Estimation of Production Function in Fishery on the Coasts of Caspian Sea
This research was conducted for the first time at the
southeastern coasts of the Caspian Sea in order to evaluate the
performance of osteichthyes cooperatives through production (catch)
function. Using one of the indirect valuation methods in this research,
contributory factors in catch were identified and were inserted into
the function as independent variables. In order to carry out this
research, the performance of 25 Osteichthyes catching cooperatives
in the utilization year of 2009 which were involved in fishing in
Miankale wildlife refuge region. The contributory factors in catch
were divided into groups of economic, ecological and biological
factors. In the mentioned function, catch rate of the cooperative were
inserted into as the dependant variable and fourteen partial variables
in terms of nine general variables as independent variables. Finally,
after function estimation, seven variables were rendered significant at
99 percent reliably level. The results of the function estimation
indicated that human resource (fisherman quantity) had the greatest
positive effect on catch rate with an influence coefficient of 1.7 while
weather conditions had the greatest negative effect on the catch rate
of cooperatives with an influence coefficient of -2.07. Moreover,
factors like member's share, experience and fisherman training and
fishing effort played the main roles in the catch rate of cooperative
with influence coefficients of 0.81, 0.5 and 0.21, respectively.
[1] Bakhshode, M. A, 1992.Agricultural Economy, Shahid Bahonar
University, Kerman, pp. 225-229.
[2] Hajian, S.P, 1995. The study of Acipenseridae's population dispersal of
in Gilan's waters, proceeding of the 3rd international conference of
fisheries, Tehran, pp.217-223.
[3] Horn, H.S, 1952, Measurement of qualitative variables in econometrics
studies, Am. Nat, 100:419-424.
[4] Jahanifar, K. and Z. Abedi, 2009. Estimation of osteichthyes Catch
Function and Investigation of Effective Economic Factors of Fishing in
South- eastern of Caspian Sea, World Apply Science Journal,7(12)
:1512-1515.
[5] Pidal, J. and F. Owazem, 1987. Production Economy, Tehran University
Publication Center, Tehran, pp.33-35.
[6] Mortazavi, A.S, 2001. Estimation of shrimp production and supply
function in the southern provinces of Iran, the Agricultural economics
journal, 26(16):220-227.
[7] Mostafazade, R. S, 1991. The study of contributory factors in the catch
of beach net cooperatives in the southwestern coasts of the Caspian Sea,
proceeding of the 2nd national conference of fisheries and sustainable
development, Tehran, pp.178-181.
[8] Riahi, A.R.2001. Determination of the Budgel and changes of Lead and
Cadmium in tissues of Different fish species in Haraz River, Journal of
Environment studies, 27(27):15-22.
[9] Soltani, G. and B. Najafi, 1994. Agricultural Economy, Tehran
University Publication Center, Tehran, pp.202-213.
[10] Thorne, C. R., 2008. Production Function in agriculture sector in
Malaysia, Proceedings of the 1st international Symposium on agriculture
and fisheries, Malaysia, pp. 453-461.
[1] Bakhshode, M. A, 1992.Agricultural Economy, Shahid Bahonar
University, Kerman, pp. 225-229.
[2] Hajian, S.P, 1995. The study of Acipenseridae's population dispersal of
in Gilan's waters, proceeding of the 3rd international conference of
fisheries, Tehran, pp.217-223.
[3] Horn, H.S, 1952, Measurement of qualitative variables in econometrics
studies, Am. Nat, 100:419-424.
[4] Jahanifar, K. and Z. Abedi, 2009. Estimation of osteichthyes Catch
Function and Investigation of Effective Economic Factors of Fishing in
South- eastern of Caspian Sea, World Apply Science Journal,7(12)
:1512-1515.
[5] Pidal, J. and F. Owazem, 1987. Production Economy, Tehran University
Publication Center, Tehran, pp.33-35.
[6] Mortazavi, A.S, 2001. Estimation of shrimp production and supply
function in the southern provinces of Iran, the Agricultural economics
journal, 26(16):220-227.
[7] Mostafazade, R. S, 1991. The study of contributory factors in the catch
of beach net cooperatives in the southwestern coasts of the Caspian Sea,
proceeding of the 2nd national conference of fisheries and sustainable
development, Tehran, pp.178-181.
[8] Riahi, A.R.2001. Determination of the Budgel and changes of Lead and
Cadmium in tissues of Different fish species in Haraz River, Journal of
Environment studies, 27(27):15-22.
[9] Soltani, G. and B. Najafi, 1994. Agricultural Economy, Tehran
University Publication Center, Tehran, pp.202-213.
[10] Thorne, C. R., 2008. Production Function in agriculture sector in
Malaysia, Proceedings of the 1st international Symposium on agriculture
and fisheries, Malaysia, pp. 453-461.
@article{"International Journal of Biological, Life and Agricultural Sciences:54020", author = "Komeil Jahanifar and Zahra Abedi and Yaghob Zeraatkish", title = "Estimation of Production Function in Fishery on the Coasts of Caspian Sea", abstract = "This research was conducted for the first time at the
southeastern coasts of the Caspian Sea in order to evaluate the
performance of osteichthyes cooperatives through production (catch)
function. Using one of the indirect valuation methods in this research,
contributory factors in catch were identified and were inserted into
the function as independent variables. In order to carry out this
research, the performance of 25 Osteichthyes catching cooperatives
in the utilization year of 2009 which were involved in fishing in
Miankale wildlife refuge region. The contributory factors in catch
were divided into groups of economic, ecological and biological
factors. In the mentioned function, catch rate of the cooperative were
inserted into as the dependant variable and fourteen partial variables
in terms of nine general variables as independent variables. Finally,
after function estimation, seven variables were rendered significant at
99 percent reliably level. The results of the function estimation
indicated that human resource (fisherman quantity) had the greatest
positive effect on catch rate with an influence coefficient of 1.7 while
weather conditions had the greatest negative effect on the catch rate
of cooperatives with an influence coefficient of -2.07. Moreover,
factors like member's share, experience and fisherman training and
fishing effort played the main roles in the catch rate of cooperative
with influence coefficients of 0.81, 0.5 and 0.21, respectively.", keywords = "Production Function, Coefficient, Variable,Osteichthyes, Caspian Sea", volume = "4", number = "5", pages = "269-4", }