Trophic status of three fish species in Obueyinomo River, Edo State, Nigeria

2018 ◽  
Vol 27 (1) ◽  
pp. 55
Author(s):  
G.N. Agali ◽  
C.U. Edema
Keyword(s):  
Fish Species ◽  
Trophic Status ◽  
Edo State

scholarly journals Zooplankton composition and trophic status of hydrobionts of the Laptev and East Siberian seas

2019 ◽  
Vol 59 (6) ◽  
pp. 987-997
Author(s):  
K. M. Gorbatenko ◽  
S. I. Kiyashko
Keyword(s):  
Fish Species ◽  
Trophic Status ◽  
Northwestern Part ◽  
Gut Content Analysis ◽  
Boreogadus Saida ◽  
Gut Content ◽  
Summer Period ◽  
East Siberian Sea ◽  
Dominant Fish ◽  
The Laptev Sea

Species composition, density, biomass and distribution of zooplankton on shelf and slope of northwestern part of the Laptev Sea and shallow-water shelf of the East Siberian Sea were studied in 2015 summer period. Using analysis of stable isotopes of carbon (13 С) and nitrogen (15N), trophic status of abundant zooplankton and fish species, and their positions in food webs of these two seas, were compared. Gut content analysis, as well stable isotope data, showed mutual changes in the trophic status of dominant fish species arctic cod, Boreogadus saida, with age.

Trophic status and metal bioaccumulation differences in multiple fish species exposed to coal ash-associated metals

2012 ◽  
Vol 85 ◽  
pp. 30-36 ◽  
Author(s):  
Ryan R. Otter ◽  
Frank C. Bailey ◽  
Allison M. Fortner ◽  
S. Marshall Adams
Keyword(s):  
Fish Species ◽  
Trophic Status ◽  
Coal Ash ◽  
Metal Bioaccumulation

scholarly journals Endoparasites of fresh water fishes from rivers in Edo State, Nigeria

2021 ◽  
Vol 18 (4) ◽  
pp. 197-204
Author(s):  
E.C. Osimen ◽  
L.I. Anagha
Keyword(s):  
Fresh Water ◽  
Fish Species ◽  
Parasitic Infection ◽  
Infected Fish ◽  
Fish Parasites ◽  
Fish Samples ◽  
Edo State ◽  
Niger River ◽  
Camallanus Cotti ◽  
River Niger

Parasites of fish constitute one of the major problems to fish health. Parasites of fish have been a great concern since they often cause disease conditions in fishes. This study described the parasitic faunas of eight fresh water bodies in Edo state (Ikpoba river, Ogba river, Ujogba river, Niger river at Illushi, Obe river, Gelegele river, Niger river at Agenebode and Osomegbe river). The duration of fish sampling was from October, 2017 to November, 2017.The fish samples (whole catch sourced from fishermen) were collected for identification, morphometric analysis and examination for the presence of parasites. One-way ANOVA and Tukey Honest Test were used to compare the data among size classes at the level of p <0.05. Three orders (Lepidosirenformes, Siluriformes and Polyteriformes), eight families  (Protopteridae, Clariddidae, Channiddae, Polypterididae, Melapteridae, Clarotidae, Cichlidae and Lorcariidae) and fourteen genera were examined. The study had an overall prevalence of 25.34%. The highest prevalence of fish parasitic infection was recorded in Niger river along Agenebode. Overall, parasite taxa recovered were nematodes (65.50%), trematodes (27.00%), cestodes (4.27%) and acanthcephalans (3.27%). The most infected fish species was Clarias gariepenus (13.77%). The helminth taxa (nematodes) had the highest prevalence of parasites (65.50%). The largest number of parasites isolated was Camallanus cotti (30.43%) and Procamallanus laevionchus (17.39%). This study showed river Niger at Agenebode with most parasitic prevalence, nematodes as the most prevalent parasitic taxa and Clarias  gariepenus as the most infected fish species. Keywords: Edo state, Freshwater fishes, Fish parasites, Helminths, Parasite taxa, Nigeria

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