Population Structure, Growth and Mortality Rates of Jinga Shrimp, Metapenaeus affinis in Fishing Grounds of Hormozgan Province, Iran
Journal Title: Caspian Journal of Applied Sciences Research - Year 2012, Vol 1, Issue 8
Abstract
Monthly sampling data of Metapenaeus affinis was analyzed to determine the age, growth and mortality rates form January 2010 to February 2011. The asymptotic total Carapace length was estimated to be 35mm for males and 47mm for females. The growth parameter K was calculated 1.1 Y-1 for females and 1.2 Y-1 for males while the average water temperature was26.5 ̊ C. The total mortality rate, natural mortality rate and fishing mortality rate was estimated (4.04, 1.95908 and 2.08) for males and (4.93, 1.74954 and 3.18) for females, respectively. Furthermore, the exploitation rate was 0.51 for males and 0.64 for females. Maximum age was 16-17 months and 15-16 months for females and males, respectively. According to the results, Metapenaeuss affinis growth is rapid from summer to autumn and slight from winter to spring. Natural mortality in males and females were close together but males were more vulnerable to fishing from females. A result showed M.affinin was overexploited in Hormozgan fishing grounds. Fishing effort of M.affins must be reduced in Hormozgan fishing grounds and nursery areas should be protected.
Authors and Affiliations
Mohammad Hasan Gerami, Seyed Yousef Paighambari, Rasool Ghorbani, Mohammad Momeni
Keywords
Related Articles
- EP ID EP108787
- DOI -
- Views 118
- Downloads 0
Synthesis and characterization of magnesium aluminates spinel via combustion method using malonic acid dihydrazide as fuel
Nanoparticle magnesium aluminate spinel powder MgAl2O4 was synthesized by combustion method at 300◦C via combusted a stoichiometric mixture of aluminum and magnesium nitrates with malonic acid dihydrazide as a fuel follo...
Characterization of RHA /PFA/CFA Adsorbent and Its Equilibrium and Kinetic Studies for Zn2+ Removal
Zinc removal was investigated by adsorption using a mixture of rice husk ash (RHA), palm oil fuel ash (PFA) and coal fly ash (CFA). Sol-gel method was used in the preparation of RHA/PFA/CFA adsorbent. In this study...
A Novel Microstrip Lowpass Filter with Ultra-Wide Stopband Using Butterfly-Shaped Resonator
In this paper, a novel lowpass filter with ultra-wide stopband using the butterfly-shaped resonator is proposed. This filter with -3 dB cutoff frequency at 1.74 GHz is designed. Maximum insertion loss is less than 0.1 dB...
Fabrication and Study of Mechanical Properties of Orange PEEL Reinforced Polymer Composite
During the last few years, utilization of natural bio-fruit waste have received much more attention than ever before from the research community all over the world. Utilization of natural fruit waste reduces the en...
Effect of Manual Turning Frequency on Physico-Chemical Parameters During the Oil Palm Frond and Cow Dung Composting
This study aims at investigating the efficiency of oil palm frond composting, by the manual turning in different treatments. Oil palm frond (OPF) and cow dung, mixed at a 3:1 ratio, with 60% (w/v) moisture content,...