Christian Fernández-Mendez

Christian Fernández-Mendez
Instituto de Investigaciones de la Amazonía Peruana | IIAP · AQUAREC

MSc.

About

58
Publications
18,291
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233
Citations
Additional affiliations
February 2013 - present
Instituto de Investigaciones de la Amazonía Peruana
Position
  • Resercher
Description
  • Research in tropical fish culture technologies, with an emphasis on larval culture research lines, nutrition and physiology of aquatic organisms.
Education
April 2010 - December 2011
National University of San Marcos
Field of study
  • Aquatic Science
March 2004 - December 2008
Federico Villarreal National University
Field of study
  • Aquaculture engineering

Publications

Publications (58)
Data
In Pseudoplatystoma punctifer (e.g. Pseudoplatystoma fasciatum) larvae, parental e¡ects on hatching, growth of initial stages and dry feed adaptation were evaluated as they could in£uence fry heterogeneity, which is responsible for the enhancement of canni-balism, and which remains one of the main factors of mortality during larval stages. A full f...
Article
Full-text available
The aim of this study was to compare the effects of dry and moist diets at weaning on growth, survival and incidence of cannibalism in the Amazon catfish Pseudoplatystoma punctifer. Three moist diets (MCD: moist commercial diet; MCPD: moist commercial peptide enriched diet; BLD: bovine liver enriched diet) and a dry diet (CDD: commercial dry diet)...
Book
Full-text available
Mucho se ha escrito acerca del paiche o pirarucú (Arapaima gigas), existiendo un amplio consenso al considerarla como la especie que sustentará el desarrollo de la acuicultura de exportación en los próximos años en la Amazonía peruana, debido a sus excelentes características zootécnicas: (i) calidad y rendimiento de carne, (ii) rápido crecimiento q...
Article
Full-text available
The rapid coagulation of fish blood makes the use of anticoagulants in hematological analysis necessary and means that choosing the most appropriate product is important. The aim of the present study was to evaluate the effect of two different anticoagulants (heparin sodium and K2EDTA), storage time, and temperature on the hematological values of A...
Article
Full-text available
This study aimed to evaluate the effects of dietary supplementation with the essential oil of Minthostachys mollis on growth, fillet composition, hematological parameters, and disease resistance in juvenile Brycon amazonicus. A total of 120 fish (47.8 ± 7.7 g and 15.2 ± 0.7 cm) were randomly distributed in 12 tanks of 600 L (10 fish per tank) and f...
Article
Full-text available
Silver arowana Osteoglossum bicirrhosum is a native species of the Amazon basin and presents opportunistic omnivorous habits with ichthyophagous preference. It is subjected to great fishing pressure for consumption and ornamental purposes. Fish farming for this fish is being developed, and one of the main difficulties is food availability for the d...
Article
Full-text available
Brachionus quadridentatus Hermann, 1783 es una especie de rotífero común en aguas continentales utilizados en la acuicultura para la producción masiva, el presente estudio tuvo como objetivo evaluar diferentes dietas en el crecimiento poblacional de esta especie en condiciones controladas. El cultivo se realizó en nueve matraces de 500 mL y volumen...
Article
Full-text available
Branchiura are a crustacean parasite widely known around the world as fish lice. In South America, they have been most studied in Brazil as with high levels of infestation, the parasites can be harmful to the health of fish and cause economic losses in fish farms. The objective of the present study is to provide, for the first time, significant inf...
Article
Full-text available
Se evaluó la influencia de la adición dietaria del probiótico comercial EM® CAMARÓN en la alimentación de juveniles de sábalo Brycon amazonicus criados en corrales a una densidad de 1,1 pez/m3. Un total de 120 peces de 8,20 ± 0,73 cm y 5,74 ± 1,50 g de longitud y peso inicial, respectivamente, se dividieron en 12 corrales y pasaron por un período d...
Article
Full-text available
El objetivo del presente estudio fue evaluar un protocolo para la reproducción inducida de mota punteada Calophysus macropterus (Lichtenstein, 1819) en la Amazonía peruana. Para lo cual fueron seleccionadas tres hembras con presencia de ovocitos en maduración y tres machos que presentaron expulsión de líquido seminal ante una ligera presión abdomin...
Article
Pseudoplatystoma punctifer is a highly appreciated fish species native to the Amazon basin, whose commercial farming has been hampered by low survival during early life stages due to the high incidence of cannibalism and the low acceptability of compound diets at weaning. Dietary DHA is known to promote digestive system development and maturation a...
Article
Full-text available
El objetivo del presente estudio fue evaluar la influencia de las clorofitas en el crecimiento poblacional del rotífero Brachionus calyciflorus. El cultivo experimental se realizó en nueve recipientes de polietileno de 4 L con volumen útil de 800 mL de agua filtrada donde se sembraron diez rotíferos Brachionus calyciflorus por recipiente y fueron a...
Article
Full-text available
This study investigated the in vitro efficacy of the essential oil of Minthostachys mollis, Origanum vulgare, and Salvia rosmarinus against monogeneans from the gills of Piaractus brachypomus and the tolerance of this fish to these oils. In vitro concentrations of M. mollis (80, 200, 400, 600, 800, and 1000 mg L⁻¹), O. vulgare, S. rosmarinus (80, 2...
Article
The ontogeny of the digestive capacities in fish is species-specific and its knowledge is essential for understanding the nutritional requirements of fish larvae. While the Amazon basin contains the world's highest fish biodiversity, the molecular basis of the early digestive physiology of the fish species from the Amazon basin have not been report...
Article
Full-text available
Pseudoplatystoma punctifer is an Amazonian catfish highly appreciated for its high flesh quality, size, and commercial value. Its aquaculture is pursued to satisfy the demands of an increasing population in the region. However, knowledge of the nutritional needs during the early life stages is necessary for improving growth and reducing the inciden...
Book
Full-text available
Guía de uso de la hipófisis del paiche Arapaima gigas en tratamientos hormonales para inducir la ovulación de gamitana Colossoma macropomun y sábalo Brycon amazonicus. Se busca aprovechar la glándula hipófisis de un pez nativo de tal forma que la diseminación de esta técnica entre los productores acuícolas que trabajan con estas especies puedan agr...
Article
Full-text available
The aim of this study was to characterize the hematological parameters of Astronotus ocellatus and to determine possible correlations between variables. Blood samples were collected from 15 specimens (weight: 109.43 ± 22.9 g, total length: 15.43 ± 1.28 cm), kept in concrete tanks and fed with a commercial diet extruded at 42% crude protein. Blood s...
Article
Full-text available
Myleus schomburgkii Jandine & Schomburgk, 1841 es un pez con distribución en regiones de América del Sur. Presenta gran importancia económica por las exportaciones generadas como pez ornamental; sin embargo, poco se conoce sobre la presencia de monogeneos en este pez. El objetivo del presente estudio fue investigar los parásitos monogeneos en M. sc...
Article
Full-text available
The aim of this study was to characterize the hematological parameters of Astronotus ocellatus and to determine possible correlations between variables. Blood samples were collected from 15 specimens (weight: 109.43 ± 22.9 g, total length: 15.43 ± 1.28 cm), kept in concrete tanks and fed with a commercial diet extruded at 42% crude protein. Blood s...
Poster
Full-text available
Diseñar los componentes de sistemas productivos en acuicultura requiere del conocimiento de los parámetros y variables de bioingeniería. Los índices de producción deben estar claramente definidos para un rango de variables de bioingeniería. Los componentes de tratamiento físico, químico y biológico del sistema deben mantener el ambiente de cultivo...
Book
Mucho se ha escrito acerca del paiche, existiendo un amplio consenso al considerarla como la especie que sustentará el desarrollo de la acuicultura de exportación en los próximos años en la Amazonía peruana, debido a sus excelentes características zootécnicas: (i) calidad y rendimiento de carne, (ii) rápido crecimiento que permite, con una fase de...
Article
Full-text available
El objetivo del presente estudio fue evaluar el efecto de tres alimentos en el crecimiento y sobrevivencia de juveniles de arahuana Osteoglossum bicirrhosum. Se utilizaron 81 ejemplares (6,5 ± 0,36 cm y 1,03 ± 0,03 g) que fueron distribuidos en acuarios con 15 L de agua a densidad de 0,6 peces L-1. Se usaron tres alimentos: alimento balanceado come...
Article
Full-text available
Myleus schomburgkii Jandine & Schomburgk, 1841 is a fish species distributed in regions of South America. It has great economic importance for the exports generated as ornamental fish. However, little is known about the presence of monogeneans in this fish. The aim of this study was to investigate the monogenean parasites in farmed M. schomburgkii...
Article
The aim of the study was to evaluate the functional ontogeny of the digestive system of Pseudoplatystoma punc- tifer through the analysis of the activity of the main intestinal (alkaline phosphatase, aminopeptidase N, maltase and leucine-alanine peptidase), pancreatic (trypsin, chymotrypsin, total alkaline proteases, bile-salt activated li- pase an...
Conference Paper
Pseudoplatystoma punctifer posee un gran potencial para la acuicultura, pero la alta tasa de canibalismo existente durante su etapa temprana de vida dificulta por ahora su cultivo a gran escala. Una nutrición adecuada reduce significativamente la incidencia de canibalismo y el conocimiento de la ontogenia funcional del sistema digestivo es esencial...
Article
Full-text available
El objetivo de este estudio fue determinar los valores hematológicos de reproductores de Brycon amazonicus bajo cultivo en Iquitos, Perú. Se tomaron muestras de sangre de 12 ejemplares (1.62 ± 0.45 kg y 51.38 ± 2.93 cm) mantenidos en estanques de tierra y alimentados dos veces al día con una dieta comercial extruida al 22% de proteína bruta. Los pe...
Article
Full-text available
El objetivo del presente estudio fue adaptar al consumo de alimento balanceado a alevinos de Arapaima gigas paiche en condiciones controladas. Se utilizó 749 alevinos (1.61 ± 0.26 g y 6.49 ± 0.32 cm) que fueron acondicionados en acuarios de vidrio de 60 L de volumen útil durante 27 días. La alimentación durante el primer día se realizó con nauplios...
Article
Full-text available
El presente estudio tuvo como objetivo evaluar la respuesta hematológica y bioquímica a diferentes concentraciones de amonio de los juveniles de paiche Arapaima gigas. Evaluamos ocho tanques de 1000 litros de volumen de agua con una densidad de 5 peces m-3, que fueron sometidos a tres concentraciones de amonio: 20 mg L-1, 15 mg L-1, 10 mg L-1 y 0 m...
Article
Full-text available
El objetivo de este estudio fue determinar los valores hematológicos y bioquímicos de juveniles de paiche Arapaima gigas criados en cultivo intensivo. Los juveniles (peso inicial 71,72 ± 23,89 g y longitud inicial 20,45 ± 1,42 cm) fueron estabulados en cuatro tanques de 900 Lcon recirculación de agua (temperatura 25,90 -1 -1 ± 0,44 °C; oxígeno disu...
Article
Full-text available
El objetivo de este estudio fue evaluar la variación de crecimiento y la supervivencia en larvas de doncella, Pseudoplatystoma punctifer de 1 a 26 días post fertilización (1-26 dpf), cultivadas en situación comunal. Se obtuvieron 04 progenies, las cuáles fueron obtenidas por la combinación de los óvulos de una hembra con un pool de esperma de cuatr...
Conference Paper
Full-text available
The goal of this study was to analyze the nutritional effects on phenotypic plasticity during the larval development of Pseudoplatystoma punctifer. Larvae were fed artemia from 4 to 18 days post fertilization (dpf) and weaned onto inert diet from 15 to 29 dpf. A commercial enrichment was used to generate the following dietary treatments: control gr...
Conference Paper
Full-text available
The osteological development of Pseudoplatystoma punctifer was studied from 27 hours post-fertilization (hpf) to 15 days post-fertilization (dpf). The first ossified skeletal structures were observed as early as at 3.0-4.7 mm total length-TL (57-75 hpf), corresponding to premaxilla and mentomeckelium, both equipped with villiform teeth, maxilla, en...
Article
The aim of the study was to evaluate the influence of different dietary protein and lipid levels and their ratios on larval growth, survival and the incidence of cannibalism in Pseudoplatystoma punctifer. Larvae were raised in a recirculation system from 3 to 26 days post-fertilization (dpf) (2–25 days post hatching, dph) at an initial density of 4...
Conference Paper
Full-text available
The paternal effect on growth and survival of the offspring of Pseudoplatystoma punctifer was evaluated from 1 to 26 days post fertilization (dpf ). Four progenies were obtained by combining the eggs of a single female with a pool of sperm from four males. They were raised in communal tanks at 28 ± 0.5 ºC. All families were grown in a recirculating...
Conference Paper
Full-text available
La pesca comercial de los grandes bagres, especialmente de la doncella Pseudoplatystoma punctifer, es una de las principales actividades económicas en la Amazonía Peruana debido a la calidad de su carne, alta demanda, ausencia de espinas intramusculares y rendimiento, lo cual ha ocasionado una fuerte presión de pesca. Por estas razones hay un creci...
Conference Paper
Full-text available
In Pseudoplatystoma punctifer ex. fasciatum, artificial breeding relies on the adaptation of larvae to dry food (weaning) after a period of brine shrimp (Artemia nauplii) feeding. The main objective of the current research was the development of a breeding protocol that reduces the use of Artemia nauplii, the weaning period and mortality. Two reari...
Conference Paper
Full-text available
El objetivo del presente estudio fue evaluar la influencia de diferentes niveles de proteínas y lípidos de la dieta y sus ratios en el crecimiento, la supervivencia y la incidencia de canibalismo en larvas y juveniles de Pseudoplatystoma punctifer. Los individuos fueron criados en un sistema de recirculación de 3 a 26 días post fertilización (dpf)...
Article
Full-text available
El objetivo de este estudio fue determinar los valores hematológicos e índices parasitarios de 25 juveniles de banda negra Myleus schomburgkii criados en condiciones de cautiverio en estanques de tierra bajo las siguientes condiciones: 29.3 ± 0.9 C°, OD: 3.5 ± 1.2 mg.L-1 y pH: 6.7 ± 0.2. Para la evaluación de cada ejemplar se tomó una muestra de sa...
Data
Full-text available
The organogenesis of the digestive system was described in the Amazonian pimelodid catfish species Pseudoplatystoma punctifer from hatching (3.5 mm total length, TL) to 41 days post-fertilization (dpf) (58.1 mm TL) reared at 28°C. Newly hatched larvae showed a simple digestive tract, which appeared as a straight undifferentiated and unfolded tube l...
Article
Full-text available
The organogenesis of the digestive system was described in the Amazonian pimelodid catfish species Pseudoplatystoma punctifer from hatching (3.5 mm total length, TL) to 41 days post-fertilization (dpf) (58.1 mm TL) reared at 28°C. Newly hatched larvae showed a simple digestive tract, which appeared as a straight undifferentiated and unfolded tube l...
Conference Paper
Full-text available
The ontogeny of the digestive system of fish is species-specific and its knowledge is necessary to design feeding protocols adapted to the developmental degree and functionality of their digestive organs. This work aimed to study the organogenesis of the digestive tract and accessory glands during the larval development (from 0 to 36 days post fert...
Poster
Full-text available
Description of the organogenesis of the digestive tract and accessory glands during the larval development (from 0 to 36 days post fertilization-­dpf) by means of histological techniques in Pseudoplatystoma punctifer (Doncella).
Conference Paper
Full-text available
Pseudoplatystoma punctifer (Doncella) is one of the most commercially appreciated catfish in the Amazon basin. Its overexploitation has awakened interest in the development of its aquaculture. However, high mortality rates still occur during the larval phase, mainly due to the low adaptability of larvae to inert diets at weaning and their strong ca...
Conference Paper
Full-text available
Pseudoplatystoma punctifer is an Amazonian catfish prized for the quality of its meat, both in Peru and internationally. Although captive-breeding methodology is well established for this species under controlled conditions, large-scale aquaculture has not yet been implemented. The aim of this study was to evaluate the paternal contribution of the...
Article
Full-text available
La doncella Pseudoplatystoma punctifer es uno de los grandes bagres de importancia comercial en la Amazonía, su carne es muy apreciada en los mercados locales debido a la ausencia de espinas intramusculares y al tamaño que alcanza. Se encuentra ampliamente distribuida en la cuenca amazónica, es una especie prometedora para la producción piscícola,...
Data
Full-text available
IIAP, Programa para el Uso y Conservacio¤ n del Agua y sus Recursos (AQUAREC), Iquitos, Peru¤ Correspondence: J Nunez, 351 RUE J.F. Abstract In Pseudoplatystoma punctifer (e.g. Pseudoplatystoma fasciatum) larvae, parental e¡ects on hatching, growth of initial stages and dry feed adaptation were evaluated as they could in£uence fry heterogeneity, wh...

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