Impact of Seasonal Variation on the Growth Dynamics of the Marine Catfish, Arius maculatus (Siluriformes: Ariidae) Collected from Karachi Fish Harbour

  1. Amin, Muhammad 1
  2. Mohammad Shoaib 1
  3. Naveed Ahmad 3
  4. Mohammad Attaullah 59
  5. Ayaz Ali Khan 56
  6. Hazrat Ali 45
  7. Masarrat Yousuf 1
  8. Felipe Morcillo 78
  9. Ivar Zekker 2
  10. Islam Dad Buneri 1
  11. Mohamad Nor Azra 1011
  1. 1 Department of Zoology, University of Karachi, Karachi, Pakistan
  2. 2 Institute of Chemistry, University of Tartu, 14a Ravila St., Tartu, Estonia
  3. 3 Aquatic Diagnostic and Research Center Bahria University, Karachi-75260, Pakistan
  4. 4 Department of Chemistry, University of Malakand, Chakdara, Lower Dir, Khyber
  5. 5 Pakhtunkhwa, Pakistan
  6. 6 Department of Biotechnology, University of Malakand, Chakdara, Lower Dir, Khyber
  7. 7 Department of Biodiversity, Ecology and Evolution, Faculty of Biological Sciences,
  8. 8 Complutense University of Madrid E-28040 Madrid, Spain
  9. 9 Department of Zoology, University of Malakand, Chakdara, Lower Dir, Khyber
  10. 10 Institute of Tropical Aquaculture and Fisheries, Universiti Malaysia Terengganu, Kuala
  11. 11 Nerus, Terengganu, Malaysia
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Revista:
Pakistan Journal of Zoology

ISSN: 0030-9923

Año de publicación: 2024

Tipo: Artículo

DOI: 10.17582/JOURNAL.PJZ/20231125071011 GOOGLE SCHOLAR lock_openAcceso abierto editor

Otras publicaciones en: Pakistan Journal of Zoology

Resumen

Overfishing is the main cause of fish stock exploitation in the marine environment. In the current studygrowth dynamics of the marine catfish, Arius maculatus collected from Karachi Fish Harbour werestudied. The relationship between total length and weight (W=aLb) was significantly linear (p<0.001). Thecondition factor (Kf) varied from 1.06±0.12to 1.23±0.07. The ‘b’ values and R2 values indicated that thegrowth was significantly (p<0.001) positive allometric (b>3) in the monsoons season while in the pre- andpost-monsoon the growth was reported as significantly negative allometric (b<3). The negative allometricgrowth shows that the fish are unable to maintain their shape in the specific season. It is suggested to stopthe fishing activities for marine catfishes during the spawning and oral incubation period in pre-monsoonespecially from February to mid-April to ensure sustainable fishing with a better growth dynamic.

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Financiadores

  • Department of Zoology, University of Karachi, Karachi Pakistan