<span style="font-size:15.0pt;font-family:"Times New Roman","serif"; mso-fareast-font-family:"Times New Roman";mso-bidi-font-family:Mangal; mso-ansi-language:EN-GB;mso-bidi-language:HI" lang="EN-GB">Population dynamic of fiddler crab, <i>Uca</i> <i>sindensis</i> (Decapoda:Ocypodidae) in Pohl port mangrove forest, Persian Gulf, Iran </span>

Abstract

2217-2222The population dynamics of Uca sindensis were investigated for the first time in Pohl port mangrove in north of Persian Gulf using Length- Frequency analysis. Nine 0.5 m2 quadrates were randomly sampled during low tide periods every month, from October 2009 to September 2010. The quadrates ran in three substrate, sand, silt and muddy flat, in order to sample of total substrate. A total of 710 crabs, 343 (47.7%) males and 367 (52.3%) females, were sampled. Sex ratio, von Bertalanffy growth parameters, recruitment pattern, growth performance and natural mortality coefficient were calculated and also Length-based stock assessment using FISAT software package. There was not different significant in sex ratio (1:1.069).The CW, Asymptotic Length(L∞) and Growth curvature (K) and φ were 3 to 14.5 mm, 17.3 mm, 0.33 year-1and1.98 in males and 4 to 12 mm, 16.28 mm0.36 year-1 and 1.94 in female, respectively. The natural mortality coefficient and was estimated to be 0.95 for males and 1.05 for females. The growth of U. sindensis follows the seasonality oscillating VBGF typical of soil temperate. Recruitment pattern shows seasonal recruitment pattern in total population. In conclusion, descriptive of life U. sindensis has a k-selection strategy that in die young, reproduce early, live last and high mortality. </span