Changes in the Biochemical Composition of Sargassum ilicifolium Before and After the Monsoon in Chabahar Bay, Gulf of Oman, Iran

• Zahra Kowsari Sedgh ^[2] ; Mohammad Fakhrian ^[1]
  1. [1] Islamic Azad University, Tehran

     Islamic Azad University, Tehran

     Irán

     
  2. [2] Islamic Azad University, Kurdistan, Iran
• Localización: Thalassas: An international journal of marine sciences, ISSN 0212-5919, Vol. 39, Nº. 1, 2023, págs. 1-6
• Idioma: inglés
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• Resumen

  • This study aimed to investigate the effect of physicochemical factors on the biochemical compounds of Sargassum ilicifolium (including protein, carbohydrate, lipid, and Astaxanthin) before and after the Monsoon in the waters of Chabahar Bay located in the Gulf of Oman. Sampling before Monsoon was performed on January 11, 2019, and sampling after Monsoon was performed on September 11, 2019. Scattered sargassum samples (Sargassum ilicifolium) were collected from the eastern part of Chabahar port. According to the result obtained, there were significant differences between the measured Total protein, Ash, Carbohydrate, Moisture, and Astaxanthin before and after Monsoon (P<0.05). The result also showed that that were significant differences between Salinity, Dissolved Oxygen, Temperature, Nitrate, Phosphate, Silicate, Chlorophyll a, and Chlorophyll c before and after the monsoon (P<0.05). Pearson correlation showed that Total protein was correlated with Salinity, Dissolved Oxygen, Temperature, Nitrate, and Chlorophyll-a (P<0.01). The total fiber was correlated with Salinity, Dissolved Oxygen, Temperature, Nitrate, Phosphate, Silicate, Chlorophyll a, Chlorophyll c (P<0.01), and pH and Chlorophyll b (P<0.05). Ash and carbohydrates were correlated with all measured factors (P<0.01; P<0.05), respectively. Moisture was correlated with Dissolved Oxygen, Temperature, Silicate, and Chlorophyll b (P<0.05). Astaxanthin was correlated with all factors except phosphate (P<0.05). CCA results showed that Salinity, pH, Nitrate, Phosphate, Chlorophyll a, and Chlorophyll c were effective on the Total protein, Ash, and Carbohydrate content of S. ilicifolium. Also, Dissolved Oxygen, Temperature, Silicate, and Chlorophyll b had the most effect on Total lipid, Total fiber, Moisture, and Astaxanthin content. Generally, physicochemical parameters have an impressive effect on the nutrient composition of sargassum. Significant correlations indicated that non-biological parameters play an important role in the biosynthesis of organic matter in the sargassum seaweed.