Acute toxicity of cadmium to juveniles of<i>Clarias gariepinus</i>(Teugels) and<i>Oreochromis niloticus</i>(Trewavas)

Annune, P. A.; Ebele, S.; Oladimeji, A. A.

doi:10.1080/10934529409376116

Cited by 14 publications

(10 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The red blood cell count of C. gariepinus was reported to have increased significantly by Annune et al (1994a) when the fish was subjected to zinc treatment. They attributed the red blood cell elevation to blood cell reserve combined with cell shrinkage as a result of osmotic alterations of blood by the action of the metal (Tort and Torres, 1988).…”

Section: Discussionmentioning

confidence: 99%

Sublethal haematological effects of zinc on the freshwater fish, Heteroclarias sp. (Osteichthyes: Clariidae)

Kori-Siakpere¹,

Ovie²,

Ubogu³

et al. 2008

Afr. J. Biotechnol.

103

View full text Add to dashboard Cite

) of zinc caused a dose dependent decrease in haemoglobin values, coupled with a decrease in haematocrit values and red blood cell counts are obvious indication of anemia of the norm chronic type. The total white blood cell counts and the differential white blood cell counts were decreased except for the lymphocytes in which there was a slight increase. Plasma level of protein and glucose were also lower in the exposed fish when compared to the control. The haematological indices MCHC, MCH and MCV were also lowered. In conclusion, the changes observed indicate that haematological parameters can be used as an indicator of zinc related stress in fish on exposed to elevated zinc levels.

show abstract

Section: Discussionmentioning

confidence: 99%

Sublethal haematological effects of zinc on the freshwater fish, Heteroclarias sp. (Osteichthyes: Clariidae)

Kori-Siakpere¹,

Ovie²,

Ubogu³

et al. 2008

Afr. J. Biotechnol.

103

View full text Add to dashboard Cite

show abstract

“…C. gariepinus became inactive at higher concentrations (1.5-2.25mg/l) of the toxicants similar to the reports of Omitoyin et al (1999) in Sarotherodon galilaeus treated with aqueous of Tetrapleura tetraptera and C. gariepinus with Parkia biglossa and Raphia vinifera (Fafioye et al, 2004). Plant toxins even at low concentrations even are known to elicit mucus production on the body and gills of fish (Annune et al, 1994;Ayuba and Ofojekwu, 2002). Increased mucus secretion in fish exposed to toxicants a defense response by which fish attempts to the reduce entrance of the toxicant through the skin and gill surfaces (Agbede et al, 2000).…”

Section: Discussionmentioning

confidence: 99%

Relative toxicity of aqueous leaf extracts of Lepidagathis alopecuroides (Vahl) R. Br. ex Griseb to the clariids, Clarias gariepinus and Heterobranchus bidorsalis fingerlings

Keremah¹,

Okey²,

Gabriel³

2010

ABJNA

View full text Add to dashboard Cite

show abstract

“…They further discussed that decrease or increase in certain blood parameters can be associated with the nature of species and the toxicants in different studies. Annune et al (1994a) reported a significant increase in RBC count of C. gariepinus when subjected to Zn treatment. They attributed the RBC elevation to blood cell reserve combined with cell shrinkage as a result of osmotic alterations of blood by the action of the metal.…”

Section: Hematological Parametersmentioning

confidence: 99%

Impact of nickel (Ni) on hematological parameters and behavioral changes in Cyprinus carpio (common carp)

Al‐Ghanim¹

2011

Afr. J. Biotechnol.

View full text Add to dashboard Cite

The effect of nickel on hematological parameters and behaviour in Cyprinus carpio after a 96 h exposure to nickel test was investigated. Cyprinus carpio fingerlings were obtained from local fish hatchery. Morphometric characteristics of experimental fish were recorded. Fish of both sexes were stocked without discrimination. The fish were exposed to different concentrations (0, 6, 9, 12, 15 and 18 mg/l) of nickel sulphate using standard screening procedure. The mortality rate of the experimental fish was increased with increase in concentration of nickel. The 96 h median lethal concentration (96 h LC50) was 12.44 mg Ni/L using the logarithmic method with dose-mortality regression line y = 188.224x -86.52. The dissolved oxygen concentration decreased with increase in the level of Ni. All the blood parameters (erythrocyte, leucocytes, hematocrit and hemoglobin count) decreased with increasing dose of nickel and become significantly lower (P < 0.05) at higher concentration when compared with the control. Mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH) and mean corpuscular hemoglobin concentration (MCHC) were also lowered with concentration of toxicant when compared with the control. The results of the present study showed that a short-term exposures to high levels of nickel induced stress reactions in C. carpio. Some adaptive changes were observed; preparing the organism to an increased energy expense, whereas other changes showed a considerable immunosuppressive effect of stress. It was concluded that changes observed indicate that hematological parameters can be used as an indicator of Ni stress in C. carpio.

show abstract

Acute toxicity of cadmium to juveniles ofClarias gariepinus(Teugels) andOreochromis niloticus(Trewavas)

Cited by 14 publications

References 7 publications

Sublethal haematological effects of zinc on the freshwater fish, Heteroclarias sp. (Osteichthyes: Clariidae)

Sublethal haematological effects of zinc on the freshwater fish, Heteroclarias sp. (Osteichthyes: Clariidae)

Relative toxicity of aqueous leaf extracts of Lepidagathis alopecuroides (Vahl) R. Br. ex Griseb to the clariids, Clarias gariepinus and Heterobranchus bidorsalis fingerlings

Impact of nickel (Ni) on hematological parameters and behavioral changes in Cyprinus carpio (common carp)

Contact Info

Product

Resources

About