Parasite prevalence and bioaccumulation of polycyclic aromatic hydrocarbons as stressors in the silver catfish, chrysichthys nigrodigitatus (Siluriformes: Claroteidae)

Akinsanya, Bamidele; Isibor, Patrick Omoregie; Pentho, Kuton Minasu; Mulikat, King; Saliu, Joseph Kayode

doi:10.1016/j.sciaf.2019.e00225

Cited by 4 publications

(11 citation statements)

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“…In order to get an insight on the water sorption mechanism, the swelling kinetics were evaluated using first-and second-order kinetics equations [58] (Equations (6) and 7, respectively):…”

Section: Swelling Degreementioning

confidence: 99%

“…Besides, the interaction between aromatics is likely more significant than the adsorbate-adsorbent one [65]. Once the knowledge of the initial and border conditions, in the kinetics experiments, are not very well defined, due to the complexity of the system, the sorption kinetics will be evaluated by the pseudo 1 st order and pseudo 2nd order kinetic models [66,67] (Equations (6) and 7, by substituting Q e and Q t by q e and q t (mg g −1 ), respectively).…”

Section: Sorption Kineticsmentioning

confidence: 99%

“…The fitting parameters of Equations (6) and 7to experimental sorption for BTXs and PAHs, and the corresponding AICs, are summarized in the Figure S3 and Table S4. The results revealed that the sorption kinetics for all adsorbates followed a pseudo-first order model.…”

Section: Sorption Kineticsmentioning

confidence: 99%

“…Monoaromatic hydrocarbons (e.g., benzene, toluene, and xylene isomers (BTXs)) and polycyclic aromatic hydrocarbons (PAHs; e.g., pyrene, benzo(b)fluoranthene (B(b)F), and benzo(a)pyrene (B(a)P)) are the priority and persistent micropollutants, due to their hydrophobic nature and toxicity [1][2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

“…[7][8][9]. BTXs and PAHs include recalcitrant, mutagenic, and carcinogenic compounds and, consequently, remediation strategies need to be developed for their treatment [4,6,8,10,11].…”

Section: Introductionmentioning

confidence: 99%

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Uncommon Sorption Mechanism of Aromatic Compounds onto Poly(Vinyl Alcohol)/Chitosan/Maleic Anhydride-β-Cyclodextrin Hydrogels

et al. 2020

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Aromatic hydrocarbons are extensive environmental pollutants occurring in both water and air media, and their removal is a priority effort for a healthy environment. The use of adsorbents is among the several strategies used for the remediation of these compounds. In this paper, we aim the synthesis of an amphiphilic hydrogel with the potential for the simultaneous sorption of a set of monocyclic and polycyclic aromatic hydrocarbons associated with toxicity effects in humans. Thus, we start by the synthesis of a copolymer-based in chitosan and β-cyclodextrin previously functionalized with the maleic anhydride. The presence of β-cyclodextrin will confer the ability to interact with hydrophobic compounds. The resulting material is posteriorly incorporated in a cryogel of poly(vinyl alcohol) matrix. We aim to improve the amphiphilic ability of the hydrogel matrix. The obtained hydrogel was characterized by swelling water kinetics, thermogravimetric analysis, rheological measurements, and scanning electron microscopy. The sorption of aromatic hydrocarbons onto the gel is characterized by pseudo-first-order kinetics and Henry isotherm, suggesting a physisorption mechanism. The results show that the presence of maleic anhydride-β-cyclodextrin and chitosan into hydrogels leads to an increase in the removal efficiency of the aromatic compounds. Additionally, the capacity of this hydrogel for removing these pollutants from a fossil fuel sample has also been tested.

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“…In order to get an insight on the water sorption mechanism, the swelling kinetics were evaluated using first-and second-order kinetics equations [58] (Equations (6) and 7, respectively):…”

Section: Swelling Degreementioning

confidence: 99%

Section: Sorption Kineticsmentioning

confidence: 99%

Section: Sorption Kineticsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…[7][8][9]. BTXs and PAHs include recalcitrant, mutagenic, and carcinogenic compounds and, consequently, remediation strategies need to be developed for their treatment [4,6,8,10,11].…”

Section: Introductionmentioning

confidence: 99%

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Uncommon Sorption Mechanism of Aromatic Compounds onto Poly(Vinyl Alcohol)/Chitosan/Maleic Anhydride-β-Cyclodextrin Hydrogels

et al. 2020

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Bioaccumulation of organochlorine pesticides in the parasite Cosmocerca sp. (Nematoda: Cosmocercidae) and the amphibian host Amietophrynus regularis (Reuss, 1833) within Lagos metropolis, Nigeria

et al. 2022

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Highlights The use of organochlorine pesticides (OCPs) has caused several devastating health and ecological challenges; one of such includes the sharp decline in amphibian population. Toad’s relatively higher skin permeability afford them a distinguished chemical accumulation tendency compared to other aquatic fauna. The parasite- Cosmocerca sp. has been shown to be a possible bioindicator of OCP congeners as it bioaccumulated OCP congeners from the liver and the intestine. The toads may have been exposed to toxic levels of these chemicals but the parasite- Cosmocerca sp. has demonstrated a novel niche in protecting the host .

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Modulation of Trace Metal Accumulation in the Liver and Intestine of Amphibian Host Sclerophrys regularis by the Enteric Parasite Cosmocerca spp. Sampled in Lagos Metropolis, Nigeria

Okeagu

Akinsanya

Isibor

et al. 2022

JoBAZ

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Background Recent studies have shown parasites as accumulation indicators that give critical information about the bioavailability of pollutants. To further buttress parasites in the assessment of metal sink potentials, the parasite Cosmocerca sp. was analyzed in a total of 168 host toads, Sclerophrys regularis, from three (3) study stations sampled around dumpsites and natural habitats in selected parts of Lagos Metropolis. Method Concentrations of Zn, Ni, Co, Cu, and Pb in the soil, parasite, intestine, and liver of toads at each location were analyzed using flame atomic absorption spectrometry. Results Comparison based on the concentrations of metals in S. regularis liver regardless of the collection site (dumpsite and natural habitat) showed that the most accumulated metal was zinc. Zinc significantly accumulated in the liver of the uninfected toad at the dumpsite, followed by the infected counterparts. There was also significant bioaccumulation of lead in the liver of the uninfected toads followed by the infected toads at the dumpsites. The accumulation of lead in the toads in their natural habitats was insignificant. The significant biota-sediment accumulation of copper in the liver was in the order of infected toad at dumpsite > infected toad at natural habitat > uninfected toad at habitat. Copper accumulation in the uninfected toad at the dumpsites was insignificant. As for cobalt, the significant biota-sediment accumulation in the liver was in the order of uninfected toad at dumpsite > infected toad at dumpsite > infected toad at habitat. Insignificant bioaccumulation occurred only in the uninfected toad at the natural habitat. A strong positive correlation (0.9546) between the concentrations of metals in the liver and the intestine indicated a common source of contamination and relatively proportional accumulation rates. Although there was a significant positive correlation between the concentrations of metals in the intestine and the parasites, a significantly negative correlation relationship, however, occurred between the concentrations of metals in the liver and the parasites. Conclusions This current study has demonstrated the possibility of employing Cosmocerca sp. as a bio-sink and bioindicator for zinc contamination. The parasites may therefore be promising in protecting S. regularis and safeguarding the health of the associated populace.

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Parasite prevalence and bioaccumulation of polycyclic aromatic hydrocarbons as stressors in the silver catfish, chrysichthys nigrodigitatus (Siluriformes: Claroteidae)

Cited by 4 publications

References 39 publications

Uncommon Sorption Mechanism of Aromatic Compounds onto Poly(Vinyl Alcohol)/Chitosan/Maleic Anhydride-β-Cyclodextrin Hydrogels

Uncommon Sorption Mechanism of Aromatic Compounds onto Poly(Vinyl Alcohol)/Chitosan/Maleic Anhydride-β-Cyclodextrin Hydrogels

Bioaccumulation of organochlorine pesticides in the parasite Cosmocerca sp. (Nematoda: Cosmocercidae) and the amphibian host Amietophrynus regularis (Reuss, 1833) within Lagos metropolis, Nigeria

Modulation of Trace Metal Accumulation in the Liver and Intestine of Amphibian Host Sclerophrys regularis by the Enteric Parasite Cosmocerca spp. Sampled in Lagos Metropolis, Nigeria

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