تأثير الاختلافات الفصلية على المكونات الكيميائية الرئيسية في بعض الطحالب البحرية بشاطئ منطقة الزاوية - الشمال الغربي من ليبيا
Keywords:
الطحالب البحرية, المكونات الكيميائية, القياسات البارامترية, الاختلافات الفصلية, الزاويةAbstract
This study was to determine the chemical composition of six types of marine algae Enteromorpha compressa (green algae); Padina pavonica, Cystoseira spinosa, Sargassum vulgare, and Dictyota dicotoma (brown algae), and Jania rubens (red algae) in Zawia area. These algae were collected from four locations; these locations are Della, Judaym, Alharsha, and Almotred from 1/9/2013 to 1/9/2014. Air temperature, water temperature, pH, and salinity were measured, the percentage of proteins, carbohydrates, fats, and ashes were determined.
The results revealed that the highest temperature of the air during summer in the Almotred was 31.00 Co, and of the water was 28.50 Co. They also showed that the highest pH in Judaym during winter was 28.50% and in Della during autumn was 8.28.Moreover, the highest value of salinity at Alharsha region during summer was 38.60 %.It was also noticed that the highest percentage of protein within the green algae E. compressa in Della was 15.85%of dry weight during spring, and of fat was 3.79% of dry weight during summer. At Almotred, the highest percentage of carbohydrates of dry weight of the brown algae C. spinosa was 79,20% in summer whereas the highest percentage of ashes dry P. pavonica was 59.43% of dry weight during winter.
It was also proved that there was a connection between the season and the percentage of protein (0,27), between the season and the percentage of fats (0.48), and between the season and the percentage of ashes (0,18) at p≥0,05.
