Fisheries and Aquaculture Journal
Open Access
ISSN: 2150-3508
ISSN: 2150-3508
Muhsan Ali Kalhoro
China
Research Article
Stock Assessment of Indian Scad, Decapterus Russelli in Pakistani Marine Waters and Its Impact on the National Economy
Author(s): Muhammad Talib Kalhoro, Mu Yongtong, Muhsan Ali Kalhoro, Memon Aamir Mahmood, Shah Syed Babar Hussain, Mohsin Muhammad and Pavase Tushar RameshMuhammad Talib Kalhoro, Mu Yongtong, Muhsan Ali Kalhoro, Memon Aamir Mahmood, Shah Syed Babar Hussain, Mohsin Muhammad and Pavase Tushar Ramesh
The stock assessment, of Indian scad Decapterus russelli (Ruppell, 1830) from the northern Arabian Sea in Pakistan was evaluated. The samples of Indian scad (13300 specimens), ranging from 1-31 cm (FL) and 1-400 g (TW) were collected from the commercial fish landing center located at Karachi harbor. The parameters of fish length-weight relationship were calculated from the aggregated data as a=0.0323, b=2.66 with R2=0.954, indicating slightly negative allometric growth between the relationship. The length frequency samples from September 2013 to November 2014 was analyzed using FISAT II software, including the ELEFAN-I method. The growth parameters obtained using ELEFAN I was: L∞=32.55 cm, K=0.750 per year, t0=-0.678 with an Rn value of 0.220. Natural, total and fishing mortality M=1.42 per year, Z=3.84 per year at CI of 95% (CI=3.11-4.58) where F=2.422 per year and exploitation.. View More»
DOI:
10.4172/2150-3508.1000200