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Paper Information

Journal:   IRANIAN SCIENTIFIC FISHERIES JOURNAL   SPRING 2008 , Volume 17 , Number 1; Page(s) 123 To 132.
 
Paper: 

GROWTH PARAMETERS, FISHING AND NATURAL MORTALITY AND EXPLOITATION RATE ESTIMATION OF EURYGLOSSA ORIENTALIS (BLOCH AND SCHNEIDER, 1801) IN WEST-NORTH OF THE PERSIAN GULF

 
 
Author(s):  MOHAMMADI GHOLAM HOSSEIN*, KHODADADI MOZHGAN
 
* SOUTH AQUACULTURE CENTER, AHWAZ, IRAN
 
Abstract: 

We used commercial fishing data and samples in the Choebdah landing near Abadan port to estimate population dynamic parameters for Euryglossa orientalis. Sampling period was October 2004 to October 2005. After collecting the samples, they were transported to the laboratory for further biometry measurements. The minimum and maximum length was 12 and 40cm respectively. Length-weight relationship was calculated as: W=0.0004*L2.5586 40. According to the equation, growth of Euryglossa orientalis is allometric. Length frequency data were processed in FiSAT -II package. Growth coefficient was estimated at K=0.28, infinite length was 37.57cm, total mortality was Z=2.09, natural mortality was M=0.92, and fishing mortality was F=1.17. Exploitation rate was calculated at E=0.56 and since the E value was higher than 0.5, over-fishing is expected to be happening to the species.

 
Keyword(s): EURYGLOSSA ORIENTALIS, POPULATION DYNAMICS, KHOUZESTAN PROVINCE, PERSIAN GULF
 
References: 
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