Morphometric differentiation of Clarias gariepinus strains in Nigerian water bodies using multivariate analysis

2016 ◽  
Vol 30 (2) ◽  
pp. 295
Author(s):  
OR Oguntade ◽  
O Omidiji ◽  
OA Ayinla
Keyword(s):  
Multivariate Analysis ◽  
Clarias Gariepinus ◽  
Water Bodies ◽  
Morphometric Differentiation

Straminipiles (Oomycota) developing on the eggs of an African catfish, Clarias gariepinus Burchell in water bodies of Poland

2013 ◽  
Vol 7 (20) ◽  
pp. 2378-2384 ◽  
Author(s):  
Czeczuga Bazyli ◽  
Czeczuga Semeniuk Ewa ◽  
Semeniuk Adrianna ◽  
Semeniuk Janusz
Keyword(s):  
Clarias Gariepinus ◽  
Water Bodies ◽  
African Catfish

scholarly journals Cellular stress response, induction of micronuclei and DNA strand breaks in two common fish species of Rivers and Reservoirs in Ilorin, North Central, Nigeria.

2021 ◽  
Author(s):  
Abass Toba Anifowoshe ◽  
Segun Olayinka Oladipo ◽  
Arinola N Oyinloye ◽  
Augusta Opute ◽  
Edward Odofin ◽  
...  
Keyword(s):  
Fish Species ◽  
Physicochemical Parameters ◽  
Clarias Gariepinus ◽  
Water Bodies ◽  
Industrial Wastes ◽  
Cellular Stress Response ◽  
Single Strand Break ◽  
North Central ◽  
Tilapia Zillii ◽  
Rivers And Reservoirs

Abstract Most rivers and reservoirs in the world are prone to pollution because of indiscriminate disposal of domestic, agricultural and industrial wastes into the water bodies. In this study, we investigated the ecotoxicological potential this could pose in fish species collected from major reservoirs and rivers in Ilorin, north central, Nigeria. Water samples were collected and the physicochemical parameters were examined from five different sites; Unilorin reservoir, Asa reservoir, Apodu reservoir, Asa river (Unity) and Asa river (Harmony). We determined serum biochemical (AST, ALT, ALP, serum ALB), histopathological (gill, lungs), serum antioxidant enzyme responses (SOD, CAT, GPx, GR, GST) which serves as a biomarker for evaluating oxidative stress while micronucleus and comet assays were used to detect level of DNA damage in Tilapia zillii and Clarias gariepinus. The physicochemical parameters and heavy metal analysed (Pb, Mn, Cu, Ni, N, P, Fe, Cl, and Ca) in the five different water bodies were below the permissible limits of WHO and USEPA except the DO, which was very low in the two rivers, indicating hypoxia. Our results showed significant increase in biochemical and hematological profiles, histopathological lesions in the gill and lungs, inductions of MN, NA and DNA single strand break in Tilapia zillii and Clarias gariepinus collected from Asa rivers compared to the Unilorin, Apodun and Asa reservoirs. This may be attributed to indiscriminate discharge of effluents from nearby industries, agricultural and domestic wastes into the rivers.

Elevage en eau recyclée du poisson-chat africain Clarias gariepinus au Bénin: historique et situation actuelle de la société Royal Fish SA du Benin.

2020 ◽  
Author(s):  
Maurice Dandjinou
Keyword(s):  
High Performance ◽  
Clarias Gariepinus ◽  
Production Capacity ◽  
Aquatic Organisms ◽  
Water Bodies ◽  
African Catfish ◽  
Aquatic Animal ◽  
Production And Distribution ◽  
Local Actors ◽  
Frozen Fish

Abstract Aquaculture, the cultivation of aquatic animal and plant organisms is a booming sector worldwide. The annual production of fish, crustaceans, molluscs and algae by aquaculture is estimated at 47% in 2006 according to the FAO, 2009. It is today the animal production showing the strongest growth (+ 8.7% per year since 1970 excluding China). Due to the depletion of wild stocks and the establishment of international fishing quotas, aquaculture must develop further to meet the growing global demand for fish and other aquatic organisms. In Benin, the fishing sector remains one of the poor relatives of the economy (2% of GDP - Proinvest 2002Agro-ind 2002) and fishermen (around 50,000) and fish wholesalers (around 20,000) mostly women are among the most deprived sections of the country. The fish production of water bodies continues to decrease despite the intensification of fishing (117 fishermen per km² against 9 in the sub-region: Source MAEP - State of play on Fishing) and the fish needs of the population continues to grow, hence the constant and massive importation of frozen fish by very powerful private companies. Large fish species (mostly catfish) are overexploited and have nowadays become very rare in the various fresh and brackish water fisheries of the country. As part of the diversification of the livelihoods of fishermen in order to sustainably reduce the pressure exerted on the water bodies, the current Ministry of Agriculture, Fisheries and Livestock has provided in its program of activities to pay particular attention to the promotion of aquaculture production and the repopulation of overexploited water bodies in Benin. The company Royal Fish Benin SA, by choosing to first develop the culture of African catfish - Clarias gariepinus - is part of this dynamic encouraged by the State of Benin which aims to reduce poverty in Benin. Royal Fish Benin is a Beninese public limited company specializing in the production, breeding, sale of African catfish Clarias gariepinus in different forms: fry, fresh table fish, smoked fish etc. It also ensures the sale of high-performance, quality food at the best cost. Finally, it offers training courses for local actors and producers. Royal Fish Benin has a production capacity of around 220 tonnes of table fish and over 1,000,000 fingerlings. This innovative project began on April 21, 2008 and saw the first sales of table fish in September 2008. Today the results obtained allow us to conclude that the project exceeded its expectations in terms of production and distribution. However, it is still too early to comment on the economic viability of the company.

scholarly journals Induction of Micronuclei, Cellular Stress Response, and DNA Strand Breakage in Two Common Fish Species From Rivers and Reservoirs in Ilorin, Nigeria.

2021 ◽  
Author(s):  
Abass Toba Anifowoshe ◽  
Segun Olayinka Oladipo ◽  
Arinola N Oyinloye ◽  
Augusta Opute ◽  
Edward Odofin ◽  
...  
Keyword(s):  
Fish Species ◽  
Clarias Gariepinus ◽  
Physicochemical Characteristics ◽  
Strand Break ◽  
Water Bodies ◽  
Industrial Wastes ◽  
Cellular Stress Response ◽  
Single Strand Break ◽  
Dna Strand ◽  
Rivers And Reservoirs

Abstract Indiscriminate discharge of home, agricultural, and industrial wastes into water bodies, most rivers and reservoirs around the world are becoming polluted. The ecotoxicological potential of this in fish species gathered from important reservoirs and rivers in Ilorin, Nigeria, was explored in this study. Unilorin reservoir, Asa reservoir, Apodu reservoir, Asa river (Unity), and Asa river (Unity) water samples were collected and physicochemical characteristics were investigated at five distinct sites: Unilorin reservoir, Asa reservoir, Apodu reservoir, Asa river (Unity), and Asa river (Unity) (Harmony). In Tilapia zillii and Clarias gariepinus, we measured serum biochemical (AST, ALT, ALP, serum ALB), histopathological (gills, lungs), and serum antioxidant enzyme responses (SOD, CAT, GPx, GR, GST) as a biomarker for oxidative stress, while micronucleus and comet assays were used to detect DNA damage. Except for DO, which was very low in the two rivers, the physicochemical parameters and heavy metals evaluated in the five separate water bodies were within the allowed levels of the NSDWQ and WHO standard for drinking water. In comparison to the Unilorin, Apodu, and Asa reservoirs, a slight increase in Pb was observed across the five sampling sites, which could contribute to increased biochemical and haematological profiles, histopathological lesions in the gill and lungs, inductions of MN, NA, and DNA single strand break in T. zillii and C. gariepinus collected from Asa rivers. This could be due to the indiscriminate dumping of effluents from adjacent industries, agricultural wastes, and household wastes into rivers.

scholarly journals Growth Status and Parasitic Fauna of Clarias gariepinus Collected from Ogbese River and Owena River, South-West Nigeria

2019 ◽  
pp. 1-12
Author(s):  
A. O. Abidemi-Iromini ◽  
R. A. Adelegan
Keyword(s):  
Natural Waters ◽  
Condition Factor ◽  
Clarias Gariepinus ◽  
Aquatic Organisms ◽  
Water Bodies ◽  
Wet Season ◽  
Parasitic Fauna ◽  
Fish Samples ◽  
Disease Condition ◽  
Diphyllobothrium Latum

Aims: To determine condition status and identify parasitic fauna in intestine, gills and skins of Clarias gariepinus collected from two natural waters: Ogbese River (River A) (Longitude 5°26'E' and Latitude 6°43'N), and Owena River (River B) (Longitude 5.03E and Latitude 7.03N) in Ondo state, Nigeria respectively. Study Design: Laboratory-experimental design was used in this study. Place and Duration of Study: 120 live C. gariepinus African Mud Catfish were collected by the assistance of fishermen using cast net during the wet season during April to July 2016 from the two natural water bodies (Ogbese River and Owena River). Methidology: Fish were transported live to the laboratory for examinations. Length (cm) and weight (g) measurement of fish were determined. Condition factor (K), isometric value (b) and regression coefficient were determined. Fish samples were examined using electronic Microscope (x 400 Mag.) by dissecting fish to remove organs (Intestines, gills and skins) for parasites occurrence (s). Descriptive and analytical statistics were used to analyse the data obtained. Results: The condition factor for all C. gariepinus samples collected from both Rivers were less than one (<1), which indicated that the health status of the fish is biased, and the environment is not conducive. The parasitic examination carried out revealed that seventy-eight (65%) C. gariepinus fish samples were infested; while 42 (35%) of fish samples showed no parasite infestation. A total of Ninety-six (96) individual parasites were recovered from River A while a total of two hundred and twelve (212) individual parasites were recovered from River B. A total of eight (8) different parasites species were recovered while their percentage of occurrence was recorded. These include Ambiphrya spp. (4.17%), Camallanus spp. (6.25%; 2.83%), Capillaria spp. (16.98%), Chilodonella spp. (14.58%), Dactylogyrus spp. (64.58%; 5.66%), Diphyllobothrium latum (10.42%; 4.72%), Gyrodactylus spp. (61.32%) and Protoopalina symphysodonis (8.49%). Conclusion: The water bodies need to be protected against further pollutants to prevent disease condition for the benefit of aquatic organisms and public health.

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