The biology of Clarias ebriensis Pellegrin, 1920 (Osteichthyes: Clariidae) in an African rainforest river basin

Ezenwaji, Henry Maduka Godfrey

doi:10.1016/s0165-7836(00)00291-5

Cited by 18 publications

(12 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The low FI in the month of November coincides with the peak breeding period for C. liocephalus (Yatuha 2012, unpublished data). Decline in FI during the peak reproductive period has been reported in other fish species (Dadzie ; Ezenwaji, ; Preciado et al ., ). In this study, we observed that ripe gonads, especially in females, filled almost the entire body cavity.…”

Section: Discussionsupporting

confidence: 61%

“…Aquatic insects in general and dipteran larvae in particular were found to be the most frequent prey in the diet of C. liocephalus across all sites, showing C. liocephalus' preference for dipteran larvae. This preference has been reported in C. gariepinus (Yalcin, Akyurt & Solak, ) and C. ebriensis (Ezenwaji, ) and has been attributed to the high abundance of the prey in the habitat (Yalcin, Akyurt & Solak, ). Clarias liocephalus seem to forage on the available and dominant prey as a generalist, but prefers dipteran larvae when they are present in the habitat.…”

Section: Discussionsupporting

confidence: 56%

See 1 more Smart Citation

Diet and feeding habits of the small catfish,Clarias liocephalusin wetlands ofWesternUganda

2012

View full text Add to dashboard Cite

Clarias liocephalus is an air-breathing catfish inhabiting wetland and river systems in East Africa. This catfish is in high demand for sale as live bait in the Nile perch fishery of Lake Victoria and equally important in the diet of local communities in the lake basin. Wetland loss and increasing fishing pressure potentially threaten the persistence of C. liocephalus; however, little information exists on the ecology of this species to permit evaluation of current threats. This study quantified dietary characteristics of C. liocephalus from heavy and lightly fished wetlands in Western Uganda using numeric, gravimetric and volumetric indices on 492 stomach samples collected over one year. Clarias liocephalus was significantly smaller in three heavily fished sites, relative to the one in-park site, likely a reflection of a size-selective fishery. Across sites, C. liocephalus was a generalist feeder whose diet was dominated by aquatic dipteran larvae and plant material. The broad niche gives C. liocephalus an ecological advantage to forage effectively on a wide selection of prey. The significant presence of plant material shows that the species may utilize plant protein, an important consideration of diet requirements should the species be selected for aquaculture.

show abstract

Section: Discussionsupporting

confidence: 61%

Section: Discussionsupporting

confidence: 56%

Diet and feeding habits of the small catfish,Clarias liocephalusin wetlands ofWesternUganda

2012

View full text Add to dashboard Cite

show abstract

“…In Okpara Stream, males of H. fasciatus reached their size at first maturity at a total length (L 50 = 10.98 cm-TL) higher than that of females (L 50 = 9.22 cm -TL). This sexual difference in L 50 , mostly tardive in males was reported for several fish species such Chrysichthys nigrodigitatus and Chrysichthys auratus (Lalèyè et al, 1995), Clarias ebriensis (Ezenwaji, 2002), Labeo horie (Dadebo et al, 2003), Labeo victorianus (Rutaisire and Booth 2005); Heterotis niloticus (Adité et al, 2006), Clarias gariepinus, Clarias ebriensis, Schilbe intermedius, Schilbe mystus, Synodontis schall (Chikou et al, 2011), Sarotherodon galileus (Gbaguidi and Adite 2016) etc. Genetic factors including sexual dimorphism of growth and habitat conditions such as physicochemical variations and food resource availabilities could greatly affect the size at first sexual maturity (Wootton, 1998;Koné et al 2011;Tembeni et al 2014).…”

Section: Length At First Sexual Maturation (Tl50)supporting

confidence: 68%

Aspects of life history patterns of the cichlid fish Hemichromis fasciatus Peters, 1857 from Okpara Stream, Northern Benin, West Africa

Imorou¹,

Adité²,

Arame³

et al. 2020

Aquat Res

View full text Add to dashboard Cite

The piscivorous cichlid Hemichromis fasciatus dominated the Okpara Stream of Oueme River in Benin, and numerically made 29.49% of the fish community. Some aspects of the reproductive biology of this fresh/ brackish water cichlid were examined to evaluate the spawning patterns and establishment of the species in Okpara Stream. Hemichromis fasciatus individuals were sampled monthly during 18 months from December 2015 to May 2017 with seine, cast nets, gillnets, hooks and traps. Among the 2,818 individuals sampled, 55.43% were females and 37.33% were males with a sex-ratio of 1.49:1. The species showed low fecundities ranging between 113 and 1,716 oocytes. Length at first sexual maturity (L50) in Okpara Stream were reduced, 9.22 cm-TL (females) and 10.95 cm-TL (males), indicating an early maturation. The ovarian structure give evidence of multiple spawning and the species reproduces all seasons. In Okpara Stream, Hemichromis fasciatus exhibited a life history strategy between "r" and "K" selection, yet, close to "r" selection. Because the length at first capture (Lc 50 = 8.78 cm) is lower than sizes at first sexual maturity, stocks of spawners could be reduced and leading to low recruitment.

show abstract

“…This apart from intermittent deaths reduces fish tegument value and patho-physiology of visceral organs that provide micro-habitats for them in their fish hosts by the excysted metacercariae. Therefore, the chance to have most reproductive success than other species depends on availability of more excysted forms in each host (Echi et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Differences in host-infection patterns of clinostomatids (Clinostomatidae) in human disturbed aquatic ecosystems against undisturbed lake

Echi¹,

Ojebe²

2016

Braz. J. Biol. Sci.

View full text Add to dashboard Cite

Scarcely use of Opi Lake for many years (1995-2007) due to road cut to its site by erosion during which parasite survey of its major fish composition was carried out established host specificity disparity especially when compared with entirely human disturbed Oguta Lake and Anambra River Basin in Southeast, Nigeria. The infection prevalence had dispersed infection in mainly skin musculature micro-habitat in encysted forms in the later reservoirs. Conversely, the parasites occupied more host micro-habitats of eye, skin and buccal cavity with high rate of excysted forms in the former reservoir. The record of mainly encysted forms in the latter reservoirs is indicative of immune resistance host-parasite relationship. Also, human disturbance which has complimentary environmental influence on both parasite and host upsets parasite-host location strategies in aquatic communities within human vicinities where the reservoirs are used for numerous domestic chores. To the best of our knowledge, hitherto the latter had little or no clinostomatids parasites report.

show abstract

The biology of Clarias ebriensis Pellegrin, 1920 (Osteichthyes: Clariidae) in an African rainforest river basin

Cited by 18 publications

References 17 publications

Diet and feeding habits of the small catfish,Clarias liocephalusin wetlands ofWesternUganda

Diet and feeding habits of the small catfish,Clarias liocephalusin wetlands ofWesternUganda

Aspects of life history patterns of the cichlid fish Hemichromis fasciatus Peters, 1857 from Okpara Stream, Northern Benin, West Africa

Differences in host-infection patterns of clinostomatids (Clinostomatidae) in human disturbed aquatic ecosystems against undisturbed lake

Contact Info

Product

Resources

About