ASSESSMENT OF BIOECONOMIC AND MANAGEMENT ASPECTS OF TUNA FISHERY RESOURCE
IN PAKISTAN
M. Mohsin1, Y. Hengbin*2, Z. Luyao3, S. B.
H. Shah4
1College of International Finance and Trade, Zhejiang Yuexiu
University of Foreign Languages, Shaoxing, 312000, China, 2Marine
Resource Management, Wenzhou Business College, Wenzhou, 325000, China, 3Strategic
Management, School of Business, Hanyang University, Seoul, 04763, Korea and 4College
of Fisheries, Ocean University of China, Qingdao, 266003, China
*Corresponding author’s email: 20190251@wzbc.edu.cn
ABSTRACT
The ongoing open-access regime in Pakistan
raises a big question regarding the management and economic performance of
commercially important fishery resources in Pakistan, such as tuna nei. This
study appraises the management and economic aspects of tuna nei fishery through catch statistics (1995-2009) and survey data. The Gordon-Schaefer
model was used to estimate levels of harvests and their corresponding efforts
for three exploitation levels: maximum economic yield (MEY), maximum
sustainable yield (MSY), and open-access yield (OAE). At MSY, the harvest,
effort, and revenue were HMSY = 10,299 MT, EMSY = 1,382,
and ∏MSY = 40.325 billion PKR; at MEY, they were HMEY = 10,267 MT, EMEY = 1,305, and ∏MEY = 40.468 billion
PKR; and at OAE, harvest and effort were HOAY = 2,181 MT and EOAY = 2,610, respectively. Results find that effort is high for all
exploitation levels and needs to reduce. Since tuna nei is biologically
overfished, decrease in effort will result in not only larger catches but also
more revenue. Revenue generated at MEY compared with MSY is significantly
higher, which can be achieved by lowering effort. Thus, it is prerequisite to
formulate and enforce fishery policies that simultaneously control effort,
conserve tuna nei fishery, and increase revenue.
Keywords: maximum economic
yield, bioeconomics, revenue, GS model, tuna, management, Pakistan |