Morphometric characteristics of Prochilodus lineatus (Valenciennes 1847), of the migratory and resident stocks of the river Mogí-Guaçu, São Paulo State, Brazil

Machado, M. R. F.; Foresti, Fausto

doi:10.4025/actascianimsci.v34i4.14445

Cited by 6 publications

(4 citation statements)

References 7 publications

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“…In addition, water quality parameters such as temperature, pH, and dissolved oxygen of the nursery and ponds where larvae and juveniles develop can influence their morphology. Therefore, these intraspecific morphometric differences may occur due to environmental and biological pressures to which populations are exposed during their development (LEARY et al, 1992;WIMBERGER, 1992;MATTHEWS, 1998;SOUZA JÚNIOR et al, 2002;SHIBATTA & OHARA, 2007;MACHADO & FORESTI, 2012). In addition, the latitudinal difference in the environmental temperature can influence the threshold size and the duration of each developmental stage among geographically isolated population of a single fish species (TAKAHASHI et al, 2012;McLEOD et al, 2015).…”

Section: Discussionmentioning

confidence: 99%

Morphological development of larvae and juveniles of Prochilodus argenteus

et al. 2017

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Prochilodus argenteus is an endemic fish species from the São Francisco River basin that is of high economic and environmental importance. The present study aimed to contribute with information to the taxonomic identification of larvae and juveniles of this species. Larvae , obtained from induced spawning of wild animals, were reared in ponds. Individuals were collected daily and classified into larval stages or juvenile phase. Morphological descriptions and morphometric measurements were performed, together with a piece wise linear regression analysis of the body proportions throughout the development process. Individuals in the preflexion stage had a standard length (SL) of 4.48 to 6.64mm, long to moderate body (BH/SL), small to moderate head (HL/SL), and a small to moderate eye (ED/HL). In the flexion stage, the SL varied from 6.60 to 11.00mm, long to moderate body, moderate head, and small to moderate eye. Larvae in the postflexion stage presented SL of 10.54-19.93mm, moderate body, moderate to big head and small eye. The juvenile phase included specimens with a SL of 18.27 to 42.21mm which presented a moderate to high body, big head and small to moderate eye. Regression analysis showed significant moments of change in rate of increase of the body proportions, presenting a change in the growth pattern from allometry to isometry during the early development.

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Section: Discussionmentioning

confidence: 99%

Morphological development of larvae and juveniles of Prochilodus argenteus

et al. 2017

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“…No laboratório, foram realizadas as medições morfométricas de acordo com as técnicas proposta por Machado et al (2012), que foram obtidas com o auxílio de ictiômetro graduado em centímetros (precisão de 1 mm) e de um paquímetro (precisão de 0,1 mm), mantendo-se o peixe estendido sobre uma superfície plana (Figuras 1). Os peixes do sistema de recirculação de água foram criados no laboratório de Aquicultura do IFMS campus Coxim.…”

Section: Materiais E Métodosunclassified

Características morfométricas do pintado em diferentes classes de peso

Cabral

Costa

Curvo

et al. 2021

Nature and Conservation

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O estudo teve como objetivo avaliar as características morfométricas do pintado criado no Pantanal de Mato Grosso do Sul (Brasil), em diferentes classes de peso, oriundos de dois sistemas de criação (viveiros escavados e recirculação). Os peixes obtidos em viveiros escavados foram adquiridos com um piscicultor, sendo utilizados 35 exemplares, distribuídos em um delineamento inteiramente casualizado, composto por cinco tratamentos (diferentes classes de peso: 1) 700 a 899 gramas (g), 2) 900 a 1099g, 3) 1100 a 1299g, 4)1300 a 1499g e 5)1500 a 1699g.) e sete repetições. Os peixes do sistema de recirculação de água foram criados em um tanque de geomembrana de 30 m3 com 100 animais e, após um período de 195 dias, 35 peixes foram classificados nas mesmas classes de peso descritas anteriormente. Comparando as relações morfométricas dos peixes criados nos viveiros e as do sistema de recirculação não apresentam diferenças significativas (p>0,05). Portanto, os pintados criados nos dois sistemas apresentam as mesmas características morfométricas com comportamento linear de crescimento e relações morfométricas similares com uma tendência de estabilização da altura do corpo com a elevação do peso.

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“…Genetic and morphometric studies of P. lineatus were done in the La Plata River basin but restricted to the upper section of the Paraná River, failing to detect population structure (Revaldaves et al, 1997;Machado & Foresti, 2012;Ferreira et al, 2017). Also, one phylogenetic study involving a broad sample distribution suggested high levels of gene flow across the entire basin (Sivasundar et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

Mitochondrial DNA variation reveals the presence of two management units in the sabalo Prochilodus lineatus (Characiformes: Prochilodontidae) from La Plata River basin

Márquez

Stareczek²,

Caraccio³

et al. 2019

LAJAR

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The La Plata River basin, the second largest drainage basin in South America, supports important fisheries, in which the sábalo Prochilodus lineatus is the leading species measured as extracted volumes. To characterize the population structure of the sábalo in the middle and lower regions of the La Plata River basin, cytochrome b DNA sequences of 121 samples collected in La Plata, Paraná and Uruguay rivers were used. Results suggest the presence of at least two populations: one that we called "southern population" uses the La Plata River and the lower sections of the Paraná and Uruguay rivers and another population (called here "northern population") in the middle section of the Uruguay and Paraná rivers. The southern population would have a larger effective population size and coalescence-based analyses reveal an asymmetric gene flow, mainly from north to south. A striking result is that samples from the middle sections of the Paraná and Uruguay rivers are more alike to each other than they are to the other samples of their respective rivers. This similarity could be explained by historical reasons, probably as a consequence of the proximity that both rivers had until 100,000 years ago. The presence of different management units being exploited by the continental fisheries of three countries demands coordination at a regional level in order to maintain a sustainable fishery.

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Morphometric characteristics of Prochilodus lineatus (Valenciennes 1847), of the migratory and resident stocks of the river Mogí-Guaçu, São Paulo State, Brazil

Cited by 6 publications

References 7 publications

Morphological development of larvae and juveniles of Prochilodus argenteus

Morphological development of larvae and juveniles of Prochilodus argenteus

Características morfométricas do pintado em diferentes classes de peso

Mitochondrial DNA variation reveals the presence of two management units in the sabalo Prochilodus lineatus (Characiformes: Prochilodontidae) from La Plata River basin

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