Changes of sea cucumber (Holothruia leucospilota) proximate composition during geographical- seasonal variation in the Persian Gulf and Oman sea waters

In this study, proximate composition of Holothuria leucospilota from Sistan and Baluchistan, Hormozgan to some parts of Bushehr provinces which were caught by diving, during autumn and winter 2016 and spring and summer 2017, determined. For this purpose, one station was selected in each province, three specimens from each three replication of different seasons sampled. In nutrition laboratory, all specimens from replication of each season of separated province, minced and analyzed proximate compositions protein, lipid, ash and humidity based on standard methods. Results showed that the studied sea cucumber species compromised relative high protein level (p<0.05). The highest protein content was found in Hormozgan at summer season (15±3.69) and lowest not significantly in Bushehr at autumn season (10±1.73) and Sistan and Baluchistan province at spring season (10±1.8), caused by higher WT. and consequently higer chlorophyll a contents in Hormozgan water at summer season compare to samples from other studies provinces at the same seasons. Humidity percentage were the highest in the sea cucumber caught at winter both in Bushehr (86.1±8.43) and Sistan–Baluchistan (86.1±7.43) provinces not significantly (p>0.05), while the lowest (p<0.05) was obtained from Hormozgan samples at spring season (81.1±5.63).  Lipid contents with low levels in this species showed the highest in Sistan and Baluchistan province at winter season (0.29±0.08) and the lowest lipid content was obtained from sampled in Hormozgan province at Summer time (0.12±0.02) (p<0.05). Ash body content of H. leucospilota species was the highest in samples from Bushehr province at winter season (3.0±0.24) and the lowest ash was found in specimens from Hormozgan province at winter season (2.08±0.24) (p<0.05).