Sex reversal, growth, and survival in the guppy Poecilia reticulata (Cyprinodontiformes: Poeciliidae) under laboratory conditions

Ortega-Salas, A. A.; Reyes-Bustamante, H.; B., H. Reyes

doi:10.22458/urj.v5i2.278

Cited by 3 publications

(2 citation statements)

References 3 publications

(3 reference statements)

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“…In the last decades having dominated the complete culture for commercialization, aquarology now, has focused on producing more showy fish, so they focus on scientific studies of sexual reversion, growth and survival through the application of hormones and handling of parameters of pH and temperature (Ortega‐Salas et al . ). The State of Morelos is the largest producer of ornamental species in Mexico, exporting 70% of its production.…”

Section: Aquaculture Developmentmentioning

confidence: 97%

Cultivation of native fish in Mexico: cases of success

Dávila-Camacho

Galaviz-Villa

Lango-Reynoso

et al. 2018

Reviews in Aquaculture

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Aquaculture practice in Mexico is commonly carried out with some freshwater species, which are introduced in the region for its production, with technology developed in other countries. The growth of this activity has been slow, sometimes leading to loss of investments due to difficulties in the implementation of foreign technological packages, poor selection and inadequate management of the species, or farming sites, and even confusing legal procedures. Mexico stands out for the development of crops of exotic species more than native species, of which most are freshwater type. There are thirty‐four recorded species of freshwater fish, six of them are native and twenty‐eight are introduced species. The success of cultivating native species lies mainly in the process of selecting species with potential and certain characteristics. Mariculture is relatively new in Mexico; it has been intensibly developed, mostly in the north‐west of the country. It has a great potential due to the high commercial value of its species, excellent quality and demand in the market. Ornamental aquaculture is the most developed in Mexico; the main producer is the state of Morelos, with total technological expertise in production of introduced and native species. It should be noted that this success has been achieved, in some cases, with the support of projects from government institutions, universities, research centres, associations and private companies. Pointing out that the common factor for a successful aquaculture practice is an ecosystemic and sustainable approach, continuously improving practices and fish farming management, while complying with regulatory standards.

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Section: Aquaculture Developmentmentioning

confidence: 97%

Cultivation of native fish in Mexico: cases of success

Dávila-Camacho

Galaviz-Villa

Lango-Reynoso

et al. 2018

Reviews in Aquaculture

View full text Add to dashboard Cite

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“…Nitrogen plays a key role in microalgal growth (Tagliaferro et al, 2019) since it is an important part of its biomass (about 5 % in dry matter), particularly of lipids and proteins (Ortega and Reyes, 2012;Hernández and Labbé, 2014;López et al, 2015; Cobos et al, 2016). A N deficiency in the culture medium increases the concentration of reactive oxygen species that can cause damage to the DNA, telomeres and membrane lipids, as well as proteins and carbohydrates in organelles (Ríos, 2003;Benson and Bremner, 2004;Fujita, 2006;Jeyapalan and Sedivy, 2008).…”

Section: Population Growthmentioning

confidence: 99%

Crecimiento y viabilidad celular de microalgas: efecto del medio de cultivo

Oviedo-Montiel¹,

Herrera-Cruz²,

Hoya-Florez³

et al. 2020

Intropica

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En acuicultura, el uso de microalgas es fundamental en la primera alimentación de especies nativas de peces, pues su óptimo nivel nutricional favorece la sobrevivencia. El éxito de la producción de microalgas depende, entre otras, del medio de cultivo empleado. Los fertilizantes agrícolas usados como medio de cultivo son una alternativa de bajo costo que favorece el crecimiento celular y la criopreservación. El objetivo fue evaluar el efecto de dos medios de cultivo sobre el crecimiento poblacional (CP) y la viabilidad celular post-descongelación (VCP) de microalgas Chlorella sp., Desmodesmus sp., y Ankistrodesmus sp. Se evaluó el CP y VCP los medios de cultivo F/2 Guillard, y Nutrifoliar®. Para el CP en ambos tratamientos se determinó: crecimiento (k), tiempo de duplicación (td), rendimiento (r) y densidad máxima (dm). Para VCP se empleó metanol al 5 y 10 %, en seis tratamientos. La VCP se clasificó: sin daño celular (SDC), daño celular (DC) y lesiones marcadas (LM). El crecimiento poblacional fue igual para las tres microalgas (p>0,05). El T1 tuvo el menor td para Desmodesmus sp. (p<0,05). El T2 presentó el mayor r y dm para las tres microalgas (p <0,05). En la viabilidad celular post-descongelación, el mayor porcentaje SDC para Chlorella sp., al día (d) cero, fue similar en T3 y T4 y al d cinco fue en T6; para Desmodesmus sp, al d cero fue en T6 y al d cinco fue similar en T6 y T1; mientras que, para Ankistrodesmus sp, al d cero y cinco se presentó en T3. Se concluye que el medio de cultivo Nutrifoliar®, es una alternativa viable y de bajo costo para el cultivo y la criopreservación de microalgas de agua dulce.

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Immunohistochemical Analysis of Olfactory Sensory Neuron Populations in the Developing Olfactory Organ of the Guppy, Poecilia reticulata (Cyprinodontiformes, Poecilidae)

Bettini,

Lazzari,

Milani

et al. 2023

Microscopy and Microanalysis

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Olfaction is fundamental for sensing environmental chemicals and has obvious adaptive advantages. In fish, the peripheral olfactory organ is composed of lamellae in which the olfactory mucosa contains three main categories of olfactory sensory neurons (OSNs) as follows: ciliated (cOSNs), microvillous (mOSNs), and crypt cells. We studied the appearance of these different OSNs during development of Poecilia reticulata, given its growing use as animal model system. We performed immunohistochemical detection of molecular markers specific for the different OSNs, carrying out image analyses for marked-cell counting and measuring optical density. The P. reticulata olfactory organ did not show change in size during the first weeks of life. The proliferative activity increased at the onset of secondary sexual characters, remaining high until sexual maturity. Then, it decreased in both sexes, but with a recovery in females, probably in relation to their almost double body growth, compared to males. The density of both cOSNs and mOSNs remained constant throughout development, probably due to conserved functions already active in the fry, independently of the sex. The density of calretinin-positive crypt cells decreased progressively until sexual maturity, whereas the increased density of calretinin-negative crypt cell fraction, prevailing in later developmental stages, indicated their probable involvement in reproductive activities.

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Sex reversal, growth, and survival in the guppy Poecilia reticulata (Cyprinodontiformes: Poeciliidae) under laboratory conditions

Cited by 3 publications

References 3 publications

Cultivation of native fish in Mexico: cases of success

Cultivation of native fish in Mexico: cases of success

Crecimiento y viabilidad celular de microalgas: efecto del medio de cultivo

Immunohistochemical Analysis of Olfactory Sensory Neuron Populations in the Developing Olfactory Organ of the Guppy, Poecilia reticulata (Cyprinodontiformes, Poecilidae)

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