Search

Barbatia decussatais a member of intertidal communities occurring at rocky shores in the northern Persian Gulf. Population dynamic for this clam was explored from August 2011 to September 2012 on rocky intertidal shores in the northern Persian Gulf. The results showed that the Ark clam mostly occurred in the middle followed by lower intertidal zones and its distribution was associated with substrate morphology mostly occurring on shaded sides of boulders and cobbles followed by in crevices. Total shell length (SL) for 7064 individuals of Ark clams ranged from 2.21 to 53.93 mm. The growth parameters for the von Bertalanffy function wereL∞ = 57.75 mm,K = 0.47 year− 1, andt0 = − 0.29 year. The growth performance index (Φ′), longevity, asymptotic weight (W∞), and natural mortality were 3.2, 6.29 years, 40.38 g, and 1.79 year− 1, respectively. The exponent “b” value was 3.181 indicating that this clam bears a positive allometric growth pattern. The recruitment pattern was continuous with two major peaks. The sex ratio did not deviate from 1:1. The SL–total live weight (TLW) relationship, the SL–wet weight (WW) relationship, the SL–dry weight (DW) relationship, and the SL–ash-free dry weight (AFDW) relationship were TLW = 0.0001 × SL3.181, WW = 0.000015SL3.347, DW = 0.000009SL3.047, and AFDW = 0.000009SL3.22, respectively. [ABSTRACT FROM AUTHOR]

The article reports on the collection of live specimens of Clypeomorus isselii at the shores of Qeshm Island of the Persian Gulf in Iran from May 2007 to April 2008. The Persian Gulf is surrounded by dry terrains and has harsh weather conditions. The island is located in the western part of the Strait of Hormuz. The shellfishes collected are found on rocks or inside crevices. The shell size of the adult range from 26-28 millimeters, with a maximum of ten nodulose whorls.