alexa Abstract | Stock Assessment of Indian Scad, Decapterus Russelli in Pakistani Marine Waters and Its Impact on the National Economy
ISSN: 2150-3508

Fisheries and Aquaculture Journal
Open Access

OMICS International organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.

Open Access Journals gaining more Readers and Citations

700 Journals and 15,000,000 Readers Each Journal is getting 25,000+ Readers

This Readership is 10 times more when compared to other Subscription Journals (Source: Google Analytics)

Research Article Open Access

Abstract

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 relation E=0.630 were obtained. Growth performance indices for L∞ and W∞ were performed using FiSAT-II program in order to estimate the limit and target reference points of stock exploitation were, Φ'=2.900 per year and Φ=0.170 per year, respectively. The results revealed that the natural fishing level of D. russelli (1.42 per year) was higher than the biological reference points F0.1 (0.85) and Fmax (0.9). Moreover the proportion of current mortality Fcurrent obtained was 0.630, representing that stock of D. russelli as highly exploited.It can be concluded from this study that the population parameters and the stock of D. russelli showed overexploitation in the northern parts of the Arabian Sea coast of Pakistan.

 

To read the full article Peer-reviewed Article PDF image | Peer-reviewed Full Article image

Author(s): Muhammad Talib Kalhoro, Mu Yongtong*, Muhsan Ali Kalhoro, Memon Aamir Mahmood, Shah Syed Babar Hussain, Mohsin Muhammad and Pavase Tushar Ramesh

Keywords

Indian scad, Economic management, Stock assessment, Exploitation status, Pakistan, Fish Production, Fishing Technology, Marine Food, Tropical Aquaculture and Fisheries

Share This Page

Additional Info

Loading
Loading Please wait..
 
 
 
Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

 
© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version
adwords