The results indicated different habitat responsible for its current genetic structure. Significant differences p nomuraea rileyi symptoms on soybean looper. This species was also characterized by the lowest values of hl, dsl, adl, anl, dsh, ed1, pth, anh, dplan and dplad table 1. Research article proximate composition of nutrients in fresh. Our pdf merger allows you to quickly combine multiple pdf files into one single pdf document, in just a few clicks. The uptake of the pesticides lindane, pentachlorophenol pcp, and propoxur, which are frequently used on farms, and in industries as well as by loggers and timber men on wood were studied in concrete ponds at the university of cape coast, in ghana. Studies were conducted on the fecundity, gonadosomatic index and the spawning period of the species. Absolute fecundity of 28 086 eggs found in 64 cm fish in this study is the highest so far reported for c. Health status of chrysichthys nigrodigitatus in response to aquatic pollution in epe, lagos and ologe lagoons, southwest nigeria kingsley chukwuemeka kanu1, emmanuel taiwo idowu2 1department of environmental management and toxicology, michael okpara university of agriculture, pmb 7267 umudike, nigeria. Soda pdf merge tool allows you to combine pdf files in seconds. Studies were carried out to determine the toxicity of some selected pesticides on fresh water fish in a tropical environment. To understand the genetic variations and population structure in nigerias niger delta.
It is a highly valuable fish species amongst the indigenous african populations. This free online tool allows to combine multiple pdf or image files into a single pdf document. It occurs in shallow waters of lakes nigrodigitatus of the two other species c. The results showed low levels of genetic diversity in the kaduna river. The lengthweight relationship and condition factor of. Health status of chrysichthys nigrodigitatus in response to. Eleven samples of chrysichthys nigrodigitatus and one sample c. A case study of new calabar river basin theodore athanasius allison department of anatomy, faculty of basic medical science, college of health sciences, university of port harcourt, nigeria. Genetic diversity of chrysichthys nigrodigitatus in the lagos. Lagos lagoon lies between latitude 6o266 o37 n and longitude 3234o20 e while agboyi creek lies around. While every effort has been made to provide the most reliable and uptodate information available, ultimate legal requirements with respect to species are contained in.
The estuarine catfish chrysichthys nigrodigitatus is a prized food fish in nigeria especially in the niger delta region. In chrysichthys nigrodigitatus however, the orders of accumulation were gills 51. The lengthweight relationship and condition factor of chrysichthys nigrodigitatus lacep ede, 1803 from amassoma river flood plains. Hosted by the usgs core science analytics and synthesis. Fecundity, gonadosomatic index and spawning period of chrysichthys nigrodigitatus of the lower cross river, nigeria. Merge pdf online combine pdf files for free foxit software. Chrysichthys nigrodigitatus lacepede, 1803 discover life.
Page designed through the cooperative efforts of interagency itis teams. Study of the feeding interrelationship of caranx hippos, chrysichthys nigrodigitatus, ethmalosa fimbriata and mugil cephalus in the lagos lagoon, nigeria, revealed that algae and diatoms formed the main food items of the four fish species. Morphometry and diet of chrysichthys nigrodigitatus lacepede. Histopathological alterations in the liver and kidney. The general trend of accumulations in all the organisms were chrysichthys nigrodigitatus tilapia zillii macrobrachium macrobrachion. There are currently 42 recognized species in this genus. Feeding interrelationship of caranx hippos ligneous. Fingerlings of chrysichthys nigrodigitatus were fed four isocaloric diets at different crude protein levels to determine the optimum protein requirement of the species. It is a widely distributed euryhaline species and inhabits most of the major rivers in africa including nigeria, senegal, gambia, ivory coast, liberia, zaire, and gabon ezenwa, 1981. You can either select the files you want to merge from you computer or drop them on.
The major fishing methods employed for collecting the 600 specimens were cast netting and set netting. The modal length frequency 78 was estimated for class 3635cm. Helminth bioload of chrysichthys nigrodigitatus lacepede 1802 from lekki lagoon lagos, nigeria. Discover lifes page about the biology, natural history, ecology, identification and distribution of chrysichthys nigrodigitatus lacepede, 1803 discover life. Proximate and mineral quality changes in fillets of three. The formolether concentration method was used to examine the samples. Easily combine multiple files into one pdf document. Pdf reproductive strategy of chrysichthys nigrodigitatus. Proximate and mineral quality changes in fillets of three fish species mugil cephalus, chrysichthys nigrodigitatus and oreochrumis niloticus at frozen storage sub 0c afamdi anene 1, ogan i. The mean concentration mean sd of tbars in the liver of c. However, it is not a legal authority for statutory or regulatory purposes.
Endoparasitaemia of chrysichthys nigrodigitatus in a tidal. In those parts where chrysichthys maurus and chrysichthys auratus overlap from liberia to ghana, to the east of the volta, c. The specimens of chrysichthys nigrodigitatus displayed the highest values of opw, nbl, mbll1 and mbll3. Endoparasitic fauna of chrysichthys nigrodigitatus lacepede. Pdf merge combine pdf files free tool to merge pdf online. Endoparasitic fauna of chrysichthys nigrodigitatus. This webapp provides a simple way to merge pdf files. Chrysichthys nigrodigitatus lacepede, 1803, an endangered. Genetic diversity and population structure of chrysichthys. Conatus pharmaceuticals mergers and acquisitions summary mergr. Imeheffects of different processing methods on the proximate composition of chrysichthys nigrodigitatus from great kwa river, nigeria european academic research vol.
Chrysichthys nigrodigitatus lacepede 1802 is a common silver coloured african catfish occurring in nigeria and several west african countries. Claroteidae, with consideration of their biogeography beatrice adepogourene, guy g. One hundred chrysichthys nigrodigitatus were randomly selected from the new calabar river to determine the effect of size and sex on the endoparasitaemia in the blood, heart, liver, kidney and gastrointestinal tract. Cellular biomarker responses of bagrid catfish, chrysichthys. Dec 21, 2017 image 1739001 is of nomuraea fungus nomuraea rileyi symptoms on soybean looper. Effects of different processing methods on the proximate.
The morphometry and diet of chrysichthys nigrodigitatus in epe lagoon were investigated between january and july 2008. Some reproductive aspects of chrysichthys nigrodigitatus. It occurs in shallow waters of lakes nigrodigitatus pdf jul 1, 2019 admin automotive the silver catfish, chrysichthys nigrodigitatus lacepede. The lowest length frequency 1 through the months was estimated for class 8185cm,9195cm and 101105cm. The general trend of accumulations in all the organisms were chrysichthys nigrodigitatustilapia zillii macrobrachium macrobrachion. Experimental study area the study area for the investigation is the lagos lagoon and agboyi creek. How to merge pdfs and combine pdf files adobe acrobat dc. Please practice handwashing and social distancing, and check out our resources for adapting to these times. Combine multiple pdf files into one pdf, try foxit pdf merge tool online free and easy to use. Itis taxonomy is based on the latest scientific consensus available, and is provided as a general reference source for interested parties. Morphometry and diet of chrysichthys nigrodigitatus. Genetic diversity of chrysichthys nigrodigitatus in the.
It implied an urgent need to adopt protection measures to protect it. Helminth bioload of chrysichthys nigrodigitatus lacepede. They belong to the bagridae family and are native to africa. The potential dispersal of the adult and juveniles limited gene flow among locations. Fecundity, gonadosomatic index and spawning period of. Jul 04, 2015 journal of natural sciences research issn 22243186 paper issn 22250921 0921 online vol. Oct 18, 2007 studies were carried out to determine the toxicity of some selected pesticides on fresh water fish in a tropical environment. There is a growing concern over the sustainability of the fishery in the face of climate change and environmental variability. The fish is common in the niger delta where it is a valued source of protein and constitutes the dominant. Conatus pharmaceuticals has acquired 1 company conatus pharmaceuticals has acquired in 1 us state. Photomicrograph of section of liver of chrysichthys nigrodigitatus. Chrysichthys is a genus of claroteid catfishes native to africa.
Lengthweight relationship and condition factor of silver. Open access journal of fisheries and aquatic science issn 18164927 doi. Chrysichthys nigrodigitatus and liza grandisquamis, two fishes that are commonly consumed in nigeria. Catfish chrysichthys nigrodigitatus and mullet liza grandisquamis were sampled from lagos lagoon and agboyi creek and analysed for alphabhc, betabhc, lindane, deltabhc, heptachlor, heptachlorepoxide b, aldrin, dieldrin, endrin, endrin aldehyde, endrin ketone, cischlordane, transchlordane, endosulfan 1, endosulfan 11, endosulfan sulphate, methoxychlor, p,p. Bioaccumulation of heavy metals and parasitic fauna in. Chrysichthys nigrodigitatus lacepede, 1802, also known as silver catfish, occurs in africa, including nigeria.
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