae on different salinities

Beux, Luis Fernando; Zaniboni‐Filho, Evoy

doi:10.1590/s1516-89132007000500010

Cited by 21 publications

(12 citation statements)

References 21 publications

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“…The use of low levels of salinity in freshwater fish larviculture has been considered an interesting treatment for various species, such as H. lacerdae (Luz & Portella, 2002), Pimelodus maculatus (Weigartner Zaniboni Filho, 2004), Pseudoplatystoma corruscans (Beux & Zaniboni Filho, 2007;Santos & Luz, 2009), L. alexandri (Luz & Santos, 2008;Santos & Luz, 2009), Prochilodus costatus (Santos & Luz, 2009), Rhinelepis aspera (Luz & Santos, 2010) and Piaractus mesopotamicus (Jomori et al, 2012), showing survival and performance results similar and/or higher than the ones observed in freshwater. Water salinity media can improve the osmotic balance between fish and their surroundings (Boeuf & Payan, 2001;Garcia et al, 2007), stimulate feed intake and prevent diseases and parasites (Altinok & Grizzle, 2001;Garcia et al, 2007).…”

Section: Discussionmentioning

confidence: 99%

Stocking density in the larviculture of Nile tilapia in saline water

et al. 2012

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-The objective of this study was to assess the possibility of increasing the stocking density in the larviculture of Nile tilapia, Oreochromis niloticus, in saline water. Six-day post-hatched larvae (average weight of 0.09±0.002 g), at the start of the exogenous feeding, were stocked in twelve 8 L tanks at densities of 1, 10, 20 and 30 larvae/L. The larvae were fed a diet consisting of 40% crude protein five times per day. During larviculture, water was kept at a salinity of 2 g of common salt/L. At the end of the 28-day experiment, the survival rate, length, weight, temperature, water salinity and conductivity were not affected by the different treatments. The dissolved oxygen and pH, however, decreased as density increased, whereas total ammonia concentration, turbidity and biomass showed a direct relationship with the increase of stocking density. Consequently, the present study shows for the first time that the larviculture of Nile tilapia is possible with up to 30 larvae/L in water with 2 g of salt/L.

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Section: Discussionmentioning

confidence: 99%

Stocking density in the larviculture of Nile tilapia in saline water

et al. 2012

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“…Relatos sobre a alimentação natural do pintado são raros na literatura, apenas Mello et al (2009) comenta a presença de Loricariidae, Cichlidae e crutáceos nos estômagos da espécie, sendo estas, presas de fundo. Assim como a traíra, P. corruscans apresentou canibalismo, também evidenciado por Beux & Zaniboni Filho (2007). A curvina, P. squamosissimus possui boca grande terminal (Bialetzki et al 2002) bastante protrátil o que possivelmente facilita a captura de presas em locais de difícil acesso para a maioria dos outros piscívoros.…”

Section: Discussionunclassified

Uso de recursos alimentares por peixes imaturos e adultos de espécies piscívoras em uma planície de inundação neotropical

Bozza

Hahn

2010

Biota Neotrop.

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Abstract:The aim of this study was to evaluate the use of food resources by juveniles and adults of Acestrorhynchus lacustris, Hemisorubim platyrhynchos, Hoplias aff. malabaricus, Plagioscion squamosissimus, Pseudoplatystoma corruscans e Salminus brasiliensis from the upper Paraná River floodplain, sampled quarterly between March 2007 and December 2008. The quantitative trophic composition was obtained by prey volume (% volume) and diet niche breadth of each piscivorous species, as well as trophic relationships among them through diet similarity and prey size. The diet of the species was composed of fish-preys (42 species), crustaceans and insects, with ontogenetic diet changes, except to P. corruscans. The niche breadth was high to H. aff. malabaricus adults and low to P. corruscans adults and P. squamosissimus juveniles. Diet similarity was high to Characidae species consumers and low to P. squamosissimus juveniles, which consumed mainly crustaceans. Positive correlation was found between prey and predator size, however, each piscivorous species consumed different prey sizes, showing no correlation among them. Results showed that the six species consumed fish since juveniles, however, with low diet similarity intra and inter specific to most of them, and the prey size consumed increased in relation to predator size and varied among species. Thus, the piscivorous species diet depends of prey species distribution and colonization, morphology and feeding behavior of the prey as well as the predator. Resumo: Este estudo teve como objetivo avaliar o uso dos recursos alimentares por indivíduos imaturos e adultos de Acestrorhynchus lacustris, Hemisorubim platyrhynchos, Hoplias aff. malabaricus, Plagioscion squamosissimus,Pseudoplatystoma corruscans e Salminus brasiliensis, da planície de inundação do alto Rio Paraná, coletados trimestralmente entre março de 2007 e dezembro de 2008. Foi avaliada a composição quantitativa da dieta através da obtenção do volume das presas (% volume) e amplitude de nicho trófico de cada uma das espécies, bem como as inter-relações tróficas entre elas, através da similaridade entre as dietas e tamanho das presas. A dieta das seis espécies foi composta por peixes-presa (42 espécies), crustáceos e insetos, sendo que todas elas, com exceção de P. corruscans, mostraram alterações ontogenéticas. A amplitude de nicho foi maior para H. aff. malabaricus adultos e menor para P. corruscans adultos e P. squamosissimus imaturos. A similaridade na dieta foi maior para aquelas espécies que consumiram Characidae e menor para P. squamosissimus imaturos, os quais consumiram preferencialmente crustáceos. Houve correlação positiva entre o tamanho da presa e do predador, porém cada espécie consumiu presas de tamanhos diferentes, mostrando que elas não são correlacionadas. Os resultados demonstraram que as seis espécies consumiram peixes desde as fases imaturas, porém com pouca similaridade intra e inter-específica na dieta para a maioria delas, e que o tamanho das presas consumidas aumentou em relação ao ta...

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“…Simultaneously, salt avoids pathogen proliferation, which reduces animal stress and mortality probability (Baldisserotto, 2002). Other papers have also confirmed the benefits of using salt water in fish farming (Beux & Zaniboni-Filho, 2007;Kubitza, 2007). However, usage levels should vary according to the species and age.…”

Section: Resultsmentioning

confidence: 89%

“…Yet, this microcrustacean is originally a marine species and its survival rate is greatly reduced when maintained in fresh water. A manner for fresh water fish larvae to take better advantage of the nauplii (crustacean larval form) is to perform larviculture in slightly salinized water (Beux & Zaniboni-Filho, 2007), which also helps to avoid pathogens and reduces fish stress (Baldisserotto, 2002).…”

Section: Introductonmentioning

confidence: 99%

Combination of diet and water salinity in larviculture of piabanha-do-Pardo ( Brycon vonoi , Lima 2017)

et al. 2017

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1Two experiments were carried out to study piabanha-do-Pardo (Brycon vonoi) larvae development. In the first, six different diets were evaluated, being Artemia sp., plankton, feeds, feeds + Artemia sp., feeds + plankton, and Prochilodus hartii (curimba) larvae. In the second, four different water salinity levels (0, 2, 4, and 6‰) were tested. Both assays were entirely randomized design experiments, lasting for 10 days. At the end of these trials, fish biomass, survival, total length, weight, and specific growth rate were measured. Additionally, water quality, temperature, oxygen, pH, and electric conductivity measurements were made every three days. The curimba larvae diet presented higher survival rate (47.2%) and biomass weight (2.5 g) than the other diets, which were similar among each other. Piabanha-do-Pardo larvae weight, length, and specific growth rate varied with the offered diets. All water salinity treatments showed better results than those observed for fresh water. When cultivated in 2‰ salinization, larvae had 52.5% survival rates and 0.49 g biomass weight, while in the fresh water these results were 6.6% and 0.23 g, respectively. To conclude, we may identify curimba larvae as an adequate diet, and a 2‰ water salinity as recommended if Artemia sp. larvae are fed to piabanha-do-Pardo larvae. Combinações de alimentos e salinidade da água na larvicultura de piabanha-do-Pardo (Brycon vonoi, Lima 2017)Foram conduzidos dois experimentos com larvas de piabanha-do-Pardo Brycon vonoi. No primeiro ensaio, avaliaram-se seis dietas: Artemia sp., plâncton, ração, ração + Artemia sp., ração + plâncton, larvas de Prochilodus hartii (curimba). No segundo, quatro salinidades de água (0, 2, 4 e 6‰), ambos os experimentos em delineamento inteiramente casualizado, com duração de 10 dias. A biomassa, sobrevivência, comprimento total, peso e taxa de crescimento específico foram mensurados ao final dos experimentos; já os parâmetros de qualidade de água, temperatura, oxigênio, pH e condutividade elétrica foram aferidos a cada três dias. O alimento larva de curimba resultou em maior sobrevivên-cia (47,2%) e biomassa (2,5 g) do que os demais tipos, que foram similares entre si. O peso, o comprimento e a taxa de crescimento específico não diferiram entre si para as larvas alimentadas com os diversos tipos de alimento. Todos os tratamentos com salinização apresentaram melhores resultados em relação a água doce sem salinização. No entanto, quando cultivadas sob 2‰ de salinização, as larvas apresentaram 52,5% de sobrevivência e 0,49 g de biomassa, e em água doce sem salinização foram observados apenas 6,6% e 0,23 g, respectivamente. Conclui-se que a utilização de larvas de curimba como dieta é o mais adequado e recomenda-se salinizar a água com 2‰, caso seja fornecida artêmia como alimento.Palavras-chave: Artemia sp.; canibalismo; characiformes; espécie nativa; manejo alimentar; Prochilodus hartii.

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Survival and the growth of pintado (Pseudoplatystoma corruscans) post-larvae on different salinities

Abstract: The aim of this study was to evaluate the survival and growth of pintado, Pseudoplatystoma corruscans, post-larvae (PL) submitted to seven salinities: S1: 0; S2: 1.7; S3: 3.3; S4: 5; S5: 6.7; S6: 8.3

Cited by 21 publications

References 21 publications

Stocking density in the larviculture of Nile tilapia in saline water

Stocking density in the larviculture of Nile tilapia in saline water

Uso de recursos alimentares por peixes imaturos e adultos de espécies piscívoras em uma planície de inundação neotropical

Combination of diet and water salinity in larviculture of piabanha-do-Pardo ( Brycon vonoi , Lima 2017)

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