Acute toxicity of the root extract of Jimson's weed (&lt;i&gt;Datura Innoxia&lt;/i&gt;) to the African catfish (&lt;i&gt;Clarias gariepinus&lt;/i&gt;) fingerlings

Ayuba, V. O.; Ofojekwu, P. C.

doi:10.4314/jas.v17i2.19927

Cited by 19 publications

(18 citation statements)

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“…The fingerlings of C. gariepinus at 140mg/l achieved deep anaesthesia in 2.13min and recover at 27.12min whereas H. bidorsalis had the same induction time (2.33min), but a lower recovery time of 25.20min. similar result was demonstrated by Soto and Burhanuddin 48 and Anderson et al, 49 who used clove oil (33-120mg/1) and reported recovery time of 150sec for Siganus lineatus and 190 sec for rainbow trout respectively. Several studies involving the clarrids confirm the above observation.…”

Section: Discussionsupporting

confidence: 84%

The efficacy of clove (Eugenia caryophyllata) powder as anaesthesia on African catfishes (Clarias gariepinus and Heterobranchus bidorsalis) fingerlings

IB¹

2018

JAMB

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The efficacy of clove powder as anaesthetic agent on C. gariepinus and Heterobranchus bidorsalis fingerlings was investigated in this study and the water quality parameters of the test solutions also determined. The time of induction and recovery for various stages and concentrations was recorded in minutes using a stop watch. The concentrations used for the anaesthesia bioassay were 60, 70, 80, 100, 120, and 140mg/l. The water quality parameters examined after 30mins did not differ (P<0.05) from those of control hence may not have contributed to the observed behaviour of the test fish. Fingerlings exposed to 60 and 70mg/l had partial anaesthesia and did not achieved stage 4(deep anaesthesia) after 30mins. Those exposed to concentration above 70mg/l were completely immobilized (deep anaesthesia) within 3-10mins depending on concentration. The mean time under each concentration increased significantly (P<0.05) from stages 1-4. The various stages of induction and recovery of C. gariepinus were higher than those of H. bidorsalis except induction stages 1 and 3 and recovery stage 3. Increasing concentration proportionally decrease the induction time but increase the time required for full recovery. An ideal anaesthetic must have among other qualities quick induction and slightly longer recovery time to allow for varied manipulation as desirable. In this study clove powder at 120 and 140 mg/l induced deep anaesthesia in less than 5mins with a recovery time of 25-27mins, making it an ideal anaesthestic for African clarrid fingerlings.

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Section: Discussionsupporting

confidence: 84%

The efficacy of clove (Eugenia caryophyllata) powder as anaesthesia on African catfishes (Clarias gariepinus and Heterobranchus bidorsalis) fingerlings

IB¹

2018

JAMB

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“…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

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“…Whenever, a chemical substance was administered to a biological system, different types of interactions occurred leading to series of responses [2]. In most studies with the same toxicant and species, variations in toxicity values were frequently observed [44], due to the minor differences in the experiment, environmental conditions, water quality, weight, age, and gender of the fish [7,45,46].…”

Section: Toxicity Of Piww -Dose-response Curvementioning

confidence: 99%

Ecotoxicity of Purified Industrial Waste Water

Lyubenova¹,

Dineva²,

Cala³

et al. 2019

eer

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Purified industrial waste water (PIWW) has been evaluated for probable toxicity using test-systems with Pseudorasbora parva (topmouth gudgeon) and Lepidium sativum L (garden cress). The acute toxicity of PIWW was calculated according to mortality of Pseudorasbora parva in dilutions 1, 5, 10, 25, 50, 100 and 200 times, and distillate water (DW) was used as a control. The LC 50 has been calculated after 96 h of treatment and it was at approximately 8x (7.69) times dilution of PIWW. The toxic effect of PIWW with and without copper ions, added as CuSO 4 have been measured using Lepidium sativum L. The comparison of the toxic effects of the same concentrations of copper in PIWW and DW, mixed and non-mixed contamination has been evaluated. It was found that Cu +2 has inhibitory effects on the root's and stem's growth of Lepidium sativum L seeds, and that effect appears in concentrations over 2 mg/l Cu +2 . The 50% inhibition of root's growth in DW was EC 50 =7.26 mg/l of copper ions, while for PIWW that concentration was EC 50 =17.23 mg/l Cu +2 . The calculated EC 50 for stem's growing in DW was 54.57 mg/l Cu +2 and 72.07 mg/l Cu +2 in PIWW. The observed EC 50 differences in DW and PIWW perhaps are due to the formation of ligand compounds among copper cations and other impurities in the waste water and hence as consequences the reducing of free Cu +2 or their bioavailability, hereafter reduce copper toxicity. It was registered that PIWW diminished growth inhibitory effect of copper ions on Lepidium sativum L seeds lessening its amount by involving free Cu +2 in complexes with other waste products.

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Acute toxicity of the root extract of Jimson's weed (<i>Datura Innoxia</i>) to the African catfish (<i>Clarias gariepinus</i>) fingerlings

Cited by 19 publications

References 0 publications

The efficacy of clove (Eugenia caryophyllata) powder as anaesthesia on African catfishes (Clarias gariepinus and Heterobranchus bidorsalis) fingerlings

The efficacy of clove (Eugenia caryophyllata) powder as anaesthesia on African catfishes (Clarias gariepinus and Heterobranchus bidorsalis) fingerlings

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

Ecotoxicity of Purified Industrial Waste Water

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