Metabolic substrates are not mobilized from the osmoregulatory organs (gills and kidney) of the estuarine pufferfishes Sphoeroides greeleyi and S. testudineus upon short-term salinity reduction

Prodocimo, Viviane; Souza, Carine Ferreira de; Pessini, Cristina; Fernandes, Luíz Cláudio; Freire, Carolina A.

doi:10.1590/s1679-62252008000400009

Cited by 10 publications

(5 citation statements)

References 64 publications

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“…As the current study results show that humidity is decreased in fish bodies when salinity concentrations were high, which is the result of osmotic effect that fish faced on high salinity level. Cyprinus Carpio cannot handle salty concentrations that is the reason behind the confusion that fish faced in organizing their body water as a result of increasing ionic load and losing water by osmotic effects outside the body the thing that could affect humidity inside body tissues (Prodocimo, et al, 2008). As for other body components (ashes, fat and protein) study results showed that the percentage of fat is decreased even though it was used as an energy resource all of that could be as an effect of provender food value because part of its components metabolized and other part settle in body tissues.…”

Section: Aquatic Science and Technologymentioning

confidence: 99%

Effect of Different Salinity Concentrations on the Chemical analysis and Time Appearance of Feces for Cyprinus Carpio

Hilali¹,

Al-Khshali

2019

AST

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The present study was conducted to investigate the effect of high salinity on some stress parameters of common carp (Cyprinus carpio), which gradually exposed to salt concentrations of 5, 10 and 15g/liter, as well as tap water (water without chlorine) (control 0.1g/liter) for 90 days. Eighty fish were randomly distributed on eight glass tanks with 2 replicates, 10 fish / replicate at average weight of 15 ± 3 g, to study the effect of salinity on the time appearance of feces and, the chemical analysis of the body composition .The results showed that the appearance time of feces was decreased with the rise of salt concentrations of common carp. As the passage of food through digestive tract took less time in high salinities. and the appearance of feces was after 4.16 hours of feed intake in a salt concentration of 15 g/liter, whereas it started after 5.22 hours in a saline concentration of 10 g/l and after 6.11 in a salt concentration of 5g/l in comparison with the control treatment (6.17 hours). Regarding the chemical analysis of the body composition, it was found that the moisture dropped with the rise of salinity, as it mounted to 77.09, 74.94 and 73.80% in the salt concentrations 5,10 and 15 g/l respectively, in comparison with the control treatment (78.45%).The percentage of protein decreased to 14.19, 13.89 and 13.74% in the salt concentrations 5, 10 and 15 g/l respectively, in comparison with the control treatment (14.28%).The percentage of fat amounted to 5.71, 5.68, and 5.66% in the salt concentrations 5,10 and 15 g/l respectively, in comparison with the control treatment (5.73%). whereas the percentage of ash was increased to 3.01, 5.40 and 6.80% with the increase in salinity to 5,10 and 15 g/l respectively ,compared with the control treatment (1.80%).

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Section: Aquatic Science and Technologymentioning

confidence: 99%

Effect of Different Salinity Concentrations on the Chemical analysis and Time Appearance of Feces for Cyprinus Carpio

Hilali¹,

Al-Khshali

2019

AST

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“…However, the distribution of a given species seems to depend on the degree of its physiological tolerance. Prodocimo & Freire (2001, 2004 and Prodocimo et al (2008), studying the osmoregulatory ability of S. greeleyi and S. testudineus, reported that the species are eurihaline and exhibit similar ability for plasma osmolality and salt water ionic regulation.…”

Section: Spatial Variationmentioning

confidence: 99%

“…They have broad physiological tolerance (Prodocimo & Freire, 2001, 2004Prodocimo et al, 2008) and use the same food resources (Chiaverini, 2008). However, they exhibit differences regarding the body size of individuals.…”

Section: Introductionmentioning

confidence: 99%

Environmental influences on the spatial and temporal distribution of the puffer fish Sphoeroides greeleyi and Sphoeroides testudineus in a Brazilian subtropical estuary

Fávaro

Oliveira

Ventura³

et al. 2009

Neotrop. ichthyol.

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The spatial and temporal distribution of Sphoeroides greeleyi and Sphoeroides testudineus were established from collections (biological material and environmental data) conducted on a monthly basis from May 2000 to April 2001 in intertidal areas along the north-south axis of the estuarine complex of Paranaguá, Paraná State. In addition to characterizing a north-south spatial gradient, which fluctuates seasonally, the variation in the abiotic factors made possible the division of the estuary into three regions: north, central and south. Spatially, it was found that the number of individuals declines significantly for both species in the north-south direction of the estuary. Moreover, significant differences were found in the size of individuals across the estuarine regions. The largest S. greeleyi individuals were caught in the north, as well as the smallest S. testudineus individuals. The catches with the highest numbers of puffer fish occurred from late spring to early autumn, coinciding with the occurrence of specimens of smaller size and lower mean body mass. The results indicate that spatial and temporal variations in the environment impact the distribution patterns of both puffer fish species, suggesting that the co-occurrence of closely related species functions as a modulating factor in that distribution.A distribuição espacial e temporal de Sphoeroides greeleyi e Sphoeroides testudineus foram estabelecidas a partir de coletas (material biológico e dados ambientais) realizadas mensalmente de maio/2000 a abril/2001 em áreas intertidais, no eixo norte-sul, do complexo estuarino de Paranaguá, Estado do Paraná. A variação dos fatores abióticos coletados, além de caracterizar um gradiente espacial, no sentido norte-sul, que varia sazonalmente, possibilitou a divisão do estuário em três regiões: norte, central e sul. Espacialmente, verificou-se para ambas as espécies que o número de indivíduos decresce, significativamente, no sentido norte-sul estuarino. Ainda, foram encontradas diferenças significativas no porte dos indivíduos entre as regiões do estuário, no norte ocorreram os maiores indivíduos de S. greeleyi e os menores de S. testudineus. As maiores capturas dos baiacus ocorreram do final da primavera ao início do outono, coincidindo com a ocorrência de exemplares de menor tamanho e de menor massa corporal média. Os resultados indicam que as variações espaciais e temporais do ambiente afetam os padrões de distribuição de ambas as espécies de baiacus, sugerindo que a co-ocorrência de espécies aparentadas age como um fator modulador nesta distribuição.

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“…Regulation is achieved through a range of ionic and osmoregulatory processes that demand energy (Nordlie, 2009;Lisboa et al, 2015). In this context, alterations in hematocrit values usually reflect changes in blood water content and/or metabolic rate (Iwama, McGeer, & Pawluk, 1989;Prodocimo, Souza, Pessini, Fernandes, & Freire, 2008).…”

Section: Introductionmentioning

confidence: 99%

Respiratory profile and gill histopathology of Carassius auratus exposed to different salinity concentrations

Silva

Ziemniczak

Bacha

et al. 2021

Semina: Ciênc. Agrár.

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The aim of this study was to evaluate the chronic salinity tolerance of Carassius auratus and the effects on blood parameters, gill morphology, and survival. In the first test, nine different concentrations (0.0, 0.5, 1.0, 2.5, 5.0, 10, 15, 20, and 25 g L-1) of NaCl were used with nine repetitions for 96 h. The survival of fish subjected to 15 g L-1 NaCl was 4 h, and 5 min at a concentration of 25 g L-1. The mortality of fish with 15 g L-1 NaCl was 100%. Morphological analyses of the gills showed hyperplasia of the coated cells in the interlamellar space and hypersecretion of mucus in fish exposed to 10 g L-1 of NaCl. At concentrations of 20 and 25 g L-1, necrosis of the support collagen caused the cells to detach from the lamellar structure mucosa. In the chronic test, two concentrations were used, with four replications containing nine fish in each aquarium for a period of 21 days. Blood samples and gills from the fish were collected, and it was observed that the fish showed a decrease in the concentration of bicarbonate (NaHCO3) in the blood, indicating hypernatremia. Acute exposure of C. auratus to sodium chloride (NaCl) should be at a maximum of 10 g L-1 of NaCl, after which level there would be a loss in animal performance and/or mortality. Chronic exposure to 5 g L-1 of NaCl promotes acidemia, ionic imbalance, and pathological changes in the gills; therefore, it is not recommended.

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Metabolic substrates are not mobilized from the osmoregulatory organs (gills and kidney) of the estuarine pufferfishes Sphoeroides greeleyi and S. testudineus upon short-term salinity reduction

Cited by 10 publications

References 64 publications

Effect of Different Salinity Concentrations on the Chemical analysis and Time Appearance of Feces for Cyprinus Carpio

Effect of Different Salinity Concentrations on the Chemical analysis and Time Appearance of Feces for Cyprinus Carpio

Environmental influences on the spatial and temporal distribution of the puffer fish Sphoeroides greeleyi and Sphoeroides testudineus in a Brazilian subtropical estuary

Respiratory profile and gill histopathology of Carassius auratus exposed to different salinity concentrations

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