Asian Catfish Clarias batrachus (Linnaeus, 1758) Getting Critically Endangered

Argungu, Lawali Alkali; Christianus, Annie; Arshad, Aziz; Daud, Siti Khalijah; Siraj, Siti Shapor; Rahman, Md. Aminur

doi:10.3923/ajava.2013.168.176

Cited by 18 publications

(10 citation statements)

References 21 publications

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“…A study have shown that n-3 PUFA of marine animals changes dependent on various environmental and biological factors, such as diet of the animals, taxonomy, latitude and water, temperature at which they were caught and harvested [17]. The present study was taken up to assess the impact of different dietary lipids on the carcass fatty acid profile in the edible tissue of Asian catfish C. batrachus and also FA profile enrichment of this commercially important fish which is under threatened stage [18].…”

Section: * Corresponding Authormentioning

confidence: 99%

Impact of dietary fats on fatty acids profile of threatened Asian cafish (Clarias batrachus, Linnaeus, 1758)

2014

J App Biol Biotech

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Section: * Corresponding Authormentioning

confidence: 99%

Impact of dietary fats on fatty acids profile of threatened Asian cafish (Clarias batrachus, Linnaeus, 1758)

2014

J App Biol Biotech

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“…The Asian catfish, Clarias magur, is highly demanded in the markets of the Indian subcontinent, and it is considered to be an important alternative species for species diversification in India and other Asian countries (Areerat, 1987;Sahoo et al, ,2016Sahoo et al, , , 2019. C. magur has a great potential for species diversification projects due to the possibility for high-density rearing, since the catfish is an air-breathing species able to thrive in low dissolved oxygen environment, has therapeutic benefits, high nutritional profile made up of easily digestible proteins and high iron content in the muscle (Argungu et al, 2013;Debnath, 2011;Hossain et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

Maternal size on reproductive performance, egg and larval quality in the endangered Asian catfish, Clarias magur

Ferosekhan

Giri

Sahoo

et al. 2021

Aquaculture Research

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The Asian catfish, Clarias magur, is an endangered fish species, which is immensely important due to its high commercial value in India and other South-East Asian countries.Various anthropogenic activities and natural habitat loss have greatly impacted the biodiversity of C. magur in natural water bodies, leading to the addition of this species to the endangered species list. The development of captive spawning and selection of an ideal broodstock size are critical steps to maximize the efficiency and robustness of conservation efforts for the catfish. An induced spawning experiment was conducted to ascertain the reproductive performance, egg and larval quality of catfish broodstock from fish with varying body weights. Five female C. magur broodfish from each of the following size ranges, F65 (65 ± 5.0); F130 (130 ± 7.9), F180 (180 ± 3.5) and F250 (253 ± 9.7g), were selected along with male broodfish with the same body weight range. The present study's results revealed that the stripping response was higher (F = 2.06; p = 0.15) for medium-sized F180 magur female broodstock; however, no significant differences were observed for this group. Total (F = 20.79; p < 0.001) and relative fecundity (F = 3.09; p = 0.057) were found to be significantly higher for F250 and F65 broodfish respectively. Total fecundity had a strong significant positive correlation (r = 0.99; p = 0.012) and also had significant linear regression relation (R 2 = 0.98; p = 0.012) to maternal size. Hatching rate was observed to be significantly higher (F = 7.82; p = 0.002) for the medium-sized broodfish, F130. The medium-sized broodstock of 130-180 g had strong positive influence on the growth and survival of the progeny, while F250 broodfish produced poor-quality larvae, which resulted in reduced larval growth performance and survival. Specific growth rate (SGR) and thermal growth coefficient (TGC) were also found to be significantly higher for F130 female broodstock. Hence, the selection of medium-sized (130-180) or 1-to 2-year-old female broodstock had a significant effect on the reproductive performance, egg and larval quality of magur in captivity. The results from this study can be utilized as helpful and practical information enhancing selection protocols for the hatchery operators to select ideal broodstock based on size, enabling the production of viable egg and larvae in indoor conditions and a scalable seed production system.

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“…Among Asian countries, the most prominent species of Clarias (family Clariidae) used for aquaculture are C. batrachus in India, C. fuscus (Taiwan and Hawaii) and C. macrocephalus (South-East Asia) [ 3 ]. Recently, the population of C. batrachus significantly declined due to the anthropogenic activities and the introduction of morphologically similar exotic catfish, C. gariepinus (Burchell,1822) [ 3 , 4 ]. Subsequently, C. gariepinus has further increased the vulnerability of C. batrachus [ 5 , 6 ] that has led to listing of C. batrachus in ‘‘Critically Endangered’’ category of the IUCN (IUCN, 2007) red list of threatened species [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

“…Recently, the population of C. batrachus significantly declined due to the anthropogenic activities and the introduction of morphologically similar exotic catfish, C. gariepinus (Burchell,1822) [ 3 , 4 ]. Subsequently, C. gariepinus has further increased the vulnerability of C. batrachus [ 5 , 6 ] that has led to listing of C. batrachus in ‘‘Critically Endangered’’ category of the IUCN (IUCN, 2007) red list of threatened species [ 4 ]. Similar observations were also reported by Na-Nakorn and Brummett [ 7 ] who emphasized that the wild type population must be conserved from C. gariepinus, which may endanger the purity and viability of wild populations.…”

Section: Introductionmentioning

confidence: 99%

Molecular assessment of proteins encoded by the mitochondrial genome of Clarias batrachus and Clarias gariepinus

Chand

Kumar

Azad

2021

Biochemistry and Biophysics Reports

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The population of catfish, Clarias batrachus has substantially diminished in various countries and studies show that another related species Clarias gariepinus is replacing it. The better adaptability and survivability of C. gariepinus over C. batrachus could be attributed to the metabolic differences between these two species, which is primarily regulated by mitochondrial activities. To understand the reasons behind this phenomenon, we performed in silico analyses to decipher the differences between the proteins encoded by the mitochondrial genome of these two related species. Our analysis revealed that out of thirteen, twelve proteins encoded by the mitochondrial genome of these two species have substantial variations between them. We characterised these variations by analysing their effect on secondary structure, intrinsic disorder predisposition, and functional impact on protein and stability parameters. Our data show that most of the parameters are changing between these two closely related species. Altogether, we demonstrate the molecular insights into the mitochondrial genome-encoded proteins of these two species and predict their effect on protein function and stability that might be helping C. gariepinus to gain survivability better than the C. batrachus .

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Asian Catfish Clarias batrachus (Linnaeus, 1758) Getting Critically Endangered

Cited by 18 publications

References 21 publications

Impact of dietary fats on fatty acids profile of threatened Asian cafish (Clarias batrachus, Linnaeus, 1758)

Impact of dietary fats on fatty acids profile of threatened Asian cafish (Clarias batrachus, Linnaeus, 1758)

Maternal size on reproductive performance, egg and larval quality in the endangered Asian catfish, Clarias magur

Molecular assessment of proteins encoded by the mitochondrial genome of Clarias batrachus and Clarias gariepinus

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