Skip to content
Research Article Open access CC BY 4.0

Studies on Mortality and Histopathological Alteration on the Gills of Oreochromis niloticus Juveniles Following Exposure to Ethanolic Extract of Phramenthera capitata under Laboratory Conditions

U. U. George, A. J. Otoh, O. O. Ajayi, I. E. George

Asian Journal of Fisheries and Aquatic Research · pp. 23–34 · Published 10 Aug 2023

10.9734/ajfar/2023/v24i3634

Abstract

The study was conducted using two replicate (Batch A and B) for 96 hours under controlled laboratory conditions, with five different concentrations of the extract ranging from 0 to 40 mg/l. The results of the study revealed that the extract had a concentration-dependent toxic effect on the test organisms, with induced behavioural changes such as abnormal and uncoordinated swimming movement, restlessness, respiratory difficulties, and attempts at jumping out. The alterations of physico-chemical parameters of the test water were also observed, indicating the adverse effects of the extract on the aquatic environment. The 96 hours LC50 for Oreochromis niloticus was determine to be 22.124 mg/l representing a log-transformed concentration of 1.345 mg/l. This is the concentration where 50% of the test organisms is expected to die at the end of the 96 hours’ bioassay. The histopathological examination of the gills revealed pathological changes in the test organisms at concentrations of 20, 30, and 40 mg/l whereas no histomorphological changes was observed at 0 and 10 mg/l concentrations of the extract. The result of the present findings suggests that ethanolic extract of P. capitata had severe impacts on the test organisms resulting in mortality and gill damage.

Phramenthera capitata mortality gills histomorphological Oreochromis niloticus

References (13)

  1. 1 Quantitative Chemical Analysis [DOI]
  2. 2 African mistletoes (loranthaceae); ethnopharmacology, chemistry and medicinal values: An update [DOI]
  3. 3 Methods of Extraction: Maceration, Percolation and Decoction [DOI]
  4. 4 Trace metal accumulation in Clarias gariepinus (Teugels) exposed to sublethal levels of tannery effluent [DOI]
  5. 5 Introduction to Fish Physiology
  6. 6 Toxicity of Carica papaya Linn: Haematological and Piscicidal Effect on Adult Catfish (Clarias gariepinus) [DOI]
  7. 7 Acute toxicity of the root extract of Jimson's weed (Datura Innoxia) to the African catfish (Clarias gariepinus) fingerlings [DOI]
  8. 8 Histopathological changes in the gill and liver of Clarias gariepinus exposed to acute concentrations of Vernonia amygdalina
  9. 9 Toxicity of pawpaw (Carica papaya) seed powder to sharptooth catfish Clarias gariepinus fingerlings and effects on haematological parameters [DOI]
  10. 10 Histopathological Alterations In Gills Of Fingerlings Of Clarias Gariepinus (Burchell, 1822) Following Sublethal Acute Exposure To Hevea Brasiliensis
  11. 11 Toxicity of Crude Oil to Fresh Water Shrimp, Macrobrachium macrobrachion and Macrobrachium vollenhovenii From Nigerian Coastal Water [DOI]
  12. 12 Histopathological changes in the gill, liver and intestine of Heteropneustes fossilis (Bloch) treated with three dry seed extracts [DOI]
  13. 13 International Journal of Environment and Pollution Research [DOI]

Cited by 2

2 citations reported by external sources — individual citing-article records aren't available to list yet.

Related research

Article metrics

Real usage data collected on this platform.

0

Page views

0

PDF downloads

0

Outbound clicks

2

Citations

Views by country

Approximate, from request IP at view time — not citizenship or institution. Countries with fewer than 5 views are grouped as "Other".

No views recorded yet.

Traffic sources

Referring site, by host.

No traffic recorded yet.

Views and downloads exclude known bots/crawlers. Citations combines this platform's own DOI-resolved index with each external source's own reported total — see Cited by above for individually listed citing works. Last refreshed 0 seconds ago.