scholarly journals Experimental modeling of the acute toxicity and cytogenotoxic fate of composite mixtures of chromate, copper and arsenate oxides associated with CCA preservative using Clarias gariepinus (Burchell 1822)

2019 ◽  
Vol 34 (3) ◽  
pp. e2019010 ◽  
Author(s):  
Olukunle S. Fagbenro ◽  
Chibuisi G. Alimba ◽  
Adekunle A. Bakare
Keyword(s):  
Acute Toxicity ◽  
Clarias Gariepinus ◽  
Experimental Modeling

scholarly journals Acute Toxicity of Xylene on the African Catfish Clarias gariepinus

2019 ◽  
Vol 23 (7) ◽  
pp. 1251
Author(s):  
I.C. Davies ◽  
E.S. Erondu ◽  
A.I. Hart ◽  
L.C. Osuji
Keyword(s):  
Acute Toxicity ◽  
Clarias Gariepinus ◽  
African Catfish

Acute Toxicity of Adenia cissampeloides in Farmed African Catfish (Clarias gariepinus)

2017 ◽  
Vol 20 (5) ◽  
pp. 1-5
Author(s):  
P Ekpo ◽  
U Uno ◽  
C Okolo ◽  
R Agu ◽  
C Onwudike
Keyword(s):  
Acute Toxicity ◽  
Clarias Gariepinus ◽  
African Catfish

scholarly journals Respiratory Surveillance and Ca2+-ATPase Enzyme Activity Studies of Clarias gariepinus Exposed to Acute Toxicity of Cyanide

2016 ◽  
Vol 50 ◽  
pp. 62-69
Author(s):  
Kadiri Oseni
Keyword(s):  
Enzyme Activity ◽  
Oxygen Consumption ◽  
Acute Toxicity ◽  
Freshwater Fish ◽  
Aquatic Ecosystems ◽  
Clarias Gariepinus ◽  
Potassium Cyanide ◽  
Strong Relationship ◽  
Short Term ◽  
Consumption Index

Potassium cyanide, a highly contaminating and toxic aquatic ecosystems pollutant was investigated for acute toxicity on the freshwater fish Clariasgariepinus. Its effect on the Ca2+ -ATPase activities in the liver, gills, muscle and intestinal tissues and oxygen consumption index was studied. Short-term toxicity test was carried out by static renewal bioassay test over a 96 h period using a lethal concentration (LC50) value of 0.361mg/mL. Potassium cyanide was highly toxic to the animal tested. Results reveal that normal respiratory activity (O2 consumption) of the fish was significantly affected and there was significant decreased in the Ca2+ - ATPase activities at the end of exposure periods (24, 48, 72 and 96 h). Correlation analysis reveals a strong relationship between oxygen consumption index and ATPase enzyme activity of Clariasgariepinus exposed to the toxicant. This study reflects the toxic effect of potassium cyanide to the freshwater fish, Clariasgariepinus and suggestion on the possible application of Ca2+ -ATPase activities and oxygen consumption index as possible biomarkers for early detection of cyanide poisoning in aquatic bodies.

scholarly journals Histopathological changes in gills and liver of Clarias gariepinus fingerlings exposed to acute concentrations of dry cell battery

2021 ◽  
Vol 19 (1) ◽  
pp. 26-33
Author(s):  
B.S. Audu ◽  
M. Damshit ◽  
J.O. Omirinde ◽  
I.A. Wakawa ◽  
Y. Sulaiman ◽  
...  
Keyword(s):  
Acute Toxicity ◽  
Clarias Gariepinus ◽  
Water Soluble ◽  
African Catfish ◽  
Histopathological Changes ◽  
Secondary Lamellae ◽  
Freshwater Habitats ◽  
Indiscriminate Disposal ◽  
Dry Cell ◽  
Soluble Fractions

Waste dry cell batteries are frequently improperly disposed and subsequently washed into water bodies-- causing deleterious effects on fish particularly Clarias gariepinus which inhabits diverse freshwater habitats. Acute toxicity of water-soluble fractions of waste dry cell batteries was investigated on C. gariepinus fingerlings under laboratory conditions in 96 hours. Ten (10) C. gariepinus fingerlings were exposed to acute concentrations (0.31, 0.63, 1.25, 2.50, and 5.00 g/L) of waste dry cell batteries and a control (0.00 g/L), each duplicate replicated. Histopathological alterations  evident in the gills were lamellar fusion, hyperplasia, inter-lamella space occlusion, hypertrophy and erosion of secondary lamellae. The liver showed nuclear and hepatocytes degeneration, vacuolation and portal congestion. Acute concentrations of water-soluble fractions of waste dry cell batteries caused significant (P<0.05) changes in the histomorphology of the gills and liver of C. gariepinus fingerlings, therefore indiscriminate disposal of waste dry cell batteries around riparian ecosystem should be safeguarded to reduce the declining diversity and abundance of freshwater fish species. Keywords: African catfish, 96 hr.LC50, Fingerlings, Histopathology Zinc-carbon battery

scholarly journals Comparative assessment of the acute toxicity, haematological and genotoxic effects of ten commonly used pesticides on the African Catfish, Clarias gariepinus Burchell 1822

Heliyon ◽  
2020 ◽  
Vol 6 (8) ◽  
pp. e04768
Author(s):  
Nnamdi Henry Amaeze ◽  
Benjamin Olarewaju Komolafe ◽  
Abdulbashir Femi Salako ◽  
Kingsley Kelechi Akagha ◽  
Tam-Miete Dawari Briggs ◽  
...  
Keyword(s):  
Acute Toxicity ◽  
Clarias Gariepinus ◽  
Comparative Assessment ◽  
African Catfish ◽  
Genotoxic Effects

Acute Toxicity and Behavioural Responses of African Catfish, Clarias gariepinus to Amine Salt of 2, 4-D

2010 ◽  
Vol 16 (3) ◽  
pp. 347-352
Author(s):  
GABRIEL Ugwemgorubong Ujagwung ◽  
MACAULAY Bonny Koffi ◽  
EDORI Onisogen Simeon
Keyword(s):  
Acute Toxicity ◽  
Clarias Gariepinus ◽  
Amine Salt ◽  
African Catfish ◽  
Behavioural Responses
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