scholarly journals Ontogeny and morphometrics of the gills and swim bladder of air-breathing striped catfish Pangasianodon hypophthalmus

2017 ◽  
Vol 221 (3) ◽  
pp. jeb168658 ◽  
Author(s):  
Le My Phuong ◽  
Do Thi Thanh Huong ◽  
Hans Malte ◽  
Jens Randel Nyengaard ◽  
Mark Bayley
Keyword(s):  
Swim Bladder ◽  
Air Breathing ◽  
Pangasianodon Hypophthalmus ◽  
Striped Catfish

scholarly journals Comparative Transcriptome Analysis During the Seven Developmental Stages of Channel Catfish (Ictalurus punctatus) and Tra Catfish (Pangasianodon hypophthalmus) Provides Novel Insights for Terrestrial Adaptation

2021 ◽  
Vol 11 ◽  
Author(s):  
Xiaoli Ma ◽  
Mei Shang ◽  
Baofeng Su ◽  
Anne Wiley ◽  
Max Bangs ◽  
...  
Keyword(s):  
Ictalurus Punctatus ◽  
Channel Catfish ◽  
Developmental Stages ◽  
Critical Time ◽  
Comparative Genomic ◽  
Swim Bladder ◽  
Terrestrial Environment ◽  
Air Breathing ◽  
Pangasianodon Hypophthalmus ◽  
Tra Catfish

Tra catfish (Pangasianodon hypophthalmus), also known as striped catfish, is a facultative air-breather that uses its swim bladder as an air-breathing organ (ABO). A related species in the same order (Siluriformes), channel catfish (Ictalurus punctatus), does not possess an ABO and thus cannot breathe in the air. Tra and channel catfish serve as great comparative models for investigating possible genetic underpinnings of aquatic to land transitions, as well as for understanding genes that are crucial for the development of the swim bladder and the function of air-breathing in tra catfish. In this study, hypoxia challenge and microtomy experiments collectively revealed critical time points for the development of the air-breathing function and swim bladder in tra catfish. Seven developmental stages in tra catfish were selected for RNA-seq analysis based on their transition to a stage that could live at 0 ppm oxygen. More than 587 million sequencing clean reads were generated, and a total of 21,448 unique genes were detected. A comparative genomic analysis between channel catfish and tra catfish revealed 76 genes that were present in tra catfish, but absent from channel catfish. In order to further narrow down the list of these candidate genes, gene expression analysis was performed for these tra catfish-specific genes. Fourteen genes were inferred to be important for air-breathing. Of these, HRG, GRP, and CX3CL1 were identified to be the most likely genes related to air-breathing ability in tra catfish. This study provides a foundational data resource for functional genomic studies in air-breathing function in tra catfish and sheds light on the adaptation of aquatic organisms to the terrestrial environment.

scholarly journals Influences of Salinity on Embryonic and Larval Development of Striped Catfish Pangasianodon hypophthalmus

2021 ◽  
Vol 8 ◽  
Author(s):  
Farzana Hossain ◽  
S. M. Majharul Islam ◽  
Mohammad Ashaf-Ud-Doulah ◽  
Md Shaha Ali ◽  
Md Sadiqul Islam ◽  
...  
Keyword(s):  
Larval Development ◽  
Yolk Sac ◽  
Salinity Intrusion ◽  
Swim Bladder ◽  
Pangasianodon Hypophthalmus ◽  
Lc50 Value ◽  
Different Types ◽  
Striped Catfish ◽  
Swim Bladder Inflation ◽  
Embryonic And Larval Development

Salinity intrusion in coastal areas due to climate change is alarming. In this study, the effects of salinity on embryonic and larval development of striped catfish (Pangasianodon hypophthalmus) were studied experimentally. Embryos and larvae were exposed to seven salinity treatments (0, 2, 4, 6, 8, 10, and 12 ppt), each with three replications. Considerable survivability of embryos was recorded up to 6 ppt salinity. Mortality of embryos significantly increased at 8 and 10 ppt salinity, and 100% mortality was displayed within 12 h of exposure at 12 ppt salinity. The rate of hatching was significantly reduced at 8 and 10 ppt salinity. The 24 h lethal concentration (LC50) value of salinity for embryo was 11.24 ppt. Different types of deformities, such as undeveloped yolk sac, elongated gastrula yolk sac, and yolk sac bud, were highest at 10 ppt salinity. Similar to the embryo, considerable survivability of larvae was recorded up to 6 ppt salinity, and 100% mortalities were found within 24 h of exposure at 12 ppt salinity. The 24 and 48 h LC50 values of salinity for larvae were 10.63 and 8.48 ppt, respectively. Several types of deformities, including yolk sac ulceration, spine scoliosis, tail bent, yolk sac edema, and compromised swim bladder inflation, were highest at 10 ppt salinity after 48 h of exposure. Within 24 h of exposure, about 80% yolk sac of the larvae was absorbed at 8 and 10 ppt salinity, while 30%–50% yolk sac was absorbed at 0–6 ppt salinity. Growth rates in terms of length and weight were higher at 0, 2, and 4 ppt salinity and moderate at 6 and 8 ppt salinity. Overall, the current findings define the limits to optimize hatchery procedures for the culture of this species in low saline brackish water.

scholarly journals Transcriptomic analysis of the immune response against A. hydrophila infection in striped catfish Pangasianodon hypophthalmus

Aquaculture ◽  
2021 ◽  
pp. 737446
Author(s):  
Zhuo-hao Ruan ◽  
Liang-sen Jiang ◽  
Yi-fu Li ◽  
Zhi-qiang Lu ◽  
Xian-can Chen ◽  
...  
Keyword(s):  
Immune Response ◽  
Transcriptomic Analysis ◽  
Pangasianodon Hypophthalmus ◽  
Striped Catfish

Dietary ascorbic acid requirement for growth of striped catfish, Pangasianodon hypophthalmus (Sauvage, 1878) juveniles

2017 ◽  
Vol 24 (1) ◽  
pp. 616-624 ◽  
Author(s):  
N. Daniel ◽  
A.P. Muralidhar ◽  
P.P. Srivastava ◽  
K.K. Jain ◽  
K. Pani Prasad ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Pangasianodon Hypophthalmus ◽  
Striped Catfish

Seed production practices of striped catfish, Pangasianodon hypophthalmus in the Mekong Delta region, Vietnam

Aquaculture ◽  
2010 ◽  
Vol 306 (1-4) ◽  
pp. 92-100 ◽  
Author(s):  
Tam M. Bui ◽  
Lam T. Phan ◽  
Brett A. Ingram ◽  
Thuy T.T. Nguyen ◽  
Geoff J. Gooley ◽  
...  
Keyword(s):  
Seed Production ◽  
Mekong Delta ◽  
Delta Region ◽  
Pangasianodon Hypophthalmus ◽  
Striped Catfish ◽  
Production Practices

scholarly journals Monitoring of reproductive health in the striped catfish Pangasianodon hypophthalmus (Sauvage, 1878) from the Saen Saep Canal, Thailand

2021 ◽  
Vol 20 (1) ◽  
pp. 61-72
Author(s):  
Thawanrat Puttipong ◽  
◽  
Sinlapachai Senarat ◽  
Jes Kettratad ◽  
Chitchai Chantangsi ◽  
...  
Keyword(s):  
Reproductive Health ◽  
Industrial Effluents ◽  
Reproductive Status ◽  
Polluted Water ◽  
Canal System ◽  
Vacuolar Degeneration ◽  
Pangasianodon Hypophthalmus ◽  
Eosinophilic Cytoplasm ◽  
Canal Systems ◽  
Striped Catfish

Khlong Saen Saep is one of the most important and large canal systems in Bangkok, Thailand. However, the emergence of heavily polluted water has occasionally been reported due to the domestic sewage and industrial effluents discharged into the system. This situation may affect the reproductive status of aquatic lives residing in this canal. To evaluate the reproductive status of the canal inhabitant, the striped catfish Pangasianodon hypophthalmus (Sauvage, 1878)—a common dweller of the Saen Saep Canal—was collected from two selected stations, the Bumpen Nua Temple and the Kamalun Islam Mosque. The fish gonads were then anatomically and histologically examined. The results indicated that neither parasites nor ovary with external abnormality were found. Nevertheless, several histological alterations were detected, including vacuolar degeneration of previtellogenic oocytes, accumulation of melanomacrophage centers (MMCs), and atretic oocytes. Moreover, severe histopathological changes, such as the eosinophilic cytoplasm of spermatogonia, MMCs, blood congestion, and syncytium of spermatozoa, were observed in the fish testis. Our study suggested that the environmental stress and pollutions previously reported from the Saen Saep Canal possibly underpin the gonadal impairments of P. hypophthalmus examined and may have adverse impact on the reproductive health of others living in this canal system

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