Effect of chronic cadmium exposure on structure of head kidney of neotropical fish Colossoma macropomum

2011 ◽  
Vol 205 ◽  
pp. S135
Author(s):  
R.D. Salazar-Lugo ◽  
A.B. Vargas ◽  
L.M. Rojas
Keyword(s):  
Head Kidney ◽  
Cadmium Exposure ◽  
Neotropical Fish ◽  
Colossoma Macropomum

Effects of cadmium exposure on sperm and larvae of the neotropical fish Prochilodus magdalenae

2019 ◽  
Vol 225 ◽  
pp. 108577 ◽  
Author(s):  
Lucellys Sierra-Marquez ◽  
Jose Espinosa-Araujo ◽  
Victor Atencio-Garcia ◽  
Jesus Olivero-Verbel
Keyword(s):  
Cadmium Exposure ◽  
Neotropical Fish

Histopathological changes in gill, liver and kidney of neotropical fish Colossoma macropomum exposed to paraquat at different temperatures

2011 ◽  
Vol 31 (3) ◽  
pp. 490-495 ◽  
Author(s):  
Raquel Salazar-Lugo ◽  
Claunis Mata ◽  
Aridays Oliveros ◽  
Luz Marina Rojas ◽  
Mairin Lemus ◽  
...  
Keyword(s):  
Histopathological Changes ◽  
Neotropical Fish ◽  
Colossoma Macropomum ◽  
Different Temperatures ◽  
Liver And Kidney

SNPs markers for the heavily overfished tambaqui Colossoma macropomum, a Neotropical fish, using next-generation sequencing-based de novo genotyping

2016 ◽  
Vol 9 (1) ◽  
pp. 29-33 ◽  
Author(s):  
José Gregorio Martínez ◽  
Valéria Nogueira Machado ◽  
Susana J. Caballero-Gaitán ◽  
Maria da C. Freitas Santos ◽  
Rodrigo Maciel Alencar ◽  
...  
Keyword(s):  
Next Generation Sequencing ◽  
De Novo ◽  
Next Generation ◽  
Neotropical Fish ◽  
Colossoma Macropomum ◽  
Generation Sequencing

Branchial receptors and cardiorespiratory reflexes in a neotropical fish, the tambaqui (Colossoma macropomum)

2000 ◽  
Vol 203 (7) ◽  
pp. 1225-1239 ◽  
Author(s):  
L. Sundin ◽  
S.G. Reid ◽  
F.T. Rantin ◽  
W.K. Milsom
Keyword(s):  
Buccal Cavity ◽  
Cranial Nerves ◽  
Breathing Frequency ◽  
Aquatic Surface Respiration ◽  
Neotropical Fish ◽  
Cardiorespiratory Control ◽  
Colossoma Macropomum ◽  
Before And After ◽  
Water Ph ◽  
Ventral Aorta

This study examined the location and physiological roles of branchial chemoreceptors involved in the cardiorespiratory responses to hypoxia and hypercarbia in a neotropical fish that exhibits aquatic surface respiration, the tambaqui (Colossoma macropomum). Fish were exposed to abrupt progressive environmental hypoxia (18. 6–1.3 kPa water P(O2)) and hypercarbia (water equilibrated with 5 % CO(2) in air, which lowered the water pH from 7.0 to 5.0). They were also subjected to injections of NaCN into the ventral aorta (to stimulate receptors monitoring the blood) and buccal cavity (to stimulate receptors monitoring the respiratory water). All tests were performed before and after selective denervation of branchial branches of cranial nerves IX and X to the gill arches. The data suggest that the O(2) receptors eliciting reflex bradycardia and increases in breathing frequency are situated on all gill arches and sense changes in both the blood and respiratory water and that the O(2) receptors triggering the elevation in systemic vascular resistance, breathing amplitude, swelling of the inferior lip and that induce aquatic surface respiration during hypoxia are extrabranchial, although branchial receptors also contribute to the latter two responses. Hypercarbia also produced bradycardia and increases in breathing frequency, as well as hypertension, and, while the data suggest that there may be receptors uniquely sensitive to changes in CO(2)/pH involved in cardiorespiratory control, this is based on quantitative rather than qualitative differences in receptor responses. These data reveal yet another novel combination for the distribution of cardiorespiratory chemoreceptors in fish from which teleologically satisfying trends have yet to emerge.

Pathological and biochemical index changes in different tissues of Cyprinus carpio exposed to cadmium

2021 ◽  
Vol 01 ◽  
Author(s):  
Guilan Di ◽  
Yanfei Li ◽  
Hui Li ◽  
Xinhua Chen
Keyword(s):  
Alkaline Phosphatase ◽  
Acid Phosphatase ◽  
Cyprinus Carpio ◽  
Head Kidney ◽  
Cadmium Stress ◽  
Optical Microscope ◽  
Cadmium Exposure ◽  
Phosphatase Activities ◽  
Tissue Changes ◽  
Biochemical Indices

Background: Cadmium (Cd) is among the most toxic metals and is widely distributed in aquatic environments. Objective: Histopathological lesions and biochemical indices can be used to reflect the toxic effects of cadmium in fish target organs. Methods: In the present study, the common carp Cyprinus carpio was exposed to 0.5 mg/L of CdCl2 for 21 days. Histopathological analyses were performed in the spleen, liver, kidney, gills and head kidney tissues of C. carpio, and tissue sections were stained with hematoxylin-eosin (HE) and observed under an optical microscope. The acid phosphatase, alkaline phosphatase, and lysozyme activities were determined. Results: The results showed that there were various pathological changes in five major tissues of C. carpio. The kidney, gills, and liver were the most affected organs during cadmium exposure, and deformation and disorganization of epithelial cells, vacuolization formation, serious hemorrhages and necrosis were also observed. In addition, 0.5 mg/L cadmium exposure significantly increased serum lysozyme and acid phosphatase activities and inhibited alkaline phosphatase activity. The present study showed that cadmium stress causes significant pathological tissue changes and influences lysozyme, acid phosphatase and alkaline phosphatase activities in C. carpio. Acid phosphatase and lysozyme activities are sensitive to cadmium. Conclusion: In conclusion, the toxicity of cadmium caused varying degrees of pathological and biochemical changes in fish tissues in C. carpio.

scholarly journals Transferability of heterologous microsatellite primers in Brycon gouldingi

2018 ◽  
Vol 48 (11) ◽  
Author(s):  
Felipe Pinheiro de Souza ◽  
Ed Christian Suzuki de Lima ◽  
Natalia Gonçalves Leite ◽  
Angela Maria Urrea-Rojas ◽  
Andrei Lincoln Yamachita ◽  
...  
Keyword(s):  
Genetic Parameters ◽  
Null Alleles ◽  
Microsatellite Primers ◽  
Neotropical Fish ◽  
Genetic Studies ◽  
Prochilodus Lineatus ◽  
Colossoma Macropomum ◽  
Piaractus Mesopotamicus ◽  
Future Studies ◽  
Environmental Importance

ABSTRACT: Brycon gouldingi is a species of neotropical fish of socioeconomic and environmental importance in the Tocantins-Araguaia Basin. Genetic studies on this species are still limited, making it difficult to evaluate the population structure and genetic diversity in natural and captive stocks. Here, we aimed to evaluate the transferability of heterologous microsatellite primers in B. gouldingi. A total of 30 primers for eight species were evaluated: Brycon hilarii, Brycon opalinus, Brycon cephalus, Brycon orbignyanus, Prochilodus lineatus, Prochilodus argenteus, Piaractus mesopotamicus, and Colossoma macropomum. The primers that showed the best amplification patterns were applied to 20 specimens of B. gouldingi, and their genetic parameters were assessed. Among the 30 primers, seven showed satisfactory transferability, six of which belonged to the genus Brycon: Bh13 (B. hilarii), BoM5, BoM13 (B. opalinus), Borg9, Borg13, and Borg59 (B. orbignyanus), and one belonged to P. argenteus (Par80). The primers for the other species tested showed non-specificity or monomorphism; and were therefore, excluded from the analyses. The number of alleles ranged between two (Borg13 and Borg59) and three (Bh13, BoM5, BoM13, Borg9 and Par80), with sizes varying between 103 bp (BoM5) and 430 bp (Borg9). Four primers showed evidence of null alleles (BoM13, Borg9, Borg13, and Par80), which could probably be attributed to the respective Hardy-Weinberg deviation. Thus, seven primers were validated for cross-amplification in B. gouldingi, which may be used in future studies involving this species.

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