Publisher: IJFAS
Title: Survey of parasitic fauna of some fishes from Osun river, Osun state, southwestern, Nigeria
Author: Adewole, Henry Adefisayo; Salawu, Saheed Adekola; Onana, Edith Ediseimokumoh; Ogunjimi, Patricia Oluwatobi; Adesokan, Roseline Adewumi; Faleye Adefiola Lydia
Date of Publication: 2023
Type: Academic Journal Article, Study Survey
Volume: 11 (Issues 4 and 5 mentioned)
Citation style language: Not specified

Pollution Type:

• Effluent discharges from agricultural practices or farm lands

• Industrial effluent discharges

• Sewages

• Run-offs from construction and mining activities

• Gold mining activities

• Anthropogenic activities

Impact Dimension:

• Negative impact on freshwater quality

• Physiological impairment of aquatic biota and community structure

• Breakdown of fish immune system

• Proliferation of parasites in fish

• Fish diseases

• Pathological alterations in fish visceral organs

• Poor fish quality

• Reduced fish growth

• Poor fish spawning

• Fish mortality

• Economic loss in fisheries

• Decreased quality/quantity of fishery products

• Reduced fish production and species richness

Actor Type:

• Fishermen

• Artisanal miners

• Government

Response Type:

• Pollution control

• Regular examination of water bodies

• Government intervention

Evidence Type:

• Primary research study with survey methodology

• Fish specimen dissection and parasite identification

• Standard parasitological parameters (prevalence, intensity)

• Chi-square statistical analysis (P<0.05)

• Diversity indices (Shannon-Weiner, Evenness)

Policy Mention:

• Advocacy for pollution control and water monitoring

• Government intervention for water quality management

Key Finding:

• 22.9% parasitic prevalence (49/258 fish infected)

• 10 parasite species identified (cestodes, trematodes, nematodes, etc.)

• Higher infection in female fish (non-significant) 

• Stomach/intestine show highest parasite intensity

• Mormyrus rume: highest prevalence (42.85%)

• 77.78% parasites in alimentary tract

• Monoxenous/endoparasites more diverse than heteroxenous/ectoparasites

• Anthropogenic pollution directly impacts fish health and production
  Health Risk Projection: No explicit human health risks mentioned; focuses on fish health and economic impacts
  URL: www.fisheriesjournal.com
  DOI: https://doi.org/10.22271/fish.2023.v11.i4c.2850

ISBN, ISSN, PMID:

• P-ISSN: 2394-0506

• E-ISSN: 2347-5129