Morphological Variation of Cichlids From Kainji Lake, Nigeria By

Olufeagba, S.O.; Aladele, S. E.; Okomoda, Victor Tosin; Sifau, M O; Ajayi, D A; Oduoye, O T; Bolatito, O A; Nden, D S; <, Fabunmi-Tolase A.S.; Hassan, T

doi:10.5376/ija.2015.05.0026

ija

2015

DOI: 10.5376/ija.2015.05.0026

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Morphological Variation of Cichlids From Kainji Lake, Nigeria By

S.O. Olufeagba¹,

S. E. Aladele²,

Victor Tosin Okomoda³

et al.

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2024

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Cited by 3 publications

(1 citation statement)

References 31 publications

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“…Oreochromis niloticus (1.85). This finding is similar to that ofOlufeagba et al, (2015) who observed a negative allometric growth pattern in the cichlids species found in Kainji Lake, except T. zilli which has a positive allometric growth pattern. This also agrees with the findings of Jenyo-Oni et al,(2014), who also found negative allometric growth in two cichlids species Coptodon zillii and Oreochromis niloticus found in lower Ogun River wetlands, Lagos, Nigeria.…”

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confidence: 91%

Species Composition, Size Distribution, Condition Factor and Growth Pattern of Cichlids From Zobe Reservoir, Dutsin-Ma, Katsina State, Nigeria.

ABUBAKAR¹,

Bichi²,

Dauda³

2023

FUDMAJAAT

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The species composition, size distribution, condition factor and growth pattern of cichlids from Zobe reservoir Dutsin-Ma, Katsina State was investigated between August and November 2022, with a view to understanding the distribution and well-being of cichlids in the water body. One hundred (100) cichlids were sampled from two (2) major landing sites (Makera and Garhi) of the reservoir, the fish were identified and separated before being transported in an ice box to the laboratory Biology Laboratory of the Federal University Dutsin-ma. At the laboratory, the length was measured to the nearest centimeter using a ruler while a sensitive weighing scale was used to measure the weight in grams. The results showed that four species were identified; Oreochromis niloticus (40), Oreochromis aureus (21), Sarotherodon galilaeus (21) and Coptodon zilli (18). The mean total length and weight were significantly higher (P<0.05) in O. niloticus compared to other species. The least was observed in O. aureus although it was not different significantly compared with C. zilli and S. galilaeus. The condition factor (K) of >1 was obtained in all the species with O. niloticus having the highest value of 2.26 which was significantly higher than 1.48 observed in O. aureus. All the species showed negative allometric growth, however, C. Zilli and O. aureus were very close to isometric growth with b values of 2.96 and 2.85 respectively. Although negative allometric growth was observed in all the species, the K values of >1 showed that all the cichlids in the Zobe reservoir are healthy and in good biological condition

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supporting

confidence: 91%

Species Composition, Size Distribution, Condition Factor and Growth Pattern of Cichlids From Zobe Reservoir, Dutsin-Ma, Katsina State, Nigeria.

ABUBAKAR¹,

Bichi²,

Dauda³

2023

FUDMAJAAT

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Ecomorphology of Selected Penaeid Shrimp in the Coastal Marine Waters of Tamil Nadu (Southern India)

Mohale,

Jawahar,

Jayakumar

et al. 2024

Journal of Coastal Research

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Variability of Morphometric of Oreochromis niloticus, Sarotherdon galilaeus and Coptodon zilli from the Nile and its tributaries in Sudan

Hassan¹,

Mahmoud²

2021

CCIJAVS

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This study assessed morphological variations of Oreochromis niloticus, Sarotherodon galilaeus and Coptodon zilli collected from the Nile and its tributaries. Nineteen morphometric measurements were recorded from each specimen. Data was subjected to discriminant function (CDF) analysis, Wilks' lambda test, t-test and Leave-one-out crosses validation to determine rate of divergence among species. The t-test showed wide variability in the significance (p>0.05 to p0.01) species and site wise in morphometric trait/total length and morphometric trait/head length. The body weight/standard length ratio was consistently significant (p<0.05). Function 1 and Function 2 of CDF clearly separated between O. niloticus and S. galilaeus from Sinnar as well as in Al Sabaloga, and between O. niloticus and C. zilli from Khashm El Girba as revealed by the high significance of Wilks lambda (p<0.003, p<0.000 and p<0.000, respectively). Based on 19 morphometric traits Leave-one-out reclassified the cross validated group at 66.7% and 84.6%, O. niloticus and S. galilaeus from Sinnar, respectively. From Al Sabaloga it reclassified O. niloticus at 97.9% and S. galilaeus at 0.0% due to its small sample size. In Khashm El Girba the cross validated group reclassified O. niloticus at 100% and C. zilli at 94.4%, respectively. Comparison between the values and variables clearly reduced the overlap when 3 traits were used instead of 19 traits. Cluster analysis placed S. galilaeus from Al Sabaloga in a separate branch of the dendrogram due to its small sample size.

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Morphological Variation of Cichlids From Kainji Lake, Nigeria By

Cited by 3 publications

References 31 publications

Species Composition, Size Distribution, Condition Factor and Growth Pattern of Cichlids From Zobe Reservoir, Dutsin-Ma, Katsina State, Nigeria.

Species Composition, Size Distribution, Condition Factor and Growth Pattern of Cichlids From Zobe Reservoir, Dutsin-Ma, Katsina State, Nigeria.

Ecomorphology of Selected Penaeid Shrimp in the Coastal Marine Waters of Tamil Nadu (Southern India)

Variability of Morphometric of Oreochromis niloticus, Sarotherdon galilaeus and Coptodon zilli from the Nile and its tributaries in Sudan

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