Study and research on the fishing gears in northern waters of Persian Gulf (Khuzestan Province Coastal Waters)

Abstract

Study and research on the fishing gears in northern waters of Persian Gulf (Khuzestan Province Coastal Waters) was carried out from March 2009 to February 2010. Sampling was done for trawl in summer and autumn, for purse seine in autumn and for gillnet and trap in all seasons. The average of total catch was in trawl 167.9 1.06 kg. The rate of bycatch in ± 207.89 and trap 1.66 ±270.17, gillnet 275.86 ± 48.4, purse seine 1795.6 ± trawl net was 87 percent, purse seine net 30.49 percent, gill net 70 percent and trap 6.19 percent. In this study, the number of bycatch species in trawl net are 38 species, gill net 36 species, trap 10 species and purse seine net 4 species. The resul of two way ANOVA test in trawl net between bycatch and time, and between bycatch and place showed non-significant difrences (p>0.05, f= 0/3) (p> 0.05, f= 0.9). The result of two way ANOVA test in gillnet between bycatch and time, showed significant( p<0.05, f= 14.7), and between bycatch and place showed non-significant( p> 0.05, f=1.8). The result of two way ANOVA test in trap between bycatch and time and between bycatch and place was non-significant (p> 0.05, f= 0.5). According to the result, rate of bycatch of trawl net is higher than other gear, So control and manage of bycatch in trawl is most important.