Comparison of Length and Weight Characteristics of O. niloticus and O. aureus from Garmat Ali River, Iraq

Mohamed, Abdul-Razak M.; Salman, Ayat N.

doi:10.9734/ajfar/2021/v11i230200

Cited by 3 publications

(1 citation statement)

References 22 publications

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“…Uses of native predatory fish as biocontrol agents are considered worldwide as an ecofriendly solution for controlling the growth and reproduction of unwanted aquatic organisms, including invasive alien fish species [18][19][20][21]. Such approaches could be a sustainable alternative solution instead to using locally available piscicides to avoid any post-toxic impacts on the perennial water resources of Purulia, which may minimize the chances of compromising the regular use of water by the communities.…”

Section: Introductionmentioning

confidence: 99%

Biocontrol of Oreochromis mossambicus Population by Chitala chitala (Hamilton, 1822) in a Composite Carp Culture System of Purulia District in West Bengal, India

Samaddar

Ojha²,

Chatterjee³

et al. 2022

AJRiZ

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Aims: Pond-based carp production in the Purulia district in West Bengal, India is confronted with several challenges. This study aimed to establish an alternative semi-intensive carp production method for the district by addressing an endemic challenge i.e. recruitment of O. mossambicus, through an endangered (EN) and native predatory fish, Chitala chitala. Study Design: Present study has been conducted on two numbers of perennial water resources with 1 ha effective area; where annual production of Indian Major Carps (IMC) and impact of O. mossambicus and C. chitala on the same culture system have been compared. Place and Duration of Study: This study was conducted in farm conditions from 2018 to 2020, in two freshwater earthen ponds, Gosai Bundh (N23.47737/E86.79032) and Bara Notun Bundh (N23°46439/E86°65080), at Uluberia village under Kashipur Block of Purulia district in West Bengal, India. Methodology: Stocking density of Indian Major Carp (IMC) fingerlings was maintained at 8000 numbers (4:3:3 ratio of catla : rohu : mrigala) per ha (T1). After getting contaminated by O. mossambicus, wild C. chitala juveniles have been introduced in the similar facility (T2). Results of T1 and T2 were compared with control pond (C) containing IMC only. Recruitment of O. mossambicus and growth performance of C. chitala and IMCs determined periodically and annually. Results: Increasing growth of C. chitala showed contrasting impact over O. mossambicus fry recruitment. Survival percentage of C. chitala remains high in T2. While, poorest growth performance of IMCs have been observed in T1. Among IMC’s C. catla showed best survivality in every experimental ponds. Conclusion: Excessive recruitment of the O. mossambicus population can be controlled by C. chitala in a pond-based IMC culture system.

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Section: Introductionmentioning

confidence: 99%

Biocontrol of Oreochromis mossambicus Population by Chitala chitala (Hamilton, 1822) in a Composite Carp Culture System of Purulia District in West Bengal, India

Samaddar

Ojha²,

Chatterjee³

et al. 2022

AJRiZ

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Weight-length relationship and relative condition factor of Micropterus salmoides (Lacépède, 1802), Cyprinus carpio (Linneaus, 1758) and Oreochromis niloticus (Linnaeus, 1758) caught in the Al-Massira Dam Lake

et al. 2021

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The current study describes the length-weight relationships and relative condition factors (Kr) of three species during the period (September 2020January 2021). For this purpose, 137 fish were sampled. The “size-weight”relationships thus established for each species are: Largemouth Bass: Tw = 0.0055Tl3.2816, Cyprinus carpio: Tw = 0.0148 Tl2.9417 and Oreochromis niloticus: Tw = 0.0304 Tl2.8386. These results showed positive allometry for the first species (Micropterus salmoides) and a negative one for the two other species. The relative condition factor (Kr) is higher than one, which shows that these species are in good conditions at the Al-Massira dam.

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Length-weight relationship and condition factor for five common fish species in a recently constructed reservoir (Tugwi-Mukosi Dam) - Zimbabwe

Mabika,

Magqina,

Makoni

2024

Aquat Res

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Tugwi-Mukosi is a recently constructed reservoir in the Masvingo Province of Zimbabwe. The objective of the study was to estimate the length-weight relationship (LWR) and condition factors (K) of five freshwater fish species collected from the dam. Three hundred eighty-seven fish samples were caught by gill nets and sein between January and September 2021. The estimated exponent value b varied between 2.814 and 3.228 among the fish species. The b values indicated that three species (Oreochromis niloticus, Coptodon rendalli and Micropterus salmoides) followed negative allometric growth (b < 3). In contrast, Clarias garipinus showed isometric growth (b = 3), while Oreochromis mossambicus exhibited positive allometric growth (b > 3). More than 94% (R2 > 0.94) of the weights (responses) variations were explained by the models, so the models fit the data well. The K values of all the fish species, except for C. gariepinus, ranged between 1.3 - 2.2; this indicates that these species are doing well in the reservoir. This observation suggests that Tugwi-Mukosi currently provides a favourable habitat for the fish species. The current study's findings will give valuable baseline data for assessing the status of fish populations and conducting ecological surveys for future fish conservation and management.

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Comparison of Length and Weight Characteristics of O. niloticus and O. aureus from Garmat Ali River, Iraq

Cited by 3 publications

References 22 publications

Biocontrol of Oreochromis mossambicus Population by Chitala chitala (Hamilton, 1822) in a Composite Carp Culture System of Purulia District in West Bengal, India

Biocontrol of Oreochromis mossambicus Population by Chitala chitala (Hamilton, 1822) in a Composite Carp Culture System of Purulia District in West Bengal, India

Weight-length relationship and relative condition factor of Micropterus salmoides (Lacépède, 1802), Cyprinus carpio (Linneaus, 1758) and Oreochromis niloticus (Linnaeus, 1758) caught in the Al-Massira Dam Lake

Length-weight relationship and condition factor for five common fish species in a recently constructed reservoir (Tugwi-Mukosi Dam) - Zimbabwe

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